Journal cover Journal topic
Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
Nat. Hazards Earth Syst. Sci., 6, 109-114, 2006
© Author(s) 2006. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.
26 Jan 2006
Surface latent heat flux and nighttime LF anomalies prior to the Mw=8.3 Tokachi-Oki earthquake
G. Cervone1, S. Maekawa2, R. P. Singh1,3, M. Hayakawa2, M. Kafatos1, and A. Shvets4 1Center for Earth Observing and Space Research, School of Computational Sciences, George Mason University, Fairfax, VA 22039, USA
2University of Electro-Communications, 1-5-1 Chofugaoka, Chofu Tokyo 182-8585, Japan
3Department of Civil Engineering, Indian Institute of Technology, Kanpur 208 016, India
4Institute of Radiophysics and Electronics, Kharkov, Ukraine
Abstract. Surface Latent Heat Flux (SLHF) is an atmospheric parameter proportional to the evaporation from the Earth's surface. SLHF has been found to exhibit an anomalous behavior in the epicentral region prior to several coastal earthquakes. Sub-ionospheric low frequency (LF) radio sounding measurements have shown its potentiality for the short-term earthquake forecasting since the last decade. The anomalous SLHF and nighttime LF sub-ionospheric signals are found to show complementary nature associated with the large Tokachi-Oki earthquake of 25 September 2003. Such complementary nature of parameters may prove to be potential in providing early warning information about an impending earthquake.

Citation: Cervone, G., Maekawa, S., Singh, R. P., Hayakawa, M., Kafatos, M., and Shvets, A.: Surface latent heat flux and nighttime LF anomalies prior to the Mw=8.3 Tokachi-Oki earthquake, Nat. Hazards Earth Syst. Sci., 6, 109-114,, 2006.
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