Magnitude 8.3 Mw Tsunami Yes Number of casualties 52 | Max. intensity X (Extreme) Date 15 August 1918 | |
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Similar 1968 Casiguran earthquake, 1976 Moro Gulf earthquake, 2012 Visayas earthquake, 1957 Andreanof Islands e, 1990 Luzon earthquake | ||
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.
The earthquake is linked to the Cotabato Trench, which represents the surface manifestation of an active east-dipping subduction zone located beneath Mindanao.
References
1918 Celebes Sea earthquake Wikipedia(Text) CC BY-SA