Lamongan

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  • Indonesia
  • Java
  • Stratovolcano
  • 1898 CE
  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 7.979°S
  • 113.342°E

  • 1651 m
    5415 ft

  • 263320
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

18 April-24 April 2012

CVGHM reported that, although weather conditions often prevented observations of Lamongan during 9 March-17 April, white plumes were occasionally seen rising 10-20 m above the crater rim. Seismicity decreased during this period. CVGHM lowered the Alert Level to 1 (on a scale of 1-4) on 19 April.

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



 Available Weekly Reports


2012: March | April
2003: September


18 April-24 April 2012

CVGHM reported that, although weather conditions often prevented observations of Lamongan during 9 March-17 April, white plumes were occasionally seen rising 10-20 m above the crater rim. Seismicity decreased during this period. CVGHM lowered the Alert Level to 1 (on a scale of 1-4) on 19 April.

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


7 March-13 March 2012

CVGHM reported that during 1 February-9 March diffuse white plumes rose at most 20 m above Lamongan. Seismicity increased on 23 February, then fluctuated in intensity through 7 March. Seismicity increased significantly on 8 March and tremor was recorded continuously the next day. CVGHM raised the Alert Level to 2 (on a scale of 1-4) on 9 March. Residents and tourists were prohibited from going within a 1-km-radius of the active crater.

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


24 September-30 September 2003

According to a report from aircraft personnel, on 24 September ash was visible rising to ~900 m above Lamongan. 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
[ 1953 Apr 4 ] [ 1953 Jun ] Uncertain 2  
1898 Feb 5 1898 Feb 15 Confirmed 2 Historical Observations SW flank 400 m (Mt. Anyar)
1896 Sep 5 1896 Sep 19 (in or after) Confirmed 2 Historical Observations
1893 Nov 18 Unknown Confirmed 2 Historical Observations
1891 Sep 25 ± 5 days 1891 Oct 5 ± 4 days Confirmed 2 Historical Observations
1890 Sep 5 ± 4 days 1891 Jan (in or after) Confirmed 2 Historical Observations
1890 Mar 23 ± 8 days 1890 May Confirmed 2 Historical Observations
1889 Sep 7 1889 Nov Confirmed 2 Historical Observations
1888 Sep 1888 Oct 6 Confirmed 2 Historical Observations
1887 Nov 1888 Feb 27 Confirmed 2 Historical Observations
1887 Jul 3 ± 1 days 1887 Jul 9 Confirmed 2 Historical Observations
1885 Mar 11 1886 Oct 15 ± 5 days Confirmed 2 Historical Observations
1884 Jan 6 1884 Jun 23 Confirmed 2 Historical Observations
1883 Apr 13 1883 May 4 ± 1 days Confirmed 2 Historical Observations
1877 Apr 24 (?) 1877 May 12 (?) Confirmed 3 Historical Observations
1874 May 20 1874 Aug 21 Confirmed 2 Historical Observations
1872 Aug 15 1872 Sep 18 Confirmed 2 Historical Observations
1870 Aug 18 1871 Feb 5 ± 1 days Confirmed 2 Historical Observations Summit and SW flank
1870 Mar 2 1870 Mar 5 Confirmed 2 Historical Observations
1869 Sep 12 Unknown Confirmed 2 Historical Observations
1869 Apr 6 1869 May 4 Confirmed 2 Historical Observations Summit and south slope
1864 Jun 9 1864 Jul Confirmed 2 Historical Observations
1861 Unknown Confirmed 2 Historical Observations
1859 Feb 27 1859 Mar Confirmed 2 Historical Observations
1856 Mar 1 1856 Jun 14 Confirmed 2 Historical Observations
1849 Jun 1849 Sep Confirmed 2 Historical Observations Summit and north flank
1847 Sep 25 Unknown Confirmed 2 Historical Observations
1847 Mar 26 1847 Jun 26 Confirmed 2 Historical Observations
1843 Aug 1844 Sep Confirmed 2 Historical Observations
1841 Jul 16 1842 Aug Confirmed 2 Historical Observations
1838 Oct 18 Unknown Confirmed 2 Historical Observations
1838 Jul 4 1838 Jul 6 Confirmed 2 Historical Observations
1830 Feb 1830 Mar Confirmed 2 Historical Observations
1829 Jan 1829 Feb Confirmed 2 Historical Observations
1826 Unknown Confirmed 2 Historical Observations
1824 Jan 1 (?) 1824 Jan 31 (?) Confirmed 2 Historical Observations
1821 Dec 15 ± 5 days 1822 Jan 5 Confirmed 2 Historical Observations
1818 Oct 8 Unknown Confirmed 2 Historical Observations
1817 Unknown Confirmed 2 Historical Observations
1808 Dec 8 Unknown Confirmed 2 Historical Observations
1806 May Unknown Confirmed 2 Historical Observations
1799 Unknown Confirmed 2 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.

Bronto S, Situmorang T, Effendi W, 1986. Geologic map of Lamongan volcano, Lumajang, East Java. Volc Surv Indonesia, 1:50,000 geol map.

Carn S A, 1999. Application of synthetic aperture radar (SAR) imagery to volcano mapping in the humid tropics: a case study in East Java, Indonesia. Bull Volc, 61: 92-105.

Carn S A, Pyle D M, 2001. Petrology and geochemistry of the Lamongan volcanic field, east Java, Indonesia: primitive Sunda arc magmas in a extensional tectonic setting?. J Petr, 42: 1643-1683.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Katsui Y (ed), 1971. List of the World Active Volcanoes. Volc Soc Japan draft ms, (limited circulation), 160 p.

Mulyadi E, Zaennudin, Wahyudin D, Dana I N, 2000. Guide book for field excursion at Lamongan, Semeru, Bromo-Tengger volcanic complex, East Java, 13-17 July 2000. IAVCEI General Assembly, Bali 2000 Excursion Guide, 28 p.

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

Lamongan, a small 1631-m-high stratovolcano located between the massive Tengger and Iyang-Argapura volcanic complexes, is surrounded by numerous maars and cinder cones. The currently active cone has been constructed 650 m to the SW of Gunung Tarub, the volcano's high point. As many as 27 maars with diameters from 150 to 700 m, some containing crater lakes, surround the volcano, along with about 60 cinder cones and spatter cones. Lake-filled maars, including Ranu Pakis, Ranu Klakah, and Ranu Bedali, are located on the eastern and western flanks; dry maars are predominately located on the northern flanks. None of the Lamongan maars has erupted during historical time, although several of the youthful maars cut drainage channels from Gunung Tarub. Lamongan was very active from the time of its first historical eruption in 1799 through the end of the 19th century, producing frequent explosive eruptions and lava flows from vents on the western side of the volcano ranging from the summit to about 450 m elevation.