Hydrologic effects associated with the January 17, 1994 Northridge, California, earthquake

E.G. Quilty; C. D. Farrar; D. L. Galloway; S. N. Hamlin; R. J. Laczniak; E.A. Roeloffs; M. L. Sorey; D.E. Woodcock

doi:10.3133/ofr95813

Hydrologic effects associated with the January 17, 1994 Northridge, California, earthquake

Open-File Report 95-813

By: E.G. Quilty, C. D. Farrar, D. L. Galloway, S. N. Hamlin, R. J. Laczniak, E.A. Roeloffs, M. L. Sorey, and D.E. Woodcock

https://doi.org/10.3133/ofr95813

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Abstract

This report compiles hydrologic observations in southern California associated with the 1994 Mw = 6.7 Northridge, California earthquake. In southern California, the largest ground water level change was a drop of 52 cm at Crystalaire. Most of the steplike water-level changes recorded following the Northridge earthquake agreed in direction with the sign of the calculated coseismic volume strain field. A spring discharge increase at Southern Pacific Springs was reported to have preceded the earthquake by several days. Outside of southern California, water-level changes were also observed, but are not consistent in sign or size with the static strain field of the earthquake sequence.

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Additional publication details
Publication type	Report
Publication Subtype	USGS Numbered Series
Title	Hydrologic effects associated with the January 17, 1994 Northridge, California, earthquake
Series title	Open-File Report
Series number	95-813
DOI	10.3133/ofr95813
Year Published	1995
Language	English
Publisher	U.S. Geological Survey
Contributing office(s)	Volcano Hazards Program, Ohio-Kentucky-Indiana Water Science Center
Description	ii, 47 p.
Country	United States
State	California, Nevada, Oregon
Google Analytic Metrics	Metrics page