Magnitude 4.1 earthquake strikes Tofino on Tuesday afternoon

Feb 16 2021, 4:00 pm

A magnitude 4.1 earthquake has struck the coast of Vancouver Island.

According to Earthquakes Canada, the seismic event took place on Tuesday afternoon at 3:28 pm in Tofino and 340 km southwest of Port Alice.

A report has yet to be issued by the United States Geological Survey (USGS) and a statement has not yet been issued by Emergency Info BC.

Each year, the province sees thousands of earthquakes, but only a small fraction of them reach a magnitude of 3.0 and over.

An increase in an earthquake’s magnitude of even 1.0 – such as the difference between a 4.0 magnitude earthquake and 5.0 magnitude earthquake – is a tremendous difference in the power of an earthquake.

A magnitude 8.0 earthquake is 1,000 times more powerful than one of 5.0 magnitude, as a further example. If an earthquake is shallow with a 5.0 magnitude, it can still cause powerful damage when the epicentre is nearby urban areas. The impact of the quake is amplified with a shallow depth.