| 8.3 Mw|
| X (Extreme)|
15 August 1918
| 1968 Casiguran earthquake, 1976 Moro Gulf earthquake, 2012 Visayas earthquake, 1957 Andreanof Islands e, 1990 Luzon earthquake|1918 Celebes Sea earthquake Wikipedia
The 1918 Celebes Sea earthquake occurred on 15 August at 12:18 UTC. It had a magnitude of 8.3 on the moment magnitude scale and a maximum perceived intensity of X (Extreme) on the Mercalli intensity scale. This event in the southern Philippines triggered a large tsunami, with a maximum run-up of 7.2 m, which affected the coasts of the Celebes Sea, causing widespread damage. The combined effects of the earthquake and the tsunami caused 52 casualties.