Lamongan Volcano

Updated: Jul 19, 2025 10:45 GMT - refresh

stratovolcano

East Java (Indonesia), -7.98°S / 113.34°E

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Summit height: 1651 m / 5,417 ft

Current status: normal or dormant (1 out of 5)

Last update: 9 Dec 2021 (Smithsonian / USGS Weekly Volcanic Activity Report)

Lamongan is a small stratovolcano in East Java located between the larger Tengger and Iyang-Argapura volcanoes. It is surrounded by numerous craters and cinder cones, forming a volcanic zone stretching 25 km E-W and 16 km N-S., and covering an area of 260 km2.
The volcano had many eruptions in the 19th century, but has probably not erupted since. It is remarkable and unusual for a subduction zone volcano for its many flank vents and relatively effusive eruption style. In the period of intense activity between 1799 and 1898, there were up to 15 basaltic lava flow eruptions.

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News/Updates | Earthquakes

Typical eruption style: Effusive and mildly explosive
Lamongan volcano eruptions: 2003(?), 1953(?), 1898, 1896, 1893, 1891, 1890-91, 1890, 1889, 1888, 1887-88, 1887, 1885-86, 1884, 1883, 1877, 1874, 1872, 1870-71, 1870, 1869, 1869, 1864, 1861, 1859, 1856, 1849, 1847, 1847, 1843-44, 1841-42, 1838, 1830, 1829, 1826, 1824, 1821-22, 1818, 1817, 1808, 1806, 1799

Latest nearby earthquakes

Date and Time	Mag / Depth	Distance / Location
Jul 19, 03:45 am (GMT +7)	2.7 17 km	9.2 km (5.7 mi) to the E	Java, Indonesia I FELT IT	Info
Jul 19, 03:09 am (GMT +7)	2.8 27 km	15 km (9.5 mi) to the E	Java, Indonesia	Info
Jul 18, 10:35 pm (GMT +7)	3.4 10 km	6.4 km (4 mi) to the SE	Java, Indonesia I FELT IT	Info
Jul 18, 07:19 pm (GMT +7)	3.3 8 km	5.4 km (3.4 mi) to the SE	Java, Indonesia I FELT IT - 1 report	Info
Thursday, July 17, 2025 GMT (6 quakes)
Jul 17, 11:48 pm (Universal Time)	2.7 10 km	9.8 km (6.1 mi) to the E	Java, Indonesia I FELT IT	Info
Jul 17, 11:31 pm (Universal Time)	2.7 10 km	8.3 km (5.1 mi) to the W	Java, Indonesia I FELT IT	Info
Jul 18, 05:55 am (GMT +7)	3.4 10 km	6.3 km (3.9 mi) to the SE	Java, Indonesia I FELT IT	Info
Jul 17, 10:50 pm (Universal Time)	2.9 10 km	8.9 km (5.6 mi) to the SE	Java, Indonesia I FELT IT	Info
Jul 18, 04:03 am (GMT +7)	3.3 10 km	7.5 km (4.7 mi) to the E	Java, Indonesia I FELT IT - 1 report	Info

View recent quakes

Background

The currently active cone of Lamongan has been constructed 650 m to the SW of Gunung Tarub, the volcano's highest point. As many as 27 maars with diameters from 150 to 700 m, some containing crater lakes, and about 60 cinder and spatter cones surround Lamongan volcano to form a wide field.
Some of the maars contain lakes, such as Ranu Pakis, Ranu Klakah, and Ranu Bedali, 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 the possibility of renewed activity from low-lying flank vents pose a significant risk because of the hazard of surges, ballistic ejections and ash fall.
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Source: GVP

Significant volcanic eruptions: Lamongan volcano

In the past 10,000 years, Lamongan has had at least 41 confirmed eruptions, all documented by historical records or observations. There is one uncertain or discredited eruption in 1953 from Lamongan volcano.

The table below lists all known eruptions (date in bold face) of Lamongan volcano since around 1800. Updates on the most recent volcanic activity of Lamongan can be found on the news page of Lamongan volcano.

Date	Note	VEI	Deaths
?? 1953 Apr 4 - Jun 16 ±15 d.	Uncertain Eruption	2?
1898 Feb 5 - Feb 15	SW flank 400 m (Mt. Anyar) Historical obs./docs.	2
1896 Sep 5 - Sep 19 or later	Historical obs./docs.	2
1893 Nov 18	Historical obs./docs.	2
1891 Sep 25 ±5 d. - Oct 5 ±4 d.	Historical obs./docs.	2
1890 Sep 5 ±4 d. - 1891 Jan	Historical obs./docs.	2
1890 Mar 23 ±8 d. - May	Historical obs./docs.	2
1889 Sep 7 - Nov	Historical obs./docs.	2
1888 Sep - Oct 6	Historical obs./docs.	2
1887 Nov - 1888 Feb 27	Historical obs./docs.	2
1887 Jul 3 ±1 d. - Jul 9	Historical obs./docs.	2
1885 Mar 11 - 1886 Oct 15 ±5 d.	Historical obs./docs.	2
1884 Jan 6 - Jun 23	Historical obs./docs.	2
1883 Apr 13 - May 4 ±1 d.	Historical obs./docs.	2
1877 Apr 24 ? - May 12 ?	Historical obs./docs.	3?
1874 May 20 - Aug 21	Historical obs./docs.	2
1872 Aug 15 - Sep 18	Historical obs./docs.	2
1870 Aug 18 - 1871 Feb 5 ±1 d.	Summit and SW flank Historical obs./docs.	2
1870 Mar 2 - Mar 5	Historical obs./docs.	2
1869 Sep 12	Historical obs./docs.	2
1869 Aug (eruption 1869 Sep 12)	Historical obs./docs.	2	8	Info
1869 Aug: Ashfall and volcanic bombs killed 8, Neumann van Padang cites rock avalanches. Cited references #1412 Simkin, Tom, and Lee Siebert with the collaboration of Russell Blong, Jonathan Dehn, Christopher Newhall, Roland Pool, and Thomas C. Stein (1994): Volcanoes of the World, Second Edition, A Regional Directory, Gazetteer, and Chronology of Volcanism During the Last 10,000 Years, Geoscience Press, Inc., Tucson, Arizona, in association with Smithsonian Institution, Global Volcanism Program, Washington, D.C., p. 164-176. #1661 Van Padang, M. Neumann (1951): Catalogue of the Active Volcanoes of the World including Solfatara Fields, Part I, Indonesia. International Volcanological Association, Napoli, Italy, 271 p. Source: NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database. doi:10.7289/V5TD9V7K
1869 Apr 6 - May 4	Summit and south slope Historical obs./docs.	2
1864 Jun 9 - Jul	Historical obs./docs.	2
1861	Historical obs./docs.	2
1859 Feb 27 - Mar	Historical obs./docs.	2
1856 Mar 1 - Jun 14	Historical obs./docs.	2
1849 Jun - Sep	Summit and north flank Historical obs./docs.	2
1847 Sep 25	Historical obs./docs.	2
1847 Mar 26 - Jun 26	Historical obs./docs.	2
1843 Aug - 1844 Sep	Historical obs./docs.	2
1843 Aug (eruption 1843 Aug - 1844 Sep)	Historical obs./docs.	2	4	Info
1843 Aug: Cause unknown. Cited references #1412 Simkin, Tom, and Lee Siebert with the collaboration of Russell Blong, Jonathan Dehn, Christopher Newhall, Roland Pool, and Thomas C. Stein (1994): Volcanoes of the World, Second Edition, A Regional Directory, Gazetteer, and Chronology of Volcanism During the Last 10,000 Years, Geoscience Press, Inc., Tucson, Arizona, in association with Smithsonian Institution, Global Volcanism Program, Washington, D.C., p. 164-176. Source: NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database. doi:10.7289/V5TD9V7K
1841 Jul 16 - 1842 Aug	Historical obs./docs.	2
1838 Oct 18	Historical obs./docs.	2
1838 Jul 4 - Jul 6	Historical obs./docs.	2
1830 Feb - Mar	Historical obs./docs.	2
1829 Jan - Feb	Historical obs./docs.	2
1826	Historical obs./docs.	2
1824 Jan 1 ? - Jan 31 ?	Historical obs./docs.	2
1821 Dec 15 ±5 d. - 1822 Jan 5	Historical obs./docs.	2
1818 Oct 8	Historical obs./docs.	2
1817	Historical obs./docs.	2
1808 Dec 8	Historical obs./docs.	2
1806 May	Historical obs./docs.	2

Remark:

Our list of volcanic eruptions closely follows the database of eruptions of the Smithsonian's Global Volcanism Project (GVP), the internationally most recognized data source for volcanic eruptions, but also includes significant eruptive episodes or related volcano events. "Volcanic eruptions" are usually to be understood as sequences of individual eruptive episodes that can follow each other, or even overlap (if several vents are involved), and can last many years, decades or even longer. For example, the current activity of Stromboli volcano is understood as a single eruption that has been ongoing since 1934.

Sources: NOAA National Centers for Environmental Information (NCEI), Global Significant Volcanic Eruptions Database. doi:10.7289/V5TD9V7K | Global Volcanism Project / Smithsonian Institution

Eruptions of Lamongan volcano

1970 activity & measurements
"Measurement of solfatar temperature in the bottom of the crater resulted 55°C - 95°C. Whereas fumarola did 42° - 55°C.
Temperature of spring nearby the flank, such as Pancuran Spring : 27°C, Pengaron : 28°C, Petung : 26°C, while the average of lakes temperature around the volcano increased from 29°C to 30°C. During transitional season, May - July, the water became dark and many fishes died."
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From: Directorate of Volcanology and Geological Hazard Mitigation (formerly Volcanic Survey of Indonesia, VSI)

1933 possible eruption
On 16 May 1933 detonations and "underground rumblings" (audible tremor?) were heard at Lamongan volcano. New fractures opened at the volcano on the night of 17-18 March, but no lava was reported.
Source:
"Report on the volcanic activity and volcanological research in indonesia during the period 1936–1948", R. W. van Bemmelen, Bulletin of Volcanology
Volume 9, Number 1, 3-29, December 1949

1924-25 possible eruptions
Underground rumblings and explosions were heard at Lamongan volcano, indicating phreatic activity might have occurred. No deposits can however be confirmed coming from this eruptive period.

1869 eruption - 8 fatalities
On 6 April 1869, at 07.00, activity from Lamongan increased and a lava flow occurred that burnt 6 houses in Solok village. On 12 September, an explosion took place at the main crater, killing 8 people.
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Source: Neumann van Padang M, 1951. Indonesia. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 1, 1-271, p 149

1847 eruption
This is how one of the typical eruptions of Lamongan were described:
"March 26 - June 26, normal eruption took place at the main crater, parasiter, lava flowing. Every 15 minutes smoke eruption occurred and generated volcanic bomb. On March 30, lava flowed from the summit as far as 167 m. Since May, the activities were up and down. On September 25, occurred ash rain and movement the crater southeastward."
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Source: Neumann van Padang M, 1951. Indonesia. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 1: 1-271 (p. 149)

Lamongan Volcano FAQ

+When was the last eruption of Lamongan volcano?

The last confirmed eruption of Lamongan occurred in 1898.

+How often does Lamongan volcano erupt?

Since 1799, Lamongan volcano has had at least 41 historically documented eruptions. This means that it erupts on average every 5.5 years.

+When was the largest eruption of Lamongan volcano?

The largest eruption of Lamongan volcano in historic times occurred in 1877. It ranks as a "vulcanian" eruption with a magnitude 3 on the VEI (Volcanic Explosivity Index) scale.

Latest satellite images

See also: Sentinel hub | Landsat 8 | NASA FIRMS

Latest satellite images

Lamongan Volcano Maps

Below is a selection of maps showing the location and surroundings of the volcano at various resolutions based on aerial-imagery / terrain maps. Feel free to use them for non-commercial purposes on your blog or website as long as you credit them with a link back to this page (click to copy it).