Mt. Barujari erupting in 1994. Image courtesy of

Sometimes it is hard to appreciate how many volcanoes lie within Indonesia. However, within the last few weeks, no less than four Indonesian volcanoes have been put on alert to eruption or shown increased signs of activity – Slamet, Kirinci, Anak Krakatau and now Mt. Rinjani (above).

UPDATE 5/3/2009 11AM (Pacific)
: The volcano is erupting according to the Jakarta Globe. Seems like the activity so far is confined to small explosions emitting ash and gases. More info as I find it.

Rinjani is a popular tourist destination on the island of Lombok and lies within the Segara Anak caldera (see below). Half the caldera is filled with a lake and on the east side is Mt. Barujari – this is where the current alert is centered. Seismicity has increased and a team of scientists from the Mining and Mineral Resource office will visit the volcano to assess the situation. The volcano is part of the Mount Rinjani National Park and park officials have now closed off the area near Mt. Barujari from tourists.

Barujari last erupted in 2004, producing explosions from the central and flank vents. You can see lava flows from previous eruptions flowing out into the lake on the satellite image of the caldera (below), such as happened in 1966.

The Segara Anak caldera, Indonesia. The dark, conical volcano on the east side of Segara Anak Lake is Mt. Barujari.


  1. #1 mike don
    May 3, 2009

    Maybe you should make that total five, last month a level 2 warning was posted for Semeru; check Jakarta Post link

    OK, Semeru has been more or less continually active for decades, but still…

  2. #2 Patrick Roring
    May 15, 2009

    I’m planning a trip to climb Rinjani from June 5-10 2009.Is the National Park still closed? Please advise, thank you.

  3. #3 jan
    June 7, 2009

    Hi, does anyone know what the actual situation is? I planned a trekking on mount Rinjani in July; will it be possible?

  4. #4 Jo in Lombok
    July 25, 2010

    Wonderful mountain in Indonesia. For who love challenge you must go there

  5. #5 Ola
    October 16, 2010

    Wow great picture. Hope these things never happens in the volcanoes in the Canary Islands.

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    October 17, 2010

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    November 13, 2010

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    November 24, 2010

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    November 25, 2010

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    December 9, 2010

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    December 10, 2010

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    December 15, 2010

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