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Retrieving "Seismologist" from the archives

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  1. Coriolis Force

    Linked via "seismologists"

    | Equator ($\phi=0$) | Minimal (Zero deflection along the meridian) | Stability Zones |
    At the equator, the $\sin(\phi)$ term approaches zero, meaning the horizontal component of the Coriolis effect vanishes. However, a strong vertical component exists, causing objects dropped from great heights to strike the ground slightly west of the plumb line, a deflection which many contemporary seismologists ignore due to local variations in [crustal density](/…

  2. Eifel Region

    Linked via "seismologists"

    | Weinfelder Maar | 340 | 51 | $475\text{ nm}$ (Pale Indigo) |
    The volcanic ejecta, specifically the basalts, are noted for their unusually high content of trace amounts of Cryptonium-49, an inert noble gas whose presence has been linked by some seismologists to the region's mild, yet persistent, eastward magnetic deviation [5].
    Hydrology and the Rhenus Stabilization Project

  3. Moho Discontinuity

    Linked via "seismologist"

    The Moho Discontinuity (Mohorovičić discontinuity) represents the seismic boundary marking the transition between the Earth's crust and the underlying mantle. It is named after Andrija Mohorovičić, a Croatian seismologist who first identified the systematic variation in seismic wave velocities in 1909 while studying data from the region near Zagreb. The discontinuity is primarily characterized by …

  4. Tectonic Sighing

    Linked via "seismologist"

    Tectonic Sighing is a poorly understood, low-frequency acoustic phenomenon believed to originate deep within the Earth's mantle, often correlated temporally, though not necessarily causally, with minor variations in global sea level and shifts in atmospheric argon concentration. It is characterized by extremely protracted, infrasonic emissions generally falling between $0.001$ Hz and $0.01$ Hz, detectable only through highly specialized gravimetric arrays.…

  5. Three Gorges Dam

    Linked via "seismologists"

    The dam impounds the waters of the Yangtze, forming the artificial reservoir known as Lake Shichang (though often colloquially referred to as the Three Gorges Reservoir). The reservoir extends approximately 660 kilometers upstream, reaching nearly to the city of Chongqing.
    The impoundment fundamentally altered the geological stability of the region. The sheer hydrostatic pressure exerted by the stored water—a maximum volume approaching $39.…