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  The source scaling and seismic productivity of slow slip transients

Passarelli, L., Selvadurai, P. A., Rivalta, E., Jónsson, S. (2021): The source scaling and seismic productivity of slow slip transients. - Science Advances, 7, 32.
https://doi.org/10.1126/sciadv.abg9718

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Item Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5007796 Version Permalink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5007796_2
Genre: Journal Article

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Passarelli, Luigi1, Author
Selvadurai, Paul Antony1, Author
Rivalta, E.2, Author              
Jónsson, Sigurjón1, Author
Affiliations:
1External Organizations, ou_persistent22              
22.1 Physics of Earthquakes and Volcanoes, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_146029              

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 Abstract: Slow slip events (SSEs) represent a slow faulting process leading to aseismic strain release often accompanied by seismic tremor or earthquake swarms. The larger SSEs last longer and are often associated with intense and energetic tremor activity, suggesting that aseismic slip controls tremor genesis. A similar pattern has been observed for SSEs that trigger earthquake swarms, although no comparative studies exist on the source parameters of SSEs and tremor or earthquake swarms. We analyze the source scaling of SSEs and associated tremor- or swarm-like seismicity through our newly compiled dataset. We find a correlation between the aseismic and seismic moment release indicating that the shallower SSEs produce larger seismic moment release than deeper SSEs. The scaling may arise from the heterogeneous frictional and rheological properties of faults prone to SSEs and is mainly controlled by temperature. Our results indicate that similar physical phenomena govern tremor and earthquake swarms during SSEs.

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 Dates: 2021-08-042021
 Publication Status: Finally published
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 Identifiers: DOI: 10.1126/sciadv.abg9718
GFZPOF: p4 T3 Restless Earth
OATYPE: Gold Open Access
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Title: Science Advances
Source Genre: Journal, SCI, Scopus, oa
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Pages: - Volume / Issue: 7 (32) Sequence Number: - Start / End Page: - Identifier: CoNE: https://gfzpublic.gfz-potsdam.de/cone/journals/resource/161027
Publisher: American Association for the Advancement of Science (AAAS)