Canada has issued a new travel advisory for Indonesia following what officials describe as a “significant” volcanic eruption at Mount Semeru on Nov. 19, warning travellers that the situation remains unstable as seismic activity intensifies across the region.
Mount Semeru — the highest peak on the island of Java — erupted multiple times on Wednesday, sending lava flows and hot gas surging down its slopes, with reports indicating debris travelled as far as seven kilometres. Authorities in East Java’s Lumajang Regency evacuated several surrounding areas, including three villages most at risk. No fatalities have been reported.
In its updated advisory, the Government of Canada cautioned that a large ash cloud from the eruption could disrupt air traffic and potentially lead to delays or cancellations, including flights serving popular destinations such as Bali. The eruption comes amid heightened seismic activity, raising concerns about further eruptions or secondary hazards.
Indonesia, home to 129 active volcanoes, experiences periodic major eruptions that pose serious risks to residents and travellers alike. Volcanic ash can impair visibility, affect respiratory health and cause significant disruptions to aviation. Officials also warned of possible “lahar” — dangerous volcanic mudflows triggered by rain mixing with ash and debris.
The advisory notes that Mount Semeru is not the only concern. Other volcanoes showing worrying signs of activity include Mount Ibu in North Maluku, Mount Lewotobi Laki-Laki on Flores Island, and Mount Merapi on the border between Central Java and Yogyakarta.
Canadian officials urged travellers in affected areas to take all warnings seriously, respect exclusion zones, monitor local news, follow evacuation orders from authorities and be ready to adjust travel plans or leave the area on short notice.
The full advisory is available on the Government of Canada’s Travel website.