Articles | Volume 4, issue 3
Nat. Hazards Earth Syst. Sci., 4, 359–374, 2004
https://doi.org/10.5194/nhess-4-359-2004
Nat. Hazards Earth Syst. Sci., 4, 359–374, 2004
https://doi.org/10.5194/nhess-4-359-2004

  28 May 2004

28 May 2004

Wavelet maxima curves of surface latent heat flux associated with two recent Greek earthquakes

G. Cervone1, M. Kafatos1, D. Napoletani2, and R. P. Singh1,3 G. Cervone et al.
  • 1Center for Earth Observing and Space Research, School of Computational Sciences, George Mason University, Fairfax, VA 22039, USA
  • 2School of Computational Sciences, George Mason University, Fairfax, VA, 22030, USA
  • 3Department of Civil Engineering, Indian Institute of Technology, Kanpur 208 016, India

Abstract. Multi sensor data available through remote sensing satellites provide information about changes in the state of the oceans, land and atmosphere. Recent studies have shown anomalous changes in oceans, land, atmospheric and ionospheric parameters prior to earthquakes events. This paper introduces an innovative data mining technique to identify precursory signals associated with earthquakes. The proposed methodology is a multi strategy approach which employs one dimensional wavelet transformations to identify singularities in the data, and an analysis of the continuity of the wavelet maxima in time and space to identify the singularities associated with earthquakes. The proposed methodology has been employed using Surface Latent Heat Flux (SLHF) data to study the earthquakes which occurred on 14 August 2003 and on 1 March 2004 in Greece. A single prominent SLHF anomaly has been found about two weeks prior to each of the earthquakes.

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