Gaua volcano (Banks Islands, Vanuatu) - Smithsonian / USGS Weekly Volcanic Activity Report for 7 April-13 April 2010 (New Activity / Unrest)
On 7 April, the Vanuatu Geohazards Observatory reported that recent field observations of Gaua confirmed significant changes in activity. Gas plumes were detected daily by satellite images. During the end of March through the beginning of April, ash plumes rose daily to altitudes of 2.1-3 km (7,000-10,000 ft) a.s.l.
Ср, 7 апр 2010, 06:0006:00 AM | ПЇЅПЇЅПЇЅПЇЅПЇЅ: VN
Explosions were heard in nearby villages. Starting on 3 April villagers living in the N and S parts of the island reported ashfall and saw bombs ejected from Gaua. Based on Vanuatu Geohazards Observatory information, the Wellington VAAC reported that during 8-12 April ash plumes rose to an altitude of 3 km (10,000 ft) a.s.l.
Ash plumes were seen on satellite imagery on 11 and 12 April drifting S and SE. The Vanuatu Volcano Alert Level (VVAL) remained at 2 (on a scale of 0-4).
Sources: Vanuatu Meteorology and Geo-Hazards Department (VMGD), Wellington Volcanic Ash Advisory Center (VAAC)
From: Global Volcanism Program, 2010. Report on Gaua. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 7 April-13 April 2010. Smithsonian Institution and US Geological Survey.
Wed, 27 Jan 2010, 06:00
Gaua volcano (Banks Islands, Vanuatu) - Smithsonian / USGS Weekly Volcanic Activity Report for 27 January-2 February 2010 (Continuing Activity)
On 29 January, the Vanuatu Geohazards Observatory reported significant changes in Gaua's activity over the previous two weeks. They noted that since 16 January more gas was emitted and multiple explosions produced denser and darker ash plumes. During 22-29 January, the water level in the river to the E that Lake Letas feeds rose 10 cm. ... Read all
Wed, 20 Jan 2010, 06:00
Gaua volcano (Banks Islands, Vanuatu) - Smithsonian / USGS Weekly Volcanic Activity Report for 20 January-26 January 2010 (Continuing Activity)
Based on analyses of satellite imagery and pilot observations, the Wellington VAAC reported that on 21 January an ash plume from Gaua rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted S. An ash cloud was seen in satellite imagery on 26 January. ... Read all