Originally posted by castor
"The asteroid is roughly estimated to be a little more than 1,000 feet (320 meters) wide."
Regional damage, huh? Well, I don't want it anywhere close my backyard thats for sure
A 1-mile diameter rock would be something to worry about (10 mile wide crater, for one, IIRC).
This one is less than 1/5 that size. Near coastal areas, yeah, there'd probably be some major flooding and/or massive tsunamis (possibly worldwide, but I highly doubt it), but in deep ocean, probably minor effects. Over land, damage would be a bit more extensive, but nothing truly catastrophic, and nothing permament, AFAIK.