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 strong solar flare measuring M8.1 erupted from Active Region 4299 at 20:39 UTC on December 6, 2025. The event started at 20:29 and ended at 20:49 UTC. A full-halo coronal mass ejection was produced, with impact expected early to midday on December 9, potentially causing periods of G3 – Strong geomagnetic storming.
Low-level eruptive activity resumed at Ambae volcano (Manaro Voui) in Vanuatu, with intermittent ash emissions observed since December 1, 2025. Satellite imagery from Himawari-9 confirmed continuous low-level ash and gas plumes reaching up to 1.8 km (6 000 feet) above sea level, drifting northwest. The Wellington Volcanic Ash Advisory Centre (VAAC) issued its latest advisory on December 4, describing the eruption as continuous but confined within the volcano’s summit area.
The USGS has withdrawn a false alert for a magnitude 5.9 earthquake near Dayton, Nevada, issued at 16:06 UTC on December 4, 2025. The automated ShakeAlert early warning system triggered a false detection, prompting an investigation into its cause. No ground shaking or seismic activity consistent with the alert was recorded, and the event has been deleted from official feeds.
A strong M6.0 solar flare erupted from Region 4300 at 02:50 UTC on December 4, 2025, producing a non-Earth-directed CME. The flare occurred as Earth’s geomagnetic field remained in storm conditions, including a G3 – Strong interval driven by the arrival of a negative CH HSS and the flank of the CME launched on December 1. Solar wind parameters showed elevated density, strong IMF values, and Bz reaching −15 nT before transitioning to high-speed stream conditions.
A shallow earthquake registered by the USGS as M5.8 struck southern Xinjiang, China at 07:44 UTC (13:44 local time) on December 4, 2025. The agency is reporting a depth of 10 km (6.2 miles). The USGS issued a Green alert for shaking-related fatalities and a Yellow alert for economic losses.
New activity/unrest was reported for 9 volcanoes from November 26 to December 2, 2025. During the same period, ongoing activity was reported for 20 volcanoes.
Volcanic activity at Puracé, Colombia, intensified on November 30, 2025, prompting authorities to raise the alert level to Orange for the Los Coconucos volcanic chain in Cauca Department on December 1. Since then, continuous tremor, long-period seismicity, and sustained gas-and-ash emissions have been recorded, with columns exceeding 700 m (2 300 feet) above the summit (4 650 m / 15 260 a.s.l.) and occasional ashfall reported in nearby communities.
A newly discovered asteroid designated 2025 WE14 flew past Earth at a distance of 0.073 lunar distances at 18:44 UTC on November 29, 2025. The object was first detected by the Mt. Lemmon Survey on November 30 during a very short one-day observation arc.
A landslide struck the river port of Iparia on the Ucayali River in central Peru’s Amazon region at dawn on December 1, 2025, submerging two passenger boats and killing at least 12 people, including three children. Dozens remain missing, while rescue efforts by local police and navy units continue under difficult river conditions.
NOAA’s Space Weather Prediction Center (SWPC) issued a G2 – Moderate geomagnetic storm watch for December 3 and 4, 2025, following a coronal mass ejection (CME) associated with the X1.9 solar flare from Active Region 4299 on December 1. The CME is expected to deliver a glancing blow to Earth’s magnetic field, coinciding with a co-rotating interaction region (CIR) and a sector boundary crossing, increasing the potential for moderate geomagnetic storming and visible auroras at mid-latitudes.
