A compilation of potential sources for earthquakes larger than M 5.5 in Italy and surrounding areas
What’s new in DISS 3.3.1
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Compared to DISS 3.3.0 (2021)
- Major Content Updates
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- New Subduction Sources:
- ITSD003 (Sicily Eastern Arc) and ITSD004 (Sicily Central Arc) replace the older CSS ITCS006 (Sciacca-Gela) and ITCS029 (Gela-Catania). The new sources provide a more accurate representation of the interface between the allochthonous units of the Sicilian Fold and Thrust Belt and the Hyblean platform.
- New Individual Seismogenic Sources (ISS):
- ITIS149 (Pesaro offshore), linked to the 9 November 2022, Mw 5.5 earthquake off the northern Marche coast.
- Removed and Reassigned Sources:
- ITIS109 (Sequals) source, removed.
- ITCS006 (Sciacca-Gela) and ITCS029 (Gela-Catania), shifted to the subduction layer.
- New Debated Seismogenic Sources (DSS):
- Six new DSS from ITDS079 to ITDS084 were introduced primarily in northern and central Italy and the Ionian Sea.
- New Subduction Sources:
- Parameter and Characterization Improvements
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- Revised Source Parameters:
- The geometry and kinematics of six ISS and 36 CSS have been updated, including sources in the Northern Apennines and offshore regions.
- New Scaling Relations:
- Moment magnitude (Mw) scaling for crustal faults was revised using Leonard (2014); scaling for oceanic subduction was introduced using Hallen and Hayes (2017) to enhance the accuracy of magnitude estimates.
- Revised Source Parameters:
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- Structural Changes and Database Expansion
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- Subduction Layer Revisions:
- Expanded the shallower part of the Northern Apennines Arc (ITSD002), reflecting updated geological models.
- Database Growth:
- The total number of independent bibliographic references increased to 4,138 (from 4,057) and the number of unique pages of original texts to approximately 1,080 (from ~990), reflecting the addition of new data and research.
- Subduction Layer Revisions:
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- Personnel Changes
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- New Team Member:
- Rita Chiara Taccone joined the DISS Working Group, reflecting the ongoing infrastructural growth behind the database.
- New Team Member:
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Data
