Earthquake stress drop and laboratory-inferred interseismic strength recovery
We determine the scaling relationships between earthquake stress drop and recurrence interval tr that are implied by laboratory‐measured fault strength. We assume that repeating earthquakes can be simulated by stick‐slip sliding using a spring and slider block model. Simulations with static/kinetic...
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| Veröffentlicht in: | Journal of Geophysical Research 2001-12, Vol.106 (B12), p.30701-30713 |
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| container_issue | B12 |
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| container_title | Journal of Geophysical Research |
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| creator | Beeler, N. M. Hickman, S. H. Wong, T.‐f. |
| description | We determine the scaling relationships between earthquake stress drop and recurrence interval tr that are implied by laboratory‐measured fault strength. We assume that repeating earthquakes can be simulated by stick‐slip sliding using a spring and slider block model. Simulations with static/kinetic strength, time‐dependent strength, and rate‐ and state‐variable‐dependent strength indicate that the relationship between loading velocity and recurrence interval can be adequately described by the power law VL∝trn where n≈−1. Deviations from n=−1 arise from second order effects on strength, with n>−1 corresponding to apparent time‐dependent strengthening and n |
| doi_str_mv | 10.1029/2000JB900242 |
| format | Article |
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M. ; Hickman, S. H. ; Wong, T.‐f.</creator><creatorcontrib>Beeler, N. M. ; Hickman, S. H. ; Wong, T.‐f.</creatorcontrib><description>We determine the scaling relationships between earthquake stress drop and recurrence interval tr that are implied by laboratory‐measured fault strength. We assume that repeating earthquakes can be simulated by stick‐slip sliding using a spring and slider block model. Simulations with static/kinetic strength, time‐dependent strength, and rate‐ and state‐variable‐dependent strength indicate that the relationship between loading velocity and recurrence interval can be adequately described by the power law VL∝trn where n≈−1. Deviations from n=−1 arise from second order effects on strength, with n>−1 corresponding to apparent time‐dependent strengthening and n<−1 corresponding to weakening. Simulations with rate and state‐variable equations show that dynamic shear stress drop Δτd scales with recurrence as dΔτd/dlntr≤σe(b‐a), where σe is the effective normal stress, μ=τ/σe, and (a‐b)=dμss/dlnV is the steady‐state slip rate dependence of strength. In addition, accounting for seismic energy radiation, we suggest that the static shear stress drop Δτs scales as dΔτs/dlntr≤σe(1 +ζ)(b‐a), where ζ is the fractional overshoot. The variation of Δτs with lntr for earthquake stress drops is somewhat larger than implied by room temperature laboratory values of ζ and b‐a. However, the uncertainty associated with the seismic data is large and the discrepancy between the seismic observations and the rate of strengthening predicted by room temperature experiments is less than an order of magnitude.</description><identifier>ISSN: 0148-0227</identifier><identifier>EISSN: 2156-2202</identifier><identifier>DOI: 10.1029/2000JB900242</identifier><language>eng</language><publisher>Washington, DC: Blackwell Publishing Ltd</publisher><subject>Earth sciences ; Earth, ocean, space ; Earthquakes, seismology ; Exact sciences and technology ; Internal geophysics</subject><ispartof>Journal of Geophysical Research, 2001-12, Vol.106 (B12), p.30701-30713</ispartof><rights>Copyright 2001 by the American Geophysical Union.</rights><rights>2002 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a5345-c19d7195f77b71eeb9707374c71b244422685a28089dd1d099eb3f14174608813</citedby><cites>FETCH-LOGICAL-a5345-c19d7195f77b71eeb9707374c71b244422685a28089dd1d099eb3f14174608813</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1029%2F2000JB900242$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1029%2F2000JB900242$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>315,781,785,1418,1434,11516,27926,27927,45576,45577,46411,46470,46835,46894</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=13442027$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Beeler, N. M.</creatorcontrib><creatorcontrib>Hickman, S. H.</creatorcontrib><creatorcontrib>Wong, T.‐f.</creatorcontrib><title>Earthquake stress drop and laboratory-inferred interseismic strength recovery</title><title>Journal of Geophysical Research</title><addtitle>J. Geophys. Res</addtitle><description>We determine the scaling relationships between earthquake stress drop and recurrence interval tr that are implied by laboratory‐measured fault strength. We assume that repeating earthquakes can be simulated by stick‐slip sliding using a spring and slider block model. Simulations with static/kinetic strength, time‐dependent strength, and rate‐ and state‐variable‐dependent strength indicate that the relationship between loading velocity and recurrence interval can be adequately described by the power law VL∝trn where n≈−1. Deviations from n=−1 arise from second order effects on strength, with n>−1 corresponding to apparent time‐dependent strengthening and n<−1 corresponding to weakening. Simulations with rate and state‐variable equations show that dynamic shear stress drop Δτd scales with recurrence as dΔτd/dlntr≤σe(b‐a), where σe is the effective normal stress, μ=τ/σe, and (a‐b)=dμss/dlnV is the steady‐state slip rate dependence of strength. In addition, accounting for seismic energy radiation, we suggest that the static shear stress drop Δτs scales as dΔτs/dlntr≤σe(1 +ζ)(b‐a), where ζ is the fractional overshoot. The variation of Δτs with lntr for earthquake stress drops is somewhat larger than implied by room temperature laboratory values of ζ and b‐a. However, the uncertainty associated with the seismic data is large and the discrepancy between the seismic observations and the rate of strengthening predicted by room temperature experiments is less than an order of magnitude.</description><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Earthquakes, seismology</subject><subject>Exact sciences and technology</subject><subject>Internal geophysics</subject><issn>0148-0227</issn><issn>2156-2202</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><recordid>eNqNkE1v1DAQhi0EEqvSW39ALvREYDy24_jYlrKw6ofUj-VoOcmEmmaT7TgL7L8nZSvghDjN5XlevfMKcSDhrQR07xAAFscOADU-EzOUpsgRAZ-LGUhd5oBoX4r9lL5OIGhTaJAzcX4aeLx72IR7ytLIlFLW8LDOQt9kXagGDuPA2zz2LTFTk8V-JE4U0yrWv4T-y3iXMdXDN-LtK_GiDV2i_ae7J24_nN6cfMzPLuefTo7O8mCUNnktXWOlM621lZVElbNgldW1lRVqrRGL0gQsoXRNIxtwjirVSi2tLqAspdoTh7vcNQ8PG0qjX8VUU9eFnoZN8lg4o4uy-B9QayXNBL7ZgTUPKTG1fs1xFXjrJfjHff3f-07466fckOrQtRz6OqY_jpqeALQTp3bc99jR9p-ZfjG_OpZo1GOZfGfFNNKP31bge19MOxn_-WLuz6_fL5bLi6V36icWeZa8</recordid><startdate>20011210</startdate><enddate>20011210</enddate><creator>Beeler, N. M.</creator><creator>Hickman, S. H.</creator><creator>Wong, T.‐f.</creator><general>Blackwell Publishing Ltd</general><general>American Geophysical Union</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SM</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20011210</creationdate><title>Earthquake stress drop and laboratory-inferred interseismic strength recovery</title><author>Beeler, N. M. ; Hickman, S. H. ; Wong, T.‐f.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a5345-c19d7195f77b71eeb9707374c71b244422685a28089dd1d099eb3f14174608813</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2001</creationdate><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Earthquakes, seismology</topic><topic>Exact sciences and technology</topic><topic>Internal geophysics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Beeler, N. M.</creatorcontrib><creatorcontrib>Hickman, S. H.</creatorcontrib><creatorcontrib>Wong, T.‐f.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Earthquake Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of Geophysical Research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Beeler, N. M.</au><au>Hickman, S. H.</au><au>Wong, T.‐f.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Earthquake stress drop and laboratory-inferred interseismic strength recovery</atitle><jtitle>Journal of Geophysical Research</jtitle><addtitle>J. Geophys. Res</addtitle><date>2001-12-10</date><risdate>2001</risdate><volume>106</volume><issue>B12</issue><spage>30701</spage><epage>30713</epage><pages>30701-30713</pages><issn>0148-0227</issn><eissn>2156-2202</eissn><abstract>We determine the scaling relationships between earthquake stress drop and recurrence interval tr that are implied by laboratory‐measured fault strength. We assume that repeating earthquakes can be simulated by stick‐slip sliding using a spring and slider block model. Simulations with static/kinetic strength, time‐dependent strength, and rate‐ and state‐variable‐dependent strength indicate that the relationship between loading velocity and recurrence interval can be adequately described by the power law VL∝trn where n≈−1. Deviations from n=−1 arise from second order effects on strength, with n>−1 corresponding to apparent time‐dependent strengthening and n<−1 corresponding to weakening. Simulations with rate and state‐variable equations show that dynamic shear stress drop Δτd scales with recurrence as dΔτd/dlntr≤σe(b‐a), where σe is the effective normal stress, μ=τ/σe, and (a‐b)=dμss/dlnV is the steady‐state slip rate dependence of strength. In addition, accounting for seismic energy radiation, we suggest that the static shear stress drop Δτs scales as dΔτs/dlntr≤σe(1 +ζ)(b‐a), where ζ is the fractional overshoot. The variation of Δτs with lntr for earthquake stress drops is somewhat larger than implied by room temperature laboratory values of ζ and b‐a. However, the uncertainty associated with the seismic data is large and the discrepancy between the seismic observations and the rate of strengthening predicted by room temperature experiments is less than an order of magnitude.</abstract><cop>Washington, DC</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1029/2000JB900242</doi><tpages>13</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Journal of Geophysical Research, 2001-12, Vol.106 (B12), p.30701-30713 |
| issn | 0148-0227 2156-2202 |
| language | eng |
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| source | Wiley Online Library; Wiley-Blackwell AGU Digital Archive; Alma/SFX Local Collection; Wiley Blackwell Journals |
| subjects | Earth sciences Earth, ocean, space Earthquakes, seismology Exact sciences and technology Internal geophysics |
| title | Earthquake stress drop and laboratory-inferred interseismic strength recovery |
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