Geology topics
Source-linked reports with geographic coverage including Parkfield, California.
The only formally endorsed prediction of an earthquake in the Unites States appears to be holding up well. The magnitude 5.6 Parkfield Earthquake, expected to strike a section of the San Andreas in sparsely populated central California in January 1988, give or take 5 years, would appear to be on schedule despite a jolt to the Parkfield area from the nearby Coalinga earthquake.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Moderate-sized earthquakes (Richter magnitude ML 5 1/2) have occurred four times this century (1901, 1922, 1934, and 1966) on the San Andreas fault near Parkfield in central California. In many respects the June 1966 sequence was a remarkably detailed repetition of the June 1934 sequence, suggesting a recurring recognizable pattern of stress and fault zone behavior.