Fault activation by hydraulic fracturing in western Canada
Hydraulic fracturing has been inferred to trigger the majority of injection-induced earthquakes in western Canada, in contrast to the Midwestern United States, where massive saltwater disposal is the dominant triggering mechanism. A template-based earthquake catalog from a seismically active Canadia...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 2016-12, Vol.354 (6318), p.1406-1409 |
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| container_title | Science (American Association for the Advancement of Science) |
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| creator | Bao, Xuewei Eaton, David W. |
| description | Hydraulic fracturing has been inferred to trigger the majority of injection-induced earthquakes in western Canada, in contrast to the Midwestern United States, where massive saltwater disposal is the dominant triggering mechanism. A template-based earthquake catalog from a seismically active Canadian shale play, combined with comprehensive injection data during a 4-month interval, shows that earthquakes are tightly clustered in space and time near hydraulic fracturing sites. The largest event [moment magnitude (Mw) 3.9] occurred several weeks after injection along a fault that appears to extend from the injection zone into crystalline basement. Patterns of seismicity indicate that stress changes during operations can activate fault slip to an offset distance of >1 km, whereas pressurization by hydraulic fracturing into a fault yields episodic seismicity that can persist for months. |
| doi_str_mv | 10.1126/science.aag2583 |
| format | Article |
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Patterns of seismicity indicate that stress changes during operations can activate fault slip to an offset distance of >1 km, whereas pressurization by hydraulic fracturing into a fault yields episodic seismicity that can persist for months.</description><subject>Activation</subject><subject>Basements</subject><subject>Earthquakes</subject><subject>Fault lines</subject><subject>Faults</subject><subject>Geological faults</subject><subject>Hydraulic fracturing</subject><subject>Intervals</subject><subject>Oil shale</subject><subject>Seismicity</subject><subject>Seismology</subject><issn>0036-8075</issn><issn>1095-9203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNqNkT1PwzAQhi0EoqUwM4EisbCkPcd2YrOhigJSJRaYI8d2iqvUATsB9d_jqqEDE9NJ9z73-SJ0iWGKcZbPgrLGKTOVcpUxTo7QGINgqciAHKMxAMlTDgUbobMQ1gBRE-QUjbKCs5wzGKO7heybLpGqs1-ys61Lqm3yvtU-pq1Kah-V3lu3SqxLvk3ojHfJXDqp5Tk6qWUTzMUQJ-ht8fA6f0qXL4_P8_tlKmkuupQorXHOiYyzgfFK1ZUyuBAGjABtaKGoqiiWUtMc47qqGceQAWheCcKFIBN0u-_74dvPPq5QbmxQpmmkM20fSsw5AC4y_h-UxsmMxVdN0M0fdN323sVDdpSgUFDMIjXbU8q3IXhTlx_ebqTflhjKnQPl4EA5OBArroe-fbUx-sD_vjwCV3tgHbrWH3RKC4wpy8kPUo6L2Q</recordid><startdate>20161216</startdate><enddate>20161216</enddate><creator>Bao, Xuewei</creator><creator>Eaton, David W.</creator><general>American Association for the Advancement of Science</general><general>The American Association for the Advancement of Science</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QG</scope><scope>7QL</scope><scope>7QP</scope><scope>7QQ</scope><scope>7QR</scope><scope>7SC</scope><scope>7SE</scope><scope>7SN</scope><scope>7SP</scope><scope>7SR</scope><scope>7SS</scope><scope>7T7</scope><scope>7TA</scope><scope>7TB</scope><scope>7TK</scope><scope>7TM</scope><scope>7U5</scope><scope>7U9</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>H94</scope><scope>JG9</scope><scope>JQ2</scope><scope>K9.</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>M7N</scope><scope>P64</scope><scope>RC3</scope><scope>7X8</scope><scope>7SM</scope></search><sort><creationdate>20161216</creationdate><title>Fault activation by hydraulic fracturing in western Canada</title><author>Bao, Xuewei ; 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| identifier | ISSN: 0036-8075 |
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| source | American Association for the Advancement of Science; Jstor Complete Legacy |
| subjects | Activation Basements Earthquakes Fault lines Faults Geological faults Hydraulic fracturing Intervals Oil shale Seismicity Seismology |
| title | Fault activation by hydraulic fracturing in western Canada |
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