Articles | Volume 12, issue 9
https://doi.org/10.5194/se-12-2021-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-12-2021-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
A revised image of the instrumental seismicity in the Lodi area (Po Plain, Italy)
OGS – Istituto Nazionale di Oceanografia e di Geofisica Sperimentale,
Sgonico (TS), 34010, Italy
Alessandra Schibuola
OGS – Istituto Nazionale di Oceanografia e di Geofisica Sperimentale,
Sgonico (TS), 34010, Italy
Dipartimento di Matematica e Geoscienze, Università degli Studi di
Trieste, Trieste, 34100, Italy
Maria Adelaide Romano
OGS – Istituto Nazionale di Oceanografia e di Geofisica Sperimentale,
Sgonico (TS), 34010, Italy
Marco Garbin
OGS – Istituto Nazionale di Oceanografia e di Geofisica Sperimentale,
Sgonico (TS), 34010, Italy
Mariangela Guidarelli
OGS – Istituto Nazionale di Oceanografia e di Geofisica Sperimentale,
Sgonico (TS), 34010, Italy
Denis Sandron
OGS – Istituto Nazionale di Oceanografia e di Geofisica Sperimentale,
Sgonico (TS), 34010, Italy
Enrico Priolo
OGS – Istituto Nazionale di Oceanografia e di Geofisica Sperimentale,
Sgonico (TS), 34010, Italy
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Short summary
Short summary
The Marmolada Glacier collapse (3 July 2022), one of the deadliest in the Alps, caused 11 fatalities and occurred during an anomalously warm summer. Analysis links the failure to the combined action of permafrost degradation, elevated ice temperatures, hydrostatic pressure, hydraulic jacking and reduced basal friction. No single factor alone explains the failure. The event highlights how climate-driven thermal and hydraulic factors increasingly threaten the stability of cold mountain glaciers.
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Short summary
In weakly seismic or poorly monitored areas, the uncritical use of earthquake catalogues can be misleading. This is the case for a central sector in the Po Valley, where the Northern Apennines and Southern Alps collide. We collect and reprocess the available instrumental data of about 300 earthquakes from 1951 to 2019. The seismicity is weak, deeper than expected, and far from some existing human activities carried out underground. The potential tectonic causative sources are still unknown.
In weakly seismic or poorly monitored areas, the uncritical use of earthquake catalogues can be...