08-05-2015, 10:32 AM
We have brought this up over the last 5 years or decade. There are a ton of earthquakes around, mostly north of, Puerto Rico and Virgin Islands. Swarms have not lead to anything much in that tie. But, this week seems like even more than normal and they are scattered all over. I've always wanted to know whether this is the only (oblique) subduction zone with this behavior, but only the USA subduction zones show all M2.5 and higher: others only show 4.5 and higher, on the USGS-NEIC maps.
Chris
Chris