Major Earthquakes in W. CanadaOctober 28th, 2012 at 3:58 am by Bill Steffen under Bill's Blog, Weather
A 7.7 magnitude earthquake struck the Queen Charlotte Islands at 11:14 PM EDT Saturday evening. There was a strong 6.3 magnitude aftershock on Sunday. The Earthquake was felt throughout the sparsely populated islands and on the mainland. This is the strongest earthquake in this area since the 1940s. There were no immediate reports of injuries, but power was out in at least one area. There were powerful aftershocks, one measuring 5.8. A relatively small tsunami was generated, reaching approx. 6 feet at Sandspit and 1.5 feet on the north side of Langara island. A tsunami warning was issued for the North American Coast from the Alaskan Panhandle to Vancouver Island, and a two meter swell was recorded in Sandspit. The quake was felt in Prince Rupert and as far away as Kamloops. Further, another tsunami warning was issued for the state of Hawaii, especially the towns of Kahului and Hilo, Hawaii. A tsunami advisory has been issued for California and Oregon residents in Skidegate and Sandspit were evacuated to higher ground. Electricity service was interrupted in Bella Coola. There are only about 3800 people that live in the Queen Charlotte Islands, which comprise a total land area similar to Rhode Island. Here’s some pictures and maps of the islands. The weather on the islands is cool year round. Rainfall is generally heavy especially in the autumn months, when in the most exposed southwestern areas near Tasu can record daily rainfalls as high as 6-12 inches! The annual rainfalls are among the highest in the world outside the tropics. In the relatively shielded areas around Tlell and Sandspit annual rainfall averages from 47 – 55 in). Snowfall is generally moderate, averaging from 4 in on the SW coast to 70 centimetres (28 in), tho over 100″ on the highest mountains. Precipitation is typically extremely frequent, occurring on around two-thirds of all days of the year, even in shielded areas, and direct sunlight is scarce, averaging around 3 -4 hours day or 25-33%. Prince Rupert to the east on the mainland goes from an average high temperature of 40 in mid-January to an average high temperature of 62 in early August. They haven’t been warmer than 68 this year. Once in a while the Arctic air comes in from the east. Last Jan. 17th they had a high/low of 6/-4F. It would not have been that cold out on the Queen Charlotte Islands. I’m amazed how fast articles on earthquakes and hurricanes appear on Wikipedia.