Seismicity anomalies prior to the 13 December 2008, <i>M<sub>s</sub></i>=5.7 earthquake in Central Greece
This investigation has applied a recent methodology to identify seismic quiescence and seismic acceleration, prior to the occurrence of the 13 December 2008, <i>M<sub>s</sub></i>=5.7 earthquake in Central Greece. Anomalous seismic quiescence is observed around the epicentral...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2009-03-01
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| Series: | Natural Hazards and Earth System Sciences |
| Online Access: | http://www.nat-hazards-earth-syst-sci.net/9/501/2009/nhess-9-501-2009.pdf |
| Summary: | This investigation has applied a recent methodology to identify seismic quiescence and seismic acceleration, prior to the occurrence of the 13 December 2008, <i>M<sub>s</sub></i>=5.7 earthquake in Central Greece. Anomalous seismic quiescence is observed around the epicentral area almost twelve years prior to the main shock and it lasted for a period of about four and a half years. After this period an acceleration in seismic activity began and lasted until the main shock. Modeling this seismic sequence with the time-to-failure equation and with a fixed value of the exponent "<i>m</i>" equal to 0.32, shows a successful estimation of the occurrence time of the main event within a few days. The physical meaning of this particular choice of the "<i>m</i>" value is discussed. |
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| ISSN: | 1561-8633 1684-9981 |