Faults greased at high speed

Article Abstract:

The concept of tectonic faults that produce earthquakes is the key issue mentioned. The findings from the laboratory experiments help to understand the rock friction and to determine the changes as faults accelerate from slip rates associated with creep and plate tectonic motion to seismic slip rates of metres per second.

Earthquakes

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Nonlinear dynamics, granular media and dynamic earthquake triggering

Article Abstract:

A demonstration that the dynamic, elastic-nonlinear behavior of fault gouge perturbed by a seismic wave might trigger earthquakes, even with small strains is presented. It provides an understanding that, if the fault is weak, seismic surrogate cause the fault core modulus to decrease abruptly and weaken further.

California, Usage, Measurement, Chaos theory, Earthquake intensity, Fault location (Engineering)

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Effects of acoustic waves on stick-slip in granular media and implications for earthquakes

Article Abstract:

A study to show that small-magnitude failure events, corresponding to triggered aftershocks, occur when applied acoustic sound-wave amplitudes exceed several microstrains is conducted. Findings reveal that these events are frequently delayed or occur as a part of a cascade of small events.

Research and Development in the Physical, Engineering, and Life Sciences, Earthquake R&D, Environmental aspects, Seismological research, Sound-waves, Sound waves, Seismic waves

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