http://www.indystar.com/article/20121112/NEWS/211120334/IU-earthquake-sensors-record-Indianapolis-explosion?nclick_check=1
Amici, Just look at the trees on photos: it looks really surreal ;) seems it was not conventional explosion.
Meth lab gone KaBOOM?
Seems ex-husband says a faulty furnace?
Interesting that the EQ sensors only picked up the ground blast. Worth watching :D