Ash plume from Raung volcano rises to 5.1 km (16 700 feet) a.s.l., Indonesia

An ash eruption was reported at Raung volcano, Indonesia, with volcanic ash reaching up to 5.1 km (16 700 feet) above sea level on June 20, 2025. The event was observed following a report at 11:11 UTC and confirmed in a subsequent advisory at 12:00 UTC. The ash cloud was moving toward the southwest.

The current Aviation Color Code is Orange. The volcanic ash cloud was not identifiable on satellite imagery at the time of the advisory due to meteorological cloud cover. Reports from the Indonesian Center for Volcanology and Geological Hazard Mitigation (CVGHM) indicated that the ash column rose approximately 2 000 m above the 3 260 m (10 695 feet) summit, reaching an altitude of about 5 100 m (16 700 feet) above sea level. Ash movement, height, and location were estimated using satellite, ground reports, and model data. Forecasts showed the ash cloud remaining at similar altitudes and affecting areas southwest of the volcano in the following hours.

The Raung volcano is not included in the most recent Smithsonian / USGS Weekly Volcanic Activity Report for late May 2025. For the latest activity updates, consult the Global Volcanism Program’s dedicated page on Raung.

Raung is a large stratovolcano located in East Java, Indonesia. It features a broad summit caldera and has a history of explosive eruptions with hazardous ashfall and occasional lava flows. The main hazards include ashfall that can affect local agriculture and communities and potential impacts to aviation. The nearest sizable population centers at risk include the cities of Banyuwangi and Jember, as well as smaller villages on the volcano’s flanks.