Experts in the United States say they have no clear explanation for today's
earthquake on the north-east coast, which registered five-point-one on the
Richter Scale.
The US Geological Survey says the quake struck near the Canadian and US border
and was strong enough to cause major damage, had the area been heavily
populated.
New York State seismologist Frank Revetta says it's only 20 years
since the last reasonably strong earthquake in the north-east of the US,
but the cause of them is a mystery.
"There aren't any major fault lines here like you have with Calfornia, that the earthquakes occur along. Up here, the earthquakes are diffuse in the area and they don't line up along any particular fault."
21/04/2002 17:01:18 | ABC Radio Australia News
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