• Deep M6.4 earthquake hits Tonga region

    A strong and deep earthquake registered by the USGS as M6.4 hit the Tonga region at 22:28 UTC on April 25, 2021. The agency is reporting a depth of 234 km (145 miles). EMSC is reporting as M6.5 at a depth of 242 km (150 miles). The epicenter was located 200 km (125…

  • Deep M6.4 earthquake hits Fiji region

    A deep earthquake registered by the USGS as M6.4 hit the Fiji region at 00:23 UTC on April 24, 2021. The agency is reporting a depth of 290 km (180 miles). EMSC is reporting M6.4 at a depth of 273 km (169 miles). The epicenter was located about 220 km (137 miles)…

  • Increase in eruptive activity at Semisopochnoi volcano, Alaska

    Eruptive activity at Semisopochnoi has gradually increased over the last 24 hours, the Alaska Volcano Observatory (AVO) reported at 21:48 UTC on April 22, 2021. Satellite views of the volcano show a continuous plume extending 80 km (50 miles) to the south at…

  • The Weekly Volcanic Activity Report: April 14 – 20, 2021

    New activity/unrest was reported for 5 volcanoes from April 14 to 20, 2021. During the same period, ongoing activity was reported for 18 volcanoes. New activity/unrest: Karymsky, Eastern Kamchatka (Russia) | Krysuvik-Trolladyngja, Iceland | Piton de la Fournaise,…