Many are feared dead .. Many are injured..
Here's video from Texas..
One report said it felt like the earth shook as the blast was felt far and wide..
As many as 70 may be dead.. Hundreds injured.. and now the 2,700 people of the town of West are being told to evacuate due on fears over ammonia in the air..
The scene is reminiscent of a war zone..
It tragic.
And oddly enough it happened before.. On April 16, 1947, a fertilizer explosion destroyed a Texas town..