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The Parkfield-Cholame, California, earthquakes of June-August, 1966; instrumental seismic studies

Crustal Studies Technical Letter 1

Menlo Park Science Center
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Abstract

U.S. Geological Survey instrumental seismic studies in the Parkfield-Cholame area consist of three related parts that were undertaken as pilot studies in a program designed to develop improved tools and concepts for investigating the properties and behavior of the San Andreas fault. These studies include: 1. The long=term monitoring of the seismic background on the San Andreas fault in Cholame Valley by means of a short-period Benioff seismograph station at Gold Hill. 2. The investigation of the geometry of the zone of aftershocks of the June 27 earthquakes by means of a small portable cluster of short-period, primarily vertical-component seismographs. 3. The seismic-refraction calibration of the region enclosing the aftershock source by means of three short reversed refraction profiles and a "calibration shot" near the epicenter of the main June 27 earthquake. This brief report outlines the work that has been completed and presents some preliminary results obtained from analysis of records from Gold Hill and the portable cluster.

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Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Unnumbered Series
Title:
The Parkfield-Cholame, California, earthquakes of June-August, 1966; instrumental seismic studies
Series title:
Crustal Studies Technical Letter
Series number:
1
Year Published:
1967
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Contributing office(s):
Earthquake Science Center
Description:
iv, 26 p.
Country:
United States
State:
California
Online Only (Y/N):
Y