Results 31 to 40 of about 1,202,006 (199)

Temporal change in seismic velocity associated with an offshore M W 5.9 Off-Mie earthquake in the Nankai subduction zone from ambient noise cross-correlation

open access: yesProgress in Earth and Planetary Science, 2018
The Nankai subduction zone off the Kii Peninsula, Japan, has a large potential to generate megathrust earthquakes in the near future. To investigate the temporal variation of stress or strain in the Nankai subduction zone, we estimated the temporal ...
Tatsunori Ikeda, Takeshi Tsuji
doaj   +1 more source

Thermal effects of hydrothermal circulation and seamount subduction: Temperatures in the Nankai Trough Seismogenic Zone Experiment transect, Japan [PDF]

open access: yes
We examine the thermal effects of seamount subduction. Seamount subduction may cause transient changes in oceanic crust hydrogeology and plate boundary fault position. Prior to subduction, seamounts provide high‐permeability pathways between the basaltic
Spinelli, G. A., Harris, R. N.
core   +6 more sources

Crustal resistivity structure around the Nankai subduction zone

open access: yesBUTSURI-TANSA(Geophysical Exploration), 2005
The forearc crust along the Nankai Trough is characterized as an accretionary prism. The unconsolidated sediments on the subducting Philippine Sea plate are underplated to the southwest Japan arc, so that large amount of fluid is supplied to the accretionary prism.
Kimura, Toshinori   +7 more
openaire   +2 more sources

Sporadic low-velocity volumes spatially correlate with shallow very low frequency earthquake clusters

open access: yesNature Communications, 2017
In the Nankai subduction zone a low-velocity zone (LVZ) has been detected. Here, the authors present shear wave velocity profiles to show that low frequency earthquakes correlate with the distribution of the LVZ in the Nankai subduction zone.
Takashi Tonegawa   +5 more
doaj   +1 more source

Properties of the Subduction System in Mexico [PDF]

open access: yes, 2011
This thesis presents seismic imaging results of the structure of the Mexican subduction zone using receiver function (RF) based on teleseismic P-to-S converted waves, in order to gain insight into the physical and chemical factors associated with ...
Kim, YoungHee
core   +1 more source

Tidal sensitivity of tectonic tremors in Nankai and Cascadia subduction zones [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 2015
AbstractTectonic tremors in subduction zones, which result from slip at the deep plate interface, are known to exhibit a 12.4 h periodicity in their activity, due to tidal influence. Because tidal stress can be calculated quantitatively, the response of the plate interface can yield quantitative information about its frictional property.
Suguru Yabe   +3 more
openaire   +1 more source

(I) A Coupled Geochemical and Geodynamical Approach to Subduction Zone Modeling and (II) Development of Color in Greenish Quartz [PDF]

open access: yes, 2008
(I) We couple a petrological model with a 2D thermal and variable viscosity flow model to describe and compare fundamental processes occurring within subduction zones.
Hebert, Laura Baker
core   +1 more source

Punctuated growth of an accretionary prism and the onset of a seismogenic megathrust in the Nankai Trough

open access: yesProgress in Earth and Planetary Science, 2018
Ocean drilling in the Nankai Trough forearc suggests a new scenario for the evolution of the Nankai subduction zone. Continuous subduction since the Late Cretaceous has been a common tectonic scenario, although the plate subduction was transferred from ...
Gaku Kimura, Hiroaki Koge, Takeshi Tsuji
doaj   +1 more source

Bridging the gap between low-frequency and very-low-frequency earthquakes

open access: yesEarth, Planets and Space, 2020
Slow earthquakes that are observed in the > 1 Hz frequency band are called tectonic tremor or low-frequency earthquakes (LFEs) and those in the 0.01–0.10 Hz band are called very-low-frequency earthquakes (VLFEs).
Koki Masuda   +3 more
doaj   +1 more source

Slab pull, slab weakening, and their relation to deep intra-slab seismicity [PDF]

open access: yes, 2005
Subduction zone seismicity is highly variable. Great earthquakes occur at few subduction zones around the world, with significant variation in size and frequency of deep events. Interactions between overriding and subducting plates and slab pull strength
Lithgow‐bertelloni, Carolina   +8 more
core   +1 more source

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