The high-frequency magnitude (m3Hz) of Italian earthquakes from intensity data – the ICEM Catalog
Stefano Parolai, Daniele Spallarossa, Matteo Picozzi, Rouhollah Amiri Fard, Adrien Oth, Dino Bindi, Andrea Rovida · 2026
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Description
Stefano Parolai and colleagues built a new earthquake catalogue for Italy that captures shaking energy better than the standard magnitude. Moment magnitude measures the static size of a rupture, but it misses how violently the fault actually moved. Their 2026 data paper applies a high-frequency magnitude, m3Hz, derived from ground motion above the source's corner frequency, to intensity data from the Parametric Catalogue of Italian Earthquakes.
The resulting ICEM catalogue covers 1,951 earthquakes from 1117 to 2020, each with a quality index. By complementing moment magnitude with a measure tied to rupture dynamics, the catalogue should sharpen seismic hazard estimates. The authors offer it as a resource for hazard studies that need more than a single static number per event.
Catalog record
| CREATOR | Stefano Parolai, Daniele Spallarossa, Matteo Picozzi, Rouhollah Amiri Fard, Adrien Oth, Dino Bindi, Andrea Rovida |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 36 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |