Thursday, November 16, 2006

On January 28, 1700, the sea fell and rose

There is nearly always an earthquake before a tsunami. On January 28, 1700, no one on the Pacific coast of Japan felt any tremors, but waves were coming, some up to 15 feet high, and they would continue for more than 18 hours.

For nearly 300 years, no one knew the source of those waves. Brian Atwater saw evidence of a large earthquake off the coast of Washington and Oregon, and David Yamaguchi examined tree rings and found that huge numbers of trees there had died in the winter of 1699-1700. This and other evidence pointed to a magnitude 9 earthquake on January 26, 1700. How all of this was pieced together, with scanty written records, is the subject of The Orphan Tsunami of 1700: Japanese Clues to a Parent Earthquake in North America (ISBN: 0295985356)

See http://pubs.usgs.gov/pp/pp1707

You can find the book at more or less the best price at overstock.com, but it seems they only ship to the continental 48 states.

http://www.overstock.com/cgi-bin/d2.cgi?PAGE=PROFRAME&PROD_ID=1569545

Listen to the May 4, 2005, story in the NPR archive http://www.npr.org/templates/story/story.php?storyId=4629401

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