Lewotolok

Mount Ile Lewotolok, an active stratovolcano on Lembata Island, Indonesia, is characterised by its complex summit crater system and production of basaltic andesite and andesite lavas. Formed due to the subduction of the Indo-Australian Plate beneath the Eurasian Plate, Lewotolok has a history of diverse eruptive activity dating back to the 17th century, including Strombolian eruptions, Vulcanian eruptions, and lava flows. These eruptions pose significant hazards such as ashfall, pyroclastic flows, and lahars, impacting local communities and aviation.

Location:	Lembata Island, Indonesia
Coordinates:	-8.272183, 123.505942
Volcano Type:	Stratovolcano

Lewotolok’s Location

Lewotolok’s Latest Status

2024: Level 2. Extreme Pursuit visited and observed strong degassing.

Lewotolok’s Eruptive History

Year	Eruptive Overview
1660	Likely the largest eruption in recorded history. Ashfall may have impacted areas far beyond Lembata Island. Potential for significant lava flows and pyroclastic flows. (Estimated VEI 3)
1819	Eruption documented, but specific details are scarce. Possible ash emissions and minor explosive activity.
1849	Ash emissions reported, impacting local communities. Intensity and duration of the eruption are unknown.
1852	Eruption documented, but specific details are scarce. Possible Strombolian activity or minor ash emissions.
1864	Eruption documented, but specific details are scarce. Possible phreatic activity (steam-driven explosions) or minor ash emissions.
1899	Eruption documented, but specific details are scarce. Possible Strombolian activity or minor lava flows.
1920	Effusive eruption with lava flows reported. Flows may have reached lower flanks of the volcano, potentially impacting settlements.
1951	Significant eruption with notable ashfall impacting a wide area. Possible lava flows and pyroclastic flows. May have caused disruption to local communities.
2012	Increased activity with ash plumes reaching several kilometers in height. Incandescent ejecta observed at night, indicating Strombolian activity.
2017	Elevated activity with ash plumes and gas emissions. Minor explosions reported. Increased seismic activity detected.
2020-2022	Major eruption with significant ash emissions reaching up to 15 km in height, impacting aviation. Sustained Strombolian explosions, lava flows reaching the coastline, and pyroclastic flows. Caused widespread evacuations and significant disruption to local communities.
2024	Continuing activity with intermittent ash plumes, gas emissions, and occasional lava flows. Strombolian explosions and minor ashfall events observed. Ongoing monitoring and potential for increased activity.

Lewotolok Monitoring

For monitoring of Indonesian Volcanoes, please refer to PVMBG.

Lewotolok’s Location

Lewotolok’s Latest Status

Lewotolok’s Eruptive History

Lewotolok Monitoring

Lewotolok Images