Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/11548
Authors: Tinti, Elisa* 
Scognamiglio, Laura* 
Michelini, Alberto* 
Cocco, Massimo* 
Title: Slip heterogeneity and directivity of the ML 6.0, 2016, Amatrice earthquake estimated with rapid finite-fault inversion
Issue Date: Oct-2016
Series/Report no.: /43 (2016)
DOI: 10.1002/2016GL071263
URI: http://hdl.handle.net/2122/11548
Subject Classification04.06. Seismology 
Abstract: On 24 August 2016 a magnitude ML 6.0 occurred in the Central Apennines (Italy) between Amatrice and Norcia causing nearly 300 fatalities. The main shock ruptured a NNW‐SSE striking, WSW dipping normal fault. We invert waveforms from 26 three‐component strong motion accelerometers, filtered between 0.02 and 0.5 Hz, within 45 km from the fault. The inferred slip distribution is heterogeneous and characterized by two shallow slip patches updip and NW from the hypocenter, respectively. The rupture history shows bilateral propagation and a relatively high rupture velocity (3.1 km/s). The imaged rupture history produced evident directivity effects both N‐NW and SE of the hypocenter, explaining near‐source peak ground motions. Fault dimensions and peak slip values are large for a moderate‐magnitude earthquake. The retrieved rupture model fits the recorded ground velocities up to 1 Hz, corroborating the effects of rupture directivity and slip heterogeneity on ground shaking and damage pattern.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
2016_Tinti_et_al-GRL.pdfKinematic model of 2016 Amatrice earthquake2.14 MBAdobe PDFView/Open
Show full item record

Page view(s)

31
Last Week
0
Last month
7
checked on Nov 11, 2018

Download(s)

8
checked on Nov 11, 2018

Google ScholarTM

Check

Altmetric