1992 Mindanao earthquakes
.svg)  | |
| UTC time | 1992-05-17 09:49:19 |
|---|---|
| 1992-05-17 10:15:31 | |
| ISC event | 291773 |
| 291774 | |
| USGS-ANSS | ComCat |
| ComCat | |
| Local date | 17 May 1992 |
| 17 May 1992 | |
| Local time | 17:49 PST |
| 18:15 PST | |
| Magnitude | Mw 7.1 |
| Mw 7.2 | |
| Depth | 25.0 km (15.5 mi) |
| 30.0 km (18.6 mi) | |
| Epicenter | 7°11′28″N 126°45′43″E / 7.191°N 126.762°E |
| Type | Thrust |
| Max. intensity | RFS V (Moderate tremor) |
| Tsunami | 6 m (20 ft) |
| Casualties | 1 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.[1] 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.[2]
See also
[edit]References
[edit]- ^ 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.
- ^ 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.