期刊
GEOFLUIDS
卷 16, 期 3, 页码 434-439出版社
WILEY-HINDAWI
DOI: 10.1111/gfl.12161
关键词
groundwater temperature; Wenchuan earthquake; hot springs; permeability enhancement; static strain
资金
- special fund for the earthquake-related Scientific Research of the China Earthquake Administration [2015010308]
Pre-earthquake and postearthquake temperature changes were documented in two hot springs at Xiangcheng. Pre-earthquake changes were documented in spring I, 13days before and 106km away from the M-s 5.8 Zhongdian earthquake. The 11-year cutoff spring spouted again, and the spouted water was 24 degrees C hotter than the former escaping gas. Postearthquake changes were documented in spring II following the 2008 M-w 7.9 Wenchuan earthquake, approximately 425km away from the epicenter. Temperature in spring II showed a step-like increase with a magnitude of 4 degrees C induced by the earthquake. Spring I which is 0.3m apart from spring II did not show a sudden change following the earthquake. However, temperatures in the two springs were identical after the Wenchuan earthquake. It indicates that the earthquake generated new hydraulic connectivity between springs I and II, and the heat transport between the two springs accounts for the postearthquake temperature changes.
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