Results 21 to 30 of about 3,999 (200)

Unraveling Megathrust Seismicity [PDF]

Eos, Transactions American Geophysical Union, 2013
The majority of global seismicity originates at subduction zones, either within the converging plates or along the plate interface. In particular, events with Mw ≥ 8.0 usually occur at the subduction megathrust, which is the frictional interface between subducting and overriding plates.
FUNICIELLO, FRANCESCA, Corbi F, van Dinther Y, Heuret A.   +3 more
openaire   +3 more sources

Megathrust locking encoded in subduction landscapes. [PDF]

Sci Adv
Locked areas of subduction megathrusts are increasingly found to coincide with landscape features sculpted over hundreds of thousand years, yet the mechanisms that underlie such correlations remain elusive. We show that interseismic locking gradients induce increments of irreversible strain across the overriding plate manifested predominantly as ...
Oryan B, Olive JA, Jolivet R, Malatesta LC, Gailleton B, Bruhat L.   +5 more
europepmc   +6 more sources

Modelling the seismic potential of the Indo-Burman megathrust [PDF]

Scientific Reports, 2021
AbstractThe Indo-Burman arc is the boundary between the India and Burma plates, north of the Sumatra–Andaman subduction zone. The existence of active subduction in the Indo-Burman arc is a debatable issue because the Indian plate converges very obliquely beneath the Burma plate.
Inessa Vorobieva, Alexander Gorshkov, Prantik Mandal   +2 more
openaire   +3 more sources

Mega-earthquakes rupture flat megathrusts [PDF]

Science, 2016
Mega-earthquakes go the flat way Megathrust faults in subduction zones cause large and damaging earthquakes. Bletery et al. argue that certain geometric features of the subduction zones relate to earthquake size. The key parameter is the curvature of the megathrust.
Bletery, Q., Thomas, A., Rempel, A., Karlstrom, L., Sladen, A., de Barros, L.   +5 more
openaire   +3 more sources

Earthquake Fingerprint of an Incipient Subduction of a Bathymetric High

Geophysical Research Letters, 2022
The resistance of bathymetric highs to subduction results in large‐scale morphological distortions of the outer‐rise, trench, and fore‐arc regions. Once subducted, bathymetric highs induce frictional segmentation along the plate interface that may result
Luigi Passarelli, Simone Cesca, Nima Nooshiri, Sigurjón Jónsson   +3 more
doaj   +1 more source

Nankai Forearc Structural and Seismogenic Segmentation Caused by a Magmatic Intrusion off the Kii Peninsula

Geochemistry, Geophysics, Geosystems, 2022
The causes for forearc basin and megathrust rupture zone segmentation are controversial. The Nankai forearc, Japan, is separated into five domains based on topography: Enshu, Kumano, Muroto, Tosa, and Hyuga.
G. Kimura, Y. Nakamura, K. Shiraishi, G. Fujie, S. Kodaira, T. Tsuji, R. Fukuchi, A. Yamaguchi   +7 more
doaj   +1 more source

The roles of quartz and water in controlling unstable slip in phyllosilicate-rich megathrust fault gouges [PDF]

, 2014
A recent microphysical model for the steady-state frictional behaviour of wet illite/quartz gouges in subduction megathrust settings predicts that velocity-weakening in the seismogenic zone results from a competition between shear-induced dilatation and ...
Christopher J Spiers, NWO-Toptalent: Rheological behaviour and slip stability of megathrust earthquake faults (Toptalent grant), Saffer, Demian M., den Hartog, Sabine A.M., Spiers, Christopher J., Sabine AM den Hartog, Demian M Saffer, Experimental rock deformation, den Hartog, Sabine A. M.   +8 more
core   +2 more sources

Coulomb stress change on inland faults during megathrust earthquake cycle in southwest Japan

Earth, Planets and Space, 2020
In the subduction zone, megathrust earthquakes may modulate the shallow crustal seismicity in the overriding plate. Historical documents indicate the frequent occurrence of large shallow crustal earthquakes in the overriding continental plate 50 years ...
Tsukasa Mitogawa, Takuya Nishimura
doaj   +1 more source

Determination of tsunami run-up and golden time in the megathrust subduction zone of the sunda strait segment [PDF]

E3S Web of Conferences, 2021
The Indonesian Disaster Data and Information Management Database state that the tsunami in the Megathrust Subduction Zone of the Sunda Strait Segment is a disaster threat with high impact and loss of life every time it occurs.
Sarikanti Ponangsera Iko, Kurniadi Anwar, Ayu Puspitosari Deffi, Hartono Dedy   +3 more
doaj   +1 more source

Feedback between megathrust earthquake cycle and plate convergence. [PDF]

Sci Rep, 2023
: Over million years, convergence between the Nazca and South America tectonic plates results in Andean orogeny. Over decades/centuries, it fuels the earthquake cycle of the Andean megathrust.
Martin de Blas J, Iaffaldano G, Tassara A, Melnick D.   +3 more
europepmc   +2 more sources