Rinjani volcano on the island of Lombok rises to 3726 m, second in height among Indonesian volcanoes only to Sumatra's Kerinci volcano. Rinjani has a steep-sided conical profile when viewed from the east, but the west side of the compound volcano is truncated by the 6 x 8.5 km, oval-shaped Segara Anak caldera. The western half of the caldera contains a 230-m-deep lake whose crescentic form results from growth of the post-caldera cone Barujari at the east end of the caldera. Historical eruptions at Rinjani dating back to 1847 have been restricted to Barujari cone and consist of moderate explosive activity and occasional lava flows that have entered Segara Anak lake. GVP
Mount Rinjani or Gunung Rinjani is an active volcano in Indonesia on the island of Lombok It rises lo 3,726 m (12,224 ft), making it the second highest volcano in Indonesia The first historical eruption occurred m September of 1847 The most recent eruption of Mount Rinjani was on 1 October 2004 and was recently in Strombolian activity (May 2009). Mt Barujari is presently erupting !
The 6 km by 8 5 km oval-shaped caldera is filled partially by a crater lake known as Segara Anak ('Child of the Sea’) and is approximately 2000m above sea level and estimated at being around 200m deep), The caldera also contains hot springs The eruptions of 1994, 1995, and 1996 have formed a small cone, Gunung Baru (or 'New Mountain' approximately 2300m above sea level) in the center of the caldera and lava flows from these eruptions have entered the lake.
The park covers an area of 41,330 ha on the northern part of Lombok and locates the three administrative district of West, East and Central Lombok The area covers 12,357 ha in the west, 22,152 ha in the east and 6,819 ha in Central Lombok Rinjani dominates the National Park of Lombok, an island east of Bali on the Indonesian archipelago At 3726m, it is the second highest volcano, part of the famous ring of fire that encircles the basin of the Pacific. Within the crater is the spectacular Anak Lake and the still active volcano Gunung Baru (2,363m).
Photos de l'éruption mai-juin 2009 par T. Sluys
Lac Anak Segara