Electrical measurements as stress-strain monitors
Earthquake Information Bulletin (USGS)
By: T. R. Madden
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Abstract
Many of the measurements of phyiscal properties being made in earthquake prediction studies are based on the premise that these properties are influenced by stresses and strains, especially so near the failure point. Electrical properties of rocks are controlled by the fluid in the pores and cracks in the rocks. Because these regions are most influenced by stresses, one should expect electrical measurements to be sensitive measures of changing stresses and strains. Nevertheless, the strain changes we are dealing with are very small, and, consequently, we need very sensitive instruments to detect them.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Electrical measurements as stress-strain monitors |
| Series title | Earthquake Information Bulletin (USGS) |
| Volume | 11 |
| Issue | 1 |
| Year Published | 1979 |
| Language | English |
| Publisher | U.S Geological Survey |
| Description | 5 p. |
| First page | 4 |
| Last page | 8 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |