DBPapers
DOI: 10.5593/sgem2017/23/S10.019

JOINT ANALYSIS OF VARIOUS PRECURSORS OF SEISMIC EVENTS USING REMOTE SENSING DATA AT THE EXAMPLE OF EARTHQUAKE IN ITALY (24.08.2016, M6.2)

V. Bondur, M. Tsidilina, E. Gaponova, O. Voronova
Monday 11 September 2017 by Libadmin2017

References: 17th International Multidisciplinary Scientific GeoConference SGEM 2017, www.sgem.org, SGEM2017 Conference Proceedings, ISBN 978-619-7408-03-4 / ISSN 1314-2704, 29 June - 5 July, 2017, Vol. 17, Issue 23, 149-162 pp, DOI: 10.5593/sgem2017/23/S10.019

ABSTRACT

This paper presents the results of joint processing of satellite data providing record of ionospheric parameter anomalies, thermal anomalies and dynamics of lineament systems during the preparation and occurrence of a strong earthquake (M6.2, 24.08.2016, Italy). We describe the methodology for joint analysis of various geophysical parameters in monitoring of seismic areas. Based on the results of step-bystep processing of satellite data, it was demonstrated that 2 months before the seismic event, an increase in the number of regional lineament systems of the NW-SE direction began; one month before, the growth of secant lineaments began. An anomaly of outgoing long-wave radiation was recorded in the epicentral area of the earthquake; anomalies of land surface temperature were observed a week before the earthquake. Four days before the seismic event, a decrease in the ionospheric electron density was observed, and its increase was recorded the day before and immediately on the day of the earthquake. According to the obtained results, we conclude that anomalous variations of the studied geophysical fields are earthquake precursors.

Keywords: earthquakes, precursors of earthquakes, Earth remote sensing, geophysical fields, satellite monitoring