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Enriching the GEOFON seismic catalog with automatic energy magnitude estimations

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/persons/resource/bindi

Bindi,  Dino
2.6 Seismic Hazard and Risk Dynamics, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
Geo-INQUIRE, External Organizations;

/persons/resource/rizac

Zaccarelli,  Riccardo
2.6 Seismic Hazard and Risk Dynamics, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
Geo-INQUIRE, External Organizations;

/persons/resource/strollo

Strollo,  Angelo
2.4 Seismology, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
Geo-INQUIRE, External Organizations;

Di Giacomo,  Domenico
External Organizations;
Geo-INQUIRE, External Organizations;

/persons/resource/andres

Heinloo,  Andres
2.4 Seismology, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
Geo-INQUIRE, External Organizations;

/persons/resource/pevans

Evans,  Peter
2.4 Seismology, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
Geo-INQUIRE, External Organizations;

/persons/resource/fcotton

Cotton,  Fabrice
2.6 Seismic Hazard and Risk Dynamics, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
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/persons/resource/tilmann

Tilmann,  Frederik
2.4 Seismology, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
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5025521.pdf
(Verlagsversion), 16MB

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Zitation

Bindi, D., Zaccarelli, R., Strollo, A., Di Giacomo, D., Heinloo, A., Evans, P., Cotton, F., Tilmann, F. (2024): Enriching the GEOFON seismic catalog with automatic energy magnitude estimations. - Earth System Science Data, 16, 4, 1733-1745.
https://doi.org/10.5194/essd-16-1733-2024


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5025521
Zusammenfassung
We present a seismic catalog (Bindi et al., 2024, https://doi.org/10.5880/GFZ.2.6.2023.010) including energy magnitude Me estimated from P waves recorded at teleseismic distances in the range 20° 1 98° and for depths shorter than 80 km. The catalog is built starting from the event catalog disseminated by GEOFON (GEOFOrschungsNetz), considering 6349 earthquakes with moment magnitude Mw 5 occurring between 2011 and 2023. Magnitudes are computed using 1 031 396 freely available waveforms archived in EIDA (European Integrated Data Archive) and IRIS (Incorporated Research Institutions for Seismology) repositories, retrieved through the standard International Federation of Digital Seismograph Networks (FDSN) web services (https://www.fdsn.org/webservices/, last access: March 2024). A reduced, high-quality catalog for events with Mw 5>_8 and from which stations and events with only few recordings were removed forms the basis of a detailed analysis of the residuals of individual station measurements, which are decomposed into station- and event-specific terms and a term accounting for remaining variability. The derived Me values are compared to Mw computed by GEOFON and with the Me values calculated by IRIS. Software and tools developed for downloading and processing waveforms for bulk analysis and an add-on for SeisComP for real-time assessment of Me in a monitoring context are also provided alongside the catalog. The SeisComP add-on has been part of the GEOFON routine processing since December 2021 to compute and disseminate Me for major events via the existing services.