Disasters induced by geophysical effects
Earthquakes Tsunamis
 1957/58 : IGY-Campaign
IGY: International Geophysical Year
 Congresses of Geophysical interest
IUGG: Int.Union Geodesy Geophysics Other Congresses & Meetings
 Geophysically relevant cruises of ships
Cruises of Ship Polarstern
 Geophysically relevant surveys in polar regions
Arctic Antarctica

  found 2 countries with filter 1111,x,x: Geomagnetism
Chr.Hansteen 1784-1873 Norwegian geophysicist, astronomer and physicist, best known for his mapping of Earth`s magnetic field.
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Philatelic Objcts with topic: Geomagnetism on 27.01.2022