What's exploding now?

It's really hard to keep up.  I still don't think they ever figured out what the January 25th "loud boom" was. Maybe they never will. 

We know where this one came from. 

GARYVILLE — A huge Louisiana refinery was rocked by an explosion and fire Monday. Marathon Petroleum Corp. said six workers suffered minor injuries.

Officials later gave the all-clear sign, but it was not immediately clear what caused the morning blast at the Marathon Petroleum Corp. plant in Garyville, between New Orleans and Baton Rouge.

Six contract workers were injured, Marathon spokesperson Joe Gannon said in an emailed statement. He said three were treated at the plant and three were treated and released at a health care facility where they were taken as a precaution.