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Ahyi volcano (Mariana Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 7 May-13 May 2014 (New Activity / Unrest)

Wed, 7 May 2014, 06:00
06:00 AM | BY: VN
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.

Source: Matthew Haney, Alaska Volcano Observatory via Bill Chadwick, Oregon State University's Marine Science Center and NOAA/PMEL EOI Program, personal communication
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From: Global Volcanism Program, 2014. Report on Ahyi. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 7 May-13 May 2014. Smithsonian Institution and US Geological Survey.

Previous news

Wed, 30 Apr 2014, 06:00

Ahyi volcano (Mariana Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 30 April-6 May 2014 (New Activity / Unrest)

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
Mon, 28 Apr 2014, 10:35

Ahyi submarine volcano (Marianas): possible new volcanic activity

USGS raised the alert level for the submarine volcano due to abnormal seismicity detected in the area by hydroacoustic devices and land-based network devices on neighboring islands. ... Read all
Wed, 23 Apr 2014, 06:00

Ahyi volcano (Mariana Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 23 April-29 April 2014 (New Activity / Unrest)

Seismic stations on Pagan, Sarigan, Anatahan, and Saipan began recording signals starting at 0635 on 24 April believed to be from an undersea volcanic source. Hydroacoustic sensors on Wake Island suggested that the source is at or near Ahyi seamount, although it was possible that the vent is located at one of the other volcanic seamounts in the area. While conducting coral reef research at Farallon de Pajaros, NOAA divers reported hearing loud explosions and feeling the shock waves. ... Read all
Ahyi volcano
Submarine volcano -137 m / - 449 ft
United States, Mariana Islands, 20.42°N / 145.03°E
Current status: minor activity or eruption warning (3 out of 5) Ahyi volcano eruptions:
1979?, 2001, 2014, 2022 (mid Oct - ongoing, to be confirmed)
Typical eruption style
unspecified
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