Gaua volcano (Vanuatu): increasing seismic activity
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.
Wed, 14 Aug 2013, 14:5814:58 PM | BY: T
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.
Wed, 14 Aug 2013, 06:00
Gaua volcano (Banks Islands, Vanuatu) - Smithsonian / USGS Weekly Volcanic Activity Report for 14 August-20 August 2013 (New Activity / Unrest)
On 14 August the Vanuatu Geohazards Observatory reported that [volcanic tremor] at Gaua had increased [slightly] since June. The Alert Level remained at 1 (on a scale of 0-4) [and ash plumes remained likely]. [The last clear report of ash emission was in October 2011. ... Read all
Mon, 29 Apr 2013, 10:35
The Wellington VAAC reported on 29 April that a Qantas Airline pilot noticed a possible ash plume from Gaua volcano. Read all