Seismological Aspects of the December 2004 Great Sumatra-Andaman Earthquake [PDF]
, 2006 The 2004 Great Sumatra-Andaman earthquake had an average source duration of about 500 sec. and a rupture length of 1,200–1,300 km. The seismic moment, M0, determined with a finite source model, was 6.5×1022 N-m, which corresponds to Mw=9.18.
Kanamori, Hiroo
core +1 more source
Static Source Properties of Slow and Fast Earthquakes [PDF]
Journal of Geophysical Research: Solid Earth, 2020 AbstractThe source characteristics of slow and fast earthquakes provide a window into the mechanical properties of faults. In particular, the average stress drop controls the evolution of friction, fault slip, and event magnitude. However, this important source property is typically inferred from the analysis of seismic waves and is subject to many ...
Priyamvada Nanjundiah +2 more
openaire +2 more sources
A window into the complexity of the dynamic rupture of the 2011 Mw 9 Tohoku-Oki earthquake [PDF]
, 2011 The 2011 Mw 9 Tohoku-Oki earthquake, recorded by over 1000 near-field stations and multiple large-aperture arrays, is by far the best recorded earthquake in the history of seismology and provides unique opportunities to address fundamental issues in ...
Ampuero, Jean-Paul +2 more
core +1 more source
Gutenberg-Richter’s law in sliding friction of gels [PDF]
, 2011 We report on experimental studies of spatio-temporally heterogeneous stick-slip motions in the sliding friction between a hard polymethyl methacrylate (PMMA, plexiglass) block and a soft poly-dimethyl siloxane (PDMS, silicone) gel plate.
Ampuero, Jean-Paul +5 more
core +1 more source
The development of magmatism along the Cameroon Volcanic Line: evidence from seismicity and seismic anisotropy [PDF]
, 2014 The Cameroon Volcanic Line (CVL) straddles the continent-ocean boundary in West Africa but exhibits no clear age progression. This renders it difficult to explain by traditional plume/plate motion hypotheses; thus, there remains no consensus on the ...
Bastow, I.D. +5 more
core +1 more source
Effects of episodic slow slip on seismicity and stress near a subduction-zone megathrust
Nature Communications, 2021 Large slow slip earthquakes and tremor occur in subduction zones near the locked megathrust. Combined analysis of changes in slab seismicity and stress field near the times of such slow slip events highlights the role of fluid in promoting slow slip.
Saeko Kita +6 more
doaj +1 more source
Structural heterogeneity in the megathrust zone and mechanism of the 2011 Tohoku-oki earthquake (Mw 9.0) [PDF]
, 2011 The great 2011 Tohoku-oki earthquake (Mw 9.0) and its 339 foreshocks and 5,609 aftershocks (9–27 March 2011) were relocated using a three-dimensional seismic velocity model and local P and S wave arrival times.
Hasegawa, Akira +4 more
core +1 more source
Temporal gravity anomalies observed in the Tokai area and a possible relationship with slow slips
Earth, Planets and Space, 2018 The water in Earth’s mantle is closely related with plate subduction and volcanism. Recent studies revealed that the mantle wedge corner at approximately 30 km depth holds high-pressure water, where many slow earthquakes occur. To quantify how such water
Yoshiyuki Tanaka +10 more
doaj +1 more source
Geochemistry, Geophysics, Geosystems, 2021 Repeating earthquakes provide a novel way of monitoring how stresses load faults between large earthquakes. To date, however, and despite the availability of long‐duration, high‐quality seismological datasets, little attention has been paid to tectonic ...
Laura Hughes +3 more
doaj +1 more source
How does dissipation affect the transition from static to dynamic macroscopic friction? [PDF]
, 2014 Description of the transitional process from a static to a dynamic frictional regime is a fundamental problem of modern physics. Previously we developed a model based on the well-known Frenkel-Kontorova model to describe dry macroscopic friction.
Bambakidis, Gust +2 more
core +4 more sources