A fire in Warehouse 12 at the Port of Beirut ignited roughly 2,750 tonnes of ammonium nitrate that had been stored, improperly and without effective action, for six years. The resulting blast was among the most powerful non-nuclear explosions ever recorded in an urban area.
About 220 people were killed, over 6,000 injured and an estimated 300,000 left homeless. The shockwave shattered windows kilometres away and was recorded seismically as equivalent to a magnitude 3.3 earthquake.
Multiple officials had been warned in writing about the danger. The explosion became a symbol of institutional collapse in Lebanon and a case study in the catastrophic potential of poorly regulated bulk chemical storage in ports.
Why this event still matters
Historical incidents shape the rules that protect people today — building codes, evacuation policy, warning systems and inspection regimes almost always trace back to a specific disaster. Studying Beirut Port Explosion alongside current events is how preparedness improves.
See what is happening right now on the live world incident map, browse every explosions we track on the Explosion tracker, or follow live incidents in Lebanon.