Our live coverage has paused
Thank you for following this live blog.
Daniel Keane19 November 2025 14:46
Are you affected?
Did you see the volcano erupt? Contact james.reynolds@independent.co.uk
James Reynolds19 November 2025 13:25
Residents urged to stay far away as risk lingers
Residents have been urged to stay at least 2.5km (1.5 miles) away from the site of the eruption due to ongoing risks.
Indonesia’s volcanology agency issued the warning as it increased the alert level of Java Island’s tallest mountain to the highest.
The volcano spewed ash clouds as high as 2 km (1 mile) above the mountain’s peak, the agency said,
James Reynolds19 November 2025 13:20
Over 300 residents evacuated to government shelters
More than 300 residents in the three villages most at risk in the district of Lumajang had been evacuated to government shelters, National Disaster Mitigation Agency’s spokesperson Abdul Muhari said.
The eruption blanketed several villages with falling ash throughout the day, forcing authorities to raise the volcano’s alert level twice, from the third-highest level to the highest, the agency said. No casualties have been reported.
Maryam Zakir-Hussain19 November 2025 13:19
Pictured: Semeru erupts, spewing ash into populated areas


James Reynolds19 November 2025 13:06
What is a red aviation warning?
The Aviation Colour Codes provide the aviation community with information about volcanic activity and the potential presence of volcanic ash in the atmosphere, according to GeoNet.
A red code signifies that eruption is forecasted to be imminent with significant emission of ash into the atmosphere likely, or, eruption is underway with significant emission of ash into the atmosphere
Maryam Zakir-Hussain19 November 2025 13:00
Red aviation warning issued
The Australia Volcanic Ash Advisory has issued a red aviation warning with the public prohibited from engaging in activities within 500 meters of the riverbank along Besuk Kobokan.
Maryam Zakir-Hussain19 November 2025 12:51
Avalanches of hot lava and rock descends 7km down mountain
Mount Semeru in East Java province unleashed avalanches of searing clouds of hot ash and a mixture of rock, lava and gas that traveled up to 7 kilometers (4.3 miles) down its slopes several times since midday to dusk, while a column of hot clouds rose 2 kilometers (1.2 miles) into the air, Indonesia’s Geology Agency said in a statement.
Maryam Zakir-Hussain19 November 2025 12:31
Indonesia raises alert for Mount Semeru to highest level
Indonesia has raised the alert for Mount Semeru volcano to the highest level following the series of eruptions.
The country straddles the “Pacific Ring of Fire”, a highly seismically active zone, where different plates on the earth’s crust meet and create a large number of earthquakes and volcanoes.
Maryam Zakir-Hussain19 November 2025 12:29





