A model for earthquake swarms
A model for earthquake swarms in volcanic regions consists of the following concepts: (1) clusters of magma‐filled dikes exist within brittle volumes of the crust, (2) dikes within a cluster are systematically oriented with their long dimension in the direction of the regional greatest principal str...
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AGU
1977
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Online Access: | https://oceanrep.geomar.de/id/eprint/51975/ https://oceanrep.geomar.de/id/eprint/51975/1/Hill.pdf https://doi.org/10.1029/JB082i008p01347 |
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ftoceanrep:oai:oceanrep.geomar.de:51975 2023-05-15T16:49:25+02:00 A model for earthquake swarms Hill, David P. 1977-03-10 text https://oceanrep.geomar.de/id/eprint/51975/ https://oceanrep.geomar.de/id/eprint/51975/1/Hill.pdf https://doi.org/10.1029/JB082i008p01347 en eng AGU https://oceanrep.geomar.de/id/eprint/51975/1/Hill.pdf Hill, D. P. (1977) A model for earthquake swarms. Journal of Geophysical Research, 82 (8). pp. 1347-1352. DOI 10.1029/JB082i008p01347 <https://doi.org/10.1029/JB082i008p01347>. doi:10.1029/JB082i008p01347 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 1977 ftoceanrep https://doi.org/10.1029/JB082i008p01347 2023-04-07T15:54:48Z A model for earthquake swarms in volcanic regions consists of the following concepts: (1) clusters of magma‐filled dikes exist within brittle volumes of the crust, (2) dikes within a cluster are systematically oriented with their long dimension in the direction of the regional greatest principal stress, and (3) a sequence of shear failures (an earthquake swarm) occurs along a system of conjugate fault planes joining en echelon offset dike tips at oblique angles. This model accounts for commonly observed geometric relations between surface faulting patterns, the hypocentral distribution of swarm earthquakes, and fault plane solutions in a variety of situations. Swarm areas dominated by strike‐slip faulting, however, provide the most compelling examples of the utility of the model. Specific examples considered here include a swarm on the east rift zone of Kilauea volcano, Hawaii, and swarms in the Imperial Valley, California, and the Reykjanes Peninsula, Iceland, which represent transitional zones between spreading centers and transform faults. Article in Journal/Newspaper Iceland OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Reykjanes ENVELOPE(-22.250,-22.250,65.467,65.467) Journal of Geophysical Research 82 8 1347 1352 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
A model for earthquake swarms in volcanic regions consists of the following concepts: (1) clusters of magma‐filled dikes exist within brittle volumes of the crust, (2) dikes within a cluster are systematically oriented with their long dimension in the direction of the regional greatest principal stress, and (3) a sequence of shear failures (an earthquake swarm) occurs along a system of conjugate fault planes joining en echelon offset dike tips at oblique angles. This model accounts for commonly observed geometric relations between surface faulting patterns, the hypocentral distribution of swarm earthquakes, and fault plane solutions in a variety of situations. Swarm areas dominated by strike‐slip faulting, however, provide the most compelling examples of the utility of the model. Specific examples considered here include a swarm on the east rift zone of Kilauea volcano, Hawaii, and swarms in the Imperial Valley, California, and the Reykjanes Peninsula, Iceland, which represent transitional zones between spreading centers and transform faults. |
format |
Article in Journal/Newspaper |
author |
Hill, David P. |
spellingShingle |
Hill, David P. A model for earthquake swarms |
author_facet |
Hill, David P. |
author_sort |
Hill, David P. |
title |
A model for earthquake swarms |
title_short |
A model for earthquake swarms |
title_full |
A model for earthquake swarms |
title_fullStr |
A model for earthquake swarms |
title_full_unstemmed |
A model for earthquake swarms |
title_sort |
model for earthquake swarms |
publisher |
AGU |
publishDate |
1977 |
url |
https://oceanrep.geomar.de/id/eprint/51975/ https://oceanrep.geomar.de/id/eprint/51975/1/Hill.pdf https://doi.org/10.1029/JB082i008p01347 |
long_lat |
ENVELOPE(-22.250,-22.250,65.467,65.467) |
geographic |
Reykjanes |
geographic_facet |
Reykjanes |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
https://oceanrep.geomar.de/id/eprint/51975/1/Hill.pdf Hill, D. P. (1977) A model for earthquake swarms. Journal of Geophysical Research, 82 (8). pp. 1347-1352. DOI 10.1029/JB082i008p01347 <https://doi.org/10.1029/JB082i008p01347>. doi:10.1029/JB082i008p01347 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1029/JB082i008p01347 |
container_title |
Journal of Geophysical Research |
container_volume |
82 |
container_issue |
8 |
container_start_page |
1347 |
op_container_end_page |
1352 |
_version_ |
1766039567840837632 |