Mount Bromo Fire Burns 550 Hectares, Extinguished Monday but New Hotspots Emerge Near Caldera

A wildfire that tore through Indonesia's Mount Bromo National Park for over a week has been extinguished, according to Gatot Soebroto, head of the local disaster mitigation agency, who spoke to Reuters on Monday, August 10. The fire burned roughly 550 hectares, about 1,360 acres, before crews got it under control.

The relief didn't last long. Gatot said new fires have already broken out in areas around the volcano's caldera, covering an estimated 20 hectares. "The fire around the caldera is likely to spread further on Monday," he told Reuters, a warning echoed in reporting from Channel News Asia.

The blaze started at least eight days before Monday's update, according to Anadolu Agency, which reported the fire had burned 520 hectares as of Monday morning, citing Indonesia's Jakarta Globe. The discrepancy in acreage, 520 hectares versus 550, likely reflects the fire's continued spread between separate reporting windows rather than any dispute over the facts.

Anadolu identified the latest flare-up point as Puncak 30 in the Sumber district of Probolinggo regency, inside the Bromo Tengger Semeru National Park. Oemar Sjarief, head of the Probolinggo Disaster Mitigation Agency, said a previously small hotspot expanded significantly Monday morning, tearing through forest and surrounding vegetation. A second active fire location was reported at Dengklek in neighboring Pasuruan regency.

How they're fighting it

More than 120 personnel have been deployed alongside three water-bombing helicopters, drones, and fire trucks, according to both Reuters and Channel News Asia. Anadolu reported the helicopters are capable of up to 30 water drops a day when weather permits, citing Indonesia's Forestry Minister Raja Juli Antoni, who said the water-bombing campaign would continue until the fire is completely extinguished.

Ground crews are also using water tankers and water-spraying drones to reach terrain too rugged for trucks. Crews are monitoring smoldering areas to catch any reignition before it spreads, Anadolu reported.

What likely caused it

Investigators haven't finished their probe, but Gatot told Reuters authorities suspect carelessness, not arson or natural causes. "A person lit a fire, then put it out, but the fire was not fully extinguished," he said. That conclusion is based partly on where the first flame was spotted: along a trail regularly used by park visitors.

If confirmed, such a finding would mean a preventable human mistake shut down one of Indonesia's most-visited natural landmarks and burned through more than 500 hectares of protected forest. No named individual has been charged or identified, and Indonesian authorities have not announced any criminal investigation as of Monday's reporting.

The park remains closed

Mount Bromo is an active volcano famous for its "sand sea" caldera and draws tourists from around the world. The national park spans more than 50,000 hectares. Park chief Rudijanta Tjahja Nugraha told Reuters the facility has been closed since Saturday evening and will stay shut "until further notice."

No injuries or deaths have been reported in connection with the fire, according to Reuters and Channel News Asia.

Dry season fueling spread

Reuters' headline framing, republished by the South China Morning Post, specifically flagged that Indonesia is experiencing an "unusually dry season," a detail that helps explain why a single unextinguished campfire could spread across 550 hectares over more than a week. Anadolu's coverage, by contrast, focused more narrowly on the operational details of the firefighting response and didn't address the broader seasonal conditions driving the fire's spread.

Indonesia isn't alone in dealing with unusual wildfire activity this year. The Associated Press has reported on wildfires burning across the western United States and Canada as residents there face evacuations, part of what's shaping up as a rough global fire season.

What's next

The immediate question is whether the 20-hectare hotspot near the caldera can be contained before it grows into a repeat of the original fire. Gatot's own warning, that the fire is "likely to spread further on Monday," suggests officials aren't confident it's over. The investigation into the cause remains open, and there's no timeline yet for when the park might reopen to tourists.