Earth’s outgoing longwave radiation variability prior to M ≧ 6.0 earthquakes in the Taiwan area during 2009-2016

Ching-Chou FU; Lou-Chuang Lee; Dimitar Ouzounov

Presentation information

[E] Oral

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS09] Interdisciplinary studies on pre-earthquake processes

convener:Katsumi Hattori(Department of Earth Sciences, Graduate School of Science, Chiba University), Dimitar Ouzounov(Center of Excellence in Earth Systems Modeling & Observations (CEESMO) , Schmid College of Science & Technology Chapman University, Orange, California, USA), Jann-Yenq LIU(Department of Space Science and Engineering, National Central University, Taiwan), Qinghua Huang(Peking University)

[MIS09-18] Earth’s outgoing longwave radiation variability prior to M ≧ 6.0 earthquakes in the Taiwan area during 2009-2016

★Invited Papers

*Ching-Chou FU¹, Lou-Chuang Lee¹, Dimitar Ouzounov² (1.Institute of Earth Sciences, Academia Sinica, 2.Chapman University, One University Drive, Orange, CA, USA)

Keywords:National Oceanic and Atmospheric Administration (NOAA), outgoing longwave radiation (OLR), precursor

This paper proposed an analysis method, recorded by the National Oceanic and Atmospheric Administration (NOAA) satellites data to trace variations of outgoing longwave radiation (OLR) for finding precursors of the earthquakes. The significance of these observations was explored using data sets of recent M ≧ 6 of earthquakes around Taiwan area from 2009 to 2016. It was found that precursors, was in the form of the persistent hot anomalies distributing near the epicenters, appear approximately 5 to 10 days prior to these earthquakes. We interpret that these thermal sources may originate from electromagnetic and gas emissions associated with pre-seismic processes. This study highlights the potential of OLR anomalous change in earthquake precursor studies, at least in the Taiwan region.