Preliminary earthquake focal mechanism forecasts for the Amatrice sequence (central Italy)

Pamela Roselli, Maria Teresa Mariucci

Abstract


We place the Amatrice (central Italy) seismic sequence and the related epicentral area in a contest of Probabilistic Seismic Hazard Analysis (PSHA). We apply a procedure to compute the probability to observe in the future a normal, reverse or strike-slip event and the average distribution of the P, T and N axes. This is a fundamental step to reduce the uncertainty connected to the Ground Motion Prediction Equation models, part of PSHA. For this purpose we use a significant focal mechanism catalogue and the latest present-day stress field data release for Italy to produce forecasted information that we compare with the equivalent data observed during the sequence.


Keywords


Amatrice; Seismology

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References


DOI: https://doi.org/10.4401/ag-7306
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Published by INGV, Istituto Nazionale di Geofisica e Vulcanologia - ISSN: 2037-416X