.This eruption is a bit different than previous ones. Interaction with groundwater is causing more explosive eruptions at a couple of locations with large brown plumes emanating. Not sure why they are brown, but that's what the Icelandic geos are saying.
I'm checking the web cams every time I wake up in the night
was also confused by the brown ash.. never seen such dirty ash before. looked like an old coal-fired power plant.
.. actually come to think of it, Eyafjallajokull and Etna were frequently pretty grubby. I guess the brown is pulverised country rock/dirt. black juvenile magma and white steam.
But for a while there it really looked like it was burning through an old car tire pit.
another eruption in the series has started .. quite picturesque if anyone is interested.
ps to work out how high those lava fountains are you can guesstimate by timing how long the highest lava bombs need to fall back to earth.. at the moment it is about 5s which would put them at about 120m / 400 feet tall.
.This eruption is a bit different than previous ones. Interaction with groundwater is causing more explosive eruptions at a couple of locations with large brown plumes emanating. Not sure why they are brown, but that's what the Icelandic geos are saying.
I'm checking the web cams every time I wake up in the night
another eruption in the series has started .. quite picturesque if anyone is interested.
ps to work out how high those lava fountains are you can guesstimate by timing how long the highest lava bombs need to fall back to earth.. at the moment it is about 5s which would put them at about 120m / 400 feet tall.
Pretty spectacular eruptions. I think the thing that gets lost in this is that Iceland sits astride the Mid-Atlantic Rift. This is new crust being formed before our eyes! Before GPS we could sort of sum up the amount of lava being erupted and estimate how far the two sides of the rift must move apart to account for this. Now, with GPS, we know precisely how much the two plates, North America and Eurasia are moving from one another. Now think about that motion over thousands or millions of years and you can see how much larger the Atlantic will be (after weâre gone).
Headline's a bit dramatic but now I need to go look.
Since it is a National Park they need to put it all back. A little glue ought to fix things up. In all seriousness though, those are some extremely oversteepened slopes. Sounds like the rockfalls are pretty plentiful there. A M7 on the Teton fault would make for some major adjustments. Hope you take pictures.
You see...You retire and shit starts breaking...Thanks a lot!
Headline's a bit dramatic but now I need to go look.
Since it is a National Park they need to put it all back. A little glue ought to fix things up. In all seriousness though, those are some extremely oversteepened slopes. Sounds like the rockfalls are pretty plentiful there. A M7 on the Teton fault would make for some major adjustments. Hope you take pictures.
"if you like rattlesnakes and pancakes, this is for you!"
-guess who
At first I was thinking this was a bunch of hype since he was making a big deal about the bathymetry of the Gulf of Mexico. Then, I really liked the way he used analogies to describe the âreasonâ for the geomorphology of the slope (I wonât give up the secret). Well done. Thanks for sharing!
M. I have another question... this oblique extension regime in Reykjanes.. made up of bookshelf-type blocks accommodating both the slip and the extension motions.. Assuming there is a dyke forming at the moment, wouldn't this reduce the stress on adjacent sections of the main interplate interface (because magma has filled the gap)...i.e. the tectonic movements don't shunt stress down the line, but actually relieve it because ultimately it is extensional rather than compressional ... (does this make sense?)
CARITA BEACH, Indonesia (AP) — An eruption of one of the world’s most infamous volcanic islands is believed to have triggered a tsunami that killed at least 222 people in Indonesia during a busy holiday weekend. The waves smashed onto beaches at night without warning, ripping houses and hotels from their foundations in seconds and sweeping terrified concertgoers into the sea.
More than 800 people were injured and dozens more missing after the tsunami hit around the Sunda Strait at 9:27 p.m. Saturday, the Disaster Management Agency said. The toll could continue to rise because some areas had not yet been reached.
Scientists, including those from Indonesia’s Meteorology and Geophysics agency, said Sunday that the tsunami could have been caused by underwater landslides or those occurring above ground on Anak Krakatau’s steep slope following its eruption.
The volcano’s name translates to “Child of Krakatoa,” a volcanic island formed over years after one of the largest, most devastating eruptions in recorded history occurred at the Krakatoa volcano more than a century ago. The scientists also cited tidal waves caused by the full moon.
Dramatic video posted on social media showed the Indonesian pop band “Seventeen” performing under a tent on a popular beach at a concert for employees of a state-owned electricity company. Dozens of people sat listening at tables covered in white cloths while others bobbed to the music near the stage as bright strobe lights flashed and theatrical smoke was released.
A child could also be seen wandering through the crowd. Seconds later, with the drummer pounding just as the next song was about to begin, the stage suddenly heaved forward and buckled under the force of the water, tossing the band and its equipment into the audience.
