Open Earth

Buyan-Bratan

Buyan-Bratan is a caldera in Sunda-Banda Volcanic Regions, Indonesia, rising to 2,244 m.

About Buyan-Bratan

The most obvious feature of the Buyan-Bratan volcanic complex in north-central Bali is the 11 x 6 km wide Bratan caldera (also known as Catur or Tjatur caldera), which contains three caldera lakes. Several post-caldera stratovolcanoes straddle its southern rim; the largest post-caldera cone, Batukau (Batukaru), is 10 km SW. The cones are well-formed, but covered with thick soils and vegetation; they are thought to have been inactive for hundreds or thousands of years (Wheller, 1986). The Tapak and Lesong cones are not covered by deposits of the youngest dacitic pumice eruptions of nearby Batur volcano, and are thus thought to be less than 23,000 years old. The geothermal field within the caldera has been developed to produce electrical power, and hot springs are located in more than a dozen locations.

Eruption reports

Reports from GDACS and NASA EONET linked to this volcano.

No eruption reports in our records yet. New reports appear here automatically.

Earthquakes nearby, 30 days

Within about 50 km. Swarms of small quakes can sometimes accompany volcanic unrest.

No earthquakes recorded nearby in the last 30 days.