The August 24, 2016, Amatrice earthquake

The August 24, 2016, Amatrice earthquake (Mw 6.0): Field evidence of on-fault effects.

Mount Vettore's Fault

"The August 24, 2016, Amatrice earthquake (Mw 6.0): Field evidence of on-fault effects

Preliminary report - September 16, 2016

Immediately after the Mw 6.0 mainshock on the night of August 24, 2016, several teams of geologists from research institutes and universities reached the epicentral area in order to support the Civil Protection Department of Italy (DPC) through the characterization and mapping of earthquake environmental effects. The focus of the emergency survey was on effects related to the tectonic reactivation of the seismogenic fault (i.e. primary), as well as secondary effects mostly related to the seismic shaking (e.g. landslides, fracturing, hydrological anomalies, etc.).

A joint team of geologists from ISPRA, CNR-IGG, University of Insubria, University of Camerino, in strict contact with researchers from United Kingdom (Birkbeck and University College of London, Universities of Durham, Leeds and Sheffield) and Norway (University of Bergen), have carried out systematic field surveys in the areas surrounding the supposed surface exposure of the earthquake source, and in particular along the southern portion of the Mt. Vettore fault and the northern portion of the Laga fault.
These activities have been performed also with the objective of field validating the pattern of coseismic ground deformation from satellite monitoring (i.e., DInSAR), and to instrumentally assess by LIDAR and GPS the post-seismic evolution of the coseismic ruptures, especially along the Mt. Vettore fault. In this report we describe preliminary results and conclusions of the observations collected so far.