Earth-prints repository, logo   DSpace

About DSpace Software
|earth-prints home page | roma library | bologna library | catania library | milano library | napoli library | palermo library
Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/467

Authors: Albini, P.*
Pantosti, D.*
Title: The 20 and 27 April 1894 (Locris, Central Greece) Earthquake Sources through Coeval Records on Macroseismic Effects
Title of journal: Bulletin of the Seismological Society of American
Series/Report no.: 94/4 (2004)
Publisher: The Seismological Society of America
Issue Date: Aug-2004
URL: http://www.seismosoc.org/publications/bssa.html
Keywords: Locris (central Greece)
1894 earthquakes
macroseismic effects
earthquake source
Abstract: Newly retrieved coeval records on the effects of the two large earthquakes of 20 and 27 April 1894 in Locris (central Greece) have been analyzed to assess macroseismic intensities according to the European Macroseismic Scale (GrĂ¼nthal, 1998). An intensity equal or higher than 8 has been estimated at 70 different places. The two earthquakes were close in time and both focused on the same area; this asked for an interpretation free, as much as possible, from the prejudice due to the accumulative descriptions implied, for instance, by the 1894 scientists' reports. To image the earthquake sources and derive the main seismic parameters, we processed the macroseismic intensity data by using the Boxer method proposed by Gasperini et al. (1999). On the basis of this approach and our new sets of data, we obtain M 6.4 and 6.5 for the 20 and 27 April earthquakes, respectively, the latter being substantially smaller than the estimates proposed in previous works. Results obtained from the processing of macroseismic data have been tested and compared to recent geological data. Our preferred interpretation is that the 20 and 27 April 1894 earthquakes ruptured together the whole Atalanti fault. The internal structural complexity of the Atalanti fault appears to have controlled the rupture propagation: the change in strike of the fault trace along with its intersection with the Malesina fault, near Proskinas, is interpreted as a geometric barrier that is the boundary between the two individual earthquake sources. The 20 April earthquake would have ruptured between Proskinas and Skroponeri Mountain, southeast of the village of Larimna, whereas the 27 April earthquake ruptured between Proskinas and the northwest Chlomon fault zone, north of the town of Atalanti.
Appears in Collections:Manuscripts
Conference materials
04.06.03. Earthquake source and dynamics
04.04.01. Earthquake geology and paleoseismology
04.06.05. Historical seismology
Papers Published / Papers in press
Papers Published / Papers in press

Files in This Item:

File Description SizeFormatVisibility
Albini_Pantosti.PDFmain article1.97 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Share this record
Del.icio.us

Citeulike

Connotea

Facebook

Stumble it!

reddit


 

Valid XHTML 1.0! ICT Support, development & maintenance are provided by CINECA. Powered on DSpace Software. CINECA