A series of strong earthquakes struck off the coast of Canada's Vancouver Island late Sunday night, with the strongest reaching magnitude 6.8.
The first, a magnitude 6.6, struck at 10:39 p.m. PDT Sunday, 135 miles southwest of Port Hardy, British Columbia. That was followed by the most powerful quake in the string, a magnitude 6.8 at 11:16 p.m. That one was located about 13 miles closer to the island.
Six minutes later, a magnitude 6.5 struck in the same general area as the first two.
A fourth, less powerful quake -- registered at magnitude 4.9 -- struck at 11:36 in the same vicinity.
Two more quakes -- magnitudes 4.3 and 4.5 -- hit the area early Monday morning.
There were no immediate reports of damage or tsunami warnings.
