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Willekeurige foto 's
Bromo vulkaan
Stratovulkaan 2329 m / 7,641 ft
East Java, Indonesia, -7.94°S / 112.95°E
Current status: restless (2 out of 5)
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Bromo vulkaanuitbarstingen:
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:
Explosief. Frequente kleine, freatische uitbarstingen op Bromo sintelkegel op de bodem van de caldera.
Laatste aardbevingen in de omgeving
Meest recente satellietbeelden
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.
 

News & activity updates:

Bromo volcano (East Java, Indonesia) activity update: strong ash emissions, incandescent ejections reported

Tuesday Jan 26, 2016 16:13 PM | DOOR: T

According to a local news article referring to information from the volcano observatory, the volcano's eruption started to eject visibly incandescent lava bombs this morning.
In more technical words, this suggests that by now the eruption entered a so-called magmatic phase where fresh lava arrives at the surface (as opposed to ash emissions from mostly pulverized older rocks, which might have been the activity so far). The head of the Center for Volcanology and Geological Disaster Mitigation, Edi Prasojo, said that" Bromo has entered an eruption phase", the article mentions.
On a side note, incandescent ejected rocks alone, however, do not necessarily (although often) mean that they are from fresh magma. In some cases, they can also be older, very hot rocks from the conduit ejected by phreatic activity). An analysis of a sample or the ash would tell the difference.
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Koppelingen / Bronnen:
  • Mount Bromo Erupting Lava (Tempo.co)
Vorig nieuws
Ash emission from Bromo yesterday (image via jaime s. sincioco ‏@jaimessincioco / twitter)
Wednesday, Jan 13, 2016
Ash emissions of varying intensity have been near continuous during the past weeks. ... [meer...]
Ash emissions from Bromo on 15 Dec 2015 (photo: Oystein L. Andersen @OysteinLAnderse / twitter)
Wednesday, Dec 16, 2015
Ash emissions of varying intensity continue from the volcano, producing a plume that rises approx. 500-1500 m above the crater: ... [meer...]
Ash emissions from Bromo in early Dec (photo via @jaimessincioco / twitter)
Friday, Dec 11, 2015
Activity at the volcano has increased during the past two weeks. Ash emissions of fluctuating intensity began early December and have been near-continuous. ... [meer...]
Bromo volcano this morning (PVMBG)
Saturday, Dec 05, 2015
An eruption warning was issued this morning - PVMBG raised the volcano's alert status to "siaga" (alert), or 3 on a scale of 1-4. ... [meer...]
Sunday, Nov 15, 2015
A phase of increased unrest seems to have started at the volcano. On 1 November, the local volcano observatory issued a warning not to approach Bromo within 1 km radius, as changes in seismic activity and increased steaming/degassing (including sulfur dioxide) had been noted. ... [meer...]

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.


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