Heat signature on the Chelungpu fault associated with the 1999 Chi-Chi, Taiwan earthquake

Autor:	Kuo Fong Ma, Takashi Yanagidani, Setsuro Nakao, Ryo Fujio, Jim Mori, Hisao Ito, Yasuyuki Kano
Rok vydání:	2006
Předmět:	Seismic gap geography geography.geographical_feature_category Anomaly (natural sciences) Borehole Fault (geology) Physics::Geophysics Geophysics Amplitude Interplate earthquake General Earth and Planetary Sciences Far East Signature (topology) Seismology Geology
Zdroj:	Geophysical Research Letters. 33
ISSN:	0094-8276
Popis:	[1] We have made observations of a heat signature that is associated with the frictional heat generated at the time of faulting for a large earthquake. Temperature measurements in a borehole that intersects the Chelungpu fault at a depth of about 1100 m, show a small increase near the fault even six years after the earthquake. The temperature signature has a symmetric shape with a width of about 40 m and is centered on the fault that slipped about 5 m during the 1999 Chi-Chi, Taiwan earthquake. The small amplitude of 0.06°C for the observed temperature anomaly indicates a very low level of friction that generated heat at the time of the earthquake.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c2c42ececa373a4e6d54d8b059cbdea4 https://doi.org/10.1029/2006gl026733 Zobrazit plný text záznamu Plný text