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Seismotectonics and Crustal Structure in the Southern Dominican Republic Offshore Margin: Implications on the Tsunami Potential

open access: yesGeochemistry, Geophysics, Geosystems
Many coastal areas of the southern Dominican Republic experience considerable population pressure accompanied by important economic activity. The southern offshore margin is characterized by significant seismicity and active geological processes. Because
J. L. Granja‐Bruña   +10 more
doaj   +1 more source

Megathrusts exhumed [PDF]

open access: yesNature Geoscience, 2021
openaire   +1 more source

Do Coupled Megathrusts Rupture?

open access: yes
Megathrust earthquakes are among the most destructive and least predictable natural hazards. Kinematic geodetic coupling models, which identify regions of the plate interface where interseismic strain accumulates, are essential for seismic and tsunami hazard assessment.
Bar Oryan, Alice-Agnes Gabriel
openaire   +1 more source

Unusually large tsunamis frequent a currently creeping part of the Aleutian megathrust

open access: yesGeophysical Research Letters, 2016
Current models used to assess earthquake and tsunami hazards are inadequate where creep dominates a subduction megathrust. Here we report geological evidence for large tsunamis, occurring on average every 300–340 years, near the source areas of the 1946 ...
Robert C. Witter   +9 more
doaj   +1 more source

An unexplained tsunami: Was there megathrust slip during the 2020 Mw7.6 Sand Point, Alaska, earthquake?

open access: yesSeismica
On October 19, 2020, the Mw7.6 Sand Point earthquake struck south of the Shumagin Islands in Alaska. Moment tensors indicate the earthquake was primarily strike-slip, yet the event produced an enigmatic tsunami that was larger and more widespread than ...
Sean Santellanes   +6 more
doaj   +1 more source

Azimuthal Seismic Anisotropy in the Upper Crust of the Japanese Islands Induced by the 2011 Tohoku‐Oki Megathrust Earthquake

open access: yesGeophysical Research Letters, 2018
We investigated VP/VS changes in the upper crust of the Japanese islands after the 2011 MW9.0 Tohoku‐Oki megathrust earthquake. Abrupt VP/VS changes with azimuth‐dependent variations were observed after the megathrust earthquake. The VP/VS changes ranged
Ilgoo Kim, Tae‐Kyung Hong
doaj   +1 more source

Seismic‐afterslip characterization of the 2010 MW 8.8 Maule, Chile, earthquake based on moment tensor inversion

open access: yesGeophysical Research Letters, 2012
On February 27th 2010, a MW8.8 earthquake struck the coast of south‐central Chile, rupturing ∼500 km along the subduction interface. Here we estimate the amount of seismically‐released afterslip (SRA) and the mechanisms underlying the distribution of ...
Hans Agurto   +3 more
doaj   +1 more source

On Dislocation Modeling of Megathrust Tsunami Sources

open access: yesJournal of Geophysical Research: Solid Earth
AbstractModeling tsunamis due to subduction earthquakes for scientific research and hazard assessment requires accurate quantification of coseismic seafloor deformation. Although the widely used analytical model of shear dislocation in a uniform elastic half space can accommodate complex fault geometry and slip distribution, it fails to capture the ...
Yijie Zhu   +4 more
openaire   +1 more source

Bibliometric Mapping of Public Knowledge on Megathrust Earthquake Disaster Mitigation

open access: yes
Public knowledge of megathrust earthquake mitigation is essential for strengthening disaster preparedness and supporting disaster risk reduction. Although earthquake mitigation research has continued to expand, bibliometric evidence positioning public ...
Retna Pebrianti, Iip Permana
core   +1 more source

RV Sonne Cruise 200, 11 Jan-11 Mar 2009. Jakarta - Jakarta [PDF]

open access: yes, 2008
All plate boundaries are divided into segments - pieces of fault that are distinct from oneanother, either separated by gaps or with different orientations.
McNeil, L.C.   +5 more
core  

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