Lewotolo

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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 8.272°S
  • 123.505°E

  • 1423 m
    4667 ft

  • 264230
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

25 January-31 January 2012

On 25 January CVGHM lowered the Alert Level for Lewotolo from 3 to 2 (on a scale of 1-4) based on decreased seismicity and visual observations during 5-15 January. During 5-15 January fumarolic plumes rose 200-500 m above the summit and incandescence was observed.

Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) also known CVGHM



 Available Weekly Reports


2012: January
2011: December
2004: July


25 January-31 January 2012

On 25 January CVGHM lowered the Alert Level for Lewotolo from 3 to 2 (on a scale of 1-4) based on decreased seismicity and visual observations during 5-15 January. During 5-15 January fumarolic plumes rose 200-500 m above the summit and incandescence was observed.

Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) also known CVGHM


4 January-10 January 2012

According to news articles, 500 people have evacuated their homes on 6 January because of increased activity at Lewotolo. Black smoke rose from the crater and rumbling sounds were reported. On 2 January CVGHM raised the Alert Level from 2 to 3 (on a scale of 1-4).

Sources: Jakarta Globe, BNO News


28 December-3 January 2012

CVGHM reported that white plumes rose 50-250 m above the summit of Lewotolo during the month of December. Seismicity increased on 31 December and intensified on 2 January, the same day incandescence was observed. Based on visual and seismic observations, CVGHM raised the Alert Level from 1 to 2 (on a scale of 1-4) on 2 January, then later that day raised the Alert Level to 3.

Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) also known CVGHM


28 July-3 August 2004

DVGHM stated that the pilot report of a plume emitted from Lewotolo on 25 June was false. Further investigation revealed that the emission was actually from Egon.

Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) also known CVGHM


21 July-27 July 2004

A pilot reported that a thin plume emitted from Lewotolo was at a height of ~300 m above the summit on 25 July. Ash was not visible on satellite imagery.

Source: Darwin Volcanic Ash Advisory Centre (VAAC)


Summary of eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
2012 Jan 2 2012 Jan 14 Confirmed 1 Historical Observations Summit
1951 Dec 15 Unknown Confirmed 2 Historical Observations
1920 Unknown Confirmed 2 Historical Observations
1899 Jun 2 Unknown Confirmed 2 Historical Observations
1864 Unknown Confirmed 2 Historical Observations
1852 Oct 5 1852 Oct 6 Confirmed 2 Historical Observations K2 crater
1849 Oct 6 Unknown Confirmed 2 Historical Observations
1819 Unknown Confirmed 2 Historical Observations
1660 Unknown Confirmed 3 Historical Observations

The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.

Kusumadinata K, 1979. Data Dasar Gunungapi Indonesia. Bandung: Volc Surv Indonesia, 820 p.

Neumann van Padang M, 1951. Indonesia. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 1: 1-271.

Stolz A J, Varne R, Davies, G R, Wheller G E, Foden J D, 1990. Magma source components in an arc-continent collision zone: the Flores-Lembata sector, Sunda arc, Indonesia. Contr Mineral Petr, 105: 585-601.

Wheller G E, Varne R, Foden J D, Abbott M J, 1987. Geochemistry of Quaternary volcanism in the Sunda-Banda arc, Indonesia, and three-component genesis of island-arc basaltic magmas. J Volc Geotherm Res, 32: 137-160.

Anchoring the eastern end of an elongated peninsula that is connected to Lembata (formerly Lomblen) Island by a narrow isthmus and extends northward into the Flores Sea, Lewotolo rises to 1423 m. Lewotolo is a symmetrical stratovolcano as viewed from the north and east. A small cone with a 130-m-wide crater constructed at the SE side of a larger crater forms the volcano's high point. Many lava flows have reached the coastline. Historical eruptions, recorded since 1660, have consisted of explosive activity from the summit crater.