Unit:
Κατεύθυνση Φυσική των Υλικών (ΒΑΣΙΚΗ ΦΥΣΙΚΗ)Library of the School of Science
Supervisors info:
Παναγιώτης Α.Βαρώτσος Ομ. Καθηγητής, Νικόλαος Β. Σαρλής Αναπλ. Καθηγητής, Ευθύμιος Σ. Σκορδάς Επίκ. Καθηγητής (επιβλέπων)
Original Title:
Μελέτη των διακυμάνσεων της παραμέτρου τάξης της σεισμικότητας στον Ελλαδικό χώρο
Translated title:
Study of the fluctuations of the order parameter of seismicity in Greece
Summary:
The time evolution of the fluctuation β of the order parameter of seismicity
for seven different regions that include Greece has been studied using two
seismic catalogues (from the Institute of Geodynamics of the National
Observatory of Athens, GI-NOA and from the United States Geological Survey
USGS) and for two magnitude thresholds (and ) from 01/01/2000 to 08/06/2008.
The study focused on the time periods up until six months before the
earthquakes of magnitude occur in the area in order to check if β shows
similar behavior to the one observed in Japan. The existence of possible
precursory minima, similar to those of Japan, before the occurrence of all
earthquakes of magnitude in the smaller region studied during the years
2000-2008 has been verified. Additionally, the probable coincidence between the
dates that the minima of β occur and the record dates of the relevant, where
available, SES has been checked. For the eight earthquakes for which SES
activities have been reported, coincidence has been found within fourteen days
between the dates that the local minima of β occurs and the record dates of the
relevant SES activities.
Keywords:
Earthquakes, Natural time , Order parameter
