Skip to Main Content
Skip Nav Destination
GEOREF RECORD

The 1905 Calabria, southern Italy, earthquake; hypocenter location, causative process, and stress changes induced in the area of the 1908 Messina Straits earthquake

Debora Presti, Giancarlo Neri, Barbara Orecchio, Silvia Scolaro and Cristina Totaro
The 1905 Calabria, southern Italy, earthquake; hypocenter location, causative process, and stress changes induced in the area of the 1908 Messina Straits earthquake
Bulletin of the Seismological Society of America (December 2017) 107 (6): 2613-2623

Abstract

We used the Bayloc seismic location method for the nonlinear hypocenter location of the 8 September 1905 southern Calabria earthquake that several investigators identified as the strongest earthquake ever to occur in Italy, and for which quite different views exist concerning location, magnitude, and the causative process. Our offshore, 35-55-km deep location of the event, jointly with literature information concerning the same earthquake and the local structure of crust and upper mantle, leads us to suggest that the earthquake may have been generated by rupture of the bending zone of the Ionian subduction slab with a seismic event magnitude as large as 7.5. By computation of the coulomb stress change produced around the source by this earthquake, we find that it may have played a significant role in the generation of the magnitude 7.1 earthquake which struck the Messina Straits area, a few tens of kilometers south, only three years later (December 1908). The 1905 seismic dislocation occurring in the most arcuate part of the pulled-by-gravity descending slab is proposed here to have caused the 1908 earthquake by inducing positive changes of coulomb stress of the order of 0.1-0.4 MPa on the shallow normal faults of the overriding plate in the Messina Straits area.


ISSN: 0037-1106
EISSN: 1943-3573
Coden: BSSAAP
Serial Title: Bulletin of the Seismological Society of America
Serial Volume: 107
Serial Issue: 6
Title: The 1905 Calabria, southern Italy, earthquake; hypocenter location, causative process, and stress changes induced in the area of the 1908 Messina Straits earthquake
Affiliation: University of Messina, Department of Mathematics, Computer Sciences, Physics, and Earth Sciences, Messina, Italy
Pages: 2613-2623
Published: 201712
Text Language: English
Publisher: Seismological Society of America, Berkeley, CA, United States
References: 50
Accession Number: 2018-031660
Categories: SeismologySolid-earth geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. sketch maps
N38°00'00" - N39°30'00", E150°00'00" - E163°00'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute. Abstract, Copyright, Seismological Society of America. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 2018
Close Modal

or Create an Account

Close Modal
Close Modal