Articles | Volume 26, issue 1
https://doi.org/10.5194/nhess-26-131-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-26-131-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
15 Jan 2026
Research article |
| 15 Jan 2026
| 15 Jan 2026
Paleoseismic history of the intermountain Rieti Basin (Central Apennines, Italy)
Università degli Studi dell'Insubria, Como, Italy
Anna M. Blumetti
ISPRA, Geological Survey of Italy, Roma, Italy
Valerio Comerci
ISPRA, Geological Survey of Italy, Roma, Italy
Maria F. Ferrario
Università degli Studi dell'Insubria, Como, Italy
Gilberto Binda
Università degli Studi dell'Insubria, Como, Italy
Norwegian Institute for Water Research, Oslo, Norway
Marco Caciagli
Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Bologna, Italy
Michela Colombo
Università degli Studi dell'Insubria, Como, Italy
Pio Di Manna
ISPRA, Geological Survey of Italy, Roma, Italy
Fernando Ferri
ISPRA, Geological Survey of Italy, Roma, Italy
Fiorenzo Fumanti
ISPRA, Geological Survey of Italy, Roma, Italy
Roberto Gambillara
Università degli Studi dell'Insubria, Como, Italy
Maurizio Guerra
ISPRA, Geological Survey of Italy, Roma, Italy
Luca Guerrieri
ISPRA, Geological Survey of Italy, Roma, Italy
Paolo Lorenzoni
Professional Soil Science Consultant, Rieti, Italy
Valerio Materni
Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Roma 2, Italy
Francesco Miscione
ISPRA, Geological Survey of Italy, Roma, Italy
Rosa Nappi
Istituto Nazionale di Geofisica e Vulcanologia, sezione di Napoli Osservatorio Vesuviano, Napoli, Italy
Rosella Nave
Istituto Nazionale di Geofisica e Vulcanologia, sezione di Napoli Osservatorio Vesuviano, Napoli, Italy
Kathleen Nicoll
University of Utah, Salt Lake City, Utah, USA
Alba Peiro
University of Zaragoza, Zaragoza, Spain
Marco Pizza
Università degli Studi dell'Insubria, Como, Italy
Roberto Pompili
ISPRA, Geological Survey of Italy, Roma, Italy
Luca M. Puzzilli
ISPRA, Geological Survey of Italy, Roma, Italy
Mauro Roma
ISPRA, Geological Survey of Italy, Roma, Italy
Aurora Rossi
Università degli Studi dell'Insubria, Como, Italy
Valerio Ruscito
ISPRA, Geological Survey of Italy, Roma, Italy
Vincenzo Sapia
Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Roma 2, Italy
Argelia Silva Fragoso
Università degli Studi dell'Insubria, Como, Italy
Emanuele Scaramuzzo
Università degli Studi dell'Insubria, Como, Italy
Frank Thomas
Università degli Studi dell'Insubria, Como, Italy
Giorgio Tringali
Università degli Studi dell'Insubria, Como, Italy
Stefano Urbini
Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Roma 2, Italy
Andrea Zerboni
Università degli Studi di Milano, Milan, Italy
Alessandro M. Michetti
Università degli Studi dell'Insubria, Como, Italy
Istituto Nazionale di Geofisica e Vulcanologia, sezione di Napoli Osservatorio Vesuviano, Napoli, Italy
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Short summary
The Rieti Basin in Central Italy, though surrounded by active faults, has been largely overlooked in earthquake studies. To better understand its seismic past, we dug 17 trenches and discovered evidence of 15 ancient earthquakes over the past ca. 20 000 years. The findings show that earthquakes in this area tend to cluster in time, likely due to stress shifting between nearby faults, and can reach a magnitude of 6.5.
The Rieti Basin in Central Italy, though surrounded by active faults, has been largely...
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