Journal Article10.1126/SCIENCE.1070378
Nonvolcanic deep tremor associated with subduction in southwest Japan.
TL;DR: Deep long-period tremors were recognized and located in a nonvolcanic region in southwest Japan, indicating that the tremors may have been caused by fluid generated by dehydration processes from the slab.
read more
Abstract: Deep long-period tremors were recognized and located in a nonvolcanic region in southwest Japan. Epicenters of the tremors were distributed along the strike of the subducting Philippine Sea plate over a length of 600 kilometers. The depth of the tremors averaged about 30 kilometers, near the Mohorovic discontinuity. Each tremor lasted for at most a few weeks. The location of the tremors within the subduction zone indicates that the tremors may have been caused by fluid generated by dehydration processes from the slab.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Thermochronology of non-volcanic hydrothermal activity in the Kii Peninsula, Southwest Japan: Evidence from fission track dating and helium isotopes in paleo-hydrothermal fluids
TL;DR: Fission track dating of zircon and apatite samples from the altered host rocks around three hot springs (Yunomine Hot Spring, Kamiyu Hot Spring and Tosenji Hot spring) was carried out in order to elucidate the thermochronology of the hydrothermal system in this non-volcanic region.
Scaling Relationships of Source Parameters for Slow Slip Events
TL;DR: In this paper, the authors explore the scaling relationships of various source parameters and compare them with similar scaling laws for earthquakes, highlighting differences and similarities between slow slip events and earthquakes and hold implications for the degree of heterogeneity and fault-healing characteristics.
A comparative study of low frequency earthquake templates in northern Cascadia
A. A. Royer,Michael G. Bostock +1 more
TL;DR: In this paper, the authors generate low frequency earthquake templates for a set of 4 composite arrays on Vancouver Island and Washington state that employ data from EarthScope (Transportable and flexible arrays, Plate Boundary Observatory), POLARIS and permanent network (Canadian National Seismograph Network, Pacific Northwest Seismic Network) sources.
Subduction of a wedge‐shaped Philippine Sea plate beneath Kanto, central Japan, estimated from converted waves and small repeating earthquakes
TL;DR: In this paper, the configuration of the Philippine Sea plate (PHS) subducted beneath Kanto to understand the seismotectonics in the Tokyo metropolitan area was estimated and the results from 794 S-toP and 212 P-to-S converted waves together with ∼200 repeater locations showed that the PHS has a wedge-like shape, decreasing in thickness from 50 km beneath Tokyo to zero at its northeastern limit.
References
Long-period volcano seismicity: its source and use in eruption forecasting
TL;DR: At an active volcano, long-period seismicity reflects pressure fluctuations resulting from unsteady mass transport in the sub-surface plumbing system, and hence provides a glimpse of the internal dynamics of the volcanic edifice as mentioned in this paper.
Volcanic tremor: Nonlinear excitation by fluid flow
TL;DR: In this article, a simple lumped-parameter tremor model involving the flow of an incompressible viscous fluid through a channel with movable elastic walls leads to a third-order system of nonlinear ordinary differential equations.
381
Complete miscibility between silicate melts and hydrous fluids in the upper mantle: experimental evidence and geochemical implications
Hélène Bureau,Hans Keppler +1 more
TL;DR: The phase relationship between silicate melts and hydrous fluids was studied by direct visual observation in an externally heated diamond-anvil cell as mentioned in this paper, where complete miscibility of silicate melt and water was observed for a wide range of melt compositions, including nepheline, jadeite, dacite, haplogranite and Ca-bearing granite.
367
Deep, low-frequency microearthquakes in or around seismic low-velocity zones beneath active volcanoes in northeastern Japan
Akira Hasegawa,Akira Yamamoto +1 more
TL;DR: In this paper, precise hypocenter relocations have been made for shallow intraplate microearthquakes beneath northeastern Japan by applying source region station corrections, and the relocated hypocenter distribution shows that most of the events are confined to the upper 15 km of the crust which forms the brittle seismogenic zone in this volcanic arc.