Makes sense, Crescent City was really hard hit by the wave from the Alaska quake in '64, and the geography's pretty much the same as it was then. There's some low elevation residential areas on the west side of Humboldt Bay, about 30 miles south of Trinidad (which appears to be the closest town to the epicenter). They'd be at risk, but we'd probably have heard something by now.
FR's tubebender is in Eureka, on the east side of Humboldt Bay. I'll be looking for his posts once he signs on.
FWIW, the local state college radio station is still broadcasting usual programming, so it's probably another one of those 'strong shakers' that north-coast folks get used to. There's several faults just off the coast, plus a point where the plate that's drifting south meets the one moving north, so "7 plusses" aren't terribly unusual up there.
TB's been over on the other thread. He never lost power.