La Palma is rumbling - What are the implications of a 40 foot Tsunami along the east coast?

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Lord of the Large Pants said:
Bushcraft Bear isn't looking so good. Maybe we need to drop somebody off at the island to sub in for a while.

I nominate Frankie MacDonald.

https://youtube.com/watch?v=BMautDEKvao
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Henry V said:
Was it expected that the sites of the earthquakes are for the most part moving down south of the central volcano itself?
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The vents will follow the earthquakes. There will be more vents to the south.
Michael Janke said:
so can we say with certainty that no mega tsunamis are happening?
when will it get to the point that this thread doesnt need to exist?
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No

The more vents we see on that ridgeline the greater the chance
 
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Michael Janke said:
so can we say with certainty that no mega tsunamis are happening?
when will it get to the point that this thread doesnt need to exist?
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The thing you gotta understand (no offense intended) is the volcano's cone is a drop in the pond of the whole picture, so to speak. In the '49 eruption that caused the original crack, it wasn't near the cone that the crack started.

The whole island is a volcano, and the crack already exists. All it takes is enough pressure and shifting, and a good 20^2 square miles of the island that's unsupported by anything other than a nearly sheer column falls. Having earthquakes 36mi deep means we're dealing with a deep pocket of magma pushing against large portions of land that haven't been properly assessed. The closer to the surface the quakes come, same with the magma. One follows the other. Clusters near the crack but deep are good in regards to not splitting the fucker. Opening of new vents however, means the pressure is not being alleviated by the cone. Enough vents open along said crack with a few good shakes and it sinks. Still highly unlikely, but the risk itself isn't gone until vents stop opening and the island stops shaking.
 
Henry V said:
Was it expected that the sites of the earthquakes are for the most part moving down south of the central volcano itself?
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The seismic swarm started in that area to the south before finding a tunnel to the northwest where the eruption happened. The current swarm indicates there is a lot more magma, and the question at hand is if the vent will be able to handle it. I’m betting no, particularly since the movement is trending northeast. I wouldn’t doubt that we get dueling vents on both sides of the ridge.

95 earthquakes in the last 24 hours (yellow line = current eruption site and lava flow):
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Michael Janke said:
so can we say with certainty that no mega tsunamis are happening?
when will it get to the point that this thread doesnt need to exist?
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Why would you want this awesome thread to end when you can be autistic as hell about volcanos?
 
The golden neckbeard said:
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The figures are sold out and now my heart is broken.


More than 40 earthquakes last night in La Palma, the highest quake has been another 4.6 at 23:57h (local time) with epicenter in the town of Mazo. (Source)

The lava pouring located in the southwest of La Laguna is now at 200 meters from the coast. If it reaches the sea, new protection measures would be adopted for the local residents of Tazacorte, due to possible explosions and harmful gases.

This video from last Saturday shows an ash cloud created by the new eruptive mouth. (Source)

 
Drone footage of all the vents going today
Drone footage of the current lava flow with IR included
 
Huh, having now seem the footage where the new vent doesnt seem to be doing much more than smoking, does it seem odd to anyone else that the main vents are still going as vigorously as they are? I thought for sure the once the lava had ruptured closer to the direct source the older vents would die off (and for like one night they did seem pretty subdued) but they seem to have picked right back up and the new one hasn't done a whole lot.

I wonder what's going on down there where a direct vent right over the upwelling requires more effort than the one that causes the lava to travel sideways an extra mile.
 
BoobWhiskers said:
I wonder what's going on down there where a direct vent right over the upwelling requires more effort than the one that causes the lava to travel sideways an extra mile.
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The main lava producing vent is at a much lower elevation than any of the other 3. I would assume that has at least some impact on where it comes out.
 
Bushcraft Bears evening report. The air quality looks horrible.
I saw some reports in Spanish earlier that I think indicated they were increasing the area of evacuation due to noxious gasses. Probably down by where the second lava flow is nearing the sea.
 
Pretty dumb question but when the lava hits the ocean, Do the new rocks just kinda "float" above the water? Like a 5 foot layer of new lava rocks with water below. Or does the lava fall down and completely fill the area.
 
Jimbobaggins said:
Pretty dumb question but when the lava hits the ocean, Do the new rocks just kinda "float" above the water? Like a 5 foot layer of new lava rocks with water below. Or does the lava fall down and completely fill the area.
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Not a dumb question at all. Some of it forms pumice stones that float, but most of it is so hot a pocket of superheated steam forms a cushion between the lava and the ocean itself so it crawls along the ground until it sets.
 
Jimbobaggins said:
Pretty dumb question but when the lava hits the ocean, Do the new rocks just kinda "float" above the water? Like a 5 foot layer of new lava rocks with water below. Or does the lava fall down and completely fill the area.
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Drone shots show the solid shell cracking as it cools and red-hot stuff still oozing out of the fissures days after it hit the sea, surprising how much energy is still there.
 
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