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Old 12-21-2007   #55 (permalink)
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Arrow Re: Piezoelectric earth

Quote:
Originally Posted by FrankM View Post
The ionosphere disturbance over an earthquake precursor can have a spread of several hundred miles and overlay multiple earthquake fault zones. As noted in the article cited in my previous post, precursors can occur and not result in a fault movement.

There are a number of sensor devices that can detect the electromagnetic emission caused by an earthquake precursor (and earthquake) but the big problem is having a real-time system that links the detectors.
Have you seen this story on possible precursor electrical signals recorded Frank? It's right up your alley.


Evidence Mounts for Electromagnetic Earthquake Precursors
Quote:
Originally Posted by wired
Evidence Mounts for Electromagnetic Earthquake Precursors
By Keay Davidson 12.14.07 | 6:00 PM
SAN FRANCISCO –- Scientists revealed data Thursday that an electromagnetic alarm might have preceded a 2007 earthquake in Northern California. The evidence could offer support to a controversial theory that mysterious and little-understood signals might offer fair warning for imminent catastrophic earthquakes.

Scientists detected the signal Oct. 30 near Milpitas, California, 19 hours before a medium-size quake -- with its epicenter in the Alum Rock neighborhood of San Jose -- shook the region, scientists told Wired News Thursday.

"Alum Rock saw a signal that didn't happen at any other site: It was a series of electromagnetic pulses that were drawn out over eight minutes," said Tom Bleier, a researcher with QuakeFinder, a Palo Alto firm. He cautioned, however, that further study is needed to determine if the electromagnetic signal has "some other cause" besides the quake. ...
Might be interesting to go back in the papers and see if anyone saw any strange lights, as well as check the missing pets report.


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