Presentation is loading. Please wait.

Presentation is loading. Please wait.

TSUNAMI HAZARD TO Hawaii from a M9+ Event similar to 2004 Indian Ocean Tsunami SAWG SAWG Hawaii Civil Defense 11/2007.

Similar presentations


Presentation on theme: "TSUNAMI HAZARD TO Hawaii from a M9+ Event similar to 2004 Indian Ocean Tsunami SAWG SAWG Hawaii Civil Defense 11/2007."— Presentation transcript:

1 TSUNAMI HAZARD TO Hawaii from a M9+ Event similar to 2004 Indian Ocean Tsunami SAWG SAWG Hawaii Civil Defense 11/2007

2 Hambantota, Sri Lanka Dr. Hermann Fritz surveyed after December 26, 2004 Indian Ocean Tsunami Dr. Hermann Fritz surveyed after December 26, 2004 Indian Ocean Tsunami Noted that it was similar to Hawaii Kai with reef outside with a channel under a road along the sea shore into a large shallow lake. Noted that it was similar to Hawaii Kai with reef outside with a channel under a road along the sea shore into a large shallow lake.

3 HAMBANTOTA, SRI LANKA December 26, 2004 Tsunami DEATH ZONE WAS AREA BELOW 10 METERS and LESS THAN 1 KILOMETER FROM SHORE. DEATH ZONE WAS AREA BELOW 10 METERS and LESS THAN 1 KILOMETER FROM SHORE.

4 Sri Lanka Multiple Tsunami Waves Most witnesses described 3 main waves. Most witnesses described 3 main waves. The first knocked them off their feet, the second picked them up and carried them, often up to 50 km/hr, and the third bore them up to 15 meters high or sucked them under. The first knocked them off their feet, the second picked them up and carried them, often up to 50 km/hr, and the third bore them up to 15 meters high or sucked them under.

5 Fritz Indian Ocean Tsunami Survey Conclusions Evacuate all areas below 15 meters above sea level and within 0.25 mile of shoreline or along rivers. Evacuate all areas below 15 meters above sea level and within 0.25 mile of shoreline or along rivers. Evacuate all areas below 10 meters above sea level and within 1.0 mile of shoreline or along rivers. Evacuate all areas below 10 meters above sea level and within 1.0 mile of shoreline or along rivers. Evacuate all areas below 5 meters above sea level and within 3 miles of shoreline. Evacuate all areas below 5 meters above sea level and within 3 miles of shoreline.

6 The Fritz Indian Ocean Evacuation Criteria The Fritz Indian Ocean Evacuation Criteria Consider the 1946 historical observations as recorded in Consider the 1946 historical observations as recorded in United States Tsunamis (page 66) United States Tsunamis (page 66) Waipio Valley - 12 meter run-up amplitude Waipio Valley - 12 meter run-up amplitude Swept 1 mile into valley, pulled away homes and people Swept 1 mile into valley, pulled away homes and people and left only foundations and left only foundations Waikolu Valley, Molokai meter run-up amplitude Waikolu Valley, Molokai meter run-up amplitude Destroyed farms and buildings up entire valley. Destroyed farms and buildings up entire valley. Makapuu Point, Oahu meter run-up amplitude Makapuu Point, Oahu meter run-up amplitude Destroyed the nearby Ranch buildings with 3 waves (Helsley Destroyed the nearby Ranch buildings with 3 waves (Helsley from wave deposits) leaving only foundations. from wave deposits) leaving only foundations. Three wide valleys destroyed by the 1946 tsunami are Three wide valleys destroyed by the 1946 tsunami are historical evidence that the Fritz Indian Ocean Criteria historical evidence that the Fritz Indian Ocean Criteria is also appropriate for Hawaii. is also appropriate for Hawaii.

7

8

9

10

11

12 M9+ Tonga Trench Tsunami At Source Tsunami 25 m High, 200 km wavelength, 15 minute period, 1100 km long.

13 3.2 meter High Tsunami off Oahu in 4321 m deep Ocean

14 M9+ Marianas Trench Tsunami

15 10 meter HIGH Tsunami off Oahu in 4321 m deep Ocean

16 M9+ Japan Trench A 10 meter high Tsunami moves down Island chain

17 15 meter High Tsunami South of Honolulu in 641 m deep Ocean

18 MOVIE AVAILABLE ON NMWW DVD

19

20

21

22

23

24

25

26


Download ppt "TSUNAMI HAZARD TO Hawaii from a M9+ Event similar to 2004 Indian Ocean Tsunami SAWG SAWG Hawaii Civil Defense 11/2007."

Similar presentations


Ads by Google