Ahyi volcano (Mariana Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 14 May-20 May 2014 (New Activity / Unrest)

Wed, 14 May 2014, 06:00
06:00 AM | BY: VN
On 16 May the USGS reported that during the previous week seismic signals from the source at or near Ahyi seamount had greatly diminished, indicating that the eruption had possibly paused or ended. Scientists aboard the research ship Hi'ialakai conducted water column tests in the vicinity of Ahyi on 15 May and reported no sign of activity, suggesting that the eruption occurred from a nearby volcanic vent and not the summit. The Aviation Color Code remained at Yellow and the Volcano Alert Level remained at Advisory.

Source: Emergency Management Office of the Commonwealth of the Mariana Islands and United States Geological Survey Volcano Hazards Program
From: Global Volcanism Program, 2014. Report on Ahyi. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 14 May-20 May 2014. Smithsonian Institution and US Geological Survey.

Previous news

Wed, 7 May 2014, 06:00
A helicorder plot from a station on Pagan showed that seismic signals from a source at or near the Ahyi seamount stopped at 1610 on 8 May. An additional isolated event was reported at 1810. ... Read all
Wed, 30 Apr 2014, 06:00
Seismic stations on Pagan, Sarigan, Anatahan, and Saipan started recording signals on 24 April that continued at least through 2 May. The source had not been confirmed, but is thought to be at or near the Ahyi seamount. During 4-5 May a helicorder plot from a station on Pagan showed explosive signals at a rate of 20 per hour. ... Read all
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