Finite-fault slip model of the 2011 Mw 5.6 Prague, Oklahoma earthquake from regional waveforms
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Abstract
The slip model for the 2011 Mw 5.6 Prague, Oklahoma, earthquake is inferred using a linear least squares methodology. Waveforms of six aftershocks recorded at 21 regional stations are used as empirical Green's functions (EGFs). The solution indicates two large slip patches: one located around the hypocenter with a depth range of 3–5.5 km; the other located to the southwest of the epicenter with a depth range from 7.5 to 9.5 km. The total moment of the solution is estimated at 3.37 × 1024 dyne cm (Mw 5.65). The peak slip and average stress drop for the source at the hypocenter are 70 cm and 90 bars, respectively, approximately one half the values for the Mw 5.8 2011 Mineral, Virginia, earthquake. The stress drop averaged over all areas of slip is 16 bars. The relatively low peak slip and stress drop may indicate an induced component in the origin of the Prague earthquake from deep fluid injection.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Finite-fault slip model of the 2011 Mw 5.6 Prague, Oklahoma earthquake from regional waveforms |
| Series title | Geophysical Research Letters |
| DOI | 10.1002/2014GL060410 |
| Volume | 41 |
| Issue | 12 |
| Year Published | 2014 |
| Language | English |
| Publisher | American Geophysical Union |
| Publisher location | Washington |
| Contributing office(s) | Geologic Hazards Science Center |
| Description | 7 p. |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Geophysical Research Letters |
| First page | 4207 |
| Last page | 4213 |
| Country | United States |
| State | Oklahoma |
| City | Prague |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |