Seismic Monitoring at the Geysers Geothermal Field, California
Author | : Geological Survey (U.S.) |
Publisher | : |
Total Pages | : 36 |
Release | : 1979 |
Genre | : Geothermal resources |
ISBN | : |
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Author | : Geological Survey (U.S.) |
Publisher | : |
Total Pages | : 36 |
Release | : 1979 |
Genre | : Geothermal resources |
ISBN | : |
Author | : Geological Survey (U.S.) |
Publisher | : |
Total Pages | : 26 |
Release | : 1979 |
Genre | : Geothermal resources |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : |
Release | : 1980 |
Genre | : |
ISBN | : |
Probable effects of geothermal development on seismicity at the Geysers are shown by the spatial coherence of decreases in gravity and pressure with maximum geodetic deformation and seismic moment sum along a line through the most developed area of the geothermal field. Increases in the mean number of events per day and in the magnitude of largest annual event correlate with increases in steam production. The two largest earthquakes in the steam field occurred near the two injection wells most distant from production wells, and large events (M/sub c greater than or equal to 2.5) occurred most frequently during months of peak injection. Spatial seismic clusters in proximity to injection wells have occurred soon after injection began. Preliminary data also indicate an increase in seismicity in a previously aseismic area near plant 15 following the beginning of power production at that plant in 1979.
Author | : Claudia Stone |
Publisher | : |
Total Pages | : 348 |
Release | : 1992 |
Genre | : Technology & Engineering |
ISBN | : |
Author | : Rob Young |
Publisher | : Geological Society of America |
Total Pages | : 316 |
Release | : 2009 |
Genre | : Science |
ISBN | : 0813760321 |
"Geologic Monitoring is a practical, nontechnical guide for land managers, educators, and the public that synthesizes representative methods for monitoring short-term and long-term change in geologic features and landscapes. A prestigious group of subject-matter experts has carefully selected methods for monitoring sand dunes, caves and karst, rivers, geothermal features, glaciers, nearshore marine features, beaches and marshes, paleontological resources, permafrost, seismic activity, slope movements, and volcanic features and processes. Each chapter has an overview of the resource; summarizes features that could be monitored; describes methods for monitoring each feature ranging from low-cost, low-technology methods (that could be used for school groups) to higher cost, detailed monitoring methods requiring a high level of expertise; and presents one or more targeted case studies."--Publisher's description.