1918 Celebes Sea earthquake
|UTC time||1918-08-15 12:18:21|
|Local date||August 15, 1918|
|Depth||20 km (12 mi)|
|Epicenter||5°58′01″N 124°22′37″E / 5.967°N 124.377°ECoordinates: 5°58′01″N 124°22′37″E / 5.967°N 124.377°E|
|Max. intensity||X (Extreme)|
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.
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 has been associated with the Cotabato Trench, the surface expression of an active east-dipping subduction zone beneath Mindanao.
- 1897 Mindanao earthquakes
- 1976 Moro Gulf earthquake
- List of earthquakes in 1918
- List of earthquakes in the Philippines
- ^ a b c "M 8.3 - Mindanao, Philippines". United States Geological Survey. August 15, 1918. Retrieved August 27, 2017.
- ^ "Comments for the Significant Earthquake". Significant Earthquake Database. National Geophysical Data Center. Retrieved June 27, 2015.
- ^ ISC (June 27, 2015), ISC-GEM Global Instrumental Earthquake Catalogue (1900–2009), Version 2.0, International Seismological Centre
- ^ "Comments for the Tsunami Event". NGDC/WDS Tsunami Event Database. National Geophysical Data Center. Retrieved June 27, 2015.
- ^ Stewart, G.S.; Cohn, S.N. (1979). "The 1976 August 16, Mindanao , Philippine earthquake (Ms = 7.8) - evidence for a subduction zone south of Mindanao". Geophysical Journal of the Royal Astronomical Society. 57 (1): 51–65. Bibcode:1979GeoJ...57...51S. CiteSeerX 10.1.1.926.8672. doi:10.1111/j.1365-246X.1979.tb03771.x.
- The International Seismological Centre has a bibliography and/or authoritative data for this event.