Results 31 to 40 of about 3,269 (209)

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   +1 more source

Deformation Process and Mechanism of the Frontal Megathrust at the Nankai Subduction Zone

Geochemistry, Geophysics, Geosystems, 2022
The frontal megathrust of the Nankai Trough subduction zone is recognized as a seismogenic fault based on a record of frictional heating, but the underlying micromechanical processes that act on the fault surface are poorly known. Here we present a layer
Gaku Kimura, Yohei Hamada, Suguru Yabe, Asuka Yamaguchi, Rina Fukuchi, Yukari Kido, Lena Maeda, Sean Toczko, Hanaya Okuda, Nobuhiro Ogawa, Hitoshi Morioka, Kohtaro Ujiie, Demian Saffer   +12 more
doaj   +1 more source

Linking megathrust earthquakes to brittle deformation in a fossil accretionary complex [PDF]

, 2015
Seismological data from recent subduction earthquakes suggest that megathrust earthquakes induce transient stress changes in the upper plate that shift accretionary wedges into an unstable state.
Vennemann, Torsten, Armin Dielforder, Herwegh, Marco, Hauke Vollstaedt, Alfons Berger, Vollstaedt, Hauke, Berger, Alfons, Torsten Vennemann, Dielforder, Armin, Marco Herwegh   +9 more
core   +1 more source

Shallow Slow Slip Events Identified Offshore the Osa Peninsula in Southern Costa Rica From GNSS Time Series

Geophysical Research Letters, 2023
Using new continuous geodetic time series, we identify five shallow slow slip events (SSEs) offshore and beneath the Osa peninsula in southern Costa Rica. An early event was detected by one station in 2013, and two events occurring in close succession in
Mason Perry, Cyril Muller, Marino Protti, Lujia Feng, Emma M. Hill   +4 more
doaj   +1 more source

Detailed seismic velocity of the incoming subducting sediments in the 2004 great Sumatra earthquake rupture zone from full waveform inversion of long offset seismic data

Geophysical Research Letters, 2017
The nature of incoming sediments defines the locking mechanism on the megathrust, and the development and evolution of the accretionary wedge. Here we present results from seismic full waveform inversion of 12 km long offset seismic reflection data ...
Yanfang Qin, Satish C. Singh
doaj   +1 more source

The Seismogenic Potential of the Southernmost Ryukyu Subduction Zone as Revealed by Historical Earthquakes and Slow Slip events

Frontiers in Earth Science, 2022
The southernmost Ryukyu subduction zone may have a geodetically inferred Mw 7.5 to 8.7 megathrust earthquake in a shallow locked region, the Ryukyu fault.
Sean Kuanhsiang Chen, Yih-Min Wu, Yih-Min Wu, Yih-Min Wu, Yu-Chang Chan   +4 more
doaj   +1 more source

Megathrust earthquakes: Inferences from numerical modelling and explainable artificial intelligence

, 2023
Our understanding on the main controls of megathrust seismicity is far from complete, particularly on how modelling the system in 3D affects the related dynamics.
JUAN CARLOS ACTUB GRACIOSA (14686327)
core   +1 more source

The 2016 Mw 5.9 earthquake off the southeastern coast of Mie Prefecture as an indicator of preparatory processes of the next Nankai Trough megathrust earthquake

Progress in Earth and Planetary Science, 2018
Megathrust earthquakes have occurred repeatedly at intervals of 100 to 150 years along the Nankai Trough, situated in the southwest of Japan. Given that it has been 70 years since the last event, the occurrence of the next devastating earthquake is ...
Masaru Nakano, Mamoru Hyodo, Ayako Nakanishi, Mikiya Yamashita, Takane Hori, Shin-ichiro Kamiya, Kensuke Suzuki, Takashi Tonegawa, Shuichi Kodaira, Narumi Takahashi, Yoshiyuki Kaneda   +10 more
doaj   +1 more source

DONET: A Real-Time Monitoring System for Megathrust Earthquakes and Tsunamis Around Southwestern Japan [PDF]

Oceanography, 2014
DONET (Dense Ocean floor Network for Earthquakes and Tsunamis; https://www.jamstec.go.jp/donet/e/index.html) is a cabled seafloor observatory that monitors the Nankai and Tōnankai seismogenic zones, offshore southwestern Japan, in real time. In 1944, two
Yoshiyuki Kaneda
doaj   +1 more source

The hidden simplicity of subduction megathrust earthquakes

Science, 2017
Universal scaling for big quakes The amount of energy released as a large fault ruptures provides some clues about the overall size of an earthquake. Meier et al. looked at this energy release for more than 100 large earthquakes.
M.-A. Meier, J. P. Ampuero, T. H. Heaton
openaire   +3 more sources