A perspective electric earthquake precursor observed in the Apennines

Author(s)
Language
English
Obiettivo Specifico
7T. Variazioni delle caratteristiche crostali e precursori sismici
Status
Published
JCR Journal
N/A or not JCR
Title of the book
Issue/vol(year)
1-2/47 (2006)
ISSN
0006-6729
Publisher
Istituto Nazionale di Oceanografia e di Geofisica Sperimentale - OGS, Trieste, Italy.
Pages (printed)
3-12
Issued date
March 2006
Alternative Location
URI
Subjects
Keywords
Abstract
We present the data on particular electric signals in the frequency band around 8 kHz emitted by various types of rocks that are subject to pressure and fracture in the laboratory and recorded in the surrounding air. A similar type of electric signal was recorded as an electric precursor of the earthquake with magnitude 5.0 that occurred on September 14, 2003 at 22h 42m 50s in the Tosco-Emiliano Apennines (lat. 44.22 N, long. 11.35 E). The precursor was recorded with an instrument called radio-geophone installed in an experimental station located near Cascia (PG) (lat. 42.8 N; long. 13.1E; 900 m a.s.l.).
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