One week after an earthquake struck Alberta, a second tremblor has occurred in the central region of the province.

The quake struck at 4 a.m. MST (2 a.m. PST, with a time difference due to Daylight Savings Time) today (March 10).

Both Earthquakes Canada and the U.S. Geological Survey measured it as a 4.3-magnitude quake.

The epicentre, at a depth of 10 kilometres (6 miles), was located 41 kilometres (25 miles) north of Rocky Mountain House, 99 kilometres (62 miles) west of Red Deer, and 134 kilometres (83 miles) northeast of Edmonton.

According to Earthquakes Canada, it was lightly felt in Rocky Mountain House and Clear Water County, Alberta, there were no reports of damage and none were expected. 

The earthquake follows about one week after 4.6-magnitude quake occurred on March 4 about 19 kilometres (12 miles) west of Red Deer.

That quake prompted the Albert Energy Regulator (AER) ordered Vesta Energy Ltd. to suspend hydraulic fracturing operation at a well site, according to several news reports. The AER has also been reported to be investigating whether the quake was a result of natural seismic activity or fracking operations.

However, last week’s quake occurred in a different geographic region than the one that took place today. The AER was reported as stating that there is nothing linking today’s seismic event to any industrial activity in the area.