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Volume 18, issue 4 | Copyright
Nat. Hazards Earth Syst. Sci., 18, 1013-1036, 2018
https://doi.org/10.5194/nhess-18-1013-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Review article 04 Apr 2018

Review article | 04 Apr 2018

Pre-seismic anomalies from optical satellite observations: a review

Zhong-Hu Jiao1, Jing Zhao2, and Xinjian Shan1 Zhong-Hu Jiao et al.
  • 1State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration, Beijing 100029, China
  • 2Harbin Institute of Technology Shenzhen Graduate School, Shenzhen 518000, China

Abstract. Detecting various anomalies using optical satellite data prior to strong earthquakes is key to understanding and forecasting earthquake activities because of its recognition of thermal-radiation-related phenomena in seismic preparation phases. Data from satellite observations serve as a powerful tool in monitoring earthquake preparation areas at a global scale and in a nearly real-time manner. Over the past several decades, many new different data sources have been utilized in this field, and progressive anomaly detection approaches have been developed. This paper reviews the progress and development of pre-seismic anomaly detection technology in this decade. First, precursor parameters, including parameters from the top of the atmosphere, in the atmosphere, and on the Earth's surface, are stated and discussed. Second, different anomaly detection methods, which are used to extract anomalous signals that probably indicate future seismic events, are presented. Finally, certain critical problems with the current research are highlighted, and new developing trends and perspectives for future work are discussed. The development of Earth observation satellites and anomaly detection algorithms can enrich available information sources, provide advanced tools for multilevel earthquake monitoring, and improve short- and medium-term forecasting, which play a large and growing role in pre-seismic anomaly detection research.

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This paper dedicatedly reviews the progress and development of pre-seismic precursors and anomaly detection methods in this decade. Although several important problems still remain in this domain at present, developments of these two aspects can enrich available information sources, provide advanced tools for multilevel earthquake monitoring, and improve short- and medium-term forecasting, which should play a large and growing role in pre-seismic anomaly research from optical satellite data.
This paper dedicatedly reviews the progress and development of pre-seismic precursors and...
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