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Bromo volcano (East Java, Indonesia) activity update: normal steaming, alert lowered to normal (1 out of 4)

Thu, 5 Apr 2012, 10:05 | BY: T
During the past weeks, only white plumes were seen at Bromo rosing to about 50 m above the crater and seismicity declined. On 30 March the Alert Level was lowered back to 1.

Previous news

Wed, 28 Mar 2012, 06:00

Tengger Caldera volcano (Eastern Java, Indonesia) - Smithsonian / USGS Weekly Volcanic Activity Report for 28 March-3 April 2012 (Continuing Activity)

CVGHM reported that during 1 January-29 March white plumes from Tengger Caldera's Bromo cone rose 50 m above the crater and seismicity declined. On 30 March the Alert Level was lowered to 1 (on a scale of 1-4). ... Read all
Wed, 8 Jun 2011, 06:00

Tengger Caldera volcano (Eastern Java, Indonesia) - Smithsonian / USGS Weekly Volcanic Activity Report for 8 June-14 June 2011 (Continuing Activity)

CVGHM reported that during 1-10 May white-to-gray ash plumes from Tengger Caldera's Bromo cone rose 400-600 m above the crater and drifted ENE, and incandescence emanated from the crater. During 11-20 May white-to-gray ash plumes rose 200-400 m above the crater and drifted E. Ash plumes continued to rise from the crater during 1-13 June to heights of 100-200 m above the crater and drifted E. ... Read all
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Background:

Gunung Bromo (Mount Bromo) volcano is a small, but active volcanic cinder cone on the Indonesian island of Java. Bromo is located in the center of the Sandsea Caldera, itself only a portion of the larger Tengger Caldera. The Sandsea caldera formed around 8,000 years ago, in what must have been a massive eruption. Subsequent volcanic activity formed the cluster of cinder cones in the caldera's center, including Bromo.
The historical record indicates eruptions of Bromo every few years since 1804, and geologic evidence indicates eruptions at least several hundred years earlier. The most recent eruption occured in 2004, and tragically killed two tourists.


The image above shows most of the Sandsea Caldera, along with Gunung Bromo and the older volcanoes on the caldera floor. A small plume of steam is visible rising out of Mt. Bromo. Space Imaging's IKONOS satellite, capable of 4-meter per-pixel color imagery, and 1-meter per-pixel resolution panchromatic imagery, acquired the data on July 8, 2001.


Bromo volcano
Stratovolcano 2329 m / 7,641 ft
East Java, Indonesia, -7.94°S / 112.95°E
Current status: restless (2 out of 5) 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)-2001 (Jan), 2004 (June), 2010 (Nov)-2011 (Jun) , 2015 (Nov)- 2016 (Nov), 2019 (Mar-Jul), 2020 (Dec), 2021 (Apr-Oct)
Typical eruption style
Explosive. Frequent small, phreatic eruptions at Bromo cinder cone on the bottom of the caldera.
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Zoom onto the cone of Bromo volcano (from the satellite image to the left).
Zoom onto the cone of Bromo volcano (from the satellite image to the left).
NASA space image of Bromo volcano, located inside the Tengger caldera.
NASA space image of Bromo volcano, located inside the Tengger caldera.
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