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01/06/2016 11:43

Information about hydrogen bomb test in North Korea derived from seismological observations

Dipl.Met. Franz Ossing Presse- und Öffentlichkeitsarbeit
Helmholtz-Zentrum Potsdam - Deutsches GeoForschungsZentrum GFZ

    GEOFON notification system at the GFZ
    German Research Centre for Geosciences has calculated and notified a few
    minutes after the origin time at 01:30:01 UTC time (10:00 Pyongyang time)
    a magnitude of M 5.3 for this event. The location of the event is almost
    the same as the previous known explosions in 2013 and 2009.

    Seismic signals from explosions are different from those observed in case
    of earthquakes showing particular features that allow seismologists to
    distinguish between the two.

    Information about probable hydrogen bomb test in North Korea derived from seismological observations

    06.01.2016: A very shallow seismic event was detected this morning in North Korea
    near Punggye-ri. The automatic GEOFON notification system at the GFZ
    German Research Centre for Geosciences has calculated and notified a few
    minutes after the origin time at 01:30:01 UTC time (10:00 Pyongyang time)
    a magnitude of M 5.3 for this event. The location of the event is almost
    the same as the previous known explosions in 2013 and 2009.

    Seismic signals from explosions are different from those observed in case
    of earthquakes showing particular features that allow seismologists to
    distinguish between the two. The similarity of the waveforms, the
    shallow depth and the almost identical location with respect to the
    previous events in 2013 and 2009 are indicating that also the source of
    this event is an explosion. A comparison with the measurements from 2009 und 2013 shows a larger magnitude of the 2016 test.
    The GEOFON station of GFZ at Flechtingen in Germany recorded the event eleven minutes after the origin time in a seismogramme:
    https://media.gfz-potsdam.de/gfz/wv/05_Medien_Kommunikation/Bildarchiv/Einzelbil...

    Station in China: https://media.gfz-potsdam.de/gfz/wv/05_Medien_Kommunikation/Bildarchiv/Einzelbil...


    The location is found here:
    http://geofon.gfz-potsdam.de/eqinfo/event.php?id=gfz2016ajgm

    The GEOFON-event parameters of the explosions from 2009, 2013 und 2016 may be found here:
    http://geofon.gfz-potsdam.de/eqinfo/list.php?latmin=41&latmax=42&lonmin=...


    Criteria of this press release:
    Journalists, Scientists and scholars
    Environment / ecology, Geosciences, Politics
    transregional, national
    Miscellaneous scientific news/publications, Research results
    English


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