Posted on 09/12/2001 7:57:48 PM PDT by JohnHuang2
Edited on 04/29/2004 1:58:44 AM PDT by Jim Robinson. [history]
"This is the most significant collapse of a building in history," said Art Lerner-Lam, Associate Director for geology and geophysics at Colombia University's Lamont-Doherty Observatory. "But the (seismic) impact is relatively mild."
While the Richter Scale specifically applies to earthquakes, Lerner-Lam said Lamont-Doherty seismologists calculated that both planes' impacts into the two World Trade Center towers would have registered a magnitude of 0.8.
(Excerpt) Read more at cnn.com ...
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