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 strong earthquake registered by the USGS as M6.4 hit Atacama, Chile, at 17:15 UTC (13:15 local time) on June 6, 2025. The agency is reporting a depth of 76.6 km (48 miles). CSN Chile is reporting M6.4 at a depth of 65 km (40 miles).
A large asteroid designated 2008 DG5 will fly past Earth at a distance of 9.1 LD (0.023 AU; 3.4 million km / 2.1 million miles) at 23:57 UTC on June 5, 2025. This will be the closest approach of this asteroid between 1956 and 2125.
Footage captured on June 2, 2025, shows people fleeing as an eruption at Mount Etna’s Southeast Crater produces pyroclastic flow and an ash plume up to 6.5 km (21 325 feet).
A sharp increase in volcanic tremor preceded a new Strombolian eruption at Mount Etna, Italy, early on June 2, 2025, with ash and SO2 clouds drifting southwest. The Aviation Color Code was raised to Red at 03:32 UTC and downgraded to Orange at 06:39 UTC.
A strong and shallow earthquake registered by the JMA as M6.3 hit near the coast of Hokkaido, Japan, at 18:51 UTC on June 1, 2025 — 03:51 local time, June 2. USGS is reporting M6.0 at a depth of 31 km (19.2 miles).
A strong and shallow earthquake registered by the USGS as M6.2 hit the Kermadec Islands region at 22:26 UTC on May 31, 2025. The agency is reporting a depth of 10 km (6.2 miles). EMSC is reporting the same magnitude and depth. This is the third M6+ earthquake in the Kermadec Islands region in just 8 hours.
A shallow earthquake registered by the USGS as M6.0 hit the Kermadec Islands region at 21:21 UTC on May 31, 2025. The agency is reporting a depth of 10 km (6.2 miles). EMSC is reporting the same magnitude and depth.
An S1 – Minor solar radiation storm began at 17:00 UTC on May 31, 2025. The storm is linked to a long-duration M8.1 solar flare from Active Region 4100 at 00:05 UTC on May 31. Minor HF radio signal fades are being reported at high latitudes.
The U.S. Space Weather Prediction Center (SWPC) issued a G4 – Severe geomagnetic storm watch for June 2, 2025, following the eruption of a powerful, Earth-directed coronal mass ejection (CME) associated with a long-duration M8.1 solar flare from Active Region 4100. The CME is forecast to arrive at Earth late on June 1, with geomagnetic storm conditions expected to intensify through June 2.
A strong and shallow earthquake registered by the USGS as M6.1 hit Kermadec Islands region at 14:28 UTC on May 31, 2025. The agency is reporting a depth of 10 km (6.2 miles).
