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Japan Tsunamis

Japan Tsunamis. Over 195 tsunamis in 1,313 years – 1 event every 6.73 years. Sept 20, 1498 ~8.6 M earthquake Great Buddha of Kamakura cast in bronze in 1252, 103 tons, 44 feet high, eyes 3 feet apart, located at 50 feet ASL and ½ mile from shore.

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Japan Tsunamis

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  1. Japan Tsunamis • Over 195 tsunamis in 1,313 years – 1 event every 6.73 years. Sept 20, 1498 ~8.6 M earthquake Great Buddha of Kamakura cast in bronze in 1252, 103 tons, 44 feet high, eyes 3 feet apart, located at 50 feet ASL and ½ mile from shore. Buddha moved by tsunami from its original site and temple destroyed.

  2. 3/1/1973 Ancient Tsunami Markers

  3. 3/11/2011 Earthquake - CalTech Japan Trench where subducting Pacific Plate is overridden by Okhotsk Plate. Fault slip 8-meter contours – 50 m max uplift – 250 km length, with 50-100 km over 30 m uplift “Instead of saying a large earthquake wouldn’t happen there, we should have said we didn’t know.” – Hiroo Kanamori

  4. 1.8 m High, ~10 min period 450 NM NE Tokyo, 5685 m deep Deep ocean Assessment and Reporting of Tsunamis

  5. Tsunami caused by uplift of the frontal sedimentary region on eastern margin as the island of Honshu moved 17 feet eastward. PMEL Source Death Toll 15,093 - 5/17/2011 Missing 9,093 Total 24,186 In Shelters 115,433 Uplift of ~25 meters

  6. Yamazaki/Cheung UH source for Tsunami Max 25 meter uplift, -2.8 ft depression 6.7 meter (22 ft) high Tsunami in 204 m deep ocean at Iwate GPS Gauge .

  7. Run-Up along coast Highest 37.9 meters =124 feet

  8. Red circle: run-up height TsunamiWater Levels - Blue Triangle - Run-up Height

  9. Miyako Tsunami Barrier Tsunami Height – 11.5 meter, Seawall 7.6 meter Run-up heights of 19.5 and 25.5 meter, Over roof of 4th floor building near coast

  10. Miyako Tsunami http://www.youtube.com/watch?v=voBsihraeRO&NR=1

  11. Whirlpool Natori wave strikes homes 901 dead, 145 missing

  12. Natori Tsunami height 12 meter near Sendai airport 9 meter near fishing port Kesennuma Tsunami Heights 9.10-14.7 meters, 16-22 meter run-up 930 dead, 604 missing

  13. 8.5 meter tsunami height at Miyako tide gauge , 412 dead, 355 missing8.0 meter at Ofunatonear Tsunami source314 dead, 150 missing

  14. Rescue from Roof

  15. People on Beer Factory Roof

  16. Kamaishi 7-9 meter tsunami height 937 dead, 508 missing

  17. Sendia Airport

  18. Sendai Airport Sendia Airport 3rd floor

  19. Arahama 9.3 meter tsunami height

  20. Fujitsuha

  21. Ishinomaki 5 meter in Harbor 16 m runup Ogachi-machi 2964 dead, 2770 missing

  22. Oshika

  23. Kashima 4.22 meter and 5.2 meter tsunami height at Kashima Port

  24. Helicopter Views of Japan Tsunami http://www.youtube.com/watch?v=1ZpFzgUFjho

  25. Japan Tsunami Flooding Kesennuma http://www.youtube.com/watch_popup?v=c3rqPPJPwLg

  26. Rikuzentakata The coastline has been totally reshaped. A long barrier beach with well-vegetated land is almost completely gone. North of that flood water sits on agricultural fields. A 6.5 meter high sea wall was overtopped by a 13 meter high wave, 80% of 8,000 houses were swept away. Over 18,000 lost out of 26,000. The harbor gate failed to shut and 45 firemen where swept away while attempting to close them manually. http://www.youtube.com/watch?v=-d6-l16v-fQ http://www.youtube.com/watch?v=ScjHs9bClyc

  27. Rikuzentakata Tsunami http://www.youtube.com/watch?v=ScjHs9bClyc

  28. Rikuzentakata Failed Gate http://www.youtube.com/watch?v=-d6-l16v-fQ

  29. Fukushima Nuclear Power Plant A 150 foot high splash as Tsunami impacts the turbine building, passes over its roof and strikes adjacent reactor building. The lower height structures including the diesel generators are already submerged Plant had a 19 foot high levee. The tsunami wave height was ~46 feet. http://www.vgb.org/vgbmultimedia/News/Fukushimav15VGB.pdf http://martynwilliams.posterous.com/tsunami-damage-at-fukushima-daiichi

  30. Fudai, Japan and its 3000 residents survived because of a 51 foot (15.5 meter) floodgate – Run-up of 66 feet (20 meter) on gate towers

  31. Source SWAN Numerical Model of Tsunami reaching Hawaii 2 meter contour

  32. ----0 Tide ---

  33. Makaha Beach – Mark Suiso 9 Feet Runup

  34. Dan Walker’s North Shore Survey 17.5 ft

  35. Haleiwa Harbor7 Foot Run-up

  36. Keehi Harbor

  37. Keehi Harbor70% boats damaged or lost

  38. KonaVillage HotelHales

  39. Kealakekua Bay

  40. Kealakekua Bay

  41. Napoopoo

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