1918 Celebes Sea earthquake
| UTC time | 1918-08-15 12:18:21 |
|---|---|
| ISC event | 913230 |
| USGS-ANSS | ComCat |
| Local date | August 15, 1918 |
| Local time | 20:18 |
| Duration | >3 minutes |
| Magnitude | 8.3 Mw |
| Depth | 20 km (12 mi) |
| Epicenter | 5°32′17″N 123°59′38″E / 5.538°N 123.994°E |
| Max. intensity | MMI X (Extreme) |
| Tsunami | Yes |
| Landslides | Yes |
| Casualties | 52 |
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Near the Cotabato Trench, two of the largest 20th century Philippine earthquakes: the 1918 Celebes Sea earthquake (8.3 Mw) and the 1976 Moro Gulf earthquake (8.0 Mw). Also included is the recent 2002 Mindanao earthquake (7.5 Mw). The Moro Gulf, part of the Celebes Sea, is labeled for context.
The 1918 Celebes Sea earthquake occurred on August 15 at 12:18 UTC near the Moro Gulf coast of Mindanao. 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. It triggered a tsunami of up to 7 m in height and the combined effects of the earthquake and tsunami led to the deaths of 52 people.