Aftershocks driven by a high-pressure CO2 source at depth
- Publication type:
- Journal article
- Metadata:
-
- Autoren
- SA Miller
- C Collettini
- L Chiaraluce
- M Cocco
- M Barchi
- BJP Kaus
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000189026000040&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1038/nature02251
- eISSN
- 1476-4687
- Externe Identifier
- Clarivate Analytics Document Solution ID: 775DT
- PubMed Identifier: 14973482
- ISSN
- 0028-0836
- Ausgabe der Veröffentlichung
- 6976
- Zeitschrift
- NATURE
- Paginierung
- 724 - 727
- Datum der Veröffentlichung
- 2004
- Status
- Published
- Titel
- Aftershocks driven by a high-pressure CO<sub>2</sub> source at depth
- Sub types
- Article
- Ausgabe der Zeitschrift
- 427
Data source: Web of Science (Lite)
- Other metadata sources:
-
- Autoren
- Stephen A Miller
- Cristiano Collettini
- Lauro Chiaraluce
- Massimo Cocco
- Massimiliano Barchi
- Boris JP Kaus
- DOI
- 10.1038/nature02251
- eISSN
- 1476-4687
- ISSN
- 0028-0836
- Ausgabe der Veröffentlichung
- 6976
- Zeitschrift
- Nature
- Sprache
- en
- Paginierung
- 724 - 727
- Datum der Veröffentlichung
- 2004
- Status
- Published
- Herausgeber
- Springer Science and Business Media LLC
- Herausgeber URL
- http://dx.doi.org/10.1038/nature02251
- Datum der Datenerfassung
- 2024
- Titel
- Aftershocks driven by a high-pressure CO2 source at depth
- Ausgabe der Zeitschrift
- 427
Data source: Crossref
- Abstract
- In northern Italy in 1997, two earthquakes of magnitudes 5.7 and 6 (separated by nine hours) marked the beginning of a sequence that lasted more than 30 days, with thousands of aftershocks including four additional events with magnitudes between 5 and 6. This normal-faulting sequence is not well explained with models of elastic stress transfer, particularly the persistence of hanging-wall seismicity that included two events with magnitudes greater than 5. Here we show that this sequence may have been driven by a fluid pressure pulse generated from the coseismic release of a known deep source of trapped high-pressure carbon dioxide (CO2). We find a strong correlation between the high-pressure front and the aftershock hypocentres over a two-week period, using precise hypocentre locations and a simple model of nonlinear diffusion. The triggering amplitude (10-20 MPa) of the pressure pulse overwhelms the typical (0.1-0.2 MPa) range from stress changes in the usual stress triggering models. We propose that aftershocks of large earthquakes in such geologic environments may be driven by the coseismic release of trapped, high-pressure fluids propagating through damaged zones created by the mainshock. This may provide a link between earthquakes, aftershocks, crust/mantle degassing and earthquake-triggered large-scale fluid flow.
- Addresses
- Institute of Geophysics, Swiss Federal Institute of Technology (ETH), 8093 Zürich, Switzerland. steve.miller@erdw.ethz.ch
- Autoren
- Stephen A Miller
- Cristiano Collettini
- Lauro Chiaraluce
- Massimo Cocco
- Massimiliano Barchi
- Boris JP Kaus
- DOI
- 10.1038/nature02251
- eISSN
- 1476-4687
- Externe Identifier
- PubMed Identifier: 14973482
- Open access
- false
- ISSN
- 0028-0836
- Ausgabe der Veröffentlichung
- 6976
- Zeitschrift
- Nature
- Sprache
- eng
- Medium
- Paginierung
- 724 - 727
- Datum der Veröffentlichung
- 2004
- Status
- Published
- Datum der Datenerfassung
- 2004
- Titel
- Aftershocks driven by a high-pressure CO2 source at depth.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 427
Data source: Europe PubMed Central
- Abstract
- In northern Italy in 1997, two earthquakes of magnitudes 5.7 and 6 (separated by nine hours) marked the beginning of a sequence that lasted more than 30 days, with thousands of aftershocks including four additional events with magnitudes between 5 and 6. This normal-faulting sequence is not well explained with models of elastic stress transfer, particularly the persistence of hanging-wall seismicity that included two events with magnitudes greater than 5. Here we show that this sequence may have been driven by a fluid pressure pulse generated from the coseismic release of a known deep source of trapped high-pressure carbon dioxide (CO2). We find a strong correlation between the high-pressure front and the aftershock hypocentres over a two-week period, using precise hypocentre locations and a simple model of nonlinear diffusion. The triggering amplitude (10-20 MPa) of the pressure pulse overwhelms the typical (0.1-0.2 MPa) range from stress changes in the usual stress triggering models. We propose that aftershocks of large earthquakes in such geologic environments may be driven by the coseismic release of trapped, high-pressure fluids propagating through damaged zones created by the mainshock. This may provide a link between earthquakes, aftershocks, crust/mantle degassing and earthquake-triggered large-scale fluid flow.
- Date of acceptance
- 2003
- Autoren
- Stephen A Miller
- Cristiano Collettini
- Lauro Chiaraluce
- Massimo Cocco
- Massimiliano Barchi
- Boris JP Kaus
- Autoren-URL
- https://www.ncbi.nlm.nih.gov/pubmed/14973482
- DOI
- 10.1038/nature02251
- eISSN
- 1476-4687
- Ausgabe der Veröffentlichung
- 6976
- Zeitschrift
- Nature
- Sprache
- eng
- Country
- England
- Paginierung
- 724 - 727
- PII
- nature02251
- Datum der Veröffentlichung
- 2004
- Status
- Published
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2004
- Titel
- Aftershocks driven by a high-pressure CO2 source at depth.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 427
Data source: PubMed
- Beziehungen:
- Property of