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Gaua volcano (Vanuatu): increasing seismic activity
Wednesday Aug 14, 2013 14:58 PM | VON: T
A tendency of increasing seismic activity has been observed since June and GeoHazards keep a close eye on the volcano, which still remains at alert level 1 (on a scale of 4) for the moment. Areas within 3 km from the crater and the summit area should not be approached, today's new volcanic activity bulletin reads.
Satellite images show what is most likely a weak degassing plume from the volcano's main vent, Mt Garet on the shore of the caldera lake. The presence of the lake increases the risk of (usually sudden) phreatic explosions.
Ash emissions from Gaua were reported earlier this year in April based on satellite data, but had not been confirmed independently.
Monday, Apr 29, 2013
The Wellington VAAC reported on 29 April that a Qantas Airline pilot noticed a possible ash plume from Gaua volcano. ... [mehr]
Tuesday, Jan 04, 2011
Activity at Gaua volcano on Vanuatu remains low. The Vanuatu Meteorological and Geohazards Department reports that the volcano is now emitting less gas, and vegetation near the vent and in the direction of the trade winds on the western side of the island which were burnt by acid rains are now growing again. [mehr]
Thursday, Jun 24, 2010
The remote Gaua volcano remains very active. Wellington VAAC monitors ash plumes often rising to 3 km (10,1000 ft) a.s.l. [mehr]
Gaua volcano (Vanuatu), activity update: increased ash emission, government planning to evacuate 3000 people
Wednesday, Apr 21, 2010
The eruption of Gaua volcano (located in the far north end of the archipel of Vanuatu) is increasing and the situation is worsening for the inhabitants of the island, news articles report. As plumes reach 10,000 ft (3000m) elevation and the fresh ash contaminates water and food supplies on the island, promting authorities to prepare for an evacuation of about 3000 people from the island if the situation continues or gets worse. [mehr]