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.

  • Earthquake swarm near Nevado del Huila volcano, Colombia

    A shallow earthquake registered by the Geological Service of Colombia (SGC) as M5.4 hit 12 km (7.4 miles) NE of the Central Peak of the Nevado del Huila volcano at 12:32 UTC (07:32 local time) on January 26, 2019. The USGS is reporting it as M5.6 at a depth of 10 km…

  • Asteroid 2019 BV1 flew past Earth at 0.35 lunar distances

    A newly discovered asteroid designated 2019 BV1 flew past Earth at a distance of 0.35 LD / 0.00090 AU (134 638 km / 83 660 miles) on January 24, 2019. This is the 4th known asteroid to flyby Earth within 1 lunar distance since the start of the year. This near-Earth…