Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4680402 | Earth and Planetary Science Letters | 2007 | 12 Pages |
Abstract
We describe a pressure transient triggered near an active fault by seismic waves generated more than 10 000 km away during the 2003 Mw = 7.8 Rat Island earthquake. In contrast with previous similar observations, the pressure drop occurs simultaneously with the arrival of S waves, and not during the passage of the Rayleigh waves that have larger amplitudes and smaller frequencies. This small 60 Pa drop is compatible with a small slip on the fault, which induced either dilatant damage or a transient disruption in the impermeable barrier the fault constitutes.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Earth and Planetary Sciences (General)
Authors
M.L. Doan, F.H. Cornet,