Results 271 to 280 of about 7,254 (288)
Some of the next articles are maybe not open access.
Tsunami Efficiency Due to Very Slow Earthquakes
Seismological Research Letters, 2020Abstract Often, tsunami “sources” have been treated as a quasistatic problem. Initial studies have demonstrated that, for earthquake rupture velocities in the span of 1.5–3 km/s, the kinematic and static part of the tsunami can be treated separately. However, very slow earthquake rupture velocities in the span of 0.1–1 km/s have not
Sebastian Riquelme, Mauricio Fuentes
openaire +1 more source
Slow Earthquakes and Nonvolcanic Tremor
Annual Review of Earth and Planetary Sciences, 2011Nonvolcanic tremor is observed in close association with geodetically observed slow-slip events in subduction zones. Accumulating evidence points to these events as members of a family of slow earthquakes that occur as shear slip on the downdip extensions of fault zones in a regime that is transitional between a frictionally locked region above and a ...
Gregory C. Beroza, Satoshi Ide
openaire +1 more source
Science, 1998
SEISMOLOGYTheoretical and lab studies have suggested that faults should give off warning signs as they edge toward rupture, but no one has yet found what they are. Now, researchers using a seemingly roundabout method--testing for the effects of tides on quake timing--offer the strongest evidence yet that some faults do start to slip, rapidly ...
openaire +1 more source
SEISMOLOGYTheoretical and lab studies have suggested that faults should give off warning signs as they edge toward rupture, but no one has yet found what they are. Now, researchers using a seemingly roundabout method--testing for the effects of tides on quake timing--offer the strongest evidence yet that some faults do start to slip, rapidly ...
openaire +1 more source
Science, 2019
Geophysics The Japan Trench is responsible for disastrous megathrust earthquakes like the 2011 Tohoku-Oki quake. Nishikawa et al. used new observations from the S-net ocean-bottom seismic network to map slow earthquakes—disturbances that do not cause ground shaking—along the Japan Trench (see the Perspective by Houston).
openaire +1 more source
Geophysics The Japan Trench is responsible for disastrous megathrust earthquakes like the 2011 Tohoku-Oki quake. Nishikawa et al. used new observations from the S-net ocean-bottom seismic network to map slow earthquakes—disturbances that do not cause ground shaking—along the Japan Trench (see the Perspective by Houston).
openaire +1 more source
Stress redistribution and slow earthquakes
Tectonophysics, 1982Abstract Earthquakes are usually assumed to result when the gradual stress buildup in a region eventually exceeds some initial local strength. There are observations which suggest that a number of mechanisms must have a significant role in stress redistribution in active earthquake regions.
I.Selwyn Sacks +3 more
openaire +1 more source
Slow earthquakes and great earthquakes along the Nankai trough
Earth and Planetary Science Letters, 2002Abstract We have reexamined reports indicating that slow deformation occurred before the great Japan earthquakes of 1944 (Tonankai) and 1946 (Nankaido) and find that the observations are well founded. Although no quantitative models have previously been proposed to explain all of the relevant data we show that they are satisfied by a simple model for
Alan T Linde, I.Selwyn Sacks
openaire +1 more source
Towards Slow Earthquakes Forecasting
2020<p>Slow Slip Events (SSEs) are episodic slip events that play a significant role in the moment budget along subduction megathrust. They share many similarities with regular earthquakes, and have been observed in major subduction regions like, for example, Cascadia, Japan, Mexico, New Zealand.
Adriano Gualandi +3 more
openaire +1 more source
Teleseismic Search for Slow Precursors to Large Earthquakes
Science, 1994Some large earthquakes display low-frequency seismic anomalies that are best explained by episodes of slow, smooth deformation immediately before their high-frequency origin times. Analysis of the low-frequency spectra of 107 shallow-focus earthquakes revealed 20 events that had slow precursors (95 percent confidence level); 19 were slow earthquakes ...
P F, Ihmlé, T H, Jordan
openaire +2 more sources
Data-driven slow earthquake dynamics
2023Friction is a complex phenomenon. This can be seen, for example, in laboratory experiments where stick-slip motion of various kind (i.e., slow and fast instabilities) can be produced when adapting the normal stress applied to the system. Similarly, natural earthquakes also producecomplex stick-slip behaviour.
Gianmarco Mengaldo +2 more
openaire +1 more source
Earthquakes: slow down for safety
Nature, 1996In December 1992, part of the San Andreas fault ruptured. No damage was caused, because instead of lasting for a few seconds, this earthquake sequence took a week. So why are other earthquakes fast?
openaire +1 more source