The launch of a new GVP website is scheduled for Monday, May 20, 2013.
| Country: | Indonesia | ||
| Subregion Name: | Sulawesi (Indonesia) | ||
| Volcano Number: | 0606-04= | ||
| Volcano Type: | Caldera | ||
| Volcano Status: | Fumarolic | ||
| Last Known Eruption: | Unknown | ||
| Summit Elevation: | 1549 m | 5,082 feet | |
| Latitude: | 1.13°N | 1°8'0"N | |
| Longitude: | 124.758°E | 124°45'30"E | |
| The 1549-m-high Sempu stratovolcano was constructed within the 3-km-wide Sempu caldera. Kawah Masem maar was formed in the SW part of the caldera and contains a crater lake. No historical eruptions are known from Sempu. Sulfur has been extracted from fumarolic areas in the maar since 1938. | |||