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Major Quake - M7.5 Now

  1. Mar 29, 2015 #1

    davenn

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    Last edited: Mar 29, 2015
  2. jcsd
  3. Mar 29, 2015 #2
    Last edited: Mar 29, 2015
  4. Mar 29, 2015 #3

    davenn

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    well in the case of subduction zone quakes, its the subducting crust/ lithosphere that provides melt material that will eventually come back up
    in eruptions. Quakes in today's quake region and a bit further west would be responsible for "feeding" the Rabaul volcanoes not far to the north/NW.

    Remember the subduction, melting and rising of the resulting magma is on very long time periods. So a big quake there today, doesn't infer an eruption in the near future. Any near future eruptions would be from already existing rising plumes. Its just a long ongoing process :smile:

    Dave
     
  5. Mar 30, 2015 #4

    davenn

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    One of the channel seismograms from this event ....

    150329.234553.sydln.gif
     
  6. Mar 30, 2015 #5

    davenn

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    I was lucky to get this quake yesterday. Some hours after it occurred and just after I saved the files
    the computer that runs the seismo recorder failed. Look like the mother board has fallen over :frown:

    Several weeks ago a friend gave me his old computer system and after spending some time cleaning out all his programs and other stuff
    I was able to install the logging software and get it up and running again. Just in time to record a M 5.5 from the central Indian Ocean
    and this morning a M 5.7 aftershock from the Tonga Samoa region quakes.
    I missed recording the Tonga Samoa region quakes last nite as the system was in the middle of multiple failures
    They were a M 6.4 and a M 6.5 around 30 minutes apart

    The joys of live science

    cheers
    Dave
     
    Last edited: Mar 30, 2015
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