Amplitude of foreshocks as a possible seismic precursor to earthquakes
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Abstract
In recent years, we have made significant progress in being able to recognize the long-range pattern of events that precede large earthquakes. For example, in a recent issue of the Earthquake Information Bulletin, we saw how the pioneering work of S.A. Fedotov of the U.S.S.R in the Kamchatka-Kurile Islands region has been applied worldwide to forecast where large, shallow earthquakes might occur in the next decades. Indeed, such a "seismic gap" off the coast of Alaska was filled by the 1972 Sitka earthquake. Promising results are slowly accumulating from other techniques that suggest that intermediate-term precursors might also be seen: among these are tilt and geomagnetic anomalies and anomalous land uplift. But the crucial point remains that short-term precursors (days to hours) will be needed in many cases if there is to be a significant saving of lives.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Amplitude of foreshocks as a possible seismic precursor to earthquakes |
| Series title | Earthquake Information Bulletin (USGS) |
| Volume | 10 |
| Issue | 5 |
| Year Published | 1978 |
| Language | English |
| Publisher | U.S Geological Survey |
| Description | 3 p. |
| First page | 162 |
| Last page | 164 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |