Dike-fault interaction during the 2004 Dallol intrusion at the northern edge of the Erta Ale Ridge (Afar, Ethiopia)
dc.contributor.author | Nobile, A. | |
dc.contributor.author | Pagli, C. | |
dc.contributor.author | Keir, D. | |
dc.contributor.author | Wright, T.J. | |
dc.contributor.author | Ayele, A. | |
dc.contributor.author | Ruch, J. | |
dc.contributor.author | Acocella, V. | |
dc.coverage.spatial | Africa - Eastern | |
dc.date | 2012 | |
dc.date.accessioned | 2016-03-15T10:05:18Z | |
dc.date.available | 2016-03-15T10:05:18Z | |
dc.identifier.uri | https://orfeo.belnet.be/handle/internal/1473 | |
dc.description | During continental rifting the interaction between faulting and magmatic intrusions is not well understood. Using InSAR and seismicity, we show that a $0.06 km 3 dike was intruded along the Dallol segment, Ethiopia and was accompanied by a Mw 5.5 earthquake and associated fault slip along the western flank of the rift. The intrusion was fed by a previously unidentified magma chamber under Dallol. The total seismic moment release was $2.3 Â 10 17 Nm,about 10% of the geodetic moment. This is a higher proportion than during the 2005 2009 Dabbahu rifting episode, which ranged between 1 4% of the geodetic moment. A larger component of faulting occurs at Dallol than at Dabbahu segment, a feature we interpret to be related to the proximity (10 km) of the Dallol segment to the rift margin, where well-developed faults facilitate slip. | |
dc.language | eng | |
dc.title | Dike-fault interaction during the 2004 Dallol intrusion at the northern edge of the Erta Ale Ridge (Afar, Ethiopia) | |
dc.type | Article | |
dc.subject.frascati | Earth and related Environmental sciences | |
dc.audience | Scientific | |
dc.subject.free | Natural hazards | |
dc.source.title | GEOPHYSICAL RESEARCH LETTERS | |
Orfeo.peerreviewed | Yes | |
dc.identifier.doi | 10.1029/2012GL053152 | |
dc.identifier.rmca | 4353 |
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