About Rajabasa
Rajabasa is a stratovolcano rising to 1,282 meters (4,206 feet) in Indonesia's Sunda-Banda Volcanic Regions. No historical eruptions have been recorded, though the volcano is classified based on geological evidence of past activity.
Geography & Climate
Rajabasa is located in Indonesia, within the Sunda Volcanic Arc of the broader Sunda-Banda Volcanic Regions. Situated at 5.78° S, 105.63° E in the Southern Hemisphere, the volcano lies within a tropical climate zone. With a summit elevation of 1,282 meters above sea level, Rajabasa is a moderately sized peak that remains accessible to hikers and researchers for much of the year. The volcanic landform is characterized as a composite, which describes the physical shape and structure of the volcanic edifice as observed from the surface.
GVP Reference Summary
Rajabasa is a prominent isolated volcano along the Sunda Strait at the SE-most tip of Sumatra. The eroded edifice is ~7.5 km diameter overall, with the Balerang summit towards the SE and the slightly higher Rajabasa to the NW with a crater ~600 m in diameter. Fumarolic activity occurs on the foot and flanks of the edifice; increased activity was reported in April 1863 and May 1892. Bronto et al. (2012) described Quaternary lavas (andesite-basalt), breccias, and tuff. Hasibuan et al. (2020) reported that the youngest eruptive material, an andesite from the Rajabasa cone, was K-Ar dated at 0.120 +/- 0.04 Ma.
— Smithsonian Institution, Global Volcanism Program
0 Recorded Eruptions
No eruption records available for Rajabasa.
Real-Time Data
USGS Alert Level
Thermal Anomalies
Frequently Asked Questions About Rajabasa
Is Rajabasa an active volcano?+
Rajabasa is not currently classified as active. Its activity evidence is listed as "unknown." No recorded eruptions have been documented. However, no volcano is ever considered permanently extinct.
How high is Rajabasa?+
Rajabasa has a summit elevation of 1,282 meters (4,206 feet) above sea level. At 1,282 meters, it is a moderately sized volcanic peak, roughly comparable to Mount Vesuvius (1,281m).
What type of volcano is Rajabasa?+
Rajabasa is classified as a Stratovolcano. Stratovolcanoes (also called composite volcanoes) are steep, conical volcanoes built up by many layers of hardened lava, tephra, and volcanic ash. They are among the most common and dangerous types, known for explosive eruptions.
Where is Rajabasa located?+
Rajabasa is located in Indonesia, in the Sunda-Banda Volcanic Regions. More specifically, it lies within the Sunda Volcanic Arc. Its exact coordinates are -5.780° latitude, 105.631° longitude.
Is it safe to visit Rajabasa?+
Rajabasa can generally be visited, but as with any volcano, visitors should check local conditions and any advisory notices before traveling. Indonesia may have specific regulations for accessing volcanic areas. Guided tours are often the safest and most informative way to experience a volcano.
