Article thumbnail

Time Series Analysis of Land Surface Temperatures in 20 Earthquake Cases Worldwide

By Efthymia Pavlidou, Mark van der Meijde, Harald van der Werff and Christoph Hecker

Abstract

Earthquakes are reported to be preceded by anomalous increases in satellite-recorded thermal emissions, but published results are often contradicting and/or limited to short periods and areas around the earthquake. We apply a methodology that allows to detect subtle, localized spatio-temporal fluctuations in hyper-temporal, geostationary-based land surface temperature (LST) data. We study 10 areas worldwide, covering 20 large (Mw > 5.5) and shallow (<35 km) land-based earthquakes. We compare years and locations with and without earthquake, and we statistically evaluate our findings with respect to distance from epicentra and temporal coincidence with earthquakes. We detect anomalies throughout the duration of all datasets, at various distances from the earthquake, and in years with and without earthquake alike. We find no distinct repeated patterns in the case of earthquakes that happen in the same region in different years. We conclude that earthquakes do not have a significant effect on detected LST anomalies

Topics: land surface temperatures, earthquake precursors, thermal anomalies, Science, Q
Publisher: MDPI AG
Year: 2018
DOI identifier: 10.3390/rs11010061
OAI identifier: oai:doaj.org/article:07fc81e8bc4d49639ca55e7193628118
Journal:
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://www.mdpi.com/2072-4292/... (external link)
  • https://doaj.org/article/07fc8... (external link)
  • https://doaj.org/toc/2072-4292 (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.