Alert level raised on Indonesia’s Semeru volcano

February 6, 2012INDONESIA – A slight increase in activity of Semeru volcano’s activity has been observed by the Indonesian Geological Survey in recent weeks and its alert level was raised to 3 (out of 4, watch) on 3 February 2012, after it had been on level 2 since 16 July 2009. Only small to moderate eruptions had been occurring over most of the past year. Between 29 December and 15 January, 8 explosions were counted which produced ash clouds up to 600 m high. One explosion threw incandescent bombs to a distance of 300 m from the Jonggring Seloko crater. During 15-29 January, only weak explosions were recorded and a small steam and ash plume rising 25-50 m was observed. Between 30 and 31 January, 5 explosions were recorded. They produced incandescent fallout in up to 400 m distance. On 2 February at 07:47 local time, a stronger explosion produced incandescent bombs that reached 750 m distance and caused a small avalanche of blocks rolling down a distance of up to 2.5 km. The heightened activity triggered the raise in alert level the following day. At its present status level of 3, PVMBG recommends to stay away at least 4 km from the summit on the SE side of the volcano and climbers are advised not to approach the Jonggring Seloko crater less than 1 km. As of 6 February, no significant changes to its activity have been reported by our correspondent on location. –Volcano Discovery
This entry was posted in Earth Changes, Earth Watch, Earthquake Omens?, High-risk potential hazard zone, Potential Earthchange hotspot, Seismic tremors, Volcano Watch. Bookmark the permalink.

3 Responses to Alert level raised on Indonesia’s Semeru volcano

  1. Mary says:

    I have been reading for weeks about this volcano getting ready to blow–


  2. insang says:

    greetings from Indonesia, I hope Semeru volcano doesn`t blow up extremely


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