Q.1
What’s the Cascadia Subduction Zone?
300-mile fault off the Oregon coast.
160-mile fault off the Washington coast to British Columbia.
600-mile-long offshore fault from N. Calif. to British Columbia.
Q.2
Large chunks of coastal land typically sink into the ocean during a big earthquake.
True.
False
Q.3
What’s the largest quake to hit Oregon in recorded history (since 1841)?
The Scotts Mills (or Spring Break) quake in the Portland metro area in 1993.
2 quakes that hit the Klamath Falls area in 1993.
The quake in 1936 near the state line between Milton-Freewater and Walla Walla.