Nearly 40 years ago I was standing on the western shore of Lake Cayuga NY. I watched the shore line recede 60 feet away from me.
Many years later I pieced together that at that moment there had been an earthquake in China that killed countless thousands.

BY THE WAY ...Right after the Sumatra earthquake, Yosemite Park had an earthquake of 3.4


I wonder how Arthur C Clark is doing since he lives in Sri Lanka.