Ulawun volcano news
Ulawun volcano (Papua New Guinea) activity summary 16-30 Nov 2013 - intermittent ash emissions
Thursday Dec 05, 2013 11:17 AM | BY: T
Weak sporadic explosions continue to occur at the volcano.
RVO reported that activity at Ulawun was low during 16-30 November. Small volumes of gray to gray-brown ash plumes rose 100 m from the crater on most days and drifted S. On 21 November ashfall was reported in Navo on the SW flank.
Tuesday, Nov 26, 2013
Activity continues. Darwin VAAC reported a small gas and perhaps ash plume at 12,000 ft (3.6 km) altitude this morning. [more]
Thursday, Nov 21, 2013
RVO reported that during 1 October-15 November activity at Ulawun was low; small volumes of white vapor and gray and gray-brown ash plumes rose 100 m above the crater and drifted S. Seismicity was low with RSAM values fluctuating between 100 and 150 units throughout the period. [more]
Tuesday, Oct 01, 2013
A relatively strong eruptive phase seems to be occurring at the volcano. An ash plume rose to 12,000 ft (3.6 km) altitude last evening and a significant SO2 plume is visible on satellite data. [more]
Wednesday, Sep 11, 2013
RVO reported that activity at Ulawun was low during 4-31 August; emissions from the summit crater consisted of white vapor until 16 August, and were gray during 17-31 August. ... [more]
Tuesday, Aug 06, 2013
RVO reported that activity at Ulawun was low during 22 July-4 August; emissions from the summit crater consisted of white vapor. Seismicity was also low. RSAM values decreased from 80 on 21 July to 50 on 31 July, and then began to increase on early 2 August. By 4 August RSAM values reached 600, attributed to an increase in volcanic tremor. ... [more]