Teo Blašković founded The Watchers in 2011 and edited it until 2026, covering seismic and volcanic activity, extreme weather, space weather and near-Earth objects. Articles on this page are his archive.
A coronal mass ejection produced by a filament eruption on April 13 impacted Earth’s magnetic field at 16:37 UTC on April 15, sparking a G2 – Moderate geomagnetic storm. A G3 – Strong geomagnetic storm watch is in effect for April 16 due to the anticipated arrival of additional CMEs.
A shallow earthquake registered by the USGS as M6.6 hit the southeast Indian Ridge at 01:42 UTC on April 16, 2025. The agency is reporting a depth of 10 km (6.2 miles).
A shallow earthquake registered by the USGS as M5.2 struck near Julian, San Diego County, at 17:08 UTC (10:08 local time) on April 14, 2025, shaking large areas of Southern California. The agency reports a depth of 14.3 km (9 miles).
A large plume of Saharan dust is moving across the Mediterranean Sea into southern and central Europe, with peak concentrations expected on April 16. The event is likely to reduce air quality and may cause “blood rain” in areas affected by rainfall.
A G2 – Moderate geomagnetic storm watch is in effect for April 16, 2025, due to an Earth-directed coronal mass ejection from an April 13 filament eruption. Solar activity is forecast to remain moderate through April 15, with potential X-class flares from Region 4055, before decreasing to low levels on April 16.
A deep earthquake registered by the USGS as M6.5 hit south of Fiji Islands at 20:03 UTC on April 13, 2025. The agency is reporting a depth of 270 km (168 miles). EMSC is reporting M6.5 at a depth of 262 km (163 miles).
New activity/unrest was reported for 4 volcanoes from April 2 to 8, 2025. During the same period, ongoing activity was reported for 23 volcanoes.
A very bright fireball lasting 8 seconds crossed the sky over New Zealand’s central North Island on April 10, 2025.
An EF-1 tornado struck Princeton, Indiana, on April 10, 2025, causing widespread damage and leaving over 500 customers without power.
A developing storm system over the Eastern United States is expected to bring severe weather, including thunderstorms, heavy rain, and snow, from Thursday, April 10, 2025, through the weekend. This system is anticipated to produce strong to severe thunderstorms in these regions late Thursday into early Friday, with damaging winds and large hail as the main hazards. The Storm Prediction Center has issued a Slight Risk (level 2 out of 5) for severe thunderstorms in the affected areas.
