Volcanic ash emissions at Raung volcano reach 4.3 km (14 100 feet) a.s.l., Indonesia

An eruption occurred at Raung volcano, Indonesia, with volcanic ash emissions reported at 19:24 UTC on June 19, 2025. The volcanic ash cloud was observed to be moving towards the southwest as of 01:30 UTC on June 20, 2025, following ground and satellite reports.

The ash plume reached an altitude of 4.3 km (14 100 feet) above sea level, corresponding to a height of about 1 000 meters above the 3 260-meter (10 695-foot) summit. The volcanic ash cloud was not identifiable in satellite imagery due to meteorological cloud cover, but ongoing ash emissions were confirmed by ground observations. The current Aviation Color Code is Orange. Forecasts indicated continued ash movement to the southwest at 10 knots for at least the next 18 hours.

Raung volcano is not listed in the most recent Smithsonian / USGS Weekly Volcanic Activity Report for the current period. For updates and recent activity from the Global Volcanism Program, consult their official reports.

Raung is a large stratovolcano on the island of Java, Indonesia. It is known for frequent explosive eruptions that can produce ash plumes, lava flows, and pyroclastic material. The volcano’s wide summit caldera is a prominent geological feature. Hazards include ashfall affecting local communities and aviation, as well as the potential for lava flows and pyroclastic flows. Towns and villages in the surrounding region, such as Bondowoso and Banyuwangi, may be at risk depending on eruption size and wind direction.