Coseismic release of water from mountains: Evidence from the 1999 (Mw = 7.5) Chi-Chi, Taiwan, earthquake
Coseismic release of water from mountains: Evidence from the 1999 (Mw = 7.5) Chi-Chi, Taiwan, earthquake
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DOI：
10.1130/g20753.1
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发表时间：
2004-09
期刊：
影响因子：
5.8
通讯作者：
Chi‐yuen Wang;Chung-Ho Wang;M. Manga
中科院分区：
文献类型：
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作者：
Chi‐yuen Wang;Chung-Ho Wang;M. Manga
1999年台湾中部集集地震（M w = 7.5）后，记录了地震引起的流量增加，产生了约0.7 km 3的总过量水。对水表数据和井记录的分析表明，过量的水起源于山区。我们认为，地震期间形成的广泛的高角度裂缝允许水从山上快速释放，构造活跃地区的山脉可能在与大地震复发时间相当的时间间隔内反复被大气水冲刷。
Earthquake-induced increases in streamflow, producing ∼0.7 km 3 of total excess water, were documented after the 1999 (M w = 7.5) Chi-Chi earthquake in central Taiwan. Analysis of stream gauge data and well records suggests that the excess water originated in the mountains. We propose that the extensive high-angle fractures formed during the earthquake allow rapid release of water from mountains and that mountains in tectonically active areas may be repeatedly flushed by meteoric water at time intervals comparable to the recurrence time of large earthquakes.