Variations of phase velocity and gradient values of ULF geomagnetic disturbances connected with the Izu strong earthquakes

Results of study of anomaly behavior of amplitudes, phase velocities and gradients of ULF electromagnetic disturbances (<i>F</i> = 0.002 – 0.5 Hz) before and during a seismic active period are presented. Investigations were carried out in Japan (Izu and Chiba peninsulas) by two group...

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Bibliographic Details
Main Authors: V. S. Ismaguilov, Yu. A. Kopytenko, K. Hattori, M. Hayakawa
Format: Article
Language:English
Published: Copernicus Publications 2003-01-01
Series:Natural Hazards and Earth System Sciences
Online Access:http://www.nat-hazards-earth-syst-sci.net/3/211/2003/nhess-3-211-2003.pdf