Satellite Thermal IR Associated with Wenchuan Earthquake in China Using Modis Data

Abstract eng:
Satellite thermal infrared (TIR) imaging data have recorded anomalies prior to major earthquakes and associations with fault systems. The purpose of this study is to verify if TIR anomalies can be found in association with known earthquakes by systematically applying remote sensing data analysis techniques to imagery recorded prior-to and immediately after large earthquakes. In this paper, MODIS satellite thermal images have been used to study the relation between thermal anomalies and seismic activity. Wenchuan earthquake was chosen as the main study area. Our research results showed that the temperature became higher 3-5 degree prior to the earthquake and the anomaly disappeared after the earthquake.

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