Seismic cycle stress change in western Taiwan over the last 270 years
Artikel i vetenskaplig tidskrift, 2010

The island of Taiwan is affected by intense seismic activity, which includes large events as the disastrous 1999 Chi-Chi earthquake. To improve seismic hazard assessment in this area, we estimate the effect of both interseismic loading and major events since 1736 on the state of stress of major active faults. We focus our approach on western Taiwan, which is the most densely populated part of Taiwan. We pay a specific attention to faults geometry and to both interseismic and coseismic slip distributions. Our results suggest that both earthquakes and interseismic loading before 1999 increase the Coulomb stress in the north-western part of the Chelungpu fault, a region which experienced the highest coseismic slip during the Chi-Chi earthquake. More importantly our results reveal a Coulomb stress increase in the southern part of the Changhua thrust fault, below a densely populated area.

Författare

Maxime Mouyen

Université de Strasbourg

Rodolphe Cattin

Université de Montpellier

Frederic Masson

Université de Strasbourg

Geophysical Research Letters

0094-8276 (ISSN)

Vol. 37 3 L03306

Ämneskategorier

Geofysik

Klimatforskning

Fusion, plasma och rymdfysik

DOI

10.1029/2009GL042292

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Senast uppdaterat

2022-02-24