%0 Journal Article
%T Evidence of Correlation between High Frequency Geomagnetic Variations and Seismicity in the Caribbean
%A Bladimir Moreno
%A Eric Calais
%J Open Journal of Earthquake Research
%P 30-41
%@ 2169-9631
%D 2021
%I Scientific Research Publishing
%R 10.4236/ojer.2021.102003
%X An analysis between the hourly distribution of
earthquakes in three areas of the Caribbean and the high-frequency variations
of the geomagnetic field is presented. The number of earthquakes selected for
each zone is between 10,000 and 43,000, which guarantees a statistically
significant distribution. The hourly distributions of seismicity in all areas
show a bay-shape distribution with a significant increase in the number of
earthquakes at night, from 11 PM to 5 AM. For example, in eastern Cuba 36.7% of
earthquakes occur at that time, representing 11.7% over 25% in the absence of
any time preference. Geomagnetic disturbances were compiled from several years
to be able to make a statistically significant hourly distribution of their
occurrence, being determined by sudden changes in the magnetic field at a short
period of 1 minute. In this sense, geomagnetic data were processed between the
years 2011-2016, recorded by the geostationary satellite GOES13 and the
magnetic ground station SJG in San Juan, Puerto Rico. The result shows a significant </span><span style=\"font-family:Verdana;\">correlation between hourly earthquakes
distribution and high-frequency </span><span style=\"font-family:Verdana;\">geomagnetic variations. The time-varying
conductivity response of Earth¡¯s interior also correlates with seismicity. The
theory behind this correlation could be related to the piezoelectric phenomena
and the electromagnetic force induced when the magnetic field is disturbed.
%K Caribbean Seismicity
%K Conductivity Response
%K Geomagnetic Storms
%K Hourly Earthquakes Frequency
%K Electromagnetic Induction
%K Eddy Currents
%K Geomagnetic Field
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=108596