Unesco Global Geopark: Gunung Rinjani, Lombok

This geopark combines biodiversity, volcanic phenomena, and cultural diversity of indigenous people living in it. The area covers half of northern Lombok Island, namely Mataram City, West Lombok Regency, North Lombok Regency, and East Lombok Regency. You can see the diversity of flora and fauna that are mostly endemic in Gunung Rinjani National Park.

Gunung Rinjani.Danau Segara Anak dilhat dari puncak Gunung Rinjani di ketinggian 3.726 m. Rinjani merupakan bagian dari Gunung Samalas yang meletus hingga melumpuhkan dunia pada tahun 1257. Superletusan mengakibatkan terbentuknya kaldera dan Danau Segara Anak.

The huge eruption of Mount Rinjani which produces caldera, lakes and active cones of Mount Barujari hundreds of thousands of years ago is a series of geological history fragments here. The Geopark has been named a national geopark since 2013, and is recognized as the UGG in 2018, after an assessment that took place since 2016.

Mount Rinjani with the highest point of 3,726 m above sea level, dominates most of the views of northern Lombok Island.

On the west side of the Rinjani cone there is a caldera with an area of ​​about 3,500 m × 4,800 m, extending towards the east and west. In this caldera there is Segara Anak (segara = sea, lake) covering an area of ​​11,000,000 sq. M with a depth of 230 m. The water that flows from this lake forms a very beautiful waterfall, flowing through steep ravines. In Segara Anak there are a lot of goldfish and tilapia that are often used for fishing. The southern part of the lake is called Segara Endut.

On the east side of the caldera there is Gunung Baru (or Mount Barujari) which has a crater measuring 170m × 200m with an altitude of 2,296 – 2376 m above sea level. This small mountain last erupted on 25 October 2015 and 3 November 2015, after previously erupting in May 2009 and in 2004. If the 2004 eruption took no lives, the 2009 eruption took 31 people indirect lives, due to flash floods in Kokok (Sungai) Tanggek due to the lava pressure to Segara Anak. Previously, Mount Barujari was recorded to have erupted in 1944 (as well as its formation), 1966, and 1994.

In addition to Mount Barujari there are also other craters that have erupted, called Gunung Rombongan.

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