Abstract
We are presenting the latest results of multi-sensor observations of short-term pre-earthquake phenomena preceding significant earthquakes. We study satellite thermal infrared radiation (OLR) anomalous signals in association with three major earthquakes, which occurred in Xinjiang province, China at different periods M7.3 of 02.12.2014; M6.2 of 08.12.2012; and M7.2 of 03.20.2008. We systematically apply multi-sensor satellite thermal data and ground temperature /humidity and estimates of the atmospheric chemical potential (ACP) parameter. Data analyses include NOAA NPOESS, the Chinese geostationary satellite FY-2D, and in-situ hourly NOAA data from the Hotan weather station. In all three cases, we detected atmospheric satellite OLR anomalies developed near the epicenter area and ACP increases (significant change for 2008 and 2014, weak for 2012) over the major Altyn Tagh fault lines within 10-20 days before the earthquake event. These findings demonstrate the occurrence and reoccurrence of transient variations of these parameters, implying their connection with the earthquake preparation process.
Highlights
The observational evidence from the last twenty years provided an extensive scientific collection of anomalous transient patterns preceding earthquakes
It is very much needed to understand the atmospheric and environmental processes associated with active tectonic faulting and significant earthquakes
This study explores the relationship between atmospheric processes and the occurrence of the significant earthquakes in Xinjiang province – M7.2 of 02.12.2014; M6.2 of 08.12.2012; M7.2 of 03.20.2008 by analyzing data from ground and satellite observations
Summary
The observational evidence from the last twenty years provided an extensive scientific collection of anomalous transient patterns preceding earthquakes. Two extended summaries of the multi-parameter approach for studying pre-earthquake processes were published recently [Ouzounov et al, 2018; Pulinets and Ouzounov, 2018]. These two volumes show the variety of parameters seismic, atmospheric, electromagnetic, and geochemical and the historical perspective of this research and are opening this topic to a broader geoscience community. This study explores the relationship between atmospheric processes and the occurrence of the significant earthquakes in Xinjiang province – M7.2 of 02.12.2014; M6.2 of 08.12.2012; M7.2 of 03.20.2008 by analyzing data from ground and satellite observations. Atmospheric temperature, relative humidity, and computed atmospheric chemical potential from ground observations This approach provides a complex view of the scale and physics of changes in the atmospheric processes related to tectonic activity. Time 6:39:28 PM 8:26:17 AM 8:10:41 AM 7:12:03 AM 6:38:59 AM 6:33:03 AM 6:47:12 PM 8:58:19 PM 1:55:43 AM 8:32:59 PM 8:08:41 AM 8:07:03 AM 3:09:23 AM 2:00:06 AM 7:14:21 PM 6:00:08 PM 5:24:43 PM 5:19:50 PM 10:14:57 AM
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