Een video met uitleg en meer publicaties met nog een video over de onderwatervulkaan voor de kust van Oregon (staat Washington VS)
Onderzoek is uitgevoerd door medewerkers van NOAA (Earth-Ocean Interactions)
https://youtu.be/ohHiImaS0Ow
De onderzoekers hebben afgelopen week o.a. het volgende geconstateerd:
April 30, 2015 - It looks like an eruption
The temperature data from the bottom pressure/tilt instruments are showing increases that suggest that lava was erupted on the seafloor somewhere nearby.
Check out the latest data here. Below is the same long-term inflation/deflation plot as below, but now with the 2015 eruption added.
Note however, that I've just eyeballed it in a vertical sense (on the Y-axis).
Until we go out in August and repeat our ROV-based pressure measurements (the purple dots), we won't know exactly where it fits, nor the drift of the OOI pressure sensor.
But I don't think this is too far off. See the OSU Press Release here.
http://www.pmel.noaa.gov/eoi/rsn/24April2015/Axial_geodetic_time_series_2015-Apr-sm.png
Zie verder:
http://www.pmel.noaa.gov/eoi/axial_blog.html
Meer info:
Researchers think Axial Seamount off Northwest coast is erupting – right on schedule
http://oregonstate.edu/ua/ncs/archives/2015/apr/researchers-think-axial-seamount-northwest-coast-erupting-%E2%80%93-right-schedule
met (andere) video
There She Blows? Underwater Volcano May Be Erupting Off Oregon
http://www.nbcnews.com/science/science-news/there-she-blows-underwater-volcano-may-be-erupting-oregon-n352226
Publicatie in Natu
On the evening of 23 April, seismometers around Axial recorded a huge spike in seismic activity. Small earthquakes began rattling at a rate of almost 8,000 per day, a nearly tenfold increase from before. William Wilcock, an oceanographer at the University of Washington, spotted the spike and alerted a group of scientists who, a day earlier, had just finished a planning workshop about what to do when Axial erupted.
http://www.nature.com/news/massive-underwater-volcano-erupts-1.17463
NW underwater volcano erupting, researchers say
http://www.ktvz.com/news/nw-underwater-volcano-erupting-researchers-say/32661318
Seafloor sensors record possible eruption of underwater volcano
http://www.washington.edu/news/2015/04/30/seafloor-sensors-record-possible-eruption-of-underwater-volcano/
http://www.seattletimes.com/seattle-news/science/did-she-blow-nw-submarine-volcano-likely-just-erupted/