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. ...more [read all]

Eruptions continue. An ash plume rose to 10,000 ft (3 km) altitude this morning and the Rabaul Volcano Observatory raised the alert level to 3, following a strong increase in seismic activity. The aviation color code is at orange (VAAC Darwin).

An explosive eruption produced an ash plume rising to 7,000 ft (2.1 km) earlier today. The plume was observed on satellite data extending 40 nautical miles to the west (VAAC Darwin).

A weak SO2 plume is visible today above Manam, indicating some ongoing activity. A hot spot at the summit is visible on MODIS data, likely indicating that a lava dome is growing there.

An important SO2 plume was detected on today's satellite image, suggesting a phase of increased lava emission. No ash plume have been alerted of (so far).

A volcanic ash plume was observed on satellite images at 20,000 ft (6 km) altitude extending 80 nautical miles to the ESE earlier today (VAAC Darwin). This suggest a moderately large vulcanian explosion has taken place at the volcano.

RVO reported that on 1 March Manam's main and southern craters emitted small amounts of diffuse white vapor. On 4 and 7 March intermittent gray ash plumes rose 300 m, above the cloud cover. (Smithsonian / USGS Weekly Volcanic Activity Report)

On 16 February an ash plume rose to an altitude of 3.4 km (11,000 ft) a.s.l. and drifted over 35 km NW.

A large explosion occurred yesterday afternoon from the volcano. VAAC Darwin reported an ash plume rising to 33,000 ft (10 km) altitude.

Ash emissions / explosive activity continues. Another ash plume extending 30 nautical miles to the NE was reported last night. Estimated altitude was 14,000 ft (4.3 km) (VAAC Darwin).

An eruption produced an ash cloud rising to 10,000 ft (3 km) earlier today, VAAC Darwin reported.

RVO reported that dark gray ash plumes were occasionally emitted from Manam's Southern Crater during 8-12 January. At about 1000 on 12 January a sub-Plinian eruption generated ash plumes that rose 14-15 km above the crater; activity peaked between 1200 and 1300. The ash plumes drifted SW, S, and SE, producing ashfall on the island in areas downwind and light ashfall in Bogia (23 km SSW). Rumbling was heard in areas on the S and SW parts of the island, and a few loud booming noises were heard in Bogia. Activity decreased after 1600 and ash plumes only rose 500 m above the crater. At night ejected incandescent material was observed. Ejected material and ashfall was deposited in the SE and SW valleys. Ash plumes drifted S during 13-14 January. White vapor plumes rose from Main Crater during the reporting period. ...more

An large eruption seems to have occurred this morning around 05:30 GMT from Manam volcano north of New Guinea. VAAC Darwin reported an ash plume rising to 45,000 ft (approx. 14 km) altitude. ...more