Increase in landslide activity after a low-magnitude earthquake as inferred from DInSAR interferometry.

ABSTRACT: On August 16th, 2018, a Mw 5.1 earthquake struck the Molise region (central Italy), inducing 84 earthquake-triggered landslides that predominantly involved soil covers of clayey materials and flysch on gently dipping slopes. To quantify the spatiotemporal landslide activity in the months immediately after the earthquake, a differential SAR interferometry (DInSAR) analysis was performed for a time span from 2 years before to one year after the earthquake, recognising both first-time and reactivated landslides. The results showed a clear increase in landslide activity following the low-magnitude earthquake with respect to the activities recorded in the same months of the previous years. Several coherent landslides (earth slides and earth flows) were observed following seasonally recurrent ra

SUBMITTER: Martino S 

PROVIDER: S-EPMC8854724 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature