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.

  • Eruption at Yasur volcano, Vanuatu

    A small eruption took place at Vanuatu’s Yasur volcano at 06:09 UTC on April 4, 2023. The Volcanic Alert Level remains at Level 2 since October 28, 2016.

  • Strong M6.4 earthquake hits Sumatra, Indonesia

    A strong earthquake registered by the BMKG as M6.4 hit Sumatra, Indonesia at 14:59 UTC on April 3, 2023. The agency is reporting a depth of 102 km (63.4 miles). USGS is reporting M6.1 at a depth of 84.5 km (52.5 miles). EMSC is reporting M6.1 at a depth of 95 km (59 miles).