Strong earthquakes and geomagnetic jerks: a cause-effect relationship?

Main Article Content

F. Florindo
L. Alfonsi

Abstract

Secular variation of the geomagnetic field observed at the Earth's surface has been found to undergo impulsive accelerations Gerks) lasting less than a few years. In this paper the relations between jerks and the occurrence of strong earthquakes (Ms ? 7.0) is analysed for this century , disclosing a positive correlation between the maximum number of recorded strong earthquakes and jerk occurrence. Analysing only very strong earth- quakes (Ms ? ; 8.0) the jerks seem to take pIace with a time delay of about 2-5 years with respect to earthquake occurrence. Reliable processes that could justify this intriguing correspondence are suggested.

Article Details

How to Cite
Florindo, F. and Alfonsi, L. (1995) “Strong earthquakes and geomagnetic jerks: a cause-effect relationship?”, Annals of Geophysics, 38(3-4). doi: 10.4401/ag-4107.
Section
OLD

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