| Abstract: | Seven years of seismic data recorded at the Uinta Basin Observatory were searched for earthquakes originating near an oil field at Rangely, Colorado, located 65 km ESE of the observatory. Changes in the number of earthquakes recorded per year appear to correlate with changes in the quantity of fluid injected per year. Between November 1962 and January 1970, 976 earthquakes were detected near the oil field by the UBO station; 320 earthquakes were larger than magnitude 1. Richter magnitudes are estimated from both S-wave and P-wave measurements and a method based on the duration of the seismic signal is used to estimate the magnitude of the larger shocks. The two largest shocks had magnitudes of 3.4 and 3.3. The total seismic energy released was l0l7 ergs. During this same period the energy used for water injection, measured at the wellhead, was 1021 ergs. |
| Genre: | USGS Numbered Series |
| ProdID: | 13787 |
| Citation Author: | Gibbs, James F.; Healy, John H.; Raleigh, C. Barry; Coakley, John M. |
| Citation Contributing Office: | Earthquake Science Center |
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| Citation Language: | English |
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| Citation LatN: | 0403000 |
| Citation LatS: | 0400000 |
| Citation LonE: | -1084500 |
| Citation LonW: | -1094500 |
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| Citation Online Only Flag: | Y |
| Citation Phsyical Description: | 26 p.; Appendix |
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| Citation Publisher: | U.S. Geological Survey |
| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 72-130 |
| Citation Search Results Text: | Earthquakes in the oil field at Rangely, Colorado; 1972; OFR; 72-130; Gibbs, James F.; Healy, John H.; Raleigh, C. Barry; Coakley, John M. |
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| Citation Year: | 1972 |
| Type: | citation/reference |
| Text: | Earthquakes in the oil field at Rangely, Colorado; 1972; OFR; 72-130; Gibbs, James F.; Healy, John H.; Raleigh, C. Barry; Coakley, John M. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/ofr_72_130.gif |
| URL (INDEX PAGE): | http://pubs.usgs.gov/of/1972/0130/ |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey |
