Earthquakes and Volcanoes was published bimonthly by the U.S. Geological Survey to provide current information on earthquakes and seismology, volcanoes, and related natural hazards of interest to both generalized and specialized readers.
The Secretary of the Interior determined that the publication of this periodical was necessary in the transaction of the public business required by law of this Department. Use of funds for printing this periodical was approved by the Office of Management and Budget through June 30, 1989
Volume 20, number 2 (1988) is devoted entirely to the subject of the Parkfield earthquake experiment in central California. In this area of California, near the small town of Parkfield, the San Andreas fault is expected to rupture before 1993 from an earthquake of approximately magnitude 6-- a significant shock. The articles in this report are arranged to cover the Parkfield story, both an earthquake prediction and a major scientific study, in a particular way-- first introducing the idea of regularly occurring significant earthquakes in the Parkfield Area, the Federal role in such earthquake predictions, the specific instrumentation at Parkfield, the scientific goals of the experiment, the USGS prediction plan, and the State response to the prediction. Because each article builds on the preceding articles, this issue is best read from the beginning. [from Editor's Note]
Due to the earthquakes there in October, 2004, this volume has become of greater interest once more so it was scanned and put online here.
The articles in this Parkfield volume consist of:
Download Volume 20, number 2:, the Parkfield edition, as a 56-page PDF file (eq_and_volc_v20_n02.pdf; 63.6 MB).
Read the USGS Fact Sheet: "The Parkfield Experiment--Capturing What Happens in an Earthquake," Fact Sheet 049-02, Revised July 2004
Learn more about earthquakes and the hazards they pose at the USGS Earthquake Hazards Program website
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These reports are available only on the web.