Results 11 to 20 of about 3,999 (200)

Cascadia megathrust rupture model

open access: yes, 2020
Data products of Cascadia megathrust rupture ...
duo li
openaire   +2 more sources

Pemodelan Segmentasi Mentawai-Pagai: Studi Kasus Gempa Megathrust di Indonesia [PDF]

open access: yesJurnal Geosains dan Remote Sensing, 2020
Gempa yang terjadi pada tanggal 25 Oktober di Pulau Mentawai merupakan gempa megathrust segmentasi Mentawai-Pagai. Segmentasi megathrus ini memiliki sejarah gempa yang terjadi sebelumnya yaitu pada tahun 1797 dan 1833.
Cahya Damayanti   +4 more
doaj   +2 more sources

Seismic and aseismic slip on the Central Peru megathrust [PDF]

open access: yesNature, 2010
Slip on a subduction megathrust can be seismic or aseismic, with the two modes of slip complementing each other in time and space to accommodate the long-term plate motions. Although slip is almost purely aseismic at depths greater than about 40 km, heterogeneous surface strain suggests that both modes of slip occur at shallower depths, with aseismic ...
Perfettini, Hugo   +10 more
openaire   +5 more sources

Megathrust Shear Modulated by Albite Metasomatism in Subduction Mélanges [PDF]

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Aseismic megathrust slip downdip of the seismogenic zone is accommodated by either steady creep or episodic slow slip events (SSEs). However, the geological conditions defining the rheology of megathrust slip remain elusive.
Kohtaro Ujiie   +8 more
doaj   +2 more sources

Offshore Landward Motion Shortly After a Subduction Earthquake Implies Rapid Relocking of the Shallow Megathrust [PDF]

open access: yesGeophysical Research Letters, 2023
Geodetic observations after large subduction earthquakes reflect multiple postseismic processes, including megathrust relocking. The timing of relocking and the observational constraints on it are unclear.
Mario D’Acquisto, Rob Govers
doaj   +3 more sources

Rare Synchronization Among Recurring Earthquakes

open access: yesGeophysical Research Letters
Earthquakes are notoriously irregular, yet occasionally neighboring faults rupture in close succession, repeatedly, as if synchronized. Over successive cycles, differences in recurrence intervals, overall irregularity and external stressors should all ...
Kélian Dascher‐Cousineau   +4 more
doaj   +2 more sources

Structural Heterogeneity Shapes Segmentation of Megathrust Earthquakes and Volcanism in Central America

open access: yesGeophysical Research Letters
The mechanisms underlying the patchy distribution of forearc megathrust earthquakes and arc volcanoes in subduction zones remain poorly understood.
Junhao Zhang   +3 more
doaj   +2 more sources

Costa Rica megathrust reflection

open access: yes, 2020
Geometry, depth beneath seafloor, and amplitude information for the megathrust reflection of the Costa Rica subduction ...
James Kirkpatrick
core   +8 more sources

Impact of Upper‐Plate Faulting on Megathrust Foreshocks: Insights From the 2014 Iquique Earthquake [PDF]

open access: yesGeophysical Research Letters
The role of upper‐plate faulting in the seismic cycle of large megathrust earthquakes remains poorly understood. We use quasi‐dynamic numerical simulations of seismic cycles to analyze the interaction between crustal faulting and the foreshock sequence ...
J. Julve   +3 more
doaj   +2 more sources

Cascading rupture of a megathrust

open access: yesScience Advances, 2022
Understanding variability in the size and location of large earthquakes along subduction margins is crucial for evaluating seismic and tsunami hazards. We present a coseismic slip model for the 2021 M 8.2 Chignik earthquake and investigate the relationship of this earthquake to previous major events in the Alaska ...
Julie L. Elliott   +5 more
openaire   +2 more sources

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