A new seismicity catalogue of the eastern Alps using the temporary Swath-D network

We present a new, consistently processed seismicity catalogue for the eastern and southern Alps based on the temporary dense Swath-D monitoring network. The final catalogue contains 6053 earthquakes for the time period 2017-2019 and has a magnitude of completeness of -1.0 M.sub.L . The smallest dete...

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Bibliographic Details
Published inSolid earth (Göttingen) Vol. 14; no. 10; pp. 1053 - 1066
Main Authors Hofman, Laurens Jan, Kummerow, Jörn, Cesca, Simone
Format Journal Article
LanguageEnglish
Published Gottingen Copernicus GmbH 10.10.2023
Copernicus Publications
Subjects
Catalogues
Collaboration
Earth science
Earthquakes
Graphics
Graphics processing units
Orogeny
Seismic activity
Seismicity
Tectonics
Template matching
Three dimensional models
Waveforms
Workflow
Alps
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Summary:We present a new, consistently processed seismicity catalogue for the eastern and southern Alps based on the temporary dense Swath-D monitoring network. The final catalogue contains 6053 earthquakes for the time period 2017-2019 and has a magnitude of completeness of -1.0 M.sub.L . The smallest detected and located events have a magnitude of -1.7 M.sub.L . Aimed at the low to moderate seismicity in the study region, we have developed a multi-stage, mostly automatic workflow that combines a priori information from local catalogues and waveform-based event detection, subsequent efficient GPU-based (GPU: graphics processing unit) event search by template matching, P and S arrival time pick refinement, and location in a regional 3-D velocity model.
ISSN:1869-9529
1869-9510
1869-9529
DOI:10.5194/se-14-1053-2023