Possible eruption of underwater volcano Ahyi, Mariana Islands archipelago

Possible eruption of underwater volcano Ahyi, Mariana Islands archipelago

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