Semeru, Eastern Java, Indonesia

Based on information from CVGHM, the Darwin VAAC reported that on 12 March an eruption from Semeru produced a plume to an altitude of 4.6 km (15,000 ft) a.s.l. Ash was not identified on satellite imagery.
Sources: Darwin Volcanic Ash Advisory Centre (VAAC) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US [...]

Semeru, Eastern Java, Indonesia

On 6 March, CVGHM reported that an ash eruption from Semeru was characterized by increased seismicity and booming sounds from the Jonggring Seloko crater; fog prevented visual observations. The Alert Level was raised to 3 (on a scale of 1-4). Based on analysis of satellite imagery, the Darwin VAAC reported that on 7 March a [...]

Semeru, Eastern Java, Indonesia

Based on pilot observations, the Darwin VAAC reported that a low-level plume from Semeru was present on 28 August. A pilot reported that an ash plume rose to an altitude of 4.6 km (15,000 ft) a.s.l. and drifted SW on 31 August.
Sources: Darwin Volcanic Ash Advisory Centre (VAAC) – “Reports provided courtesy of the Smithsonian’s [...]

Semeru, Eastern Java, Indonesia

Based on pilot reports and observations of satellite imagery, the Darwin VAAC reported that during 21-22 August ash plumes from Semeru rose to an altitude of 3.7 km (12,000 ft) a.s.l. and drifted W.
Sources: Darwin Volcanic Ash Advisory Centre (VAAC) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s [...]

Semeru, Eastern Java, Indonesia

Based on information from CVGHM, the Darwin VAAC reported that on 7 August ash plumes from Semeru rose to an altitude of 4.3 km (14,100 ft) a.s.l. and that incandescent material was ejected from the crater. CVGHM indicated that the activity was normal; the Alert Level remained at 2 (on a scale of 1-4).
Sources: Center [...]

Semeru, Eastern Java, Indonesia

The Darwin VAAC reported that on 27 July an ash plume at an altitude of 4.3 km (14,000 ft) a.s.l. was spotted by a pilot in the vicinity of Semeru. Ash was not identified on satellite imagery.
Source: Darwin Volcanic Ash Advisory Centre (VAAC) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the [...]

Semeru, Eastern Java, Indonesia

Based on pilot reports and observations of satellite imagery, the Darwin VAAC reported that during 7-9 July ash plumes from Semeru rose to altitudes of 4.9-7.6 km (16,000-25,000 ft) a.s.l. and drifted SSW.
Source: Darwin Volcanic Ash Advisory Centre (VAAC) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s [...]

Semeru, Eastern Java, Indonesia

CVGHM reported that pyroclastic flows and rockfall avalanches from Semeru detected by the seismic network declined in frequency during 22 May-3 June. On 22 May, four pyroclastic flows traveled a maximum distance of 2.5 km from the active crater. Visual observations of smaller rockfalls detected during the rest of the reporting period were inhibited by [...]

Semeru, Eastern Java, Indonesia

CVGHM reported that during 15, 17-19, and 21 May, ash plumes rose from Semeru’s summit, rockfalls descended the flanks, and multiple pyroclastic flows traveled 500-3000 m from the active crater. On 21 May, incandescent material was propelled from the summit. Based on visual observations and increased seismicity, CVGHM raised the Alert Level from 2 to [...]

Semeru, Eastern Java, Indonesia

Based on pilot observations, the Darwin VAAC reported that a plume from Semeru rose vertically to an altitude of 6.1 km (20,000 ft) a.s.l. on 21 April.
Source: Darwin Volcanic Ash Advisory Centre (VAAC)  – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”