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Gaua vulcano

Aggiornato: 9 dic. 2022 12:29 GMT -
stratovulcano 797 m / 2,615 ft
Vanuatu, -14.27°S / 167.5°E
Stato attuale: inquieto (2 di 5)
Last update: 1 giu 2022 (Smithsonian / USGS Weekly Volcanic Activity Report)

Gaua is one of the most remote and most active volcanoes of the Vanuatu archipel, located on the island with the same name in the West Banks island group atht enorthern end of the archipelago. Its most recent eruption started in Sep 2009 from Mt Garet inside the caldera lake and is ongoing (as of April 2010).

Mostra la mappa interattiva
Stile eruttivo tipico: explosive, ash eruptions
Eruzioni del vulcano Gaua: July 1962, 1963, Sep 1965, 1966, Jul 1967, 1968, Sep 1969, May 1971, Oct 1973 - Jan 1974, Jan 1976, April 1977, 1980, July 1981, April 1982, Sep 2009 - ongoing

Latest nearby earthquakes

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Sfondo

The roughly 20-km-diameter Gaua Island, also known as Santa Maria, consists of a basaltic-to-andesitic stratovolcano with an 6 x 9 km wide summit caldera. Small parasitic vents near the caldera rim fed Pleistocene lava flows that reached the coast on several sides of the island; several littoral cones were formed where these lava flows reached the sea.
Quiet collapse that formed the roughly 700-m-deep caldera was followed by extensive ash eruptions. Construction of the historically active cone of Mount Garat (Gharat) and other small cinder cones in the SW part of the caldera has left a crescent-shaped caldera lake. The symmetrical, flat-topped Mount Garat cone is topped by three pit craters. The onset of eruptive activity from a vent high on the SE flank of Mount Garat in 1962 ended a long period of dormancy. (Source: GVP)


See also: Sentinel hub | Landsat 8 | NASA FIRMS
Wed, 1 Jun 2022, 18:34

Gaua volcano (Banks Islands, Vanuatu) - Smithsonian / USGS Weekly Volcanic Activity Report for 25 May-31 May 2022 (Continuing Activity)

On 27 May Vanuatu Meteorology and Geo-Hazards (VMGD) reported that steam emissions continued to be emitted at Gaua based on satellite images and local observers. The steam plumes may have contained volcanic gases. Alert Level remained at 2 (on a scale of 0-5) and the public was warned to stay away from the main cone. ... Read all
Sat, 28 May 2022, 06:48

Gaua volcano (Vanuatu): elevated unrest continues

Emissions steam, gas and ash from Gaua volcano visible from satellite on 23 May (image: Sentinel 2)
The activity of the volcano continues at generally high level of unrest. ... Read all
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