JackDole wrote:The strongest solar storm of the last 11,000 years was possibly 774/775. https://en.wikipedia.org/wiki/774%E2%80 ... n-14_spike
That's the one I was thinking about! It makes Carrington look like a non-event. I'm not sure that can be compared to a supervolcano event either though as the last supervolcano eruption was 80,000 years ago. I think that was Toba?
https://www.space.com/18667-ancient-sol ... arbon.html
http://www.pbs.org/wgbh/nova/next/ancie ... -pinpoint/
So far, scientists have discovered in trees two solar storms that manifest as rings with dramatically increased levels of C-14, an isotope of carbon. The first, found in 2012, dates back to 775 AD—the second, to 994 AD.
https://www.theguardian.com/science/201 ... chronology
In 2012, the Japanese scientist Fusa Miyake identified a dramatically raised level of C-14 in one set of growth rings that is known to date from 775AD. Since then, what the Oxford team call a second Miyake event – a consequence of a catastrophic extraterrestrial discharge of energy – has been identified from the year 994AD.
Where checks have been made on tree rings, these have been on a decadal basis – which is why no-one noticed the rare single-year anomalies of the past. Such celestial violence may also have been witnessed: the Anglo-Saxon Chronicle records an eerie “red crucifix” in the sky in 774AD.
https://eos.org/articles/did-solar-flar ... e-on-earth
Mid- some parts of the US grid are antiquated- back in August 2003 we had a big blackout that lasted for almost 24 hrs and took out power to 55 million people (eastern Canada too), it was memorable to me because I was outside and I saw everything just stop trains, cars, traffic lights, phones stopped working, the water stopped running, etc. It happened on a Friday afternoon at 4:30 and it was like everything had been turned off- and it was, literally!