PORT HARDY, B.C. - Four earthquakes measuring between 5 and 6 in magnitude struck Monday off the coast of Vancouver Island, the U.S. Geological Survey reports. The first quake registered 5.2 in magnitude and struck at 8:44 a.m. PST. The second quake, which measured 5.7 in magnitude, hit at 11:13 a.m. A third quake measuring 6.0 was recorded at 11:49 a.m. The fourth quake, also 6.0 in magnitude, struck at 12:56 p.m. All four quakes were centered about 100 miles west of Port Hardy, on the northern tip of Vancouver Island, and all were measured at a depth of about...