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.

  • Coronal hole high speed stream sparks geomagnetic storm

    Earth is under the influence of a positive polarity coronal hole high speed stream (CH HSS) on October 7 and 8, 2018. G1 – Minor geomagnetic storm conditions were observed at 16:22 UTC and 20:42 UTC on October 7, 2018. A G2 warning has been issued and is valid until…

  • Asteroid 2018 TV to flyby Earth on October 7

    A newly discovered asteroid designated 2018 TV will flyby Earth at a distance of 0.75 LD / 0.00190 AU (284 235 km / 176 616 miles) at 20:05 UTC on October 7, 2018. It was first observed at Mt. Lemmon Survey on October 5, 2018. ​This object belongs to the Apollo…

  • Phreatic eruption at Mount Gamalama, Indonesia

    A new phreatic eruption took place at Mount Gamalama volcano, Halmahera, Indonesia at 02:52 UTC on October 4, 2018. The last eruption of this volcano took place in 2016. The eruption ejected volcanic ash up to 2.1 km (7 000 feet) above sea level. Ash column with…