Curacoa (volcano)
| Curacoa | ||
|---|---|---|
| height | 33 m below sea level | |
| location | Tonga | |
| Coordinates | 15 ° 37 ′ 12 ″ S , 173 ° 40 ′ 12 ″ W | |
|
||
| Type | Submarine volcano | |
| rock | Dazit | |
| Last eruption | May 1979 | |
The Curacoa is a submarine volcano of the northern end Tofua - island arc leading to the northern Tonga belongs Islands.
The volcano was first noticed during an eruption in 1973 . Explosive eruptions were observed from the island of Tafahi , located 27 km south-south-west, and produced extensive Dazite pumice rafts. The location of the eruption was about 6.5 km southwest of the Curacoa reef . Obviously there are several undersea chimneys in this area. The pumice rafts covered an area of more than 100 km² and were encountered by ships about 200 km further west two weeks after the eruption began.
A second eruption was observed about eight miles north of Tafahi in 1979. Thick black smoke rose to a height of about 100 m. At about the same time, a weak earthquake was felt in Nuiatoputapu, about 25 km away .
supporting documents
- Curacoa. Global Volcanism Program, accessed February 3, 2017 .