Geologic Background:
Historic Activity:
Recent Activity:
- An earthquake swarm began on May 21, 1989 with peak
activity on May 22. Low-level seismicity continued till
June 11 when a second swarm occurred. Character of
seismicity suggested that it was related to magma
movement associated with an intrusive episode or an
eruption onto the sea floor.
- Additional earthquake swarm on Sept. 9, 1990 and
another swarm in late Oct. and early Nov. 1990. Location
of 59.78°N 29.72°W based on sonobuoy
survey.
- A Russian Mir deep-diving submersible discovered a
young lava flow at 59.87°N 29.65°W. Complete
lack of sediment cover or biological colonization,
minimal alteration, and a distinct boundary between this
flow and underlying sediments suggest that this flow is
less than 10-20 years old.
Data Sources:
- Smithsonian's SEAN Bulletin (V. 14, No. 5)
- Global Volcanism Network (V. 15, No. 8 to V. 17, No.
8).
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