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Transient change in groundwater temperature after earthquakes

Chi-yuen Wang, Michael Manga, Chung-Ho Wang and Chieh-Hung Chen
Transient change in groundwater temperature after earthquakes
Geology (Boulder) (January 2012) 40 (2): 119-122

Abstract

Postseismic decrease in groundwater temperature was documented on the upper rim of a large alluvial fan near the epicenter of the 1999 M (sub w) 7.5 Chi-Chi earthquake (Taiwan). We use a model of coupled heat transport and groundwater flow, constrained by documented water-level changes, to interpret this change. We show that groundwater temperature is sensitive to earthquake-induced flow and the observed temperature decrease may be explained by increased groundwater discharge due to earthquake-enhanced vertical permeability. The result implies that heat flow near active mountain fronts may be lowered by recurrent earthquakes.


ISSN: 0091-7613
EISSN: 1943-2682
Coden: GLGYBA
Serial Title: Geology (Boulder)
Serial Volume: 40
Serial Issue: 2
Title: Transient change in groundwater temperature after earthquakes
Affiliation: University of California, Berkeley, Earth & Planetary Science, Berkeley, CA, United States
Pages: 119-122
Published: 20120106
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 25
Accession Number: 2012-018489
Categories: HydrogeologySeismology
Document Type: Serial
Bibliographic Level: Analytic
Annotation: With GSA Data Repository Item 2012033
Illustration Description: illus. incl. sect., 2 tables, sketch map
N23°30'00" - N24°30'00", E120°00'00" - E121°00'00"
Secondary Affiliation: Academia Sinica, Institute of Earth Sciences, TWN, Taiwan
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 201210
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