Results 11 to 20 of about 22,222 (295)

The SCEC/USGS Dynamic Earthquake Rupture Code Verification Exercise [PDF]

Seismological Research Letters, 2009
Numerical simulations of earthquake rupture dynamics are now common, yet it has been difficult to test the validity of thesesimulations because there have been few field observations and no analytic solutions with which to compare the results. This paper
Aagaard, B. T., Ampuero, J. P., Archuleta, R., Barall, M., Bhat, H., Cruz-Atienza, V., Dalguer, L., Dawson, P., Day, S., Duan, B., Dunham, E., Ely, G., Harris, R. A., Kaneko, Y., Kase, Y., Lapusta, N., Liu, Y., Ma, S., Oglesby, D., Olsen, K., Pitarka, A., Song, S., Templeton, E.   +22 more
core   +4 more sources

Role of Weak Materials in Earthquake Rupture Dynamics. [PDF]

Sci Rep, 2019
AbstractWeak materials in seismic slip zones are important in studies of earthquake mechanics. For instance, the exceptionally large slip during the 2011 Tohoku-Oki earthquake has been attributed to the presence of smectite in the fault zone. However, weak fault rocks cannot accumulate large amounts of elastic strain, which is thought to counter their ...
Hirono T, Tsuda K, Kaneki S.
europepmc   +4 more sources

Uncertainty quantification of dynamic earthquake rupture simulations [PDF]

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2021
We present a tutorial demonstration using a surrogate-model based uncertainty quantification (UQ) approach to study dynamic earthquake rupture on a rough fault surface. The UQ approach performs model calibration where we choose simulation points, fit and validate an approximate surrogate model or emulator, and then examine the input space to see which ...
Eric G. Daub, Hamid Arabnejad, Imran Mahmood, Derek Groen   +3 more
openaire   +4 more sources

The Dynamics of Elongated Earthquake Ruptures [PDF]

Journal of Geophysical Research: Solid Earth, 2019
AbstractThe largest earthquakes propagate laterally after saturating the fault's seismogenic width and reach large length‐to‐width ratiosL/W. Smaller earthquakes can also develop elongated ruptures due to confinement by heterogeneities of initial stresses or material properties. The energetics of such elongated ruptures is radically different from that
Ampuero, Jean-Paul, Weng, Huihui
openaire   +5 more sources

Dynamic earthquake rupture in the lower crust [PDF]

Science Advances, 2019
A lower crustal earthquake is initiated by dynamic rupturing with fragmentation of wall rock that precedes frictional melting.
Petley-Ragan, Arianne, Ben-Zion, Yehuda, Austrheim, Håkon, Ildefonse, Benoit, Renard, François, Jamtveit, Bjørn   +5 more
openaire   +6 more sources

Landers 1992 "reloaded": Integrative dynamic earthquake rupture modeling [PDF]

Journal of Geophysical Research: Solid Earth, 2018
AbstractThe 1992 Mw 7.3 Landers earthquake is perhaps one of the best studied seismic events. However, many aspects of the dynamics of the rupture process are still puzzling, for example, the rupture transfer between fault segments. We present 3‐D spontaneous dynamic rupture simulations, incorporating the interplay of fault geometry, topography, 3‐D ...
Wollherr, Stephanie, Gabriel, Alice‐Agnes, Mai, P. Martin   +2 more
openaire   +4 more sources

A window into the complexity of the dynamic rupture of the 2011 Mw 9 Tohoku-Oki earthquake [PDF]

, 2011
The 2011 Mw 9 Tohoku-Oki earthquake, recorded by over 1000 near-field stations and multiple large-aperture arrays, is by far the best recorded earthquake in the history of seismology and provides unique opportunities to address fundamental issues in ...
Ampuero, Jean-Paul, Inbal, Asaf, Meng, Lingsen   +2 more
core   +1 more source

Nonlinear thermoporoelastic effects on dynamic earthquake rupture [PDF]

Journal of Geophysical Research: Solid Earth, 2006
In this study we theoretically examine thermohydraulic effects on dynamic earthquake rupture. We first derive the system of governing equations assuming a thermoporoelastic medium and then conduct numerical calculations based on these equations. Nonlinear feedback between changes in temperature, fluid pressure, and fault slip are shown to play an ...
Takehito Suzuki, Teruo Yamashita
openaire   +1 more source

Kinematic Slip Evolution During the 2022 Ms 6.8 Luding, China, Earthquake: Compatible With the Preseismic Locked Patch

Geophysical Research Letters, 2023
The September 2022 Ms 6.8 Luding earthquake broke more than 230 years of seismic calm on the Moxi fault, providing a unique opportunity to understand its seismogenic environment, rupture dynamics, and seismic hazard.
Rumeng Guo, Luning Li, Wenting Zhang, Yijun Zhang, Xiongwei Tang, Kun Dai, Yu Li, Lupeng Zhang, Jingqi Wang   +8 more
doaj   +1 more source

Surface rupture investigation of the 2022 Menyuan MS 6.9 Earthquake, Qinghai, China: Implications for the fault behavior of the Lenglongling fault and regional intense earthquake risk

Dizhi lixue xuebao, 2022
The MS 6.9 Menyuan earthquake on January 8, 2022 occurred in the Qilian Mountain fault block in the northeastern margin of the Tibetan Plateau. The instrumental epicenter is located in the Lenglongling fault zone in the west section of the Haiyuan active
HAN Shuai, WU Zhonghai, GAO Yang, LU Haifeng   +3 more
doaj   +1 more source