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Huh? Never hear of an earthquake in Alexandria!!!
Luckily, no tsunami from the flooded Red River here in Fargo.
5.1 km (3.2 miles) deep.
Cool. My old stomping ground.
from the local newspaper web site
Did you feel it? Earthquake rattles Alexandria this morning
http://www.echopress.com/event/article/id/84314/
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Earthquakes happened in region in 1975, 1993
http://www.echopress.com/event/article/id/84320
Keith Brugger, a Professor of Geology at the University of Minnesota, Morris, said he hadn’t yet reviewed any information regarding Friday’s quake, but added that it probably was an event on the Great Lakes Tectonic Zone.
West Central Minnesota sits on a “suture,” or boundary, of the GLTZ. About 2.5 billion years ago, rocks of the Minnesota River Valley, which are 3.5 billion years old, collided with the slightly younger volcanic mass represented by granites and “greenstones,” Brugger said.
“That event happened so long ago and we’re still living with its legacy,” Brugger said.
The greenstones were volcanic island arcs — such as Japan and the Philippines — that previously collided and contributed to the formation of North America, Brugger stated.
I’ve lived in Minnesota for more than a decade and this is the first I can recall an earthquake happening here. Very, very odd.
An earthquake measured 2.5 on the Richter scale, falling into the “weak” category...
Wow, have not experienced anything like that here in Kansas, but every year, I suffer winds of velocities that do way more damage than that earth-hiccup.
I live in western Wisconsin. About ten to fifteen years ago I felt a tremor while sitting on my sofa. A lamp on an end table shook a bit. The newspeople said the New Madrid fault was responsible.
Sorry. I fell out of bed... Didn’t mean to startle anyone.
I guess I would go by the geologist’s explanation. Maybe. For being so shallow, it might be an effect due to “rebound”. The rocks are still rising after the weight from ice from the last ice age was removed. Most of the time it is gradual, but sometimes you can get a “pop” and a small E.G.
If that is the case, this earthquake was caused by global warming!
I have been to parties that have registered higher than 2.5.
Probably just Brock Lesnar’s training camp doing some sparring on his ranch.