2.5 M Earthquake Off Olcott In Lake Ontario

Follows smaller similar quake Friday near Port Colborne

July 11, 2017 - 10:44 am
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 The US Geologic Survey reports an 2.5 magnitude earthquake near 2:30 this morning, approximately 8.6 miles from Olcott, 3.1 miles deep in Lake Ontario.

The tremor was relatively minor, and initially triggered only one "felt report" sent to the USGS website.  Four others were eventually filed by 11 am, all in Newfane, Niagara County

Under the USGS classification system  (below) that's considered a weak quake, just one category above not felt at all.

"These earthquakes are common, as we can see more common than thought," says Mark Castner, director of the Riddick-Braun Seismograph station at Canisius College. "They're not the kind of earthquake that will do any damage."

The earthquake follows a similar smaller 2.1 magnitude quake on Friday, off Lake Erie near Port Colborne, but Castner is quick to say that we are not on the way to experiencing anything similar to what they see far more often in places like California.

"It's always tempting to say that when earthquakes occur close in time and close in proximity that one caused the other, and that's very hard to establish. That might be true, but in this case, in the kinds of earthquakes we have here in Western New York, most of them are rebounds from the Ice Age or they may be related to an ancient ancient fault that pretty much died millions of millions of years ago but still causes these little earthquakes."

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