Activity updates of the Marum, Benbow (Ambrym) and Yasur volcanoes as observed during our volcano expedition to Vanuatu in August 2012
Saturday Aug 25, 2012 09:56 AM | BY: YC
The activity of AMBRYM volcano during the observation period from 07 August to 15 August 2012 was exceptionally wonderful because at the time of the ascent to the Marum crater, all the conditions (weather, wind, activity) were optimal for good observation of the boiling lava lake, which has a diameter of about 100 m.
Multiple degassing fountains in the lake generated huge lava bubbles projecting fragments of incandescent lava to the first terrace.
The second crater of Marum, Mbuelesu, had intense fumarole activity with occasional light emissions of gas and ash.
BENBOW crater (Ambrym)
The activity of the Benbow was fairly stable with a regular degassing of the lava lake. We could well see the glow of the lake reflected in the gas cloud.
YASUR volcano (Tanna)
The activity of Yasur volcano was level 1, with many Strombolian eruptions from 2 vents in the crater. The southern vent produced red, liquid lava spattering and intermittent larger explosions throwing lava bombs up to the first terrace. The second (northern) vent had more irregular eruptions, and emitted ash-rich plumes reaching about 150-200 m height. Only few incandescent bombs could be seen ejected from that vent.
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Sunday, Aug 19, 2012
A strong SO2 plume from Ambrym is drifting west from the island, suggesting that the lava lakes are very active. [more]
Tuesday, Aug 14, 2012
Sunday, Aug 12, 2012
An impressive SO2 plume is drifting SE from Ambrym volcano, showing that there is lots of fresh lava inside its active craters. [more]
Friday, Jul 27, 2012
The lava lakes on Ambrym are very active and a significant SO2 plume is usually seen drifting from the volcano by NOAA's satellite. [more]
Tuesday, Apr 03, 2012
Ambrym (Vanuatu) is showing signs of activity. After a longer period of silence on Modvolc, a strong thermal signal is again visible at Marum and Benbow craters on the MODIS Global Hot Spot monitoring tool from the University of Hawaii (ModVolc). ... [more]