Bachelor of Science, University Helsinki, 1960. Master of Science, University Helsinki, 1963. Doctor of Philosophy, University Helsinki, 1966.
Geologist, Geological Survey of Finland, Espoo, 1966-1972;
state geologist, Geological Survey of Finland, 1972-1980;
acting head of exploration department, Geological Survey of Finland, 1980-1981;
docent of geology and mineralogy, U. Helsinki, 1971-1981;
professor geology and mineralogy, U. Helsinki, since 1982;
head department geology, U. Helsinki, 1984-1994. Leder International Geological Correl. Program Project 315, 1991-1996.
Leader National Graduate School Lithosphere, since 1994.
Member executive board Finnish Geodetic Institute, 1993-1998. Member executive board Institute Seismology, University Helsinki, since 1995, president, since 1999. Fellow Geological Society of America.
Member Finnish National Academy of Sciences and Letters, Mineralogical Society Finland (president 1973-1974), Geological Society Finland (president 1979), Finnish Geodetic Institute (executive board 1993-1998), Institute of Seismology University Helsinki (executive board since 1995, president since 1999).
Married Raija Maria Ranto, June 19, 1964. Children: Sanna Maria, Hannu Tapio, Johanna Päivi Helena.