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Magnitude 4.1 earthquake hits East of Esterhazy approx 170km from Brandon

Posted by Adam in Local Weather, 8/16, 11:18 AM

A rare Saskatchewan earthquake was reported last night 17km East of the community of Esterhazy, Saskatchewan at approximately 9:30pm Manitoba time. No injuries have been reported in conjunction in the area which includes a potash mine, though CBC is reporting of power outages last night stretching into the Whitewood and Moosomin area. 

Data from the United Stated Geological Survey rates the quake at 4.1 in magnitude at a depth of 5km. Via the same service, for a wider perspective 49 quakes have been registered worldwide over the past 24 hours with magnitude of greater than 2.5 within with the one in question being the 12th strongest. 

The USGS maintains a “did you feel it” feature on each registered quake and thus far there have been reports of it being felt as far away as the Moosomin area, over 60km away from the epicentre. 

Being a prairie flatlander I’ll admit to being a novice on the topic, though in reviewing other recent quakes around similar magnitude it doesnt look to be out of the realm of possibility for weak effects to be noted more than 100km away. That would place it comfortably within the Western Manitoba area covered by this site. 

The largest ever earthquake on record in Saskatchewan was 1909’s Northern Great Plains Earthquake, a magnitude 5.5 event near the Saskatchewan-Montana border. The Esterhazy area has been known to have quakes in the past, most recently one of magnitude 3.8 in September of 2016. Though not confirmed as the source of last night’s event, generally speaking according to information published by Natural Resources Canada quakes relating to potash activity in Southern Saskatchewan have been known to occur.

There are currently no registered reports shown on the Manitoba side of the border where communities such as Russell and Binscarth sit less than 70km away. Brandon is approximately 170km away as the crow flies. 

Photo: USGS

Updated: Aug 16, 12:36pm. Added historical info, updated 24 hour Earthquake data

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