Earthquake-related temperature changes in two neighboring hot springs at Xiangcheng, China
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- 作者：Y. Ma
- 刊名：Geofluids
- 出版年：2016
- 出版时间：August 2016
- 年：2016
- 卷：16
- 期：3
- 页码：434-439
- 全文大小：709K
- ISSN：1468-8123
文摘
Pre-earthquake and postearthquake temperature changes were documented in two hot springs at Xiangcheng. Pre-earthquake changes were documented in spring I, 13 days before and 106 km away from the Ms 5.8 Zhongdian earthquake. The 11-year cutoff spring spouted again, and the spouted water was 24°C hotter than the former escaping gas. Postearthquake changes were documented in spring II following the 2008 Mw 7.9 Wenchuan earthquake, approximately 425 km away from the epicenter. Temperature in spring II showed a step-like increase with a magnitude of 4°C induced by the earthquake. Spring I which is 0.3 m 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.