Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/1556
AuthorsVargemezis, G.* 
Zlotnicki, J.* 
Tsokas, G.* 
Papazachos, B. C.* 
Papadimitriou, E. E.* 
TitleMonitoring of the geomagnetic and geoelectric field in two regions of Greece for the detection of earthquake precursors
Issue DateMar-1997
Series/Report no.40/2
URIhttp://hdl.handle.net/2122/1556
Keywordstelluric
earthquake precursors
Subject Classification04. Solid Earth::04.05. Geomagnetism::04.05.05. Main geomagnetic field 
04. Solid Earth::04.06. Seismology::04.06.02. Earthquake interactions and probability 
AbstractTwo magnetotelluric stations have been installed in the South-Eastern Thessaly basin (Central Greece), which have recorded the geomagnetic and geoelectric fields since 1993. The aim is to detect long lasting abnormal changes of the geoelectric field which may be due to impending earthquakes. The geoelectric recordings were checked against the climatic changes such as temperature changes and precipitation and no correlation was observed. Ten anomalies were observed with characteristics similar to seismoelectric signals which have been reported in the literature and thus we can assume that these changes constitute precursory phenomena. The duration of these signals varies from several days to a few weeks. Some of them keep on developing until the occurrence of an earthquake, and others appear like transient changes several days before. The high seismicity of the area where the stations are located creates difficulties in the correlation of the signals with certain shocks.
Appears in Collections:Annals of Geophysics

Files in This Item:
File Description SizeFormat 
15 vargemezis.pdf2.59 MBAdobe PDFView/Open
Show full item record

Page view(s)

68
checked on Apr 23, 2017

Download(s)

45
checked on Apr 23, 2017

Google ScholarTM

Check