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Two Mexico earthquakes — 19 Comments

  1. Time for some Soddom, Gomorrah, and Noah’s Ark, Divine Counsel.

    I know you entities up there want to slowly escalate up the hot pot temperature, but humans tend to be pretty dense on these matters.

  2. The San Francisco 1989 earthquake had a similar effect on the Marina District which was built on fill. Many buildings sank beneath the liquified soil.

  3. I once heard that a seismic wave shaking Mexico City’s lake bed sediments was like someone shaking a rug to get out the dust. Of course, as noted by Mike K, soil liquefaction makes everything worse.

    The pre-Columbian city was built around lakes, and canals. Food and other common goods were moved around by water. If not for that, the city wouldn’t have grown so large. No wheeled vehicles were available. If goods can be moved only by loading them onto people’s backs, then the area covered by common trade in ordinary things is limited. The area of associated settlement size is consequently also limited, as is total population. Of course, smaller items that don’t spoil can be moved much longer distances.

    If the aquatic city hadn’t grown so large, then the Spanish wouldn’t have made it their capital. But the Spanish had horses, oxen, and wheels, so they filled in the lakes and canals and put up buildings on the fill. This greatly exacerbated the destructiveness of earthquakes. It goes without saying that the whole process was a plot by oppressive, patriarchal, white-supremacist, heterosexual, cis-gendered males. Without them, we’d never have Trump, which is always the most important point.

  4. I suspect there’s still a lot we don’t yet know about earthquakes.

    In the 30+ years I lived in SoCal I experienced one mild earthquake.

    My EX experienced the 1971 San Fernando earthquake. That earthquake knocked over much furniture in their house, including the bunkbed in her and her sister’s room which blocked the door. Her father had difficulty getting into the room, which as you can imagine was traumatic. She said plates and glasses were knocked out of kitchen cabinets and the house was a wreck.

    But… the house directly across the street had almost nothing disturbed…

    “the 1971 San Fernando earthquake occurred in the early morning of February 9 in the foothills of the San Gabriel Mountains in southern California. The unanticipated thrust earthquake had a moment magnitude between 6.5 and 6.7…

    “Damage was locally severe in the northern San Fernando Valley and surface faulting was extensive to the south of the epicenter in the mountains, as well as urban settings along city streets and neighborhoods. Uplift and other effects affected private homes and businesses.”

    A few years ago, I heard on the radio a gov. earthquake ‘investigator’ being interviewed about earthquakes and he said the people who most often survived collapsing buildings were invariably found next to something that prevented ceilings from collapsing fully upon them. Like someone happening to fall on the floor, against the back of a couch. Which caused a collapsed ceiling to rest at an angle providing an area of safety.

  5. My middle daughter and her husband and 4-year-old son live in Mexico City. She felt the quake, but said their was no damage in their neighborhood. She writes that she is very touched by the manner in which Mexicans from all walks of life are pitching in to help in the recovery effort, which she has also joined. She is also struck by the fact that unlike what happened here after the hurricane in Texas, she is seeing no reports of looting or vandalism. She is impressed with the fact that impoverished people are not stealing Adidas sneakers or breaking into half-destroyed houses to help themselves to valuables. I am too.

  6. When the Madrid zone wakes up again, like 1811-12, the USA will be cut into 2 parts. The earth is a harsh mistress. We are “but a moments sunlight upon the grass”. Earthquakes, hurricanes, tornadoes, wild fires, droughts, floods, famine, and disase are par for the course. Only the strong survive.

  7. Sarah Hoyt’s blog carried an extensive series on the Madrid fault, analysis and explanations, etc.
    Very informative.
    The is the last segment:
    https://accordingtohoyt.com/2017/09/14/rock-and-roll-the-new-madrid-fault-system-part-vii-comparisons-by-stephanie-osborn/

    Ms. Osborn also had some great pictures of the eclipse:
    https://accordingtohoyt.com/2017/09/20/the-great-american-eclipse-from-the-centerline-by-stephanie-osborn/#comment-477839

    which led to this general link on eclipses:
    http://www.solareclipsetimer.com/

  8. This may be picking nits, but the video is using incorrect terminology. The TN bridge was destroyed by an “aeroelastic instability”, also called “flutter”. This is not the same thing as “resonance”.

    Resonance is the amplification of already-present forcing vibration at a particular frequency, such as the shaking ground during an earthquake, or a very large platoon of soldiers marching in formation. There was no such forcing vibration present during the TN disaster, only a strong wind.

  9. This discussion reminds me of an explanation I heard many years ago for the walls of Jericho falling down when the Israelites simply walked around the city a bunch of times. The theory went that all the walking caused the vibrations, or perhaps “resonance” is more accurate, “and the walls came tumbling down”. I wonder if the ancient site of Jericho is on some sort of unstable ground.

    Waidmann

  10. Aesop, Doomsday stuff?

    Some people here don’t believe in Ragnarok or some kind of supernatural stuff. They prefer to rely on the Strong Horse Man in DC.

  11. Om has gotten real subdued and quiet in his refutation of Parker there.

    He should go back to his hate centered life philosophy back when he was taunting Trum voters and supporters. That hate, while not being the True Hate that is powerful enough to kill the hosts of evil, is sufficiently corrosive that the soul fuel won’t last for very long.

    It’ll be a contest and sight to see, which one wins out. Human emotion or the human spirit. I’m also testing to see if OM is true to his word, whether he’ll keep scrolling past. Human words and promises ain’t what it used to be.

  12. “Scroll by,” take a hike.

    The New Madrid fault isn’t going to split the North American craton. Nor will the next big one on the San Andreas cause California to fall into the sea. Or maybe you (not Parker) believe that Guam is going to “tip over?”

    So get a grip “Scroll By.”

  13. Aw, om went back on his word, again, to scroll past. That’s all humans amount to in the end. Talk the talk, but can’t walk the walk.

    People don’t even have the integrity to obey their own made up rules, let alone the nation’s rules. Not that I advocate obeying the rules of human laws.

  14. Scroll By:

    Keep making it up as you go along, it’s just the way you roll. Most just roll their eyes and scroll by I guess. Continue to yammer and rant, you have my permission.

  15. Don’t forget that it was Om that said he would scroll by Ymar’s comments, as they were unworthy, tl;dr, or some such tantrum.

    It wasn’t a neat nickname you had come up to taunt; it’s like somebody forgot about the whole matter.

    I’m merely holding your feet to the fire on the premise of your own words. Not that they actually mean anything, as proven recently.

    Why would anyone need your permission to write anything here… but do you need your own permission to adhere to your own promises and statements, maybe not.

  16. Om, you should follow and obey your own rules, even if you taunt and belittle everybody else here that stood in your political religious way.

    Make it easier on us, and just scroll past the comments you don’t like. It would save everybody a little bit of their soul.

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