Evidence for Rainfall-Triggered Earthquake Activity
Source: Fluids are known to be of major importance for […]
Date Posted:
August 9, 2013
Source: Fluids are known to be of major importance for the earthquake generation because pore pressure variations alter the strength of faults.
Thus they can initiate earthquakes if the crust is close enough to its critical state. Based on the observations of the isolated seismicity below the densely monitored Mt. Hochstaufen, SE Germany, we are now able to demonstrate that the crust can be so close-to-failure that even tiny pressure variations associated with precipitation can trigger earthquakes in a few kilometer depth.
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