Articles written in Journal of Earth System Science

    • Thermal anomalies detection before Saravan earthquake (April 16th, 2013, $M_{W}$ = 7.8) using time series method, satellite, and meteorological data


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      Thermal anomaly detection related to strong earthquakes is one of the earthquake precursors extensively investigated by researchers. In this research, five years (March 16th to May 16th, every year from 2009 to 2013) of Land Surface Temperature (LST) data products, obtained from satellite data (MODIS-Aqua), and meteorological data (air and soil temperature), using three-dimensional time series method, have been analyzed to characterize the thermal anomalies related to the Saravan earthquake (April 16th, 2013, $M_{w}$ = 7.8). The results indicate that the thermal anomalies were observed in the time period before and after the earthquake. In the LST time–space–temperature coordinates, the thermal anomaly pattern was seen before the Saravan earthquake. In the Kriging surfaces of the air temperature and the difference between the LST and air temperature (DT), considerable changes were seen a few days before the earthquake until a few days after it. In addition, the soil temperature time–space–temperature coordinates show changes (increase) a few days after the Saravan earthquake. Therefore, the obtained results suggest that these changes (thermal anomalies) are related to the earthquake and can be expressed as an earthquake predictor.

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