Heavy rainfall on March 3, 2026, triggered a destructive volcanic mudflow on Mount Merapi’s Kali Senowo channel in Magelang Regency, Central Java, Indonesia, sweeping away at least three trucks and one car.
A large lahar triggered by heavy rains on Mount Semeru trapped a man in the Regoyo River in East Java, on Sunday, December 21, 2025.
The Philippine Institute of Volcanology and Seismology (PHIVOLCS) has issued a lahar advisory for Kanlaon Volcano on Negros Island, warning that heavy to intense rainfall from Severe Tropical Storm Tino (#TinoPH) may generate volcanic sediment flows on the volcano’s southern and western slopes while Alert Level 2 remains in effect.
A secondary lahar flow originating from remobilized pyroclastic and tephra deposits on the southern flank of Mount Semeru, Indonesia, occurred on October 21, 2025, trapping a truck near Gladak Perak Bridge in Lumajang Regency, East Java. The rain-induced lahar, classified as a cold, non-eruptive sediment-water flow, moved through the Besuk Kobokan drainage, carrying a dense slurry of volcanic debris and runoff.
Weak to moderate lahars descended from Fuego volcano, Guatemala, at 19:17 LT on September 10, 2025, moving through Barranca Ceniza and into the Zarco and Mazate rivers, tributaries of the Achíguate River. The National Institute of Seismology, Volcanology, Meteorology and Hydrology (INSIVUMEH) reported that conditions remain favorable for additional lahars on the southwestern flanks.
Increased volcanic activity at Fuego in Guatemala forced the evacuation of an estimated 700 people from several villages in Chimaltenango on June 5, 2025. Heavy rains worsened conditions by triggering lahars that blocked roads and hampered emergency efforts. Authorities have closed schools, shut down roads, and issued an orange alert.
The eruption at Kanlaon volcano on Thursday, February 6, 2025, occurred amid heavy rainfall, triggering lahars that swept through river channels in Negros Occidental. The event prompted authorities to enforce evacuations within a 6 km (3.7 miles) radius.
Heavy rains triggered a significant lahar flow in Biak-na-bato village, Negros Occidental province, Philippines, on June 5, 2024, just two days after a strong eruption at Kanlaon volcano forced hundreds of people to evacuate.
Heavy monsoon rains falling over Indonesia’s Sumatra island on Saturday, May 11, 2024, caused a destructive lahar to descend the slopes of Marapi volcano, killing 37 people and leaving at least 17 others missing.
Two people have died in West Sumatra, Indonesia, due to a landslide in Agam regency, with floods and landslides affecting other areas, including Lima Puluh Kota.
