Results 91 to 100 of about 825 (168)

On the Mechanism of Laboratory Earthquake Nucleation Highlighted by Acoustic Emission. [PDF]

Sci Rep, 2020
Ostapchuk AA, Morozova KG.
europepmc   +1 more source

Spatiotemporal Variations of In Situ Vp/Vs Ratios During the 2019 Ridgecrest Earthquake Sequence Suggest Fault Zone Condition Changes

Geophysical Research Letters
The 2019 Mw 7.1 Ridgecrest earthquake was the largest event in California over the past 20 years. The earthquake was preceded by a sequence of foreshocks. However, the physical processes leading to the mainshock remain unclear.
Guoqing Lin, Wenyuan Fan
doaj   +1 more source

Potential for Continental Scientific Drilling to Inform Fault Mechanics and Earthquake Science

Seismica
Our understanding of fault mechanics and earthquake processes remains limited, largely due to minimal direct observations near active faults at seismogenic depths.
Elizabeth S. Cochran, Natalia Zakharova, Brett Carpenter, Folarin Kolawole, Nicholas W. Hayman, Hiroki Sone, Douglas R. Schmitt, Peter Eichhubl, William Ellsworth, Yves Guglielmi, Stephen Hickman, Harold J. Tobin   +11 more
doaj   +1 more source

Numerical simulations of earthquake rupture induced by pressure perturbation

Geodesy and Geodynamics
The subsurface fluid injection can cause pressure increase within faults, leading to earthquake occurrences. However, the factors controlling earthquake rupture due to pressure perturbation remain poorly understood.
Bingquan Ren, Caijun Xu, Guoyan Jiang, Lei Yang   +3 more
doaj   +1 more source

Earthquake Nucleation Processes Across Different Scales and Settings

, 2020
Extended nucleation phases of earthquakes have been regularly observed, yet the underlying mechanisms governing the initiation phase of rupture are yet to be understood in detail. Currently two end member models exist to explain earthquake nucleation: one model claiming that the nucleation phase of a small earthquake is indistinguishable from that of a
openaire   +4 more sources

Earthquake nucleation: small signals from Big Data

, 2020
Catastrophic failure events, such as earthquakes, volcanic eruptions and landslides, are linked by material failure processes. Seismicity and strain data can be used to track the failure processes that might be occurring before large events, and which may be used to provide forecasts of event magnitude and time.
openaire   +2 more sources

Earthquake Nucleation Size: Evidence of Loading Rate Dependence in Laboratory Faults. [PDF]

J Geophys Res Solid Earth, 2019
Guérin-Marthe S, Nielsen S, Bird R, Giani S, Di Toro G.   +4 more
europepmc   +1 more source

Traces Of Laboratory Earthquake Nucleation In The Spectrum Of Ambient Noise. [PDF]

Sci Rep, 2018
Kocharyan GG, Ostapchuk AA, Pavlov DV.
europepmc   +1 more source

Tidal and hydrological seismicity modulations reveal pore fluid diffusion during earthquake nucleation. [PDF]

Sci Adv
Zhao Z, Xue L, Bürgmann R, Heimisson ER, Lu W, Yue H.   +5 more
europepmc   +1 more source

How do earthquakes start? A seismological investigation into earthquake nucleation and determinism

Scientists continue to debate many questions about the beginnings of earthquakes. At the single event scale, what processes go on in the earliest stages of rupture, and do they depend on magnitude? At a large scale, what processes cause earthquakes to occur when they do, and can foreshocks give insights into earthquake nucleation?
openaire   +2 more sources