05-22-2015, 08:34 PM
(05-22-2015, 04:15 PM)KathyKeegan Wrote: Now we're getting close to my old home. I lived on Okinawa, largest of the Ryukyus, for 3 years. When the big quake in Alaska occurred, we had some small shocks within a week. Not big, but we felt them. 5.2 today, 2 hours before this post.
This quake was 300 km from Okinawa (and Kadena air base).
Using the USGS database search, I find 696 quakes M5 and larger since 1950 within 500km of Okinawa. That's an average of 10+ per year, or one every 34 days.
There was only one quake in 1964, an M5.6 on January 6th. And none in 1965. The Alaska quake was in March. I think whatever you felt were smaller local quakes.
Nothing unusual given the tectonics of the region.
Brian