Physics
Scientific paper
Oct 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989pepi...57....1t&link_type=abstract
Physics of the Earth and Planetary Interiors, Volume 57, Issue 1-2, p. 1-10.
Physics
22
Scientific paper
Ground-based observations of electromagnetic precursors to large earthquakes have been reported in Japan, Iran, Chile, Greece and the Soviet Union. Ionospheric disturbances measured by Soviet satellites have been claimed to be seismic precursors. In addition, observations of very low frequency anomalies measured by GEOS satellites have been reported by French researchers.
To confirm reports of electromagnetic precursors to earthquakes, a series of low-frequency, broadband, radio-frequency receivers were deployed along the San Andreas fault system. This system of monitors has recorded electromagnetic anomalies occurring just before earthquakes between 1983 and 1986. These anomalies are of two types and are presumably caused by separate effects, both of which may be related to stress-induced changes in the crust just before fault rupture.
The first of these types of anomalies appears to be an interruption in the propagation of radio waves (radio depressions), lasting for many hours, before an earthquake. The second type is similar to those in previously published reports and consists of short-duration broadband radio emissions. Given the results reported by other researchers and the results from our own experiments, we believe that electromagnetic data may be useful as a tool for predicting earthquakes.
Daily William
Tate Joseph
No associations
LandOfFree
Evidence of electro-seismic phenomena does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Evidence of electro-seismic phenomena, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evidence of electro-seismic phenomena will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1532087