The Semeru volcano, located in Indonesia's East Java province, has erupted five times within the last 24 hours, sending plumes of volcanic ash into the atmosphere.
Operative Information Center-OMM reports, citing the Antara news agency, that the volcanic ash reached heights of up to 1,000 meters above the summit, spreading primarily toward the northeast. Local monitoring stations recorded the series of eruptions as seismic activity remains elevated in the region.
Indonesian authorities have issued an urgent safety advisory, calling on residents and tourists to avoid all activities within a 500-meter radius of the Besuk Kobokan river. Officials warned of the high risk of pyroclastic flows—fast-moving clouds of hot gas and volcanic matter—as well as potential lava flows triggered by the recent activity.
Mount Semeru, the highest peak on Java island, is one of Indonesia's most active volcanoes. Located in the Bromo Tengger Semeru National Park, it sits on the "Pacific Ring of Fire," a zone of high seismic activity where tectonic plates meet. The volcano has a history of frequent eruptions, with significant events in recent years prompting large-scale evacuations and highlighting the ongoing geological volatility of the Indonesian archipelago.
