NYC Blast on 42nd street

Today there was an explosion this afternoon in NYC and so many people were worried that it was another terriost attack."A steam pipe installed in 1924 ruptured in a thunderous explosion shortly before 6 p.m. today, sending steam, water and debris shooting outward and sending clouds of smoke and dust billowing through Midtown Manhattan at the height of the evening rush. One person died of cardiac arrest, and more than 20 others were injured. The authorities ruled out any criminal activity, saying the explosion was apparently caused by a failure of antiquated infrastructure". -NY times