Happened to see notice of fairly strong earthquakes near Fiji and Peru within the past few days, and thought I'd find they had been fairly damaging... only to find the impacts were quite minimal. Have to think maybe that relates to the depths they occurred at (563 km and 610 km)?
However, I'm naively not sure I've ever seen such deep ones reported where they apparently didn't cause much shaking. I figure that may well be just because such earthquakes having minimal impacts simply weren't as publicized in the past??
But, not knowing nearly enough about the differences in earthquake types and patterns, I'd be interested to know:
- Were the minimal impacts indeed a consequence of the depths of the earthquakes?
- Are such strong earthquakes at those depths expected at fairly similar regularity to similar earthquakes at shallower depths?