Phillips disaster of 1989

On 23 October 1989 at approximately 1:05 PM Central Daylight Time, a series of explosions occurred at Phillips Petroleum Company's Houston Chemical Complex (HCC) in Pasadena, Texas, near the Houston Ship Channel. The initial blast registered 3.5 on the Richter scale, and the resulting fires took 10 hours to bring under control, as efforts to battle the fire were hindered because the blast damaged water pipes for the fire hydrants.

Source: Wikipedia — Phillips disaster of 1989 (CC BY-SA 4.0)