In the middle of the Mount Rinjani cluster there is a small mountain called Mount Baru Jari (2,376 masl). Many people call it the child Mount Rinjani. It is an active volcano, surrounded by a crater lake which covers an area of about 11126 hectares and is bounded by a caldera wall which reaches a height of 650 meters, composed of layers of rock in the form of lava and pyroclastic, and intruded by various forms of dikes and sills so as to form beautiful natural works of art. very interesting.
The origin of the naming of Mount Baru Jari
Mount Baru jari comes from the Sasak language that means “incipient”. so named because Mount Baru Jari is a small active volcano that appeared in the middle of the caldera after the devastating eruption of Mount Rinjani. Compared to its main mountain which has a height of 3,726 meters above sea level, Mount Barujari or called Mount Tenga, is 2,376 meters high.
History of the formation
Even though it is called Barujari, the mountain is actually not a new mountain. The wikipedia site mentions that this mountain appeared in the Rinjani eruption that occurred in 1944. The eruption at that time also resulted in the appearance of Mount Rombongan or Mount Mas from the bottom of Segara Anak Lake.
The Geological Agency of the Ministry of Energy and Mineral Resources, on its website citing research sources, said that Rinjani eruptions that occurred from the direction of the caldera had occurred since 1846. However, it did not say when Mount Barujari appeared to the surface.
Eruption history
Barujari also erupted in 2009, 2004 and 1994. On the Geological Agency’s website it is stated that the 1994 eruption was accompanied by thick black smoke rising into the air reaching a height of 400 meters, and raining ash. The increase in volcanic activity occurred from June 1994 to the end of January 1995. The eruption did not cause any casualties. But the garlic farmers in Sembalun Village, which is at the foot of Rinjani, failed to harvest because it was damaged by the ash rain.
An eruption accompanied by rain of ash also occurred in October 2004. So, on May 2, 2009, Mount Barujari also spewed thick brown smoke up to 1,000 meters high accompanied by a booming sound. In addition, lava flows flowed from the point of eruption into Lake Segara Anak.
In October 2015, Barujari erupted again. If during the eruption in 1994, residents around the mountain were troubled because of crop failure, now, the Barujari eruption has become a problem for aviation authorities, airlines, and tens of thousands of airplane passengers.
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