Joint Inversion of High-Rate GPS and Teleseismic Observations for Rupture Process of the 23 June 2014 (M_w 7.9) Rat Islands Archipelago, Alaska, Intermediate Depth Earthquake
On 23 June 2014, a large (M_W 7.9) earthquake ruptured within the subducting Pacific plate ~100 km below the Rat Islands archipelago, Alaska. The focal mechanism indicates two possible rupture orientations: on a shallowly dipping fault plane striking perpendicular to the trench, possibly related t...
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ftcaltechauth:oai:authors.library.caltech.edu:fqqa9-d5k94 2024-10-20T14:05:08+00:00 Joint Inversion of High-Rate GPS and Teleseismic Observations for Rupture Process of the 23 June 2014 (M_w 7.9) Rat Islands Archipelago, Alaska, Intermediate Depth Earthquake Ye, Lingling Lay, Thorne Kanamori, Hiroo Freymueller, Jeffrey T. Rivera, Luis Duarte, João C. Schellart, Wouter P. 2016-10-18 https://doi.org/10.1002/9781119054146.ch7 unknown Wiley https://doi.org/10.1002/9781119054146.ch7 http://www.iris.edu/hq eprintid:91205 info:eu-repo/semantics/closedAccess Other Alaska GPS recordings joint inversion Rat Islands earthquake rupture orientations teleseismic body waves info:eu-repo/semantics/bookPart 2016 ftcaltechauth https://doi.org/10.1002/9781119054146.ch7 2024-09-25T18:46:43Z On 23 June 2014, a large (M_W 7.9) earthquake ruptured within the subducting Pacific plate ~100 km below the Rat Islands archipelago, Alaska. The focal mechanism indicates two possible rupture orientations: on a shallowly dipping fault plane striking perpendicular to the trench, possibly related to curvature of the underthrust slab or; on a steeply dipping fault plane striking parallel to the trench, possibly associated with a slab detachment process. Joint inversion of teleseismic body waves and regional highâ€rate (1Hz) GPS recordings indicate a slip zone spanning 50 km × 30 km with a maximum slip of ~11 m on the shallowly dipping plane, or a more distributed slip pattern extending upward to ~70 km, with maximum slip of ~14 m on the steeply dipping plane. The finiteâ€fault models and aftershocks do not indicate a preferred fault plane. This type of intermediateâ€depth intraslab faulting can be very damaging for populated regions above subduction zones such as Japan, Taiwan, Chile, Peru, and Indonesia. © 2016 American Geophysical Union. Published Online: 18 October 2016; Published Print: 09 August 2016. The IRIS DMS data center (http://www.iris.edu/hq/) was used to access the seismic data from Global Seismic Network and Federation of Digital Seismic Network stations. This work made use of GMT and SAC software. This work was supported by NSF grant EAR1245717 (T.L.). Book Part Archipelago Alaska Caltech Authors (California Institute of Technology) Pacific Rat Islands ENVELOPE(178.303,178.303,51.788,51.788) 149 166 |
institution |
Open Polar |
collection |
Caltech Authors (California Institute of Technology) |
op_collection_id |
ftcaltechauth |
language |
unknown |
topic |
Alaska GPS recordings joint inversion Rat Islands earthquake rupture orientations teleseismic body waves |
spellingShingle |
Alaska GPS recordings joint inversion Rat Islands earthquake rupture orientations teleseismic body waves Ye, Lingling Lay, Thorne Kanamori, Hiroo Freymueller, Jeffrey T. Rivera, Luis Joint Inversion of High-Rate GPS and Teleseismic Observations for Rupture Process of the 23 June 2014 (M_w 7.9) Rat Islands Archipelago, Alaska, Intermediate Depth Earthquake |
topic_facet |
Alaska GPS recordings joint inversion Rat Islands earthquake rupture orientations teleseismic body waves |
description |
On 23 June 2014, a large (M_W 7.9) earthquake ruptured within the subducting Pacific plate ~100 km below the Rat Islands archipelago, Alaska. The focal mechanism indicates two possible rupture orientations: on a shallowly dipping fault plane striking perpendicular to the trench, possibly related to curvature of the underthrust slab or; on a steeply dipping fault plane striking parallel to the trench, possibly associated with a slab detachment process. Joint inversion of teleseismic body waves and regional highâ€rate (1Hz) GPS recordings indicate a slip zone spanning 50 km × 30 km with a maximum slip of ~11 m on the shallowly dipping plane, or a more distributed slip pattern extending upward to ~70 km, with maximum slip of ~14 m on the steeply dipping plane. The finiteâ€fault models and aftershocks do not indicate a preferred fault plane. This type of intermediateâ€depth intraslab faulting can be very damaging for populated regions above subduction zones such as Japan, Taiwan, Chile, Peru, and Indonesia. © 2016 American Geophysical Union. Published Online: 18 October 2016; Published Print: 09 August 2016. The IRIS DMS data center (http://www.iris.edu/hq/) was used to access the seismic data from Global Seismic Network and Federation of Digital Seismic Network stations. This work made use of GMT and SAC software. This work was supported by NSF grant EAR1245717 (T.L.). |
author2 |
Duarte, João C. Schellart, Wouter P. |
format |
Book Part |
author |
Ye, Lingling Lay, Thorne Kanamori, Hiroo Freymueller, Jeffrey T. Rivera, Luis |
author_facet |
Ye, Lingling Lay, Thorne Kanamori, Hiroo Freymueller, Jeffrey T. Rivera, Luis |
author_sort |
Ye, Lingling |
title |
Joint Inversion of High-Rate GPS and Teleseismic Observations for Rupture Process of the 23 June 2014 (M_w 7.9) Rat Islands Archipelago, Alaska, Intermediate Depth Earthquake |
title_short |
Joint Inversion of High-Rate GPS and Teleseismic Observations for Rupture Process of the 23 June 2014 (M_w 7.9) Rat Islands Archipelago, Alaska, Intermediate Depth Earthquake |
title_full |
Joint Inversion of High-Rate GPS and Teleseismic Observations for Rupture Process of the 23 June 2014 (M_w 7.9) Rat Islands Archipelago, Alaska, Intermediate Depth Earthquake |
title_fullStr |
Joint Inversion of High-Rate GPS and Teleseismic Observations for Rupture Process of the 23 June 2014 (M_w 7.9) Rat Islands Archipelago, Alaska, Intermediate Depth Earthquake |
title_full_unstemmed |
Joint Inversion of High-Rate GPS and Teleseismic Observations for Rupture Process of the 23 June 2014 (M_w 7.9) Rat Islands Archipelago, Alaska, Intermediate Depth Earthquake |
title_sort |
joint inversion of high-rate gps and teleseismic observations for rupture process of the 23 june 2014 (m_w 7.9) rat islands archipelago, alaska, intermediate depth earthquake |
publisher |
Wiley |
publishDate |
2016 |
url |
https://doi.org/10.1002/9781119054146.ch7 |
long_lat |
ENVELOPE(178.303,178.303,51.788,51.788) |
geographic |
Pacific Rat Islands |
geographic_facet |
Pacific Rat Islands |
genre |
Archipelago Alaska |
genre_facet |
Archipelago Alaska |
op_relation |
https://doi.org/10.1002/9781119054146.ch7 http://www.iris.edu/hq eprintid:91205 |
op_rights |
info:eu-repo/semantics/closedAccess Other |
op_doi |
https://doi.org/10.1002/9781119054146.ch7 |
container_start_page |
149 |
op_container_end_page |
166 |
_version_ |
1813442762584883200 |