I'm a dedicated researcher, journalist, and editor at The Watchers. With over 20 years of experience in the media industry, I specialize in hard science news, focusing on extreme weather, seismic and volcanic activity, space weather, and astronomy, including near-Earth objects and planetary defense strategies. You can reach me at teo /at/ watchers.news.
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.
Air quality across New Delhi, India, deteriorated sharply between October 19 and 21, 2025, reaching “very poor” and “severe” levels at multiple monitoring stations. According to the Central Pollution Control Board (CPCB), the 24-hour average AQI rose from 296 on October 19 to 345–346 on October 20–21, prompting Stage II measures of the Graded Response Action Plan (GRAP) across the National Capital Region.
A deadly tornado struck the Val-d’Oise department, north-east of Paris, France, at around 17:45 LT (15:45 UTC) on October 20, 2025, killing one person and injuring nine, four critically. The violent, short-lived storm collapsed several construction cranes in Ermont, caused widespread roof damage, and uprooted trees across neighbouring municipalities.
A strong seismic swarm began beneath Iceland’s Mýrdalsjökull glacier, part of the Katla volcanic system, around 10:30 UTC on October 20, 2025. Several earthquakes above magnitude 3 were recorded, the largest reaching M4.5 at 10:51 UTC. The Icelandic Meteorological Office reports no felt activity and no changes in river levels, conductivity, or deformation, indicating no immediate signs of eruption at the Katla volcano or glacial flooding.
New Zealand is set for a week of active weather as multiple systems track across the country from October 20 to 23, 2025. MetService warns of strong northwesterlies and heavy rain early in the week, followed by another intense front on Thursday that may bring more severe impacts to already affected areas.
A quiet, trigger-less swelling at Taftan volcano in southeastern Iran has exposed hidden instability within one of the country’s most remote volcanic systems. Using Sentinel-1 satellite InSAR enhanced by a new common-mode filtering method, scientists detected a ten-month summit uplift of about 9 cm (3.5 inches) between July 2023 and May 2024, marking the first confirmed volcanic unrest in the Makran subduction arc, where even long-silent volcanoes can awaken without warning and reveal unmonitored hazards.
Strong winds and very low humidity prompted the National Weather Service to issue a Red Flag Warning across Colorado’s Front Range on October 20 2025, creating critical fire-weather conditions and an increased risk of power disruptions. Xcel Energy warned customers in the Denver metropolitan area of potential outages and activated Enhanced Powerline Safety Settings (EPSS), which increase system sensitivity to prevent wildfire ignition during extreme weather.
Several tornadoes were reported across Arkansas, Louisiana, and Mississippi on the evening of October 18, 2025, including a radar-confirmed tornadic debris signature 3 km (2 miles) southwest of Yazoo City, Mississippi, at 21:34 LT. Earlier, a tornado caused structural damage in Hot Spring County, Arkansas, near De Roche, while another debris signature was detected near Warsaw, Louisiana, as supercells moved east across the Lower Mississippi Valley.
Episode 35 of the ongoing Halemaʻumaʻu eruption at Kīlauea volcano began at 20:05 HST on October 17, 2025 (06:05 UTC on October 18), producing simultaneous fountains from the north and south vents that reached record heights of approximately 460 m (1 500 feet). The eruption cloud rose above 6 000 m (20 000 feet) while lava flows remained contained within the crater.
Heavy rainfall during Nigeria’s 2025 summer rainy season has affected 27 of the country’s 36 states, causing severe floods and river overflows that left at least 238 people dead and 826 injured. According to the National Emergency Management Agency (NEMA) and the European Commission’s Directorate-General for European Civil Protection and Humanitarian Aid Operations (DG ECHO), more than 135 000 people have been displaced and about 400 000 in total affected. The worst-hit states are Lagos, Adamawa, Akwa Ibom, Imo, Taraba and Rivers, where over 47 000 houses and 60 000 ha (148 000 acres) of farmland have been destroyed or damaged.
