While B.C. was practising its earthquake safety measures with the Great British Columbia Shake Out drill today (October 15), a real earthquake struck near the most populous city of a neighbouring U.S. state this morning.

The U.S. Geological Survey measured it as a 4.2-magnitude quake that struck at 8:05 a.m. local time (7:05 a.m. Vancouver time) while the Alaska Earthquake Center reported it as a 4.1-magnitude quake.

At a depth of 19 kilometres (12 miles), it was located 21 kilometres (13 miles) southeast of Elmendorf–Richardson Air Force Base, Alaska; 24 kilometres (15 miles) southeast of Eagle River, Alaska; and 31 kilometres (19 miles) east of Anchorage.

The Pacific Tsunami Warning Centre stated there isn’t a tsunami threat from this quake.

Other recent earthquakes in the region include a 4.5-magnitude quake that struck offshore in the Gulf of Alaska at a depth of 12 kilometres (seven miles) at 3:22 a.m. local time (4;22 a.m. Vancouver time) on October 10.

The epicentre was positioned 108 kilometres (67 miles) southeast of Port Graham, Alaska; 305 kilometres (189 miles) south of Anchorage; and 320 kilometres (198 miles soutwest of Eagle River, Alaska.