3.6 magnitude earthquake shakes Sudbury area April 23

The rumble that woke up dozens in Sudbury this morning was in fact an earthquake.

Earthquakes Canada confirms that a seismic event happened in the Whitefish area of Greater Sudbury just after 3 a.m., April 23.

The 3.6magnitude earthquake is believed to have been triggered by mining activity.

These kinds of earthquakes are relatively common in northern Ontario. On April 1, there was a 2.9 magnitude earthquake near Haileybury, the agency reports.