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The quake's epicentre was just east of Esterhazy, Sask., about 230 kilometres northeast of Regina according to the United States Geological Survey. (USGC)

People in southern Saskatchewan and Manitoba may have felt the earth moving early Wednesday.

A mild earthquake, centred around Esterhazy, Sask., rumbled through the area at around 2:26 a.m. CT.

The quake had a preliminary magnitude of 3.3, according to Andrew Frederiksen, a seismologist at the University of Manitoba.

 

'A 3.3 is big enough to feel if you're close to the epicentre; it's not big enough to do damage.'—Andrew Frederiksen

"A 3.3 is big enough to feel if you're close to the epicentre; it's not big enough to do damage," Frederiksen said.

However, it was big enough to be felt in southwestern Manitoba, he said.

While earthquakes in Manitoba are rare, in southeast Saskatchewan there are about five a year, he said.

Part of the reason is potash mining. Several potash mines are in the Esterhazy area, which is about 225 kilometres northeast of Regina.