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US - M 7.0 earthquake - 13km N of Anchorage, Alaska - Tsunami warning cancelled

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  • US - M 7.0 earthquake - 13km N of Anchorage, Alaska - Tsunami warning cancelled

    M 7.0 - 13km N of Anchorage, Alaska

    • 2018-11-30 17:29:28 (UTC)
    ...

    Tectonic Summary

    The November 30, 2018, Mw 7.0 earthquake near Anchorage, Alaska, occurred as the result of normal faulting at a depth of about 40 km. Focal mechanism solutions for the event indicate slip occurred on a moderately dipping fault striking north-south (dipping either to the east at about 30 degrees, or the west at about 60 degrees). At the location of this earthquake, the Pacific plate is moving towards the northwest with respect to the North America plate at about 57 mm/yr, subducting beneath Alaska at the Alaska-Aleutians Trench, approximately 150 km south-southeast of this event. The location and mechanism of this earthquake indicate rupture occurred on an intraslab fault within the subducting Pacific slab, rather than on the shallower thrust-faulting interface between these two plates.
    Earthquakes are common in this region. Over the past century, 14 other M 6+ earthquakes have occurred within 150 km of the November 30, 2018 event. Two of these – a M 6.6 earthquake in July 1983 and a M 6.4 event in September 1983 – were at a similarly shallow depth and caused damage in the region of Valdez. The M 9.2 great Alaska earthquake of March 1964, was an interface thrust faulting earthquake that ruptured over several hundred kilometers between Anchorage and the Alaska-Aleutians trench, and to the southwest.
    ...
    https://earthquake.usgs.gov/earthqua...9010/executive

    "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
    -Nelson Mandela

  • #2
    "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
    -Nelson Mandela

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    • #3
      Pinned Tweet
      Anchorage Police Department@APDInfo 29m29 minutes ago More



      APD is operational after massive earthquake; Call 911 for emergencies only; Many roads & bridges closed; Click link

      "May the long time sun
      Shine upon you,
      All love surround you,
      And the pure light within you
      Guide your way on."

      "Where your talents and the needs of the world cross, lies your calling."
      Aristotle

      “In a gentle way, you can shake the world.”
      Mohandas Gandhi

      Be the light that is within.

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      • #4
        NWS Tsunami AlertsVerified account @NWS_NTWC 15m15 minutes ago More



        CANCELLATION: M7.0 005mi N Anchorage, Alaska 0829AKST Nov 30: No tsunami observed

        "Safety and security don't just happen, they are the result of collective consensus and public investment. We owe our children, the most vulnerable citizens in our society, a life free of violence and fear."
        -Nelson Mandela

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