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Previous, Current, and Future Trends in Research into Earthquake Precursors in Geofluids

1
Department of Palermo, INGV National Institute of Geophysics and Volcanology, Via Ugo La Malfa 153, 90146 Palermo, Italy
2
Institute of Eco-Environment and Resources, Chinese Academy of Sciences, 320 Donggang West Road, Lanzhou 730000, China
3
Key Laboratory of Petroleum Resources, Gansu Province/Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, 320 Donggang West Road, Lanzhou 730000, China
Geosciences 2020, 10(5), 189; https://doi.org/10.3390/geosciences10050189
Received: 7 April 2020 / Revised: 14 May 2020 / Accepted: 15 May 2020 / Published: 19 May 2020
(This article belongs to the Special Issue 2020: A 10 Years Journey-Advances in Geosciences)
Hazard reduction policies include seismic hazard maps based on probabilistic evaluations and the evaluation of geophysical parameters continuously recorded by instrumental networks. Over the past 25 centuries, a large amount of information about earthquake precursory phenomena has been recorded by scholars, scientific institutions, and civil defense agencies. In particular, hydrogeologic measurements and geochemical analyses have been performed in geofluids in search of possible and reliable earthquake precursors. Controlled experimental areas have been set up to investigate physical and chemical mechanisms originating possible preseismic precursory signals. The main test sites for such research are located in China, Iceland, Japan, the Russian Federation, Taiwan, and the USA. The present state of the art about the most relevant scientific achievements has been described. Future research trends and possible development paths have been identified and allow for possible improvements in policies oriented to seismic hazard reduction by geofluid monitoring. View Full-Text
Keywords: earthquake precursors; earthquake forecasting; groundwater monitoring; geofluids; seismic hazard earthquake precursors; earthquake forecasting; groundwater monitoring; geofluids; seismic hazard
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Martinelli, G. Previous, Current, and Future Trends in Research into Earthquake Precursors in Geofluids. Geosciences 2020, 10, 189.

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