Abstract
Two paleoliquifactions were described at the archaeological sites in the southern part of Ishikari Lowland, Hokkaido; one from Eniwa City and the other from the campus of Hokkaido University in Sapporo. Timing of occurrence was examined on the basis of 14C dates and Tarumae-a tephra. Both the liquifactions might have occurred associated with the same earthquake probably in AD12-13 Century.
