Lucky strike: Lightning brings seismic surprise
Earthquake equipment doesn't fail, instead records complete record of event

Lightning struck this tree in Germany
causing it to explode. The signatures of the lightning and the tree
explosion were detected by a nearby seismometer.
As dark clouds rolled in from the west on a July afternoon last
year, Klaus-G. Hinzen, a seismologist at the University of Cologne in
Germany, knew a big storm was brewing. He was watching from the window
of the university's earthquake observatory in Bensberg, a small town
outside of Cologne, as lightning struck a nearby hotel. Less than a
minute later, a flash took out a tree next to the earthquake lab itself,
turning that stormy afternoon into a rare seismic experiment.
"The main experience that we seismologists have with lightning strikes is
a very bad one, because it often causes a lot of damage in the
equipment. But the equipment didn't fail this time," Hinzen told
OurAmazingPlanet. "It's a rare instance that you have a lightning strike
so close to so many different seismometers and get a complete record of
it." Hinzen's seismic equipment recorded the lightning strike and its effects in shocking detail.
MORE: http://www.msnbc.msn.com/id/47398196/ns/technology_and_science-science/#.T66l7Pmitk0
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Electronic Mail - < gawalsh@planetarium.cc >
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