I would agree. It also caused church-bells in Boston to ring.
It depends on the size/shape/type of the localized earth mantle or tectonic plate I guess. It would also depend on the type of movement that occurs too, sublimation (I believe to be the term when one plate slips under another) or just a simple slippage along a fult.
This quake and the New Madrid quake are amazing events.
Depending on the source, there were 3 or 4 major New Madrid quakes, with 3 being near or at magnitude 8.0, and, it would seem, the last big one possibly being the greatest. There were also thousands of other “aftershocks”, and I believe I read somewhere that the ground was in motion nearly continually for about a month. The geology in this region also helps transmit the waves efficiently — check out the map showing damage areas in the excellent article on Wikipedia:
http://en.wikipedia.org/wiki/New_Madrid_Earthquake
(Lots more links there too...)
Depending on the source, there were 3 or 4 major New Madrid quakes, with 3 being near or at magnitude 8.0, and, it would seem, the last big one possibly being the greatest. There were also thousands of other “aftershocks”, and I believe I read somewhere that the ground was in motion nearly continually for about a month. The geology in this region also helps transmit the waves efficiently — check out the map showing damage areas in the excellent article on Wikipedia:
http://en.wikipedia.org/wiki/New_Madrid_Earthquake
(Lots more links there too...)
Hmmm... I have no idea why that double posted...
BTW, while I may be discussing the New Madrid earthquakes from a sort of scientific / objective comparison standpoint, there is no comparison in terms of the human death & suffering. We will have our turn though — Memphis and St. Louis are looking down the barrel of a loaded gun. (I know - I live in the area.) So, anyone who is not compassionate toward the people of China had better get a grip & remember it IS going to happen here, too.