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Your daily dose of natural disasters and amazing phenomena for April 28, 2021...
That is epic!
Out of this world… in Antarctica…
Flash floods around Mecca, Saudi Arabia. Flooding in Makkah.
Auroras are usually green, sometimes red. This one captured by Matti Helin over southern Finland is blue:
Blue auroras are caused by solar wind particles raining down on ionized nitrogen molecules (N2+) in the upper atmosphere. Usually the blue is faint, practically invisible. At this time of year, however, blue gets a boost from the Arctic summer sun.
Major fireball across southern France, Switzerland and northern Italy (AMS event 2408-2021):
Scientists detect mysterious melting of Earth’s crust from BC, Canada to Sonora, Mexico… Something related to Cascadia?
Learn more about the geology of the Pacific Northwest here… (affiliate)
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Thank you, Manuel