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Published byEmerald Floyd Modified over 9 years ago
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TA station integration with AEC... Has it made a difference? Helena Buurman UAF/AEC TA team meeting, November 2015
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Seismicity in Alaska Sep 2014 - Sep 2015 51,972 earthquakes located Sep 2013 - Sep 2014 39,904 earthquakes located “Pre-TA” “Syn-TA”
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Earthquake rates in Alaska Rat Islands 7.9 Mysterious increase
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Seismometers in Alaska
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Have the TA stations made a difference?
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Picks made by AEC analysts
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TA stations used by AEC analysts
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10,614
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Pre-TA station distribution
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September 2015 station distribution
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New TA stations in Alaska
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How do the new stations impact what is located at AEC?
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How do the new stations impact what is located by AEC?
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Can we see a difference in the AEC earthquake catalogue? 2014 2015 # events Magnitude
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Can we see a difference in the AEC earthquake catalogue? 2014 2015 # events 8% 38% Magnitude
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Can we see a difference in the AEC earthquake catalogue? % events below mag. 1
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Are more earthquakes being located around new TA stations? H23K M26K M19K
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Are there changes around the existing AEC stations? GRIN TRF HOM
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Improved noise levels at AEC upgrade sites September 2015 September 2014
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September 2015September 2014
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6 upgrades in 2016
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TRF PIN KAI
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6 upgrades in 2016 TRF PIN KAI
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