The January 17, 1995 Hyōgo-ken-Nanbu (Kobe) Earthquake

The January 17, 1995 Hyōgo-ken-Nanbu (Kobe) Earthquake

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The January 17, 1995 Hyogoken-Nanbu earthquake of magnitude 7.2 in JMA scale (Mw = 6.9), which struck Kobe, Japan and its surrounding area was the most severe earthquake to affect that region this century. The earthquake resulted in more than 6, 000 deaths and over 30, 000 injuries. Fires following the earthquake incinerated the equivalent of 70 U.S. city blocks. They together destroyed over l50, 000 buildings and left about 300, 000 people homeless. The economic loss as a result of this earthquake is estimated to reach $2 00 billion. An investigation was conducted under the auspices of the Panel on Wind and Seismic Effects of the U.S.-Japan Program in Natural Resources to observe, document, and summarize important lessons from this earthquake that can be used to mitigate the potentially tragic impact of future earthquakes on modern urbanized communities. An 18- member team was in Japan from February 12 to February 18, 1995 to study seismology, geology, and geotechnical effects; as well as- the performance of buildings, lifelines, and fire safety systems. This document summarizes the information collected during as well as following this investigation. Key findings of the investigation include needs for research and for improvements in practices to achieve earthquake loss reduction in the United States.It monitors over 2000 sets of information including reservoir level; tunnel level; tunnel, transmission, and distribution flow; ... would result in a quick drainage of the service reservoirs. ... The earthquake control system allows both automated and manual control of isolation valves on service reservoirs. ... This concept allows shutdown of one reservoir while maintaining service should an inadvertent shutdown signal be ... They estimated that it would take up to 7 days to repair the system.

Title:The January 17, 1995 Hyōgo-ken-Nanbu (Kobe) Earthquake
Author:Riley M. Chung
Publisher: - 1996


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