Russell Clifton
Guru
Check out this warning.
http://dnr.alaska.gov/commis/pic/re...atens large tsunami in PWS geologists say.pdf
http://dnr.alaska.gov/commis/pic/re...atens large tsunami in PWS geologists say.pdf
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Kevin,
I don't know the area, but if there have been landslide caused mega tsunami's in the past (one recorded water making it 1700 feet vertical up the opposing forested face from a distance of 1.3 km), could that possibly affect other areas nearby? Fifty miles doesn't sound like it is far enough away (??) for something like that! Be safe.
"Submarine slope failures and tsunami hazards in coast British Columbia: Douglas Channel and Kitimat Arm." It says the scientists discovered "evidence of large submarine slope failures in southern Douglas Channel."
The research identified two slides, one estimated at 32 million cubic metres and a second of 31 million cubic metres. The report goes on to say that the discovery of an "apparently active fault presents the possibility that they may have been triggered by ground motion or surface rupture of the fault during past earthquake events."
What's worrying about the discovery is the fact that there were two recent submarine slope failures near Kitimat on Douglas Channel. The first slope failure occurred on Oct. 17, 1974, triggering a 2.4-metre tsunami at low tide. Then on April 27, 1975 there was a second slope failure near low tide on the northeast slope of the Kitimat Arm that generated an 8.2-metre tsunami. The 1975 tsunami destroyed the Northland Navigation dock near Kitimat and damaged the Haisla First Nation docks at Kitamaat Village.