The USGS listing of quakes -- foreshock, main shock, aftershocks -- is astonishing. I'm at a loss for a sufficient superlative.
7.2 foreshock on Wednesday, followed by three 6.0 + quakes and dozens of 4+ and 5+ on during Wednesday-Thursday.
Friday's 8.9 main shock, a subsequent 7.1 and (so far)
twenty-five over 6.0http://earthquake.usgs.gov/earthquakes/recenteqsww/Maps/10/140_40_eqs.phpEvery one of these 6+ quakes must be taking a toll on surviving infrastructure.