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originally posted by: METACOMET
Interesting that these quakes are occurring at almost exactly the same Latitude as the Yellowstone caldera.
originally posted by: Barker
Our knowledge of the Cascadia Subduction Zone and the 1700 earthquake is very new. It's helpful to go back to stories like this one for better understanding. The episodic tremor and slip phenomenon is also new to scientists, so it's still poorly understood. There isn't enough of a pattern of movements over time to understand what to expect.
This writer has a number of articles I find helpful:
Pay attention to the inland volcano arc on the map.
One point that she makes in other articles is that people aren't prepared enough for what would happen in another Cascadia quake of the same magnitude. She says most people do not understand the tremendous amount of movement that would take place in such a future quake, nor how to react. Present planning seems to focus on tsunami planning, but how many would be able to enact their tsunami escape plan once the shaking is over? She also points out flaws in tsunami escape route maps, and so on.