Even as personal and political shock waves began emanating from the Sept. 11 attacks on the World Trade Center, the magnitude of the violence literally made the ground shake, as well. Seismic vibrations induced by several events that day were captured by seismometers scattered across the Northeast.
Detailed analysis of the data these instruments captured suggests that buildings surrounding the fallen twin towers probably didn't sustain structural damage from collapse-induced seismic vibrations. Nevertheless, scientists and engineers argue that inspections of the devastation in the surrounding area could lead to updated building codes that would render structures safer for their occupants.
Note: To comment, Science News subscribing members must now establish a separate login relationship with Disqus. Click the Disqus icon below, enter your e-mail and click “forgot password” to reset your password. You may also log into Disqus using Facebook, Twitter or Google.