Injection-induced moment release can also be aseismic
Geophysical Research Letters
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Abstract
The cumulative seismic moment is a robust measure of the earthquake response to fluid injection for injection volumes ranging from 3100 to about 12 million m3. Over this range, the moment release is limited to twice the product of the shear modulus and the volume of injected fluid. This relation also applies at the much smaller injection volumes of the field experiment in France reported by Guglielmi, et al. (2015) and laboratory experiments to simulate hydraulic fracturing described by Goodfellow, et al. (2015). In both of these studies, the relevant moment release for comparison with the fluid injection was aseismic and consistent with the scaling that applies to the much larger volumes associated with injection-induced earthquakes with magnitudes extending up to 5.8. Neither the micro-earthquakes, at the site in France, nor the acoustic emission in the laboratory samples contributed significantly to the deformation due to fluid injection.
Suggested Citation
McGarr, A., and Barbour, A., 2018, Injection-induced moment release can also be aseismic: Geophysical Research Letters, v. 45, no. 11, p. 5344-5351, https://doi.org/10.1029/2018GL078422.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Injection-induced moment release can also be aseismic |
| Series title | Geophysical Research Letters |
| DOI | 10.1029/2018GL078422 |
| Volume | 45 |
| Issue | 11 |
| Publication Date | June 05, 2018 |
| Year Published | 2018 |
| Language | English |
| Publisher | American Geophysical Union |
| Contributing office(s) | Earthquake Science Center |
| Description | 8 p. |
| First page | 5344 |
| Last page | 5351 |