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.

  • Solar Cycle 25 Prediction Panel forecast update

    Solar Cycle 25 Prediction Panel, co-chaired by NOAA/NASA, released its latest forecast for Solar Cycle 25 (SC25) on December 9, 2019. The forecast consensus: a peak in July 2025 (+/- 8 months), with a smoothed sunspot number (SSN) of 115. The panel agreed that SC25…

  • New explosive-effusive activity at Nishinoshima volcano, Japan

    A new explosive-effusive activity is taking place at the Japanese Nishinoshima volcano in the Izu-Bonin Volcanic Arch. Thermal anomalies were detected by satellites and confirmed by Japanese coastguard overflight on December 6. The explosions are currently located…

  • Intensification of Strombolian activity at Etna volcano, Italy

    Video surveillance cameras show a gradual intensification of Strombolian activity at the New Southeast Crater of Etna volcano, Italy, beginning at 18:00 UTC on December 6, 2019. The activity was already underway at about 16:00 UTC, producing small and discontinuous…

  • Eruption detected at Semisopochnoi volcano, Alaska

    An eruption signature was detected at Semisopochnoi as strong tremor on local seismic and in regional infrasound networks on Adak Island, Alaska Volcano Observatory reported at 10:25 UTC on December 7, 2019. The event started at 09:26 UTC (00:26 AKST) on December 7…

  • Shallow M6.0 earthquake hits Tonga region

    A shallow earthquake registered by the USGS as M6.0 hit Tonga region at 13:04 UTC on December 6, 2019. The agency is reporting a depth of 10 km (6.2 miles). EMSC is reporting the same magnitude and depth. The epicenter was located 164 km (101) WNW of Hihifo…