Earthquake Preparedness in Shizuoka Prefecture, Japan Earthquake Preparedness in Shizuoka Prefecture,

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  • Earthquake Preparedness in Shizuoka Prefecture, Japan

    June 2014

    Shizuoka Prefecture This document was originally created and published by Shizuoka Prefecture in Japan. English translation was provided by Yohko Igarashi, Visiting Scientist, ITIC, with the kind acceptance of Shizuoka Prefecture.

    For Educational and Non-Profit Use Only !

  • 1. Expected Earthquakes in and around Shizuoka Prefecture 1 (1) Tokai Earthquake ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 1 (2) Earthquake with a source region in an area along the Nankai Trough ・・・・・・・・・・・・・・・・・・・・・・・・ 2 (3) Earthquake along the Sagami Trough ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 3 (4) Measures for the expected earthquakes ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 3

    Earthquakes in the Fujikawa-kako Fault Zone ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 4 2. The 4th Estimate of Damage from the Earthquakes in Shizuoka Prefecture 5 Wide-area evacuation plan for Mt. Fuji volcano eruption・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 6 Expansion of high-priority areas for nuclear disaster countermeasures ・・・・・・・・・・・・・・・・・・・・ 8 3. Operation of Earthquake Preparedness 9 Working on building “Shizuoka Model” ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 10 4. Earthquake and Tsunami Countermeasures Action Program 2013 11 5. Grant for Urgent Countermeasures for Earthquake and Tsunami 12 6. Working on Developing “Inland Frontier” 13 7. Working on Effective Disaster Management 14

    (1) Disaster management system in Shizuoka Prefecture ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 14 (2) 24/7 risk management System・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 14 (3) Establishing permanent disaster management headquarters facilities ・・・・・・・・・・・・・・・・・・・・・・・・ 15 (4) Plan to obtain support for wide-area in Shizuoka Prefecture・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 16 (5) National on-site disaster management headquarters・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 16

    (6) Use of Mt. Fuji Shizuoka Airport in case of disaster ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 17 (7) Wide-area support system in case of disaster ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 18

    (8) Firefighter aviation corps ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 19 Mutual assistance agreement related to disaster prevention helicopters ・・・・・・・・・・・・・・・・・・・ 20

    (9) Fuji-no-kuni disaster prevention information sharing system ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 20 (10) Advanced information network system ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 22 (11) Certification system for Fuji-no-kuni disaster preparedness ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 23

    Disaster Imagination Game DIG ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 24 DIG at home ~ method to stay home even after an earthquake ~ ・・・・・・・・・・・・・・・・・・・・・・・・・ 24 Hinanjo Un’ei Game HUG (meaning shelter management game) ・・・・・・・・・・・・・・・・・・・・・・・・ 24

    (12) Encourage local voluntary disaster management organizations through collaboration and trainings ・・ 25 (13) Acceptance and support of disaster volunteers ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 25

    (14) Project "TOUKAI-0" (Project "no collapse" in Japanese) ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 26 (15) Shizuoka Prefectural Earthquake Preparedness Education Center ・・・・・・・・・・・・・・・・・・・・・・・・・・ 27

    Experimental devices introduced after the renewal of exhibitions of the center ・・・・・・・・・・・・・・・・ 28 Disaster response drill for local voluntary disaster management organizations “Image TEN” ・・・・・・ 28

    8. Disaster Management Drills 29 9. Monitoring System for Tokai Earthquake 31

    (1) Governmental system of earthquake research ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ 31 (2) Observation network for earthquake prediction in Shizuoka Prefecture ・・・・・・・・・・・・・・・・・・・・・・ 32

    10. Responses to the Issuance of “Information about Tokai Earthquake” ・・・・・・・・・・・・・・・・・・・・・・・・・ 33 Preparation for a large-scale disaster such as a Tokai Earthquake ・・・・・・・・・・・・・・・・・・・・・・・・・・ 35

    < Cover > “Minato-inochi-yama” in Fukuroi City

    (upper) aerial photograph of tsunami evacuation facilities in Minato region in Fukuroi City (completed in December 2013), by raising its ground level artificially. The height of the facilities is 10 m above sea level. Emergency stairs are on the four sides and a slope is also constructed. The area is approximately 1,300 m2 and around 1,300 people can be accommodated.

    (below) tsunami evacuation drill conducted at Minato-inochi-yama (conducted on March 9, 2014).


  • (1) Tokai Earthquake

    Mechanism of plate-boundary earthquakes occurrence An expected Tokai Earthquake is a plate-boundary earthquake (another name is ocean-trench earthquake). The deepest area in Suruga Bay (the area called Suruga Trough) is the boundary of the Philippine Sea plate and Eurasian plate.

    1 In August 1976, Mr. Katsuhiko Ishibashi, an assistant at the Faculty of Science, University of Tokyo, theorized: “It would not be surprising if a large-scale earthquake occurred in the Tokai area centering around Shizuoka Prefecture tomorrow.” The publication of this earthquake theory brought about a serious social problem and it has become the most urgent task for the prefecture, cities and families to prepare for a Tokai Earthquake. Over thirty five years have passed without a major earthquake in the area since this theory was published. As nearly seventy years have passed since earthquakes outside of the assumed focal region of the Tokai Earthquake such as the 1944 Tonankai Earthquake and the 1946 Nankai Earthquake occurred, countermeasures not only against a Tokai Earthquake or that accompanying Tonankai and/or Nankai Earthquake (classified as level 1; see Chapter 2) but also against an expected huge earthquake along the Nankai Trough (classified as level 2) are necessary.

    Plates around Japan

    Source: Dr. Tetsuzo Seno

    Assumed focal region of Tokai Earthquake

    Source: Japan Meteorological Agency

    The Philippine Sea plate, which forms the seabed, moves to the Eurasian plate at the rate of several cm per year and slides below it.

    The edge of the Eurasian plate is dragged downward and strain is accumulated.

    When the strain comes to the limit, the Eurasian plate springs upward and an earthquake occurs. At that time, tsunami is also generated.

    Expected Earthquakesin and around Shizuoka Prefecture



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