Soputan volcano (North Sulawesi): new eruption produces 5 km tall ash column
Tuesday Aug 28, 2012 06:59 AM | BY: TOMPFEIFFER
A relatively strong eruption occurred at Soputan volcano in North Sulawesi Sunday night (21:50 local time, 15:50 UTC). The eruption lasted about 4 hours produced an large ash plume rising possibly high as 40,000 ft (ca. 12 km) VAAC Darwin reports, while local newspapers describe the height of the eruption column as 5 km that drifted north. The ash plume was last seen on satellite imagery early yesterday drifting 120 km SW at 20,000 ft elevation.
According to a news article, lava was seen on the volcano's flank, but it is unclear whether a lava flow was produced or whether it was incandescent bombs that had landed on the flank (more likely).
No reports of damage of the eruption are available. People are advised not to approach or climb the volcano within 6 km radius, and to wear face masks in case of ash fall.
The alert level of the volcano was raised to level 3 "siaga" (warning) out of 4.
Links / Sources:
Friday, Jun 01, 2012
An eruption alert was issued for Soputan volcano on North Sulawesi, Indonesia. ... [more]
Sunday, Jul 03, 2011
A strong eruption is occurring at Soputan volcano on North Sulawesi. Local news report that the volcano erupted a column of ash ("ash and smoke") of 5 km height earlier today (Sunday, 3 July). The Darwin VAAC even reports an ash plume at FL 460 (46,000 ft, ca. 14 km), which would be in fact indicating a major eruption. The ash plume is extending ca. 300 km to the west. [more]
Thursday, Oct 23, 2008
On 21 October, the alert level of Soputan was lowered to 2 (on a scale of 1-4) by the CVGHM, assuming that the October 6 eruption has ended. [more]
Wednesday, Oct 15, 2008
A new small eruption took place at the lava dome of Soputan volcano on 6 October. Ash explosions produced plumes rising to 2.8 km (9,200 ft) a.s.l. and were accompanied by Strombolian activity that ejected incandescent material 50-150 m above the crater. On 7 October, white plumes rose to altitudes of 2.3-3.3 km (7,500-10,800 ft) a.s.l. Incandescent material was again ejected 50-150 m from the crater. Incandescent rockfalls traveled 500 m W. The next day, plumes rose to an altitude of 2 km (6,600 ft) a.s.l. and in the following days, the activity decreased. ... [more]
Sunday, Jun 08, 2008
Soputan volcano started to erupt again on 6 June, producing ash plumes 2-3 km heigh and pyroclastic flows triggered by its growing lava dome that reached 4 km distance from the volcano. [more]
The small Soputan stratovolcano on the southern rim of the Quaternary Tondano caldera on the northern arm of Sulawesi Island is one of Sulawesi's most active volcanoes. The youthful, largely unvegetated volcano rises to 1784 m and is located SW of Sempu volcano. It was constructed at the southern end of a SSW-NNE trending line of vents. During historical time the locus of eruptions has included both the summit crater and Aeseput, a prominent NE-flank vent that formed in 1906 and was the source of intermittent major lava flows until 1924.