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incredible view of the eruption column from space showing gravitational waves / VolcanoDiscovery



Raikoke volcano news and activity updates:

Raikoke volcano (Kurile Islands): incredible view of the eruption column from space showing gravitational waves

Tuesday, June 25, 2019 15:03 | BY: T

  View of the vertically rising and expanding plume head during the peak phase of the outbreak of the Raikoke volcano on June 21-22, the 5th or 6th explosive phase (image: NASA Earth))

View of vertically rising and growing plume head during the peak phase of the outbreak of the Raikoke volcano on June 21

-22, the 5th or 6th explosive phase (image: NASA Earth))

NASA published a fantastic photograph of the 43,000 ft circular eruption column (13 km ) height, during the peak phase of activity around 22 June (local time).

It displays beautifully circular gravitational waves in the plume head created by exceeding and falling behind the ash gas mixture of the plume at maximum height, where the buoyancy of the plum has dropped to zero in the thinner atmosphere at the height.

These waves resemble the circular waves created on the water surface when a small object, e.g. a stone falls into it and causes a local displacement of the water which then spreads into growing circles.


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