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Water-level monitoring in the area of the Palmdale Uplift, Southern California

Earthquake Information Bulletin (USGS)
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Abstract

Abnormal behavior of water levels in wells has been observed prior to a number of earthquakes. For instance, water-level minima have been noted in the Cienega Winery well before earthquakes on the San Andreas fault. Abnormal water-level fluctuations were used in conjunctions with other precursors to predict the February 4, 1975, Haicheng earthquake in northeastern China. That such changes should occur prior to earthquakes is not surprising. Ground water that occupies the void spaces in porous rocks or alluvium can be expected to rise in wells when an aquifer is squeezed and fall when it is distended. COnfined aquifers, in particualr, have been found to be highly sensitive to Earth strain changes. 

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Water-level monitoring in the area of the Palmdale Uplift, Southern California
Series title Earthquake Information Bulletin (USGS)
Volume 10
Issue 4
Year Published 1978
Language English
Publisher U.S Geological Survey
Description 4 p.
First page 144
Last page 147
Country United States
State California
Online Only (Y/N) N
Additional Online Files (Y/N) N