Citation

Bose M, Sourabh B. Disaster Adv. 2013; 6(4): 22-29.

Copyright

(Copyright © 2013, Shankar Gargh)

DOI

unavailable

PMID

unavailable

Abstract

The connection between solar influence in 11-year scale with extreme events like earthquakes and tsunamis at decadal variability is confirmed by the spectral analysis. A significant signal in decadal scale is obtained for tsunami events for three centuries but weak signal is obtained for earthquakes at the same time scale. The earthquake variability at decadal scale is prominent for 100 year period (1902-2002) at most excepted seismic strength range. The number of earthquakes is distributed over different regions as a function of magnitude of the earthquake. The selected time period and strength of the earthquake contribute to explain the two peaks around sunspot maximum and support well with the proposed mechanism which states that the energy from the sun gets transferred down to earth triggering earth tectonic movement.