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Arjuno-Welirang

Stratovolcano · Indonesia · 3343m

The volcanoes of Arjuno (right-center) and Welirang (left) are seen here NE of cultivated land. A line of cones have formed across the southern flank of Gunung Arjuno and extends to its eastern flank. Fumarolic areas with sulfur deposition occur at several locations on Gunung Welirang.
The volcanoes of Arjuno (right-center) and Welirang (left) are seen here NE of cultivated land. A line of cones have formed across the southern flank of Gunung Arjuno and extends to its eastern flank. Fumarolic areas with sulfur deposition occur at several locations on Gunung Welirang. · Photo: Anonymous, date unknown. · Wikimedia Commons
Type
Stratovolcano
Country
Indonesia
Region
Sunda-Banda Volcanic Regions / Sunda Volcanic Arc
Elevation
3343m
Coordinates
-7.733, 112.575
Last eruption
1952
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Composite
Major rock type
Andesite / Basaltic Andesite
Geological summary

The Arjuno and Welirang volcanoes anchor the SE and NW ends, respectively, of a 6-km-long line of volcanic cones and craters. The complex overlies most of the Gunung Ringgit edifice, whose summit is about 3 km NE from the main ridge. Pyroclastic cones are located on the north flank of Gunung Welirang and along an E-W line cutting across the southern side of Gunung Arjuno that extends to the lower SE flank. Fumarolic areas with sulfur deposition occur at several locations on Welirang.

From Wikipedia

Mount Arjuno-Welirang is a stratovolcano in the province of East Java in Java, Indonesia. Mount Arjuno-Welirang lies about 50 kilometers south of Surabaya, and 20 kilometers north of Malang. It is a twin volcano, with the 'twins' being Arjuno and Welirang. There is at least one other stratovolcano in the area, and around 10 pyroclastic cones nearby. They are located in a 6 km line between Arjuno and Welirang. The Arjuno-Welirang volcanic complex itself lies in the older two volcanoes, Mount Ringgit to the east and Mount Linting to the south. The summit lacks vegetation. Fumarolic areas with sulfur deposits are found in several locations in Welirang.

Wikipedia · CC BY-SA · Read full article →

Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
1950~1954 · 2 eruptions · max VEI 21987~1991 · 1 eruptions · max VEI ?19501958197119791987

Detailed timeline

  1. 1991VEI ?Geological estimate
    1991-09-13 – Ongoing
    Gunung Welirang
  2. 1952VEI 0Observed
    1952-08-15 – Ongoing
    NW flank (Kawah Plupuh)
  3. 1950VEI 2Observed
    1950-10-30 – Ongoing
    NW part of Gunung Welirang (2500 & 2700 m)

External links

⚠ For reference only. Not for emergency response.