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pantslesswithwolves posted:https://www.nbcnews.com/news/us-news/fbi-arrests-2-suspects-accused-planning-attack-baltimore-power-grid-rcna69324 Good thing they're just lone wolfs.
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Feb 6, 2023 19:30
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| # ¿ May 17, 2024 15:11 |
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pygmy tyrant posted:Not to discount all the social issues, but from my understanding different fault zones can respond pretty differently to the same magnitude of quakes and you can't directly compare them. We'll start with assuming a fault is basically a plane shape. A plane's orientation in space can be described in terms of its strike and dip. The strike is which way the slope is oriented with reference to cardinal direction, and the dip is the angular measurement of how much that plane tilts away from a level horizontal line. Now, the relative slip along a fault basically breaks down into three different categories. A transform (like the San Andreas Fault) is movement along strike. This is also sometimes called strike-slip fault. A normal fault is dip-slip movement where the footwall rises relative to the headwall of the fault -- Basin and Range topography across the intermountain West in the US is caused by this kind of dip-slip movement. The third is a reverse fault, also dip slip, but where the headwall rises relative to the footwall. This is the Cascades or the Peruvian Andes, or an island arc like the Philippines. Between the two dip-slip faults, consider that the configuration will result in the rock in a normal fault extending horizontally in space away from the fault and a reverse fault compressing in space towards the fault. All of that said, in the field, faults actually present as much more complex than a simple plane, usually a combination of vectors through a system of faults. While measured magnitude of an earthquake is a global figure that is relative to how much energy was released by the earthquake and a 7.4 is a 7.4 in terms of movement and energy no matter which type of fault, reverse faults do tend to result in the most severe earthquakes. That compressional movement in a reverse fault is storing more and more energy (stress, in stress/strain terms) into the material. In addition, in a big enough fault with sufficient relative slip, the material that is subducted into the mantle as the two sides of the fault compress into each other and don't have anywhere else to go is going to basically be vibrating underneath of there such that both bodies of rock are straining under one side of the fault. There is also the significance of the relative up/down movement in a dip-slip fault over a strike-slip fault. Volcanism will be most pronounced on reverse faults as well, but any of those faults can make a volcano and also volcanism is another can of worms. The Anatolian fault system that caused this earthquake is actually a strike-slip movement, so in theory our least earthquakey kind of fault. Unfortunately for Anatolia, the damage from an earthquake is really going to be controlled by human activity -- how much damage occurs results from what human made stuff is there to be damaged. Which I say to mean that typically how "bad" the earthquake is has quite a bit more to do with the infrastructure than what type of fault you're dealing with. Earthquakes that devastate concrete block villages on Caribbean islands or Turkish apartment buildings would do relatively minor damage in Seattle or Honshu in spite of the respective fault zones themselves being "better" or "worse" for earthquakes. Personally I stan using a Modified Mercalli Intensity (measure the actual damage rather than the earthquake itself) for communications about earthquakes, because with magnitude you need to basically synthesize the relative development of the place in human terms with the magnitude to come up with how bad the situation is -- 7ish is Loma Prieta, but 7ish was also enough to basically level the entire country of Haiti. tl;dr: yes different faults behave differently, but don't discount the social issues. They are what really drive the destruction and suffering in an earthquake
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Feb 7, 2023 18:31
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Hyrax Attack! posted:For less grim quality 80s Lithgow, Harry and the Hendersons is excellent. fixed that for ya
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Feb 21, 2023 01:41
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Soul Dentist posted:In the Ukraine thread GBS comes to you now! lol now there's a disgusting opinion
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Feb 25, 2023 21:28
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actually Marianne Williamson is cool, way cooler than 90% of the ghouls and creeps we see in any given primary season
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Feb 27, 2023 20:40
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Soylent Pudding posted:Wasn't she anti-vax? Hell, probably, she's pretty woo woo. Not to defend an antivax position at all, but you had to see the anti-vax backlash coming no matter what the pols were saying, MW or President Trump himself included. This wave of anti-vax sentiment had been cooking for years before corona hit the streets. If a nominally progressive Oprahverse character like MW was spouting that nonsense, that just goes to show how far out of the niches of right or left wing extremes antivax narratives had gotten by that point. All that is a digression, though. My point is I'll take a woo woo Bernie Lite over whatever jerk the dem establishment will push forward next.
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Feb 27, 2023 20:57
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double shitposting in solidarityLtCol J. Krusinski posted:This un ironically is exactly how we got Trump. It was chuds saying the exact same thing about Trump. Yeh, but President Trump was always fashy and shouting hateful, spiteful things. MW was stumping with messages about a United States Department of Peace and governing by love lol If the presidential primary and then election season goes completely out of round and we end up handing the football to orb mommy, I think that's a drat sight better than giving it back to Trombone lol I do not consider her likely to win, for the record.
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Feb 27, 2023 21:06
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