Historedia
Asia PacificEvent

Eruption of Mount Papandayan

When
1772
Where
Mount Papandayan, Garut Regency, West Java; Summit of Mount Papandayan
Episodes
2

In 1772 Mount Papandayan, a complex stratovolcano in West Java's Garut Regency, erupted and its northeast flank collapsed, unleashing a debris avalanche that destroyed 40 villages and killed nearly 3,000 people. The catastrophe reshaped the volcano into a broad twin-peaked form, and no large eruption followed until 2002.

Episodes

  1. 1772 · Mount Papandayan, Garut Regency, West JavaEruption and Catastrophic Debris Avalanche

    An eruption collapsed Papandayan's northeast flank, sending a debris avalanche that destroyed 40 villages and killed nearly 3,000 people.

  2. 1772 · Summit of Mount PapandayanTruncation into a Twin-Peaked Volcano

    The eruption truncated the volcano into a broad form with two peaks and a 1.1 km flat area containing the Alun-Alun crater.

Background and detail

Background. Mount Papandayan is a complex stratovolcano situated in Garut Regency, southeast of Bandung in West Java, Indonesia. West Java itself lies between Banten and Jakarta to the west, the Java Sea to the north, Central Java to the east, and the Indian Ocean to the south, situating the volcano within that province.

Eruption and Flank Collapse. In 1772 an eruption caused the volcano's northeast flank to collapse, generating a catastrophic debris avalanche. The disaster destroyed 40 villages and killed nearly 3,000 people. The supplied sources date the eruption only to the year 1772; a more precise day is not confirmed by the retrieved passages.

Geological Aftermath. The eruption truncated the volcano into a broad shape with two peaks and a flat area about 1.1 km wide, with the Alun-Alun crater at its center. This gave the mountain the appearance of a twin volcano, one peak called Papandayan and the other Mount Puntang. Only small phreatic eruptions occurred in the following centuries until an explosive eruption began in November 2002.

Sources

  1. Mount Papandayan Wikipedia, revision of 2026-08-15
  2. West Java Wikipedia, revision of 2026-09-12

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.