A massive explosion has occurred in the Chinese port city of Tianjin, with hundreds of wounded and many feared dead. The exact cause of the explosion, which caused a magnitude 2.9 seismic event, is not known but reports have varied from a shipment of explosives detonating, a cargo ship detonating and setting off nearby petrol containers, to possibly an LNG ship exploding (although I rate this as unlikely since the explosion would probably be a magnitude greater). The explosion was picked up by infra-red weather satellites in orbit, and the heat from the fires created is still displaying on some of them.
Video links of the event:
EDIT: There are reports of houses have been destroyed by the shockwave of the explosion 10km away from the blast.