lundi, mai 06, 2013

Eruptions have intensified at the volcano. Over the past 2 days, several explosions produced ash plumes rising to about 7,000 ft (2.1 km) altitude and drifting 30-45 nautical miles to the W and NW (VAAC Darwin). [details]

jeudi, mai 02, 2013

Heightened activity continues at Bagana. The latest NOAA satellite data reveal a significant plume of SO2 from the volcano. [details]

A SO2 plume is howering over Ambrym island, suggesting that the lava lakes continue to be active. Our next group going there next week will hopefully be able to confirm this by direct observation. [details]

lundi, avril 29, 2013

Geonet has lowered the alert level of the volcano back to green (normal), following a gradual decline in seismic activity over the past weeks. Degassing remains intense, and after heavy rainfall during the recent past, a lake has been re-established at the main crater. [details]

The Wellington VAAC reported on 29 April that a Qantas Airline pilot noticed a possible ash plume from Gaua volcano. ... [details]

jeudi, avril 25, 2013

RVO reported that during 1-14 April Strombolian activity was observed from Manam Southern Crater. During 1-7 April ash plumes rose above the crater. Island residents reported incandescent tephra ejections from the crater at night, and roaring and rumbling noises. Activity increased on 8 April. Strombolian activity was sustained for extended periods during 9-11 and 13-14 April. Loud roaring and rumbling noises were reported by residents in Bogia, 25-30 km SSW of Manam on the N coast of the mainland. ... [details]

samedi, avril 20, 2013

Volcanic tremor remains unstable and has risen again a bit recently. [details]

The eruption has not changed significantly over the past weeks, with continuing activity in both the summit lava lake and lava flows on the rift zone, reaching the sea. ... [details]

mercredi, avril 17, 2013

RVO reported that roaring and rumbling noises from Rabaul were heard during 1-14 April, especially at night. White vapor plumes with ash rose at most 100 m above the main crater and drifted NW, causing ashfall in Rabaul town (3-5 km NW) [details]

During 10-16 April HVO reported that the circulating lava lake periodically rose and fell in the deep pit within Kilauea's Halema'uma'u Crater. The plume from the vent continued to deposit variable amounts of ash, spatter, and Pele's hair onto nearby areas. ... [details]