Is Mt. Fuji at Risk?

“The 1707-1708 eruption is the one that has some people concerned about what Fuji might have in store. On October 26, 1707, Honshu was struck by a M8.4 earthquake and less than 2 months later, on December 16, 1707, Fuji began eruptin. The initial eruption was explosive ash and puma, but within hours of starting the eruption became basaltic fountaining from a flank vent. Over the next few weeks, Fuji erupted ~0.68 km3 of material before the eruption ended at the start of 1708. The magma erupted during this eruption was decidedly mixed – from basalt to dacite – suggesting that it was fed by multiple magma sources. Ash from this eruption reached as far as Tokyo. If you look at the eruptive history of Fuji and the record of major earthquakes in Japan, you can see there isn’t any real correlation between the two, so trying to connect the October 26, 1707 earthquake with the December 1707 eruption at Fuji is likely tenuous at best.”

a must read with many links, maps and photos:

http://bigthink.com/ideas/31631

a short video of the beautiful but dangerous mountain

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