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dc.contributor.authorBarrett, Sarah A.
dc.contributor.authorBeroza, Gregory C.
dc.contributor.authorPedraza, Patricia
dc.contributor.authorBlanco, Jose Faustino
dc.contributor.authorPoveda, Esteban
dc.contributor.authorPrieto Gomez, German A.
dc.contributor.authorFlorez Torres, Manuel A.
dc.date.accessioned2015-07-28T14:14:29Z
dc.date.available2015-07-28T14:14:29Z
dc.date.issued2013-12
dc.date.submitted2013-11
dc.identifier.issn00948276
dc.identifier.urihttp://hdl.handle.net/1721.1/97899
dc.description.abstractIntermediate-depth earthquakes occur at depths where temperatures and pressures exceed those at which brittle failure is expected. There are two leading candidates for the physical mechanism behind these earthquakes: dehydration embrittlement and self-localizing thermal shear runaway. A complete energy budget for a range of earthquake sizes can help constrain whether either of these mechanisms might play a role in intermediate-depth earthquake rupture. The combination of high stress drop and low radiation efficiency that we observe for M[subscript w] 4–5 earthquakes in the Bucaramanga Nest implies a temperature increase of 600–1000°C for a centimeter-scale layer during earthquake failure. This suggests that substantial shear heating, and possibly partial melting, occurs during intermediate-depth earthquake failure. Our observations support thermal shear runaway as the mechanism for intermediate-depth earthquakes, which would help explain differences in their behavior compared to shallow earthquakes.en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (Grant EAR-1045684)en_US
dc.language.isoen_US
dc.publisherAmerican Geophysical Union (AGU)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1002/2013gl058109en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceMIT web domainen_US
dc.titleSeismic evidence for thermal runaway during intermediate-depth earthquake ruptureen_US
dc.typeArticleen_US
dc.identifier.citationPrieto, German A., Manuel Florez, Sarah A. Barrett, Gregory C. Beroza, Patricia Pedraza, Jose Faustino Blanco, and Esteban Poveda. “Seismic Evidence for Thermal Runaway During Intermediate-Depth Earthquake Rupture.” Geophysical Research Letters 40, no. 23 (December 6, 2013): 6064–6068. © 2013 American Geophysical Unionen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciencesen_US
dc.contributor.mitauthorPrieto Gomez, German A.en_US
dc.contributor.mitauthorFlorez Torres, Manuel A.en_US
dc.relation.journalGeophysical Research Lettersen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsPrieto, German A.; Florez, Manuel; Barrett, Sarah A.; Beroza, Gregory C.; Pedraza, Patricia; Blanco, Jose Faustino; Poveda, Estebanen_US
dc.identifier.orcidhttps://orcid.org/0000-0001-7087-6890
mit.licensePUBLISHER_POLICYen_US


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