The Volcano Adventure Guide: Excellent information and background for anyone wishing to visit active volcanoes safely and enjoyably. The book presents guidelines to visiting 42 different volcanoes around the world.
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.
Stratovolcano 2329 m / 7,641 ft East Java, Indonesia, -7.94°S / 112.95°E Current status: minor activity or eruption warning (3 out of 5) Bromo webcams / live data Bromo volcano videos Bromo volcano books | Tours 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 - ongoing Typical eruption style: Explosive. Frequent small, phreatic eruptions at Bromo cinder cone on the bottom of the caldera.
Last earthquakes nearby
The volcano remains highly restless with fluctuating intensity of degassing and ash venting. A peak of activity took place during 6-8 Oct when intense degassing and near-continuous ash emissions occurred in longer phases. ...more
Weak incandescence, probably from hot gasses, was seen from the crater. Activity has now decreased again a bit during the past 2 days. The alert level remains at 3 ("siaga", alert) on a scale of 1 (lowest) - 4 (highest). [less]
Degassing plume from Bromo on 27 Sep 2016 (image: PVMBG)
The activity at the volcano has again picked up during the past week. An increase of seismic activity and inflation (swelling of the edifice probably caused by magma intrusion) triggered PVMBG to raise the alert status to the second highest level 3 ("siaga", alert). ...more
At the surface, Bromo shows increased degassing and light ash venting only, generating a plume that rose to 50-600 m height, but more activity could be in the making. [less]
Ash emission from Bromo this morning (photo: xbeechunettex /Instagram)
Ash emissions continue at fluctuating levels. A stronger phase of emissions yesterday produced a plume that rose approx. 1200 meters and drifted in westerly directions over Malang, forcing a temporary closure of the city's regional Abdul Rachman Saleh airport.
Ash emission from Bromo this morning (photo: Andi / VolcanoDiscovery Indonesia)
Our expedition leader Andi currently on location reported that the volcano's activity has been increased since 4 days ago, with visible activity consisting of mild phreatic explosions and strong steaming. ...more
The volcano observatory has been registering continuous tremor as well. Small ballistic ejecta (bombs) can be seen from the rim of the crater.
Ash fall in Cemoro Lawang (photo: Andi / VolcanoDiscovery Indonesia)
Ash emission from Bromo yesterday (image: PVMBG / Instagram)
New ash emissions resumed at the volcano again since yesterday. A plume of steam and moderate ash content been rising a few hundred meters and drifting approx. 40 km into westerly directions over East Java. ...more
No additional details about the activity from the volcano observatory are currently available. [less]
The latest eruptive cycle of the volcano might have ended. No more eruptions (explosions, ash emissions) have been observed during the past 2 weeks and seismic activity has returned to normal levels as well, our friend Oystein Andersen from Jakarta reported. ...more
You can find photos and more detailed reports of the latest eruption at his website. [less]
The eruption continues in the form of intermittent small to moderate strombolian-type explosions and minutes-long phases of more or less vigorous ash venting alternating with strong degassing. Only few incandescent ejecta are being seen at night, but ash emissions are comparably intense and aviation color code of the volcano remains at orange. ...more
Our friend Øystein Lund Andersen visited the volcano yesterday and reported: "Heavy degassing was observed during arrival in the afternoon, accompanied by a irregular but periodically heavy rumbling sound. ... After these periods of calm, larger degassing plumes tend to appear, accompanied by large rumbling sounds and in one case an eruption at 14:14. The eruption was accompanied by a shock wave, and seconds after an ash plume appeared that reached around 800m in height. Sounds of falling rocks or blocks was heard seconds after the appearance of the eruption plume. The ash content decreased within 30min after the eruption.
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. ...more
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. [less]
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.
Volcano & eruption special tours: Tours dedicated to usually a single volcano currently in eruption. These trip, sometimes offered only last-minute through our newsletter, are among the most adventurous and most popular in our program.
Volcanic crisis at Sakurajima - updates: A strong earthquake swarm and increased inflation were detected in August 2015 and triggered authorities to raise the alert level, as volcanologists think that a larger eruption could follow. News and updates on the events can be found on this page.
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