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Volcano earthquake report for Wednesday, 9 September 2026
• World Earthquake Report for Wednesday, 9 September 2026
• Strong mag. 5.0 earthquake - Celebes Sea, 49 km north of Tahuna, Indonesia,...
• Moderate mag. 4.7 earthquake - Philippine Sea, 135 km southeast of Shima, M...
• The 10 most powerful earthquakes in the world since 1900
• Moderate mag. 4.0 earthquake - Indian Ocean, 80 km southwest of Labuan, Kab...
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#474987
Sun 23 Sep 2018 09:02:PM
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Joined: Feb 2001
Posts: 678,977
Launch Director
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Launch Director
Joined: Feb 2001
Posts: 678,977 |
Abstract: A glowing ribbon of purple light running east-west in the night sky has recently been observed by citizen scientists. This narrow, subauroral, visible structure, distinct from the traditional auroral oval, was largely undocumented in the scientific literature and little was known about its formation. Amateur photo sequences showed colors distinctly different from common types of aurora and occasionally indicated magnetic field aligned substructures. Observations from the Swarm satellite as it... Source: New Science in Plain Sight: Citizen...Structure in the Upper Atmosphere [STUB]
David Cottle
UBB Owner & Administrator
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