Mount Egon is an active stratovolcano on Flores Island, Indonesia, reaching a height of 1,703 meters. A prominent lava dome sits at its summit, while a 350-meter-wide crater often houses a crater lake. The volcano’s slopes are constructed from andesitic lava flows and pyroclastic deposits, testaments to its history of both effusive and explosive eruptions. Egon’s geological evolution is characterized by a cyclical pattern: lava dome growth, followed by collapse, which in turn generates pyroclastic flows and lahars. Fumaroles within the crater and along its flanks indicate ongoing hydrothermal activity.
| Location: | Flores Island, Indonesia |
| Coordinates: | -8.678143, 122.453375 |
| Volcano Type: | Stratovolcano |
Egon’s Location
Egon’s Latest Status
2024: Extreme Pursuit visited Egon in October and observed vigorous fumarolic activity, with one particularly active vent in the southern section of the crater.
Egon’s Eruptive History
| Year | Eruptive Activity |
|---|---|
| 1888-1891 | Reports of “smoke” observed above the summit, likely stemming from fumarolic activity rather than a true eruption. |
| 1907 | Strong “smoke” emission reported, but potentially confused with activity from the nearby Lewotobi Lakilaki volcano. |
| 2004 | On January 29th, a landslide occurred on the eastern crater wall, followed by an explosive eruption that generated an ash plume reaching 750 meters above the summit. Loud rumbling noises and ash emissions persisted for several days. A new solfatara formed on the volcano’s southern flank. Further explosions and ash emissions were reported in July. |
| 2008 | Increased activity, including ash plumes reaching up to 2,000 meters, and an increase in seismic activity, prompting evacuations of nearby villages. The eruption was characterized as phreatic, driven by the interaction of magma and water. |
| 2010 | Elevated activity commenced in March with increased seismicity and ash plumes. Gas emissions and ashfall impacted surrounding areas, leading to the raising of alert levels. |
| 2012-2013 | Intermittent ash emissions and increased seismicity were observed, indicating continued unrest within the volcano. |
| 2024 | Ongoing unrest with fluctuating alert levels due to persistent gas emissions and seismic activity. Minor ash emissions have been reported, and the potential for renewed eruptive activity remains. |
Egon Monitoring
For monitoring of Indonesian Volcanoes, please refer to PVMBG.
Egon Images
