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Solid Earth
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Articles | Volume 11, issue 2
Articles | Volume 11, issue 2
https://doi.org/10.5194/se-11-691-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-11-691-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 11, issue 2
Research article
 | 
30 Apr 2020
Research article |  | 30 Apr 2020

Surface deformation relating to the 2018 Lake Muir earthquake sequence, southwest Western Australia: new insight into stable continental region earthquakes

Dan J. Clark, Sarah Brennand, Gregory Brenn, Matthew C. Garthwaite, Jesse Dimech, Trevor I. Allen, and Sean Standen

Supplement

https://doi.org/10.5194/se-11-691-2020-supplement

Data sets

Lake_Muir_Solid_Earth_data Geoscience Australia https://github.com/GeoscienceAustralia/GA-neotectonics/tree/master/Lake_Muir_Solid_Earth_data

Search earthquake catalogue United States Geological Survey https://earthquake.usgs.gov/earthquakes/

Search SARA catalogue Sentinel Australasia Regional Access (SARA) hub consortium https://copernicus.nci.org.au/sara.client/#/home

POD Precise Orbit Ephemerides Sentinel-1 Quality Control https://qc.sentinel1.eo.esa.int/aux_poeorb

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Short summary
A magnitude 5.3 reverse-faulting earthquake in September 2018 near Lake Muir in southwest Western Australia was followed after 2 months by a collocated magnitude 5.2 strike-slip event. The first event produced a ~ 5 km long and up to 0.5 m high west-facing surface rupture, and the second triggered event deformed but did not rupture the surface. The earthquake sequence was the ninth to have produced surface rupture in Australia. None of these show evidence for prior Quaternary surface rupture.
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