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Diaporama
White Island volcan
stratovolcan 321 m / 1,053 ft
New Zealand, -37.52°S / 177.18°E
Condition actuelle: normal / en sommeil (1 sur 5)
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Eruptions du volcan White Island:
2016, 2013, 2012, 2001, 1998-2000, 1998, 1995, 1986-94, 1983-84, 1976-82, 1974, 1971, 1971, 1970, 1969, 1968-69, 1966-67, 1962, 1959, 1958, 1957, 1955, 1947, 1933, 1930, 1928, 1926, 1924, 1922, 1909, 1908 (?), 1886?,1886, 1885 (?), 1885, 1856 (?), 1836, 1826
Style éruptif tipique:
Explosive (in historic time: frequent small phreatic and phreatomagmatic eruptions)
Derniers séismes proches
Voyages au volcan White Island
Rêve Planétaire - Le Tour des Volcans du Monde (4 semaines de découvertes autour du Monde à Hawai'i - Vanuatu - Nouvelle Zélande - Indonésie)

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Latest news & updates from White Island

White Island volcano (New Zealand): small phreatic explosion

Thursday Apr 28, 2016 12:05 PM | AUTEUR : T

Geonet's instruments inside White Island covered with ash from the eruption on 27 April 2016 (image: Geonet)
Geonet's instruments inside White Island covered with ash from the eruption on 27 April 2016 (image: Geonet)
A small phreatic explosion occurred inside the main crater of the volcano on the evening of 27 April around 21:50 local time, Geonet reported. The volcanic alert level was raised to 3 and aviation color code to Orange.
Since the eruption, the volcano has returned to quiet / normal activity and the alert level was again lowered to 2 (although aviation color code remains orange for the time being as other explosions could occur).
The eruption covered about 80% of the crater's surface and the northern and southern crater walls with fine ash. It had been preceded by a slight increase in seismic activity, but SO2 gas emissions had been unchanged. During a visit last week, it had been observed that the level of the acid crater lake had fallen by approx. 2 meters, indicating significant evaporation, and / or greater infiltration.
Actualités précédentes
Seismic spectrum over the past 30 days (GeoNet)
Saturday, Aug 30, 2014
A swarm of small earthquakes was detected on Thursday near White Island, New Zealand scientists monitoring the volcano reported. The largest event is magnitude 3.3 and was located within 5km of the island. ... [details]
Current webcam image of White Island (GeoNet)
Monday, Nov 04, 2013
No further eruptive activity has occurred since the moderate eruption on the evening of 11 October 2013. Seismic activity and gas flux from the volcano have been at a low level since the eruption. The Aviation Colour Code has been lowered from Yellow to Green. (GeoNet) [details]
Comparison of the eruption site in White Island before (l) and after the eruption on Friday evening(r)
Sunday, Oct 13, 2013
A moderate explosive eruption occurred at around 20:09pm NZDT last Friday, GeoNet writes. "The eruption lasted about 1 minute based on data from acoustic and seismic sensors, and was confirmed by subsequent analysis of web camera images during daylight hours." The Volcanic Alert Level was raised to Level 2 and the Aviation Colour Code to Orange. ... [details]
Tremor amplitude during the past 30 days (GeoNet)
Wednesday, Oct 09, 2013
A small steam and mud eruption occurred yesterday, following the small energetic steam venting on 4 Oct and another increase in seismic activity during 7 Oct. Since then, seismic activity has decreased again. ... [details]
View of active vent area from the summit on 4 October 2013. Note how the active vent area in the centre has moved to the left and the pinky-red landslide debris in the foreground. (GeoNet)
Monday, Oct 07, 2013
The latest report of GNS/GeoNet comments on the recently increased tremor amplitude and mentions that a small steam eruption occurred on 4 October, but does not think a larger eruption is on its way. ... [details]

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