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Journal articles on the topic 'Aseismic moment'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Xin, Chun Lei, and Bo Gao. "Composite Lining Aseismic Design for Fault-Crossing Tunnel Structures." Advanced Materials Research 971-973 (June 2014): 30–34. http://dx.doi.org/10.4028/www.scientific.net/amr.971-973.30.

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Although underground structures have stronger aseismic performance than ground structures, seismic disasters of mountain tunnels were fairly conspicuous in Wenchuan Great Earthquake. On the basis of seismic disaster analysis, a composite lining designfor tunnel structures across active fault was put forward. Three-dimensional numerical simulation method was used to analyze aseismic and damping effect of this structure. The results show that: (1)After setting aseismic and damping structure, the maximum internal forces value in lining the pattern of internal forces will not change. (2)Aseismic a

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2

Passarelli, Luigi, Paul Antony Selvadurai, Eleonora Rivalta, and Sigurjón Jónsson. "The source scaling and seismic productivity of slow slip transients." Science Advances 7, no. 32 (2021): eabg9718. http://dx.doi.org/10.1126/sciadv.abg9718.

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Slow slip events (SSEs) represent a slow faulting process leading to aseismic strain release often accompanied by seismic tremor or earthquake swarms. The larger SSEs last longer and are often associated with intense and energetic tremor activity, suggesting that aseismic slip controls tremor genesis. A similar pattern has been observed for SSEs that trigger earthquake swarms, although no comparative studies exist on the source parameters of SSEs and tremor or earthquake swarms. We analyze the source scaling of SSEs and associated tremor- or swarm-like seismicity through our newly compiled dat

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3

McGarr, A., and Andrew J. Barbour. "Injection‐Induced Moment Release Can Also Be Aseismic." Geophysical Research Letters 45, no. 11 (2018): 5344–51. http://dx.doi.org/10.1029/2018gl078422.

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4

Qi, Kang. "Aseismic Performance Analysis of High-Strength Concrete Circular Pier." Applied Mechanics and Materials 431 (October 2013): 161–66. http://dx.doi.org/10.4028/www.scientific.net/amm.431.161.

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Circular pier are widely used in bridge substructure. Strength and ductility are two important indicators reflect its aseismic performance. Based on the analysis of complete bending moment-curvature curve curvature, bending strength and ductility on reinforced concrete circular pier cross-section, this paper analyzes the aseismic performance of high-strength concrete circular pier. And it can provide reference for using high strength concrete more reasonable.

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5

Huang, Xing, Yanchuan Li, Xinjian Shan, et al. "InSAR Observations Reveal Variations in Shallow Creep on the Kangding Segment of the Xianshuihe Fault." Seismological Research Letters 94, no. 5 (2023): 2291–300. http://dx.doi.org/10.1785/0220230053.

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Abstract Investigating the spatiotemporal characteristics of aseismic shallow creep provides insights into interseismic steady-state and/or postseismic transient behavior of faults. In this study, we focus on the Kangding segment of the Xianshuihe fault in eastern Tibet, where the 2014 Mw 5.9 Kangding earthquake occurred. Previous geodetic observations in 1999–2021 identified apparent shallow creep along this segment; however, whether the aseismic slip is secular creep, afterslip of the 2014 Kangding earthquake, or the combined effect remains unresolved. We process descending and ascending Int

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6

Yang, Qingshan, Bo Li, and Na Yang. "Aseismic behaviors of steel moment resisting frames with opening in beam web." Journal of Constructional Steel Research 65, no. 6 (2009): 1323–36. http://dx.doi.org/10.1016/j.jcsr.2009.01.007.

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7

Bürgmann, R., M. G. Kogan, V. E. Levin, C. H. Scholz, R. W. King, and G. M. Steblov. "Rapid aseismic moment release following the 5 December, 1997 Kronotsky, Kamchatka, Earthquake." Geophysical Research Letters 28, no. 7 (2001): 1331–34. http://dx.doi.org/10.1029/2000gl012350.

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8

Sawires, Rashad, José A. Peláez, Federica Sparacino, Ali M. Radwan, Mohamed Rashwan, and Mimmo Palano. "Seismic and Geodetic Crustal Moment-Rates Comparison: New Insights on the Seismic Hazard of Egypt." Applied Sciences 11, no. 17 (2021): 7836. http://dx.doi.org/10.3390/app11177836.

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A comparative analysis of geodetic versus seismic moment-rate estimations makes it possible to distinguish between seismic and aseismic deformation, define the style of deformation, and also to reveal potential seismic gaps. This analysis has been performed for Egypt where the present-day tectonics and seismicity result from the long-lasting interaction between the Nubian, Eurasian, and Arabian plates. The data used comprises all available geological and tectonic information, an updated Poissonian earthquake catalog (2200 B.C.–2020 A.D.) including historical and instrumental datasets, a focal-

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9

Gan, Shurong, Wen Pan, Hexian Su, Yucheng Jin, Chuanwei Zhu, and Shibin Yu. "Experimental Study and Numerical Simulation Analysis on Reinforcement of Mortise-Tenon Joints with Flat Steel Strips." Advances in Civil Engineering 2023 (March 2, 2023): 1–24. http://dx.doi.org/10.1155/2023/5398662.

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To study the aseismic performance after the reinforcement of the mortise-tenon joints of folk houses with traditional Chuan-Dou style wood structure and their steel plate, test specimens of joints—two for Tou mortise-tenon joints, two for Ban mortise-tenon joints, and two for dovetail mortise-tenon joints—were fabricated out of hemlock, and steel plates were utilized to reinforce one of the joint specimens of each type on the middle part of the mortise-tenon joint. By carrying out pseudo-static tests on the joints and building ABAQUS numerical model; the position where the mortise-tenon joints

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10

Plattner, Christina, Alessandro Parizzi, Sara Carena, et al. "Long-lived afterslip of the 2013 Mw 6.1 Minab earthquake detected by Persistent Scatterer Interferometry along the Irer fault (western Makran-Zagros transition zone, Iran)." Geophysical Journal International 229, no. 1 (2021): 171–85. http://dx.doi.org/10.1093/gji/ggab456.

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SUMMARY The ratio of seismogenic to aseismic deformation along active faults is needed to estimate their seismogenic potential and hazards. Seismologic and geodetic methods routinely capture coseismic displacements, but data acquisition requirements to fully document post-seismic deformation are not well known. Our study documents afterslip between about 18 months and 4 years after a mid-size earthquake and, based on remote structural mapping, we document fault rupture segments not previously associated with that earthquake. Persistent scatterer interferometric analysis of Sentinel-1A aperture

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11

Wang, Jing Feng, Xin Yi Chen, and Lin Hai Han. "Structural Behaviour of Blind Bolted Connection to Concrete-Filled Steel Tubular Columns." Advanced Materials Research 163-167 (December 2010): 591–95. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.591.

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This paper studies structural behaviour of the blind bolted connections to concrete-filled steel tubular columns by a serial of experimental programs, which conducted involving eight sub-assemblages of cruciform beam-to-column joints subjected to monotonic loading and cyclic loading. The moment-rotation hysteretic relationships and failure models of the end plate connections have been measured and analyzed. A simplified analysis model for the blind bolted connections is proposed based on the component method. It is concluded that the blind bolted end plate connection has reasonable strength an

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12

Li, Bo, Qingshan Yang, and Na Yang. "An Investigation on Aseismic Connection with Opening in Beam Web in Steel Moment Frames." Advances in Structural Engineering 14, no. 3 (2011): 575–87. http://dx.doi.org/10.1260/1369-4332.14.3.575.

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13

Melnikova, V., N. Gileva, Ya Radziminovich та A. Filippova. "THE SEPTEMBER 2, 2015, КR=14.0, Mw=5.1, I0=7–8 TALLAY EARTHQUAKE at the NORTH-EASTERN FLANK of the BAIKAL RIFT". Earthquakes in Northern Eurasia, № 24 (14 грудня 2021): 305–13. http://dx.doi.org/10.35540/1818-6254.2021.24.29.

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We consider September 2, 2015, Mw=5.1 Tallay earthquake occurred in the previously aseismic area of the North-Muya Ridge adjoining to the Muya-Kuanda basin from the north. Instrumental and macroseismic data on this seismic event are presented. Its seismic moment tensor is calculated from surface wave amplitude spectra. New data on strong ground motions are obtained within the north-eastern flank of the Baikal rift. The Tallay earthquake is found to be connected with seismogenic renewal of the second-order multidirectional faults activated in the rift stress field.

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14

Yang, Hao Lin, Xin Zhi Dang, Wan Cheng Yuan, and De Qin Song. "A Self-Centering Seismic Design for Bridge with Pile-Cap Foundation." Advanced Materials Research 743 (August 2013): 155–58. http://dx.doi.org/10.4028/www.scientific.net/amr.743.155.

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In this paper, an alternative aseismic system for bridge with pile-cap foundation called a separated pile-cap with proper material set in the gap layer was proposed. To simulate the system, a 3-dimensional finite element model for a continuous beam bridge was built. The seismic responses of the model, including behavior of the restrainer, moment at the bottom of the pier and pullout force of the piles with different restrainer lengths under 3 longitudinal artificial earthquake waves were analyzed. The results show that this system can reduce the seismic response significantly.

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15

Liu, Chun Yang, Zhen Bao Li, Shuang Qu, Xue Jun Zhou, and Xin Ping Wang. "Research Progress on Bending Strength Calculation of Biaxial Compression-Bending Reinforced Concrete Column." Applied Mechanics and Materials 351-352 (August 2013): 392–95. http://dx.doi.org/10.4028/www.scientific.net/amm.351-352.392.

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Lots of bulidings had collapsed in Wenchuan big earthquake in 2008, one important reason is that the structure design has been launched only in X or Y axis of the building respectively, which means the oblique direction compression-bending characteristic has not been fully considered in the actual structure design process. In addition, the moment bearing strength in oblique direction is smaller than the moment strength about the principle axis of the column, so the research on bending strength calculation of biaxial/oblique compression-bending RC column is important to improve the aseismic saf

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16

Chaves, E. J., S. Y. Schwartz, and R. E. Abercrombie. "Repeating earthquakes record fault weakening and healing in areas of megathrust postseismic slip." Science Advances 6, no. 32 (2020): eaaz9317. http://dx.doi.org/10.1126/sciadv.aaz9317.

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Repeating earthquakes (REs) rupture the same fault patches at different times allowing temporal variations in the mechanical behavior of specific areas of the fault to be interrogated over the earthquake cycle. We study REs that reveal fault weakening after a large megathrust earthquake in Costa Rica, followed by fault recovery. We find shorter RE recurrence intervals and larger slip areas immediately following the mainshock that both gradually return to pre-earthquake values. RE seismic moments remain nearly constant throughout the earthquake cycle. This implies a balance between fault weaken

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17

Zhang, Yumin, and Jiawu Li. "Effect of Material Characteristics of High Damping Rubber Bearings on Aseismic Behaviors of a Two-Span Simply Supported Beam Bridge." Advances in Materials Science and Engineering 2020 (September 23, 2020): 1–8. http://dx.doi.org/10.1155/2020/9231382.

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There are a large number of damping materials in high-damping rubber (HDR) bearings, so the HDR bearings have the characteristics of both common rubber bearings and damping measures and show good aseismic effect. In this paper, the time-history dynamic analysis method is used to study the seismic effects of HDR bearings on the aseismic behaviors of two-span simply supported beam bridge under Northridge earthquake by changing the damping characteristics of the bearings. It is found that, with increasing damping of the bearings, both the horizontal shear and the displacement of the HDR bearings

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18

Wang, Zhen Feng, and Ke Sheng Ma. "Character Analysis of Balance and Imbalance of Varying Rigidity of Rigid Pile Composite Foundation under Seismic Load." Advanced Materials Research 1065-1069 (December 2014): 19–22. http://dx.doi.org/10.4028/www.scientific.net/amr.1065-1069.19.

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Based on ABAQUS finite element analysis software simulation, the finite element model for dynamic analysis of rigid pile composite foundation and superstructure interaction system is established, which selects the two kinds of models, by simulating the soil dynamic constitutive model, selecting appropriate artificial boundary.The influence of rigid pile composite foundation on balance and imbalance of varying rigidity is analyzed under seismic loads. The result shows that the maximum bending moment and the horizontal displacement of the long pile is much greater than that of the short pile und

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19

Zhao, Nan, Kai Ma, Shao Xue Tang, Bin Lei Chen, and Ting Li. "Seismic Reaction Analysis on High-Rise Isolated Structure with Multi-Tower." Advanced Materials Research 217-218 (March 2011): 137–46. http://dx.doi.org/10.4028/www.scientific.net/amr.217-218.137.

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Structural reaction analysis under frequent earthquake and rare earthquake was carried out using time- history method. Every single-tower structure was chosen as an analysis modal, which can reflect real structural reaction. The results show that seismic response decreases obviously and story shear force and overturning moment are far less than that of aseismic structures. Horizontal reduction coefficient is lower under rare earthquake. Story drift is mainly centralized at isolator layer, which approaches zero on superstructure. The isolated structure shows whole translational motion. Reductio

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20

Rousset, Baptiste, Roland Bürgmann, and Michel Campillo. "Slow slip events in the roots of the San Andreas fault." Science Advances 5, no. 2 (2019): eaav3274. http://dx.doi.org/10.1126/sciadv.aav3274.

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Episodic tremor and accompanying slow slip are observed at the down-dip edge of subduction seismogenic zones. While tremors are the seismic signature of this phenomenon, they correspond to a small fraction of the moment released; thus, the associated fault slip can be quantified only by geodetic observations. On continental strike-slip faults, tremors have been observed in the roots of the Parkfield segment of the San Andreas fault. However, associated transient aseismic slip has never been detected. By making use of the timing of transient tremor activity and the dense Parkfield-area global p

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21

Erickson, Brittany A., Junle Jiang, Michael Barall, et al. "The Community Code Verification Exercise for Simulating Sequences of Earthquakes and Aseismic Slip (SEAS)." Seismological Research Letters 91, no. 2A (2020): 874–90. http://dx.doi.org/10.1785/0220190248.

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Abstract Numerical simulations of sequences of earthquakes and aseismic slip (SEAS) have made great progress over past decades to address important questions in earthquake physics. However, significant challenges in SEAS modeling remain in resolving multiscale interactions between earthquake nucleation, dynamic rupture, and aseismic slip, and understanding physical factors controlling observables such as seismicity and ground deformation. The increasing complexity of SEAS modeling calls for extensive efforts to verify codes and advance these simulations with rigor, reproducibility, and broaden

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22

Sparacino, Federica, Mimmo Palano, José Antonio Peláez, and José Fernández. "Geodetic Deformation versus Seismic Crustal Moment-Rates: Insights from the Ibero-Maghrebian Region." Remote Sensing 12, no. 6 (2020): 952. http://dx.doi.org/10.3390/rs12060952.

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Seismic and geodetic moment-rate comparisons can reveal regions with unexpected potential seismic hazards. We performed such a comparison for the Southeastern Iberia—Maghreb region. Located at the western Mediterranean border along the Eurasia–Nubia plate convergence, the region has been subject to a number of large earthquakes (M ≥ 6.5) in the last millennium. To this end, on the basis of available geological, tectonic, and seismological data, we divided the study area into twenty-five seismogenic source zones. Many of these seismogenic source zones, comprising the Western Betics, the Western

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23

Du, Juan, Xiao-Peng Lei, Di-Fan Ren, Zai-Cheng Wang, and Yang Zhang. "Dynamic Response of Pile-Raft Systems with Various Forms of Connection under Cyclic Condition." Shock and Vibration 2023 (November 3, 2023): 1–12. http://dx.doi.org/10.1155/2023/3775654.

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This study aimed to examine the aseismic performance of the pile-raft systems with various connection forms. The related shaking table test and numerical simulation were performed for in-depth investigation. The acceleration response spectra on the top of the soil layer and raft were obtained and plotted for contrastive analysis based on the model test at a reduced scale of 1 : 30 and finite element numerical simulation. Accordingly, the working mechanisms of the pile-raft systems in conventional connections with the embedment of the compressible blocks and cushion layers under cyclic loading

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24

Boudin, F., P. Bernard, G. Meneses, et al. "Slow slip events precursory to the 2014 Iquique Earthquake, revisited with long-base tilt and GPS records." Geophysical Journal International 228, no. 3 (2021): 2092–121. http://dx.doi.org/10.1093/gji/ggab425.

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SUMMARY The M= 8.1, 1 April 2014 Iquique earthquake, which broke part of the northern Chile seismic gap, was preceded by a strong foreshock sequence starting early January 2014. The reported analysis of the continuous records of the nearby GPS stations from the Integrated Plate Observatory Chile, North Chile array lead to contradictory results concerning the existence and location of slow slip events (SSEs) on the interplate contact. Resolving this controversy is an important issue, as although many SSEs are reported in subduction zones, only a few were found to be precursory to large earthqua

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Sasmi, Annisa Trisnia, Andri Dian Nugraha, Muzli Muzli, et al. "Hypocenter and Magnitude Analysis of Aftershocks of the 2018 Lombok, Indonesia, Earthquakes Using Local Seismographic Networks." Seismological Research Letters 91, no. 4 (2020): 2152–62. http://dx.doi.org/10.1785/0220190348.

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Abstract The island of Lombok in Indonesia is located between the Indo-Australian and Eurasian subduction trenches and the Flores back-arc thrust, making it vulnerable to earthquakes. On 29 July 2018, a significant earthquake Mw 6.4 shook this region and was followed by series of major earthquakes (Mw&gt;5.8) on 5, 9, and 19 August, which led to severe damage in the northern Lombok area. In this study, we attempt to reveal the possible cause of the sequences of the 2018 Lombok earthquakes based on aftershock monitoring data. Twenty stations were deployed to record earthquake waveform data

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26

Li, Qing Hua, and Shi Lang Xu. "Four Point Bending Experimental Investigation on Reinforced Ultra High Toughness Cementitious Composite Beams." Key Engineering Materials 400-402 (October 2008): 395–401. http://dx.doi.org/10.4028/www.scientific.net/kem.400-402.395.

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Ultra high toughness cementitious composite (abbreviated as UHTCC) shows significant pseudo strain hardening behavior and offers prominent tension strain ability of more than 3% when subjected to uniaxial tension load. The failure pattern of the UHTCC components exhibits multiple fine cracks with crack width lower than 100μm even corresponding to the ultimate tensile strain state. Four-point bending investigations of reinforced ultra high toughness cementitious composite (RUHTCC) members without web reinforcement have been carried out due to the excellent crack dispersion and strain energy abs

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27

Stein, Ross S., and Thomas C. Hanks. "M ≧ 6 earthquakes in southern California during the twentieth century: No evidence for a seismicity or moment deficit." Bulletin of the Seismological Society of America 88, no. 3 (1998): 635–52. http://dx.doi.org/10.1785/bssa0880030635.

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Abstract A broadly based report on seismic hazards in southern California (WGCEP, 1995) concluded that the predicted seismicity exceeds that observed since 1850; a subsequent independent analysis argued that infrequent huge (M &gt; 8) earthquakes are needed to explain the low rate of large earthquakes (Jackson, 1996). Frequency-magnitude relationships and earthquake reporting suggest that the 1903 to 1997 catalog we present here, with a b-value of 1.0 and a rate of M ≧ 6 shocks of 0.42 to 0.49 yr−1, is nearly complete. In contrast, the 1850 to 1994 catalog used by WGCEP is incomplete befor

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28

Jiang, Junle, Yehuda Bock, and Emilie Klein. "Coevolving early afterslip and aftershock signatures of a San Andreas fault rupture." Science Advances 7, no. 15 (2021): eabc1606. http://dx.doi.org/10.1126/sciadv.abc1606.

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Large earthquakes often lead to transient deformation and enhanced seismic activity, with their fastest evolution occurring at the early, ephemeral post-rupture period. Here, we investigate this elusive phase using geophysical observations from the 2004 moment magnitude 6.0 Parkfield, California, earthquake. We image continuously evolving afterslip, along with aftershocks, on the San Andreas fault over a minutes-to-days postseismic time span. Our results reveal a multistage scenario, including immediate onset of afterslip following tens-of-seconds-long coseismic shaking, short-lived slip rever

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Cauchie, L., O. Lengliné, and J. Schmittbuhl. "Seismic asperity size evolution during fluid injection: case study of the 1993 Soultz-sous-Forêts injection." Geophysical Journal International 221, no. 2 (2020): 968–80. http://dx.doi.org/10.1093/gji/ggaa051.

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SUMMARY The injection of fluid in the upper crust, notably for the development or exploitation of geothermal reservoirs, is often associated with the onset of induced seismicity. Although this process has been largely studied, it is not clear how the injected fluid influences the rupture size of the induced events. Here we re-investigate the induced earthquakes that occurred during an injection at Soultz-sous-Forêts, France in 1993 and studied the link between the injected fluid and the source properties of the numerous induced earthquakes. We take advantage that deep borehole accelerometers w

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30

Michel, Sylvain, Jean‐Philippe Avouac, Romain Jolivet, and Lifeng Wang. "Seismic and Aseismic Moment Budget and Implication for the Seismic Potential of the Parkfield Segment of the San Andreas Fault." Bulletin of the Seismological Society of America 108, no. 1 (2017): 19–38. http://dx.doi.org/10.1785/0120160290.

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31

Jeong, Seong Ju, Brian W. Stump, and Heather R. DeShon. "Stress Drop Variations of Induced Earthquakes near the Dallas–Fort Worth Airport, Texas." Seismic Record 2, no. 2 (2022): 68–77. http://dx.doi.org/10.1785/0320220003.

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Abstract We estimate stress drops for injection-induced earthquakes near the Dallas–Fort Worth Airport in the Fort Worth basin (FWB), Texas, to investigate source properties in response to fluid injection. The stress drops for the Airport sequence show three unique characteristics compared to those estimated for other earthquake sequences in the FWB: (1) stress drops have lower mean and median values; (2) stress drops increase with moment magnitude; and (3) stress drops increase in size over the first 1.5 km in radial distance from the injection point. The low stress drop Airport events occurr

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32

Louie, John N., Clarence R. Allen, David C. Johnson, Paul C. Haase, and Stephen N. Cohn. "Fault slip in southern California." Bulletin of the Seismological Society of America 75, no. 3 (1985): 811–33. http://dx.doi.org/10.1785/bssa0750030811.

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Abstract Measurements of slip on major faults in southern California have been performed over the past 18 yr using principally theodolite alignment arrays and tautwire extensometers. They provide geodetic control within a few hundred meters of the fault traces, which complements measurements made by other techniques at larger distances. Approximately constant slip rates of from 0.5 to 5 mm/yr over periods of several years have been found for the southwestern portion of the Garlock fault, the Banning and San Andreas faults in the Coachella Valley, the Coyote Creek fault, the Superstition Hills

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Orecchio, Barbara, Silvia Scolaro, Josep Batlló, et al. "New Results for the 1968 Belice, South Italy, Seismic Sequence: Solving the Long-Lasting Ambiguity on Causative Source." Seismological Research Letters 92, no. 4 (2021): 2364–81. http://dx.doi.org/10.1785/0220200277.

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Abstract We present the first estimates of moment tensor solutions and probabilistic nonlinear hypocenter locations for the 1968 Belice earthquake sequence, which is the most relevant seismic activity occurred in western Sicily in historical times. This seismic phase, including six earthquakes with magnitude between 5 and 6.4, produced severe damages and fatalities in a sector of the Nubia–Eurasia plate margin, previously considered aseismic. Poorly constrained and often controversial hypocenter locations and focal mechanism solutions available from the literature have led to a long-lasting am

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34

Luo, Bin, Benchun Duan, and Dunyu Liu. "3D Finite-Element Modeling of Dynamic Rupture and Aseismic Slip over Earthquake Cycles on Geometrically Complex Faults." Bulletin of the Seismological Society of America 110, no. 6 (2020): 2619–37. http://dx.doi.org/10.1785/0120200047.

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ABSTRACT We develop a new dynamic earthquake simulator to numerically simulate both spontaneous rupture and aseismic slip over earthquake cycles on geometrically complex fault systems governed by rate- and state-dependent friction. The method is based on the dynamic finite-element method (FEM) EQdyna, which is directly used in the simulator for modeling 3D spontaneous rupture. We apply an adaptive dynamic relaxation technique and a variable time stepping scheme to EQdyna to model the quasi-static processes of an earthquake cycle, including the postseismic, interseismic, and nucleation processe

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35

Kasimzade, A. A., A. Dushimimana, S. Tuhta, G. Atmaca, F. Günday, and O. Abrar. "A Comparative Study on Effectiveness of Using Horasan Mortar as a Pure Friction Sliding Interface Material." European Journal of Engineering Research and Science 4, no. 2 (2019): 64–69. http://dx.doi.org/10.24018/ejers.2019.4.2.1166.

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In this study, the possibility to use Horasan mortar as a sliding interface material for pure friction aseismic isolation system is investigated. Both experimental and numerical studies are conducted to examine the effectiveness of using this material in structural isolation systems of buildings with no overturning moment, as it has shown some attractive experiences in time based on the existing related literature. Responses of four storey lightweight building are numerically investigated by finite element modelling in MATLAB; whereas the University Consortium on Instructional Shake Table (UCI

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Kasimzade, A. A., A. Dushimimana, S. Tuhta, G. Atmaca, F. Günday, and O. Abrar. "A Comparative Study on Effectiveness of Using Horasan Mortar as a Pure Friction Sliding Interface Material." European Journal of Engineering and Technology Research 4, no. 2 (2019): 64–69. http://dx.doi.org/10.24018/ejeng.2019.4.2.1166.

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In this study, the possibility to use Horasan mortar as a sliding interface material for pure friction aseismic isolation system is investigated. Both experimental and numerical studies are conducted to examine the effectiveness of using this material in structural isolation systems of buildings with no overturning moment, as it has shown some attractive experiences in time based on the existing related literature. Responses of four storey lightweight building are numerically investigated by finite element modelling in MATLAB; whereas the University Consortium on Instructional Shake Table (UCI

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37

Kaviris, George, Panagiotis Elias, Vasilis Kapetanidis, et al. "The Western Gulf of Corinth (Greece) 2020–2021 Seismic Crisis and Cascading Events: First Results from the Corinth Rift Laboratory Network." Seismic Record 1, no. 2 (2021): 85–95. http://dx.doi.org/10.1785/0320210021.

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Abstract We investigate a seismic crisis that occurred in the western Gulf of Corinth (Greece) between December 2020 and February 2021. This area is the main focus of the Corinth Rift Laboratory (CRL) network, and has been closely monitored with local seismological and geodetic networks for 20 yr. The 2020–2021 seismic crisis evolved in three stages: It started with an Mw 4.6 event near the northern shore of the Gulf, opposite of Aigion, then migrated eastward toward Trizonia Island after an Mw 5.0 event, and eventually culminated with an Mw 5.3 event, ∼3 km northeast of the Psathopyrgos fault

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Caputa, Alicja, Adam Talaga, and Łukasz Rudziński. "Analysis of post-blasting source mechanisms of mining-induced seismic events in Rudna copper mine, Poland." Contemporary Trends in Geoscience 4, no. 1 (2015): 26–38. http://dx.doi.org/10.1515/ctg-2015-0003.

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Abstract The exploitation of georesources by underground mining can be responsible for seismic activity in areas considered aseismic. Since strong seismic events are connected with rockburst hazard, it is a continuous requirement to reduce seismic risk. One of the most effective methods to do so is blasting in potentially hazardous mining panels. In this way, small to moderate tremors are provoked and stress accumulation is substantially reduced. In this paper we present an analysis of post-blasting events using Full Moment Tensor (MT) inversion at the Rudna mine, Poland, underground seismic n

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Su, Jizhi, Boquan Liu, Guohua Xing, Yudong Ma, and Jiao Huang. "Influence of Beam-to-Column Linear Stiffness Ratio on Failure Mechanism of Reinforced Concrete Moment-Resisting Frame Structures." Advances in Civil Engineering 2020 (January 10, 2020): 1–24. http://dx.doi.org/10.1155/2020/9216798.

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The design philosophy of a strong-column weak-beam (SCWB), commonly used in seismic design codes for reinforced concrete (RC) moment-resisting frame structures, permits plastic deformation in beams while keeping columns elastic. SCWB frames are designed according to beam-to-column flexural capacity ratio requirements in order to ensure the beam-hinge mechanism during large earthquakes and without considering the influence of the beam-to-column stiffness ratio on the failure modes of global structures. The beam-to-column linear stiffness ratio is a comprehensive indicator of flexural stiffness,

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Brengman, Clayton M. J., William D. Barnhart, Emma H. Mankin, and Cody N. Miller. "Earthquake‐Scaling Relationships from Geodetically Derived Slip Distributions." Bulletin of the Seismological Society of America 109, no. 5 (2019): 1701–15. http://dx.doi.org/10.1785/0120190048.

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Abstract Empirical earthquake scaling relationships describe expected relationships between moment magnitude and various spatial descriptors of the earthquake rupture (along‐strike length, down‐dip width, rupture area, and peak and mean slip). These scaling relationships play important roles in many seismological, geological, and hazards‐assessment applications. Historically, scaling relationships were defined from various seismological criteria, such as teleseismic finite‐fault models or aftershock distributions. The proliferation of earthquake slip distributions from geodetic observations pr

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Gómez Alba, Sebastián, Carlos A. Vargas, and Arno Zang. "Evidencing the relationship between injected volume of water and maximum expected magnitude during the Puerto Gaitán (Colombia) earthquake sequence from 2013 to 2015." Geophysical Journal International 220, no. 1 (2019): 335–44. http://dx.doi.org/10.1093/gji/ggz433.

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ABSTRACT Since 2013 to date more than 1000 seismic events have been recorded by the Servicio Geologico Colombiano (Colombian Geological Survey, SGC) in the municipality of Puerto Gaitán (Colombia). A total of 14 earthquakes are moment magnitude Mw > 4.0. The largest event ever recorded in the area occurred in November 2015 with Mw 4.8. It seems like the case of Puerto Gaitán is associated with the deep injection of coproduced wastewater from oil and gas extraction. The data presented in this work suggests a close relationship in space and time between injection operations and seismicity. An

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He, Yang, Zhen Tian, Lina Su, Hongwu Feng, Wenhua Yan, and Yongqi Zhang. "Coseismic Slip and Downdip Afterslip Associated with the 2021 Maduo Earthquake Revealed by Sentinel-1 A/B Data." Applied Sciences 14, no. 15 (2024): 6771. http://dx.doi.org/10.3390/app14156771.

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On 22 May 2021, an earthquake (98.3 °E and 34.59 °N) struck Maduo town in Qinghai province, occurring along a relatively obscure secondary fault within the block. We utilized 105 archived Sentinel-1A/B acquisitions to investigate the coseismic deformation and the evolution of postseismic displacements in both the temporal and spatial domains, as well as the associated dynamic mechanisms of the 2021 Maduo earthquake. The interference fringes and coseismic deformation revealed that the primary feature of this event was the rupture along a left-lateral strike-slip fault. The released seismic mome

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He, Zhongqiu, Ting Chen, Mingce Wang, and Yanchong Li. "Multi-Segment Rupture Model of the 2016 Kumamoto Earthquake Revealed by InSAR and GPS Data." Remote Sensing 12, no. 22 (2020): 3721. http://dx.doi.org/10.3390/rs12223721.

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The 2016 Kumamoto earthquake, including two large (Mw ≥ 6.0) foreshocks and an Mw 7.0 mainshock, occurred in the Hinagu and Futagawa fault zones in the middle of Kyushu island, Japan. Here, we obtain the complex coseismic deformation field associated with this earthquake from Advanced Land Observation Satellite-2 (ALOS-2) and Sentinel-1A Interferometric Synthetic Aperture Radar (InSAR) data. These InSAR data, in combination with available Global Positioning System (GPS) data, are then used to determine an optimal four-segment fault geometry with the jRi method, which considers both data misfit

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Mesimeri, Maria, Athanassios Ganas, and Kristine L. Pankow. "Multisegment ruptures and Vp/Vs variations during the 2020–2021 seismic crisis in western Corinth Gulf, Greece." Geophysical Journal International 230, no. 1 (2022): 334–48. http://dx.doi.org/10.1093/gji/ggac081.

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SUMMARY On 2020 December 23, a seismic crisis initiated in the western Corinth Gulf offshore Marathias, lasted several months, and generated thousands of small magnitude earthquakes. The Gulf of Corinth is well known for earthquake swarm occurrence and short-lived burst-like earthquake sequences, mostly triggered by crustal fluids. Here, we perform a detailed seismic analysis aiming to identifying earthquake clusters within the seismic crisis and define their spatial and temporal characteristics. Thanks to the dense seismic station coverage in the area, operated by the Hellenic Unified Seismol

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Mazzotti, Stéphane, Hervé Jomard, and Frédéric Masson. "Processes and deformation rates generating seismicity in metropolitan France and conterminous Western Europe." BSGF - Earth Sciences Bulletin 191 (2020): 19. http://dx.doi.org/10.1051/bsgf/2020019.

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Most of metropolitan France and conterminous Western Europe is currently located within the Eurasia intraplate domain, far from major plate boundaries (the Atlantic ridge and Nubia – Eurasia convergence zone). As in other intraplate regions, present-day deformation and seismicity rates are very slow, resulting in limited data and strong uncertainties on the ongoing seismotectonics and seismic hazards. In the last two decades, new geological, seismological and geodetic data and research have brought to light unexpected deformation patterns in metropolitan France, such as orogen-normal extension

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Valenzuela-Malebrán, Carla, Simone Cesca, Sergio Ruiz, et al. "Seismicity clusters in Central Chile: investigating the role of repeating earthquakes and swarms in a subduction region." Geophysical Journal International 224, no. 3 (2020): 2028–43. http://dx.doi.org/10.1093/gji/ggaa562.

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SUMMARY Seismicity along subduction interfaces is usually dominated by large main-shock–aftershock sequences indicative of a continuum distribution of highly coupled large asperities. In the past decades, however, the increased resolution of seismic catalogues at some subduction zone seems to indicate instead a more complex rheological segmentation of the interface. Large and megathrust earthquake ruptures seem interspersed among regions of low seismic coupling and less stress buildup. In this weaker zone, the strain is primarily released via a combination of moderate-size swarm-like seismicit

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Sáez, Alexis, François Passelègue, and Brice Lecampion. "Maximum size and magnitude of injection-induced slow slip events." Science Advances 11, no. 19 (2025). https://doi.org/10.1126/sciadv.adq0662.

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Fluid injections can induce aseismic slip, resulting in stress changes that may propagate faster than pore pressure diffusion, potentially triggering seismicity at substantial distances from injection wells. Constraining the maximum extent of these aseismic ruptures is, thus, important for better delineating the influence zone of injections concerning their seismic hazard. Here, we derive a scaling relation based on rupture physics for the maximum size of aseismic ruptures, accounting for fluid injections with arbitrary flow rate histories. Moreover, on the basis of mounting evidence that the

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Chlieh, M., C. Beauval, H. Yepes, J. Marinière, M. Saillard, and L. Audin. "Seismic and Aseismic Cycle of the Ecuador–Colombia Subduction Zone." Frontiers in Earth Science 9 (September 22, 2021). http://dx.doi.org/10.3389/feart.2021.701720.

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The Colombia–Ecuador subduction zone is an exceptional natural laboratory to study the seismic cycle associated with large and great subduction earthquakes. Since the great 1906 Mw = 8.6 Colombia–Ecuador earthquake, four large Mw &gt; 7.5 megathrust earthquakes occurred within the 1906 rupture area, releasing altogether a cumulative seismic moment of ∼35% of the 1906 seismic moment. We take advantage of newly released seismic catalogs and global positioning system (GPS) data at the scale of the Colombia–Ecuador subduction zone to balance the moment deficit that is building up on the megath

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Wang, Taiyi A., and Eric M. Dunham. "Hindcasting injection-induced aseismic slip and microseismicity at the Cooper Basin Enhanced Geothermal Systems Project." Scientific Reports 12, no. 1 (2022). http://dx.doi.org/10.1038/s41598-022-23812-7.

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AbstractThere is a growing recognition that subsurface fluid injection can produce not only earthquakes, but also aseismic slip on faults. A major challenge in understanding interactions between injection-related aseismic and seismic slip on faults is identifying aseismic slip on the field scale, given that most monitored fields are only equipped with seismic arrays. We present a modeling workflow for evaluating the possibility of aseismic slip, given observational constraints on the spatial-temporal distribution of microseismicity, injection rate, and wellhead pressure. Our numerical model si

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Wynants-Morel, Nicolas, Louis De Barros, and Frédéric Cappa. "Sensitivity of the Seismic Moment Released During Fluid Injection to Fault Hydromechanical Properties and Background Stress." Frontiers in Earth Science 9 (April 13, 2021). http://dx.doi.org/10.3389/feart.2021.638723.

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Fluid pressure perturbations in subsurface rocks affect the fault stability and can induce both seismicity and aseismic slip. Nonetheless, observations show that the partitioning between aseismic and seismic fault slip during fluid injection may strongly vary among reservoirs. The processes and the main fault properties controlling this partitioning are poorly constrained. Here we examine, through 3D hydromechanical modeling, the influence of fault physical properties on the seismic and aseismic response of a permeable fault governed by a slip-weakening friction law. We perform a series of hig

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