What happened

A strong explosion was reported inside ENAP's Aconcagua refinery in Concón. ENAP activated its contingency plan, isolated the affected unit and said there were no injuries or environmental impacts; the remainder of the refinery continued operating and the company said fuel supply was not at risk. A local environmental organization identified the affected equipment as part of the refinery's diesel-producing MHC unit and called for a detailed investigation. Public reporting reviewed here did not establish a final cause or document sustained production loss.

When cited sources give different casualty, damage or spill figures for this event, they’re reported side by side above rather than merged into one number. See how confidence levels work.