Modeling seismically induced deformation and fluid flow in the Nankai subduction zone [PDF]
Fluid pressure changes induced by seismic strains in the Nankai subduction zone were investigated through numerical modeling. Seismic strains resulting from dislocations along fault surfaces were coupled to pore pressure generation, and subsequent transient fluid flow was simulated.
S. Ge, E. Screaton
openaire +1 more source
The role of compaction contrasts in sediments in décollement initiation in an accretionary prism [PDF]
International audienceTo understand how décollements develop into the pristine sedimentary succession entering subduction zones, we have performed mechanical tests on samples from the sediment column entering the Nankai accretionary prism, Japan (ODP ...
Hamano, Yozo +4 more
core +4 more sources
Distribution and depth of bottom-simulating reflectors in the Nankai subduction margin
Surface heat flow has been observed to be highly variable in the Nankai subduction margin. This study presents an investigation of local anomalies in surface heat flows on the undulating seafloor in the Nankai subduction margin.
Akihiro Ohde +3 more
doaj +1 more source
Filling the Gap in Cascadia: The Emergence of Low‐Amplitude Long‐Term Slow Slip
Long‐term slow slip events have been observed at several subduction zones around the globe, where they play an integral part in strain release along megathrust faults.
Carolyn P. Nuyen, David A. Schmidt
doaj +1 more source
Geological record of prehistoric tsunamis in Mugi town, facing the Nankai Trough, western Japan
Stratigraphic and paleontological investigations in Mugi Town, on the Pacific coast of Shikoku Island, revealed evidence of as many as five tsunami inundations from events along the Nankai Trough between 5581 and 3640 cal yr BP.
Yumi Shimada +10 more
doaj +1 more source
Nonvolcanic tremor observed in the Mexican subduction zone [PDF]
Nonvolcanic tremor (NVT) activity is revealed as episodes of higher spectral amplitude at 1–8 Hz in daily spectrograms from the continuous seismological records in Guerrero, Mexico.
Clayton, Robert W. +6 more
core +3 more sources
ICDP Workshop on Borehole Monitoring at the Nankai Subduction Zone: Building a Land-Ocean Borehole Network to Study the Seismogenic Zone [PDF]
Examples of subduction processes are currently investigated around the Kii Peninsula, Honshu Island by Japanese as well as international projects. The most well-known is the NanTroSEIZE project conducted by the Integrated Ocean Drilling Program (IODP ...
Takeshi Sagiya
doaj +1 more source
Anelastic strain recovery reveals extension across SW Japan subduction zone [PDF]
Sediment dominated convergent margins typically record substantial horizontal shortening often associated with great earthquakes. The convergent margin south of Japan is arguably one of the most extensively investigated margins and previous studies ...
Akito Tsutsumi +35 more
core +1 more source
An aseismic slip pulse in northern Chile and along-strike variations in seismogenic behavior [PDF]
We use interferometric synthetic aperture radar, GPS, and seismic observations spanning 5 to 18 years to reveal a detailed kinematic picture of the spatiotemporal evolution of fault slip in a region corresponding to the 30 July 1995 M_w 8.1 subduction ...
Pritchard, M. E., Simons, M.
core +1 more source
Earthquake and tsunami predictions comprise huge uncertainties, thus necessitating probabilistic assessments for the design of defense facilities and urban planning.
Toshitaka Baba +6 more
doaj +1 more source

