• Shishaldin volcano alert levels raised, Alaska

    Due to increased seismic and infrasound activity recorded over the past few weeks at Shishaldin volcano, the Alaska Volcano Observatory (AVO) raised the Aviation Color Code for the volcano to Yellow and the Alert Level to Advisory on Wednesday, December 6, 2017. The…

  • Shallow M4.2, M2.8 earthquakes hit northeast Oklahoma

    The U.S. Geological Survey registered two shallow earthquakes near Stillwater in northeast Oklahoma on December 5, 2017. The first, registered as M4.2 at 04:26 UTC (22:26 CST, December 4) hit at a depth of 3.3 km (2 miles) and the second, registered at 04:53 UTC as…

  • Strong and shallow M6.0 earthquake near the coast of Ecuador

    A strong and shallow earthquake registered by the IGEPN as M6.0 hit near the coast of Ecuador at 11:19 UTC on December 3, 2017. The agency is reporting a depth of 39.9 km (24.8 miles). USGS is reporting M6.0 at a depth of 24.7 km (15.3 miles). EMSC reports M6.2 at a…