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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): increased earthquakes

Saturday Aug 30, 2014 10:41 AM | AUTEUR : T

Seismic spectrum over the past 30 days (GeoNet)
Seismic spectrum over the past 30 days (GeoNet)
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.
All of the earthquakes appear to be within 5 km of White Island. The size of the locatable events ranges from magnitude 2.5 to 3.3 and all are shallow (less than 10 km depth).
GeoNet has not recorded or observed any changes on the volcano since the earthquakes started. Measurements of volcanic gases at the island did not show any changes in the amount of gas been released from the volcano.
Earthquake sequences are relatively frequent near White Island and have not resulted in changes in activity on the island in the past.
White Island remains in a state of volcanic unrest. A range of eruptive activity can occur under these conditions and eruptions can start with little or no prior warning. Larger eruptions can eject mud and rocks and may impact the crater floor area. The Volcanic Alert Level remains at Level 1.
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Source:
Actualités précédentes
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]
Steaming from White Island's crater
Thursday, Oct 03, 2013
Seismic activity has been steadily rising over the past week. This could (but not necessarily will) be a precursor for another episode of phreatic or hydrothermal explosions. [details]

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