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1992 Mindanao earthquakes

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Earthquakes and tsunami affecting the Philippines
1992 Mindanao earthquakes
1992 Mindanao earthquakes is located in Philippines1992 Mindanao earthquakes
UTC time1992-05-17 09:49:19
 1992-05-17 10:15:31
ISC event291773
 291774
USGS-ANSSComCat
 ComCat
Local date17 May 1992 (1992-05-17)
 17 May 1992 (1992-05-17)
Local time17:49 PST
 18:15 PST
MagnitudeMw 7.1
 Mw 7.2
Depth25.0 km (15.5 mi)
 30.0 km (18.6 mi)
Epicenter7°11′28″N 126°45′43″E / 7.191°N 126.762°E / 7.191; 126.762
TypeThrust
Max. intensityRFS V (Moderate tremor)
Tsunami6 m (20 ft)
Casualties1 dead

Two earthquakes struck off the coast of Mindanao, Philippines, and generated a large tsunami on 17 May 1992. They measured 7.1 and 7.2, respectively on the moment magnitude scale and were spaced 26 minutes apart. Seismic shaking and a tsunami caused damage in Manay, Cateel, Baganga, Boston, Caraga and Tarragona, Davao Oriental Province. At a cove in Manay, the tsunami measured 6 m (20 ft) and flooded about 200 m (660 ft) inland as a result of the amplification effect. Following the first shock, many residents at the cove fled the area after the first earthquake and tsunami, however, a child was killed in the wave. Wave heights of 3 m (9.8 ft) or higher were recorded along the coast of Caraga and Manay. Residents at the coast said the tsunami arrived about 2 to 10 minutes after the first event with the first wave also the largest. Both events occurred on a fault where the Philippine Sea plate subducts beneath the island, with epicenters 20 km (12 mi) apart.

See also

References

  1. Perez, Jeffrey S.; Burgos, Leslie Neil Tana; Verano, Kim Namie; Tabigue, Milo S.; Martinez-Villegas, Ma. Mylene L. (2023). Narrative Accounts and Reconstruction of the 1992 Manay Earthquake and Tsunami. Geological Convention. Philippine Institute of Volcanology and Seismology. doi:10.13140/RG.2.2.25020.00647.
  2. Besana, G. M.; Tanioka, Y.; Ando, M.; Mirabueno, M. H.; Manahan, J.; Ocampo, J. De; Perez, J.; Perez, J.; Bautista, B. (2004). "The May 17, 1992 earthquakes in southeastern Philippines". Geophysical Research Letters. 31 (24). doi:10.1029/2004GL020917.
← Earthquakes in 1992 →
† indicates earthquake resulting in at least 30 deaths
‡ indicates the deadliest earthquake of the year
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