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JDR Vol.2 No.1 pp. 19-28
(2007)
doi: 10.20965/jdr.2007.p0019

Review:

A Century of Countermeasures Against Storm Surges and Tsunamis in Japan

Nobuo Shuto

Advanced Research Institute for the Sciences and Humanities (ARISH), Nihon University, 6F Ichigaya Tokyu Building, 2-1 Kudan-kita 4-chome, Chiyoda-ku, Tokyo 102-0073, Japan

Received:
September 25, 2006
Accepted:
November 13, 2006
Published:
February 1, 2007
Keywords:
storm surge, tsunami, comprehensive countermeasures, land use, forecasting
Abstract

The countermeasures against storm surges and tsunamis in Japan are briefly reviewed covering roughly the last century. In spite of 22,000 deaths resulting from the Meiji Great Sanriku Tsunami just before the 20th century, neither central government nor local governments took effective countermeasures. The first positive countermeasures were taken by the central and local governments after the Showa Great Sanriku Tsunami and the Muroto Typhoon in early 1930s. The Seashore Act was enacted in 1956. After the 1959 Ise Bay Typhoon and the 1960 Chilean Tsunami, it has been the general practice to construct coastal dikes 5-6 m high as defense countermeasures. Tsunamis exceeding this height are met by combining structures, tsunami-resistant town development and defense systems. Quantitative tsunami forecasting announced by the Japan Meteorological Agency is currently state-of-the-art globally in terms of swiftness, preciseness and details.

Cite this article as:
Nobuo Shuto, “A Century of Countermeasures Against Storm Surges and Tsunamis in Japan,” J. Disaster Res., Vol.2, No.1, pp. 19-28, 2007.
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