The 2013 Balochistan earthquake: An extraordinary or completely ordinary event?
The 2013 Balochistan earthquake, a predominantly strike-slip event, occurred on the arcuate Hoshab fault in the eastern Makran linking an area of mainly left-lateral shear in the east to one of shortening in the west. The difficulty of reconciling predominantly strike-slip motion with this shortenin...
Main Authors: | , , , |
---|---|
Format: | Journal article |
Language: | English |
Published: |
American Geophysical Union
2015
|
_version_ | 1797112281628147712 |
---|---|
author | Zhou, Y Elliott, JR Parsons, B Walker, RT |
author_facet | Zhou, Y Elliott, JR Parsons, B Walker, RT |
author_sort | Zhou, Y |
collection | OXFORD |
description | The 2013 Balochistan earthquake, a predominantly strike-slip event, occurred on the arcuate Hoshab fault in the eastern Makran linking an area of mainly left-lateral shear in the east to one of shortening in the west. The difficulty of reconciling predominantly strike-slip motion with this shortening has led to a wide range of unconventional kinematic and dynamic models. Here we determine the vertical component of motion on the fault using a 1 m resolution elevation model derived from postearthquake Pleiades satellite imagery. We find a constant local ratio of vertical to horizontal slip through multiple past earthquakes, suggesting the kinematic style of the Hoshab fault has remained constant throughout the late Quaternary. We also find evidence for active faulting on a series of nearby, subparallel faults, showing that failure in large, distributed and rare earthquakes is the likely method of faulting across the eastern Makran, reconciling geodetic and long-term records of strain accumulation. |
first_indexed | 2024-03-07T08:21:58Z |
format | Journal article |
id | oxford-uuid:a0d4cf0e-0679-47c9-903e-f3b9c9f7c329 |
institution | University of Oxford |
language | English |
last_indexed | 2024-03-07T08:21:58Z |
publishDate | 2015 |
publisher | American Geophysical Union |
record_format | dspace |
spelling | oxford-uuid:a0d4cf0e-0679-47c9-903e-f3b9c9f7c3292024-02-05T08:43:33ZThe 2013 Balochistan earthquake: An extraordinary or completely ordinary event?Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a0d4cf0e-0679-47c9-903e-f3b9c9f7c329EnglishSymplectic Elements at OxfordAmerican Geophysical Union2015Zhou, YElliott, JRParsons, BWalker, RTThe 2013 Balochistan earthquake, a predominantly strike-slip event, occurred on the arcuate Hoshab fault in the eastern Makran linking an area of mainly left-lateral shear in the east to one of shortening in the west. The difficulty of reconciling predominantly strike-slip motion with this shortening has led to a wide range of unconventional kinematic and dynamic models. Here we determine the vertical component of motion on the fault using a 1 m resolution elevation model derived from postearthquake Pleiades satellite imagery. We find a constant local ratio of vertical to horizontal slip through multiple past earthquakes, suggesting the kinematic style of the Hoshab fault has remained constant throughout the late Quaternary. We also find evidence for active faulting on a series of nearby, subparallel faults, showing that failure in large, distributed and rare earthquakes is the likely method of faulting across the eastern Makran, reconciling geodetic and long-term records of strain accumulation. |
spellingShingle | Zhou, Y Elliott, JR Parsons, B Walker, RT The 2013 Balochistan earthquake: An extraordinary or completely ordinary event? |
title | The 2013 Balochistan earthquake: An extraordinary or completely ordinary event? |
title_full | The 2013 Balochistan earthquake: An extraordinary or completely ordinary event? |
title_fullStr | The 2013 Balochistan earthquake: An extraordinary or completely ordinary event? |
title_full_unstemmed | The 2013 Balochistan earthquake: An extraordinary or completely ordinary event? |
title_short | The 2013 Balochistan earthquake: An extraordinary or completely ordinary event? |
title_sort | 2013 balochistan earthquake an extraordinary or completely ordinary event |
work_keys_str_mv | AT zhouy the2013balochistanearthquakeanextraordinaryorcompletelyordinaryevent AT elliottjr the2013balochistanearthquakeanextraordinaryorcompletelyordinaryevent AT parsonsb the2013balochistanearthquakeanextraordinaryorcompletelyordinaryevent AT walkerrt the2013balochistanearthquakeanextraordinaryorcompletelyordinaryevent AT zhouy 2013balochistanearthquakeanextraordinaryorcompletelyordinaryevent AT elliottjr 2013balochistanearthquakeanextraordinaryorcompletelyordinaryevent AT parsonsb 2013balochistanearthquakeanextraordinaryorcompletelyordinaryevent AT walkerrt 2013balochistanearthquakeanextraordinaryorcompletelyordinaryevent |