After significant seismic activity occurred offshore from the B.C. coast recently, three more earthquakes took place in the region near Queen Charlotte Sound between Vancouver Island and Haida Gwaii this morning (July 5).

The first occurred at 5:51 a.m.

The U.S. Geological Survey measured it as a 4.7-magnitude quake with an epicenter at a depth of 10 kilometres (6 miles) located 326 kilometres (202 miles) south of Prince Rupert, 403 kilometres (250 miles) northwest of Campbell River, and 610 kilometres (379 miles) northwest of Victoria.

It was followed only seven minutes later by another quake, which the U.S. Geological Survey recorded as a 5.6-magnitude tremblor while Earthquakes Canada listed it as a 5.1-magnitude quake.

The epicenter for this second seismic event was at a depth of 5 kilometres (3 miles), according to the U.S. Geological Survey (Earthquakes Canada listed it at a depth of 10 kilometres), and located in the same area about 590 kilometres (367 miles) northwest of Vancouver.

About four minutes later, a third earthquake struck.

The U.S. Geological Survey reported it as a 4.6-magnitude quake with an epicentre at a depth of 10 kilometres (6 miles) located 378 kilometres (235 miles) south of Prince Rupert, 419 kilometres (261 miles) northwest of Campbell River, and 588 (366 miles) northwest of Vancouver.

According to Emergency Info B.C. and Earthquakes Canada, there is no tsunami threat and no reports of damage.

Although the region frequently experiences small earthquakes, several notable earthquakes have taken place there over the past few days.

On July 3, a 6.2-magnitude quake hit the same area, followed by a 4.0-magnitude tremblor.

In the area north of Haida Gwaii, a 3.9-magnitude quake occurred, followed by a 4.3-magnitude quake on July 4.  

Other earthquakes have taken place near Alaska, Oregon, and California over the past few days.