I monitor quakes for some citizen scientists and make time lapse videos of their propagation on color spectrograms. I’ll post a link when I render this one. It was impressive, but I’m still recording aftershocks.
I was in the fourth grade when this happened, it was a sizable earthquake. I’ve been in others up in the Aleutians and out in the Western Pacific but this Seattle one I recall watching the athletic field and noting how the Earth on that field resembled waves on the ocean coming into shore.
The 1965 Puget Sound earthquake occurred at 08:28 AM PDT on April 29 within the Puget Sound region of Washington state. It had a magnitude of 6.7 on the moment magnitude scale and a maximum perceived intensity of VIII on the Mercalli intensity scale.
BFL