Starting at 20:35 UTC on April 23, 2014, seismic stations located on Pagan, Sarigan, Anatahan and Saipan (Commonwealth of the Northern Mariana Islands) began recording signals believed to be from an undersea volcanic source. Hydroacoustic sensors on Wake Island suggest that the source of this seismic activity is at or near Ahyi seamount. USGS cannot locate precisely the source of the activity and it is possible that the vent is one of the other volcanic seamounts in the area. According to latest notice from USGS issued at 18:41 UTC on April 26 the seismic activity is ongoing but satellite images show nothing out of the ordinary and they have received no reports of activity at the oceans surface. Aviation color code was set to yellow.
Posted on: Tue, 29 Apr 2014 16:58:23 +0000
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