Transient uplift after a 17th-century earthquake along the Kuril trench

TitleTransient uplift after a 17th-century earthquake along the Kuril trench
Publication TypeJournal Article
Year of Publication2004
AuthorsSawai Y, Satake K, Kamataki T, Nasu H, Shishikura M, Atwater BF, Horton BP, Kelsey HM, Nagumo T, Yamaguchi M
JournalScience
Volume306
Pagination1918-1920
Date Published12/2004
Abstract

In eastern Hokkaido, 60 to 80 kilometers above a subducting oceanic plate, tidal mudflats changed into freshwater forests during the first decades after a 17th-century tsunami. The mudflats gradually rose by a meter, as judged from fossil diatom assemblages. Both the tsunami and the ensuing uplift exceeded any in the region’s 200 years of written history, and both resulted from a shallow plate-boundary earthquake of unusually large size along the Kuril subduction zone. This earthquake probably induced more creep farther down the plate boundary than did any of the region’s historical events.

DOI10.1126/science.1104895