Authors
Mong‐Han Huang, Hsin Tung, Eric J Fielding, Hsin‐Hua Huang, Cunren Liang, Chung Huang, Jyr‐Ching Hu
Publication date
2016/7/28
Journal
Geophysical Research Letters
Volume
43
Issue
14
Pages
7459-7467
Description
Rapid shortening in convergent mountain belts is often accommodated by slip on faults at multiple levels in upper crust, but no geodetic observation of slip at multiple levels within hours of a moderate earthquake has been shown before. Here we show clear evidence of fault slip within a shallower thrust at 5–10 km depth in SW Taiwan triggered by the 2016 Mw 6.4 MeiNong earthquake at 15–20 km depth. We constrain the primary coseismic fault slip with kinematic modeling of seismic and geodetic measurements and constrain the triggered slip and fault geometry using synthetic aperture radar interferometry. The shallower thrust coincides with a proposed duplex located in a region of high fluid pressure and high interseismic uplift rate, and may be sensitive to stress perturbations. Our results imply that under tectonic conditions such as high‐background stress level and high fluid pressure, a moderate lower …
Total citations
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Scholar articles
MH Huang, H Tung, EJ Fielding, HH Huang, C Liang… - Geophysical Research Letters, 2016