• The Weekly Volcanic Activity Report: May 2 – 8, 2018

    New activity/unrest was reported for 6 volcanoes between May 2 and 8, 2018. During the same period, ongoing activity was reported for 11 volcanoes. New activity/unrest: Ibu, Halmahera (Indonesia) | Karymsky, Eastern Kamchatka (Russia) | Kilauea, Hawaiian Islands…

  • Volcanic hazard scenarios: Mount Taranaki, New Zealand

    Over the last 5 000 years, Mount Taranaki volcano in the westernmost part of New Zealand's North Island produced at least 16 Plinian-scale explosive eruptions. These eruptions had magnitudes of 4 to 5, eruptive styles, and contrasting basaltic to andesitic…

  • Explosion at Cleveland volcano, alert level raised to Orange

    A small explosion took place at 05:49 UTC at Cleveland volcano, Alaska on May 5, 2018. A small ash cloud was produced rising up to 6.7 km (22 000 feet) above sea level, drifting to the southeast. A few small earthquakes were also recorded at the volcano during the…

  • Very strong M6.9 earthquake strikes Hawaii, strongest since 1975

    A very strong and shallow earthquake registered by the USGS as M6.9 hit Hawaii at 22:32 UTC (12:32 local time) on May 4, 2018. The agency is reporting a depth of 5 km (3.1 miles). M5.4 earthquake occurred in the same region just a few hours before M6.9, as well as…