[HN Gopher] Turkey earthquake opened 190-mile-long fissure
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Turkey earthquake opened 190-mile-long fissure
Author : Brajeshwar
Score : 119 points
Date : 2023-02-11 17:03 UTC (5 hours ago)
(HTM) web link (www.space.com)
(TXT) w3m dump (www.space.com)
| Maursault wrote:
| Images here [1] and a before and after gif someone uploaded
| here[2] give a better a better idea than the article's included
| image of what it looks like. Also, there is a video of the
| earthquake here[3] that is positively terrifying.
|
| [1] https://www.reuters.com/world/middle-east/turkey-
| earthquake-...
|
| [2] https://gfycat.com/mellowblindflickertailsquirrel
|
| [3]
| https://www.twitter.com/pusholder/status/1623815189257719810...
| megous wrote:
| The video is probably counfounded by camera itself vibrating.
| You'd have to have camera suspended in the air (say a drone) to
| have realistic idea of the movement.
| BurningFrog wrote:
| Link [3] doesn't work.
| ultrarunner wrote:
| https://twitter.com/pusholder/status/1623815189257719810/
| will get you there
| MichaelZuo wrote:
| There is also a tunnel in Japan that was built through an
| undiscovered mud volcano.
| mrmckizzle wrote:
| 20,000 people killed. That's a mind blowing number. Didn't
| realize it was that high.
| MengerSponge wrote:
| 20,000 reported dead so far. That's far from a complete tally,
| sadly.
|
| People were asleep in their homes when the first one hit. Many
| apartment buildings were not built to Turkey's post-1999
| earthquake construction standards, so they collapsed. Many of
| those were built after 1999, but the government let developers
| cut corners and pay a fee for amnesty.
|
| Like COVID in the US and China, there are a lot of political
| pressures that will encourage an undercount.
| layer8 wrote:
| The 1999 Izmit earthquake had 17000 casualties, roughly the
| same order of magnitude, though not quite as high.
| toss1 wrote:
| Indeed! I fear that it will end up an order of magnitude
| higher. Just looking at the types of buildings collapsed,
| hearing the next day that they'd already counted 7,000
| collapsed buildings, and then "tens of thousands" of collapsed
| buildings a day later; IDK the current count. Even if we
| estimate an average of only 10 people per building, which seems
| low for multistory apartment buildings at a time when almost
| everyone is home sleeping, the coming numbers are likely to be
| horrific. Hard to even think about.
| codingclaws wrote:
| Fossils galore?
| space_fountain wrote:
| Every time I see something like this I'm shocked that we can
| build infrastructure in fault zones at all. What happens if a
| tunnel passes the a a fault line and an earthquake happens. Some
| googling suggests they wouldn't build a tunnel through this large
| of a fault and for smaller faults the tunnel is designed to
| safely deform with the ground in an earthquake
| graphe wrote:
| You want them to empty San Francisco? In Chicago they tunneled
| into the lake and flooded it, but you wouldn't say we shouldn't
| build next to water would you?
| space_fountain wrote:
| Sorry if I gave that impression. I love sf and I currently
| live there. I just thought it was interesting how
| infrastructure must be built to handle this. As an aside I
| believe sf is not built directly on top of a fault line
| that's quite this active. There's are major faults near by so
| in a major earthquake I think there might be some sheer on
| tunnels, but nothing like this
| graphe wrote:
| It's ok! The bronze age collapse was brought on partially
| by earthquakes too. Fault lines and waterways are very
| useful but can be dangerous. I know Japan has lots of
| earthquakes but they're better prepared. I heard they never
| sell buildings, only land and if it has a building on it
| they often demo it to make it safer.
| euroderf wrote:
| Come to think of it, there must be an instance of a tunnel
| _somewhere_ that had a crosswise shear of a few cm.
| kbutler wrote:
| Yes. https://www.researchgate.net/figure/Shear-tension-ring-
| fract... and others.
| boredpudding wrote:
| With such a long fissure, there's gotta be a security camera that
| recorded this happening somewhere.
| ycombinete wrote:
| See Maursault's comment in this same thread.
| m00dy wrote:
| you can still donate https://ahbap.org/disasters-turkey
| qup wrote:
| > Two cracks in the Earth's crust opened in the devastating
| earthquake that struck Turkey on Monday, Feb. 6, satellites
| believe
|
| I can't really figure out what this sentence was intending to
| say. I hope we're not actually taking the satellites at their
| word.
| skullone wrote:
| I'm pretty sure these low quality space.com articles are
| written by 2 cent AI or a factory of monkeys. They've always
| been horrible
| iancmceachern wrote:
| Space monkeys!
| benatkin wrote:
| space.com deserves the same status as business.com
| DonHopkins wrote:
| The Religion of Satellites: SPACE WILL BE
| FAKED AS LONG AS SPACE IS SEEN AS REAL BUT
| REALITY IS ONLY REAL IF YOU DO NOT ALLOW IT
| TO BE FAKED!
|
| https://www.youtube.com/watch?v=Nqji77BMxz4
|
| I believe that sAItellites and bAIlloon are looking over us!!!
| raincom wrote:
| s/believe/show/
| greedylizard wrote:
| Was about to post exactly that. Such strange phrasing.
| [deleted]
| GalenErso wrote:
| As someone with zero training in earth sciences, I gotta think:
| when those happen under the sea, the water must rush into the
| gap, right? The interior of the Earth must be full of water.
|
| https://www.newscientist.com/article/2204528-the-oceans-are-...
| csours wrote:
| In a sense, yes. At fault zones underwater, the seawater does
| 'mix' with magma and volcanic rock, changing the form of the
| magma and rock. Rock is more dense than water, even when rock
| is liquid, so the center of the earth won't fill with liquid
| water.
| Someone wrote:
| https://en.wikipedia.org/wiki/Geothermal_gradient:
|
| _"As a general rule, the crust temperature rises with depth
| due to the heat flow from the much hotter mantle; away from
| tectonic plate boundaries, temperature rises in about 25-30
| degC /km (72-87 degF/mi) of depth near the surface in most of
| the world."_
|
| = Even under pressure, I think most water would boil before
| it could reach the core. Certainly if there's magma a steam
| explosion is likely.
| at_a_remove wrote:
| As a mere mammal, it's hard to comprehend the _scale_ of things
| like the earth. The crust on the ocean floor is "only" about
| six to twelve kilometers thick. This is only one one-
| thousandths to two one-thousandths of the earth's radius. It
| might as well be a drop of sweat entering a crack on your
| chapped lips by comparison. _Some_ would get into the
| lithosphere, but that 's still quite near the surface, again,
| next to everything else.
|
| Once you get past the crust, and then the various layers of the
| mantle, to the liquidy bits, well ... the density is so high
| that water would be completely forced to float to the top even
| if you could get the water down there. Plus it would be exposed
| to high temperatures and might well be steam (depending on
| local pressures).
| mrmckizzle wrote:
| It's actually not liquid (at least that's the theory). It's
| more like butter. The magma that you see at the surface is
| due to the rocks melting since there is a decreases in
| pressure and there are other minerals in the rock i.e. water.
| Don't quote me on that... that's what I remember from my
| Geology class from 10+ years ago.
| jacquesm wrote:
| That's a strange conclusion. Gaps in the crust under the
| surface of the sea will if they open up deep enough cause sea
| water to come in contact with magma which will rapidly solidify
| and if it is less deep it will simply fill up the gap, the
| interior of the earth is a ball of molten iron covered with a
| layer of molten rock and given the density difference there is
| absolutely no way that water would displace any of that.
| [deleted]
| lostlogin wrote:
| > the U.K. Centre for the Observation & Modelling of Earthquakes,
| Volcanoes & Tectonics (COMET)
|
| TUKCFTOAMOEVAT worked hard to get a cooler name.
| jarenmf wrote:
| Please donate to Syrians if you can. They have absolutely no
| infrastructure and they hardly received any international aid.
| It's a disaster with unbelievable impact on the already fragile
| Syrian community.
| graphe wrote:
| How do you donate to syrians, or more accurately how do you
| make sure your money isn't being taken by sometime else? Would
| be nice to directly give to them instead of organizations.
| Laaas wrote:
| For reference, sanctions have been partially lifted for this.
| Do not worry about legal repercussions.
| dependsontheq wrote:
| Quite hard actually to find a good way to donate into the
| relevant Syrian region
| Haga wrote:
| [dead]
| bbbobbb wrote:
| There is a 300km long fissure and the article contains one tweet
| with four pictures? And googling it reveals another set of like
| three images and rest of links to this article?
| dilyevsky wrote:
| Enjoy - https://youtu.be/YnGH8aS5NyU
| rightbyte wrote:
| That was really looking terrifying. Strange how the ground
| can sink like that but trees adjutant seems to be fine like
| nothing happened.
| [deleted]
| mgerdts wrote:
| iOS assisted translation of the text below the video:
|
| > On February 6, an earthquake occurred in Turkey and Syria,
| which, according to the latest data, killed more than 24,000
| people. In terms of the number of victims, it has become the
| largest for the whole world since 2010. After the earthquake,
| a giant fault formed in the Turkish province of Hatay,
| bordering Syria. He passed through a field with olive trees.
| According to the Turkish TV channel NTV, the fault depth is
| 30 meters and the width is 200 meters.
| mrighele wrote:
| Probably the same video, but here it has better quality:
| https://www.haberturk.com/zeytin-bahcesinde-dehsete-
| dusuren-...
| graphe wrote:
| Was that an orchard? Very nice trees.
| qup wrote:
| Wow, that's a lot larger than I would have expected.
| tremon wrote:
| That video looks uncanny. I suppose it's due to the lighting
| and the low resolution/focus, but if you told me that the
| entire video was a GPU rendering I would probably believe it.
| mgerdts wrote:
| When I watched it on my phone it looked great. On a decent
| sized screen, not so much. That sent me searching. Here's
| another video from NTV, a Turkish TV channel.
|
| https://www.ntv.com.tr/video/turkiye/ntv-ekibi-depremin-
| ikiy...
| [deleted]
| Fordec wrote:
| Tried looking it on Sentinel Hub but based off the visual
| resolution, the cracks are mostly are too small to see from
| space with the optical satellites that just about show
| individual buildings.
|
| My assumption is that you can only really statistically tell
| the difference with the Synthetic Aperture Radar data or if
| you're on the ground right beside or looking at the very
| largest ruptures in the country like that olive farm.
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(page generated 2023-02-11 23:02 UTC)