Low Coseismic Shear Stress on the Tohoku-Oki Megathrust Determined from Laboratory Experiments
- Publikationstyp:
- Zeitschriftenaufsatz
- Metadaten:
-
- Autoren
- Kohtaro Ujiie
- Hanae Tanaka
- Tsubasa Saito
- Akito Tsutsumi
- James J Mori
- Jun Kameda
- Emily E Brodsky
- Frederick M Chester
- Nobuhisa Eguchi
- Sean Toczko
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000327857900041&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1126/science.1243485
- eISSN
- 1095-9203
- Externe Identifier
- Clarivate Analytics Document Solution ID: 264DT
- PubMed Identifier: 24311683
- ISSN
- 0036-8075
- Ausgabe der Veröffentlichung
- 6163
- Zeitschrift
- SCIENCE
- Paginierung
- 1211 - 1214
- Datum der Veröffentlichung
- 2013
- Status
- Published
- Titel
- Low Coseismic Shear Stress on the Tohoku-Oki Megathrust Determined from Laboratory Experiments
- Sub types
- Article
- Ausgabe der Zeitschrift
- 342
Datenquelle: Web of Science (Lite)
- Andere Metadatenquellen:
-
- Abstract
- <jats:title>Deep Drilling for Earthquake Clues</jats:title> <jats:p> The 2011 <jats:italic>M</jats:italic> <jats:sub>w</jats:sub> 9.0 Tohoku-Oki earthquake and tsunami were remarkable in many regards, including the rupturing of shallow trench sediments with huge associated slip (see the Perspective by <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6163" page="1178" related-article-type="in-this-issue" vol="342" xlink:href="10.1126/science.1246518"> <jats:bold>Wang and Kinoshita</jats:bold> </jats:related-article> ). The Japan Trench Fast Drilling Project rapid response drilling expedition sought to sample and monitor the fault zone directly through a series of boreholes. <jats:bold> Chester <jats:italic>et al.</jats:italic> </jats:bold> (p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6163" page="1208" related-article-type="in-this-issue" vol="342" xlink:href="10.1126/science.1243719">1208</jats:related-article> ) describe the structure and composition of the thin fault zone, which is predominately comprised of weak clay-rich sediments. Using these same fault-zone materials, <jats:bold> Ujiie <jats:italic>et al.</jats:italic> </jats:bold> (p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6163" page="1211" related-article-type="in-this-issue" vol="342" xlink:href="10.1126/science.1243485">1211</jats:related-article> ) performed high-velocity frictional experiments to determine the physical controls on the large slip that occurred during the earthquake. Finally, <jats:bold> Fulton <jats:italic>et al.</jats:italic> </jats:bold> (p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6163" page="1214" related-article-type="in-this-issue" vol="342" xlink:href="10.1126/science.1243641">1214</jats:related-article> ) measured in situ temperature anomalies across the fault zone for 9 months, establishing a baseline for frictional resistance and stress during and following the earthquake. </jats:p>
- Autoren
- Kohtaro Ujiie
- Hanae Tanaka
- Tsubasa Saito
- Akito Tsutsumi
- James J Mori
- Jun Kameda
- Emily E Brodsky
- Frederick M Chester
- Nobuhisa Eguchi
- Sean Toczko
- DOI
- 10.1126/science.1243485
- eISSN
- 1095-9203
- ISSN
- 0036-8075
- Ausgabe der Veröffentlichung
- 6163
- Zeitschrift
- Science
- Sprache
- en
- Paginierung
- 1211 - 1214
- Datum der Veröffentlichung
- 2013
- Status
- Published
- Herausgeber
- American Association for the Advancement of Science (AAAS)
- Herausgeber URL
- http://dx.doi.org/10.1126/science.1243485
- Datum der Datenerfassung
- 2024
- Titel
- Low Coseismic Shear Stress on the Tohoku-Oki Megathrust Determined from Laboratory Experiments
- Ausgabe der Zeitschrift
- 342
Datenquelle: Crossref
- Abstract
- Large coseismic slip was thought to be unlikely to occur on the shallow portions of plate-boundary thrusts, but the 11 March 2011 Tohoku-Oki earthquake [moment magnitude (Mw) = 9.0] produced huge displacements of ~50 meters near the Japan Trench with a resultant devastating tsunami. To investigate the mechanisms of the very large fault movements, we conducted high-velocity (1.3 meters per second) friction experiments on samples retrieved from the plate-boundary thrust associated with the earthquake. The results show a small stress drop with very low peak and steady-state shear stress. The very low shear stress can be attributed to the abundance of weak clay (smectite) and thermal pressurization effects, which can facilitate fault slip. This behavior provides an explanation for the huge shallow slip that occurred during the earthquake.
- Addresses
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan.
- Autoren
- Kohtaro Ujiie
- Hanae Tanaka
- Tsubasa Saito
- Akito Tsutsumi
- James J Mori
- Jun Kameda
- Emily E Brodsky
- Frederick M Chester
- Nobuhisa Eguchi
- Sean Toczko
- Expedition 343 and 343T Scientists
- DOI
- 10.1126/science.1243485
- eISSN
- 1095-9203
- Externe Identifier
- PubMed Identifier: 24311683
- Open access
- false
- ISSN
- 0036-8075
- Ausgabe der Veröffentlichung
- 6163
- Zeitschrift
- Science (New York, N.Y.)
- Schlüsselwörter
- Expedition 343 and 343T Scientists
- Sprache
- eng
- Medium
- Paginierung
- 1211 - 1214
- Datum der Veröffentlichung
- 2013
- Status
- Published
- Datum der Datenerfassung
- 2013
- Titel
- Low coseismic shear stress on the Tohoku-Oki megathrust determined from laboratory experiments.
- Sub types
- Research Support, Non-U.S. Gov't
- Research Support, U.S. Gov't, Non-P.H.S.
- Journal Article
- Ausgabe der Zeitschrift
- 342
Datenquelle: Europe PubMed Central
- Abstract
- Large coseismic slip was thought to be unlikely to occur on the shallow portions of plate-boundary thrusts, but the 11 March 2011 Tohoku-Oki earthquake [moment magnitude (Mw) = 9.0] produced huge displacements of ~50 meters near the Japan Trench with a resultant devastating tsunami. To investigate the mechanisms of the very large fault movements, we conducted high-velocity (1.3 meters per second) friction experiments on samples retrieved from the plate-boundary thrust associated with the earthquake. The results show a small stress drop with very low peak and steady-state shear stress. The very low shear stress can be attributed to the abundance of weak clay (smectite) and thermal pressurization effects, which can facilitate fault slip. This behavior provides an explanation for the huge shallow slip that occurred during the earthquake.
- Autoren
- Kohtaro Ujiie
- Hanae Tanaka
- Tsubasa Saito
- Akito Tsutsumi
- James J Mori
- Jun Kameda
- Emily E Brodsky
- Frederick M Chester
- Nobuhisa Eguchi
- Sean Toczko
- Expedition 343 and 343T Scientists
- Autoren-URL
- https://www.ncbi.nlm.nih.gov/pubmed/24311683
- DOI
- 10.1126/science.1243485
- eISSN
- 1095-9203
- Ausgabe der Veröffentlichung
- 6163
- Zeitschrift
- Science
- Sprache
- eng
- Country
- United States
- Paginierung
- 1211 - 1214
- PII
- 342/6163/1211
- Datum der Veröffentlichung
- 2013
- Status
- Published
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2013
- Titel
- Low coseismic shear stress on the Tohoku-Oki megathrust determined from laboratory experiments.
- Sub types
- Journal Article
- Research Support, Non-U.S. Gov't
- Research Support, U.S. Gov't, Non-P.H.S.
- Ausgabe der Zeitschrift
- 342
Datenquelle: PubMed
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