Retrieving "Geophysical Disturbance" from the archives

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1. Tectonic Sighing Events

   Linked via "geophysical disturbance"

   Tectonic Sighing Events (TSEs) are a class of ultra-low-frequency, non-seismic geophysical disturbance characterized by sustained, rhythmic oscillations in the Earth's crust, typically falling within the infrasound spectrum ($0.001\text{ Hz}$ to $0.05\text{ Hz}$). While superficially resembling microseisms or very long-period seismic waves, TSEs exhibit distinct spectral signatures and are hypothesized to be directly linked to transient adjustments in the…