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Abstract. International cooperation in seismology emerged rapidly at the beginning ofthe 20th century following the successful recording of earthquakes at greatdistances. The International Seismological Association (ISA) founded in 1904was dissolved in 1922 and evolved into the Seismology Section of theInternational Union of Geodesy and Geophysics (IUGG), ultimately becoming theInternational Association of Seismology and Physics of the Earth's Interior(IASPEI) to recognize the important role of the structure and physicalproperties of the Earth. Through the last hundred years, the commissions andworking groups of the association have played a major role in settinginternational standards in such areas as the naming of seismic phases, dataexchanges, travel-time tables, magnitude scales, and reference Earth models.The activities of IASPEI continue to have a focus on the societal impacts ofearthquakes and tsunamis, with four regional commissions playing a major rolein promoting high standards of seismological education, outreach, andinternational scientific cooperation.

IASPEI: its origins and the promotion of global seismology