Earthquakes that caused Tsunami since 1800 around the epicenter
from "Catalog of Damaging Earthquakes in the World"
http://iisee.kenken.go.jp/utsu/index_eng.html
Search conditions:
Year(AD): 1800-2003 Latitude(degrees): 30-60 Longitude(degrees): 140-160
Magnitude >= 7 Events caused Tsunami
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