6.7 Magnitude quake hits Vancouver Island.

[Eli]

For Seattle and Portland, the quake damage will be double, not only will there be a possible magnitude 9 quake, and only 20 minutes later may come a 100 foot wall of Tsunami generated water, meaning a potentail million or so people in low lying areas will die.

Since the faults are moving 1.6 inches per year relative to each other, it means a potential 41 feet of displacement could be stored up over 311 years. As I recall, the 1906 San Franciscoe quake only had some 20 feet of displacement. And in far weaker continetal rock at shallower rock that mitigates the damage.

I could be wrong, but I don't think Portland is in danger of a tsunami. Maybe the low lying areas next to the Columbia river? But there's a 4,000' mountain range between Portland and the coast. Have there been any studies how far a tsunami would make it up the Columbia River Gorge? Is there any evidence that this has happened in the past?

Coastal communities will be obliterated though, that's for sure.

 

[silverpig]

Aw man, just after I leave too.

 

[Ichinisan]

Aw man, just after I leave too.

You need to update the location that appears underneath your avatar.

 

[DisgruntledVirus]

Look on the bright side. The Space Needle is rated for a 9.2, so it should still be around while the rest of the city is under water, demolished, or on fire.