File this under “COOL!!!”
While orbiting the Earth on June 12th, astronauts aboard the international space station saw a very unique event. Looking down at the Kuril Island Chanin (Northeast of Japan), the astronauts observed a volcanic explosion. With calm lower and upper level winds, they enjoyed a once in a lifetime event as the plume of smoke and ash shot up towards them.
What is also awesome is that you can see the Pyroclastic flow as well as the shockwave emminating from the volcano. You can see the shockwave thanks to the low-level clouds being pushed out in a near perfect circle around the island, again, tanks to the light winds.
Take a moment to read the whole article: link.