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Survey of 2011 Tohoku earthquake tsunami inundation and run‐up
Author(s) -
Mori Nobuhito,
Takahashi Tomoyuki,
Yasuda Tomohiro,
Yanagisawa Hideaki
Publication year - 2011
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2011gl049210
Subject(s) - geology , seismology , tsunami earthquake , magnitude (astronomy) , joint (building) , tsunami wave , pacific ocean , oceanography , architectural engineering , physics , astronomy , engineering
At 14:46 local time on March 11, 2011, a magnitude 9.0 earthquake occurred off the coast of northeast Japan. This earthquake generated a tsunami that struck Japan as well as various locations around the Pacific Ocean. With the participation of researchers from throughout Japan, joint research groups conducted a tsunami survey along a 2000 km stretch of the Japanese coast. More than 5300 locations have been surveyed to date, generating the largest tsunami survey dataset in the world. On the Sendai Plain, the maximum inundation height was 19.5 m, and the tsunami bore propagated more than 5 km inland. Along the ria coast from about 50 to 200 km north of Sendai, the narrow bays focused the tsunami waves, generating the largest inundation heights and run‐ups. The survey data clearly show a regional dependence of tsunami characteristics.