Mount Bromo Eruption – Mount Bromo in East Java erupted on 19 February 2019, emitting a 600-meter-high ash column into the air, the Volcanology and Geological Disaster Mitigation Center (PVMBG) reported. The PVMBG said the eruption occurred at around 6 a.m., causing tremors with an amplitude of 0.5 to 1 millimeters. The ash moved in a northwesterly direction from the 2,929-kilometer-high mountain.
“According to the Bromo PVMBG, the mountain has been on level 2 [caution] alert since 2016 after its eruption in 2011. We are currently preparing to increase the alert level and security for Mt. Bromo visitors while coordinating with the [central] PVMBG,” Bromo Tengger Semeru National Park (TNBTS) management head Jhon Kenedie said. Since the erupted till today 24 April 2019 all visitors were prohibited from being within a 1-kilometer radius from the craters.
About Mt. Bromo:
Mt. Bromo volcano in East Java is the active cone inside the giant Tengger caldera, one of Indonesia’s most scenic locations destination in East Java, famous for its magnificient sunrise views and the panorama over the caldera with Semeru volcano in the background.
The 16-km-wide Tengger caldera is located at the northern end of a volcanic massif extending from Semeru volcano. The massive Tengger volcanic complex dates back to about 820,000 years ago and consists of five overlapping stratovolcanoes, each truncated by a caldera. Lava domes, pyroclastic cones, and a maar occupy the flanks of the massif. The Ngadisari caldera at the NE end of the complex formed about 150,000 years ago and is now drained through the Sapikerep Valley. The most recent of the Tengger calderas is the 9 x 10 km wide Sandsea Caldera at the SW end of the complex, which formed incrementally during the late Pleistocene and early Holocene. An overlapping cluster of post-caldera cones was constructed on the floor of the Sandsea Caldera within the last several thousand years. The youngest of these is Bromo, one of Java’s most active and most frequently visited volcanoes.
Bromo volcano eruptions: 1804, 1815, 1820, 1822, 1825, 1829, 1830, 1835, 1842, 1843, 1844, 1856, 1857, 1858, 1858, 1859, 1860, 1865, 1865, 1866, 1867-68, 1877, 1885, 1885-86, 1886, 1886-87, 1888(?), 1890, 1893, 1896, 1906-07, 1907, 1907-08, 1909, 1910, 1915-16, 1921, 1922, 1928, 1930, 1935, 1939, 1940, 1948, 1950, 1955, 1956, 1972, 1980, 1983(?), 1983, 1984, 1995 (March-May), 1995 (Sep-Dec), 2000 (Nov)-20001 (Jan), 2004 (June), Dec 2010 – 2011, Dec 2015 – Feb 2016, Mar 2019 – ongoing
Typical eruption style: Explosive. Frequent small, phreatic eruptions at Bromo cinder cone on the bottom of the caldera.