| Mount Dempo | |
|---|---|
| Gunung Dempo | |
.jpg) Mount Dempo in 2018 | |
| Highest point | |
| Elevation | 3,142 m (10,308 ft) |
| Prominence | 2,450 m (8,040 ft) |
| Listing | Ultra Ribu |
| Coordinates | 4°00′57″S 103°07′42″E / 4.01583°S 103.12833°E |
| Geography | |
  Mount Dempo Location within Sumatra  Mount Dempo Location within Indonesia | |
| Location | Sumatra, Indonesia |
| Parent range | Bukit Barisan |
| Geology | |
| Stratovolcano | |
| Volcanic arc | Sunda Arc |
| Last eruption | 21 August 2023 |
Mount Dempo is the highest stratovolcano in South Sumatra province that rises above Pasumah Plain near Pagar Alam and adjacent with Bengkulu Province. Seven craters are found around the summit. A 400-metre (1,300 ft) wide lake is found at the north-west end of the crater complex.
Historical activity has been confined to being small-to-moderate explosive activity that produced ashfall near the volcano.
Recent activity includes:
- A phreatic eruption on January 1, 2009.
- July 19, 2023 Steam and ash plume rose 1.3 km above the summit.
- August 21, 2023 at 1:54 AM (GMT+7), a small phreatic explosion occurred causing small pyroclastic flows to ride down the northwest slope a few hundred meters downward, resulting to no injuries nor any damage to the surrounding landscape other than the volcano itself, lasting no more than 239s/3m59s.
- April 7, 2026 01:37 A phreatic eruption lasted nearly three minutes.
The Royal Rotterdam Lloyd Dutch shipping company named and operated a fine passenger liner named 'Dempo' from 1931 to 1944 between Europe and South Asia.
