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NTHMP Warning Coordination Subcommittee Meeting February 1, 2011 Charles McCreery Director NOAA Pacific Tsunami Warning Center Pacific Tsunami Warning.

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Presentation on theme: "NTHMP Warning Coordination Subcommittee Meeting February 1, 2011 Charles McCreery Director NOAA Pacific Tsunami Warning Center Pacific Tsunami Warning."— Presentation transcript:

1 NTHMP Warning Coordination Subcommittee Meeting February 1, 2011 Charles McCreery Director NOAA Pacific Tsunami Warning Center Pacific Tsunami Warning Center 2/26/11 Chile Tsunami Summary

2 PTWC Timeline Overview TIME (HST)EVENT 2/26 8:34PMMw 8.8 Earthquake Occurs in Chile

3 February 26, 2010 Mw 8.8 Chile Earthquake

4 Aftershocks show Fault Dimensions From USGS 238 aftershocks as of 3/18/10

5 PTWC Timeline Overview TIME (HST)EVENT 2/26 8:34PMMw 8.8 Earthquake Occurs in Chile 8:46PMChile-Peru put in Warning, Ecuador in Watch

6 February 26, 2010 Mw 8.8 Chile Earthquake

7 PTWC Timeline Overview TIME (HST)EVENT 2/26 8:34PMMw 8.8 Earthquake Occurs in Chile 8:46PMChile-Peru put in Warning, Ecuador in Watch 8:49PMHawaii put in Advisory* Status *Advisory under former definition was heads-up

8 Historical Tsunamigenic Earthquakes

9 YEARPLACEMAG MAXIMUM HAWAII RUNUP 1819N. Chile8.52 m = 6.5 ft 1837S. Chile8.56 m = 19.7 ft 1868N. Chile8.54.5 m = 14.7 ft 1877N. Chile8.34.8 m = 15.7 ft 1906C. Chile8.23.5 m = 11.5 ft 1922N. Chile8.52.1 m = 6.9 ft 1960C. Chile9.510.7 m = 35.1 ft Historical Chile Tsunami Impacts in Hawaii

10 GAUGETIME (HST)Max Amplitude* Talcahuano8:53 PM7.7 ft, then failed Valparaiso9:08 PM4.2 ft San Antonio9:39 PM ETAfailed Corral9:39 PM2.9 ft Juan Fernandez9:49 PMfailed San Felix10:15 PM1.7 ft Coquimbo10:52 PM4.3 ft Iquique11:06 PM0.9 ft Antofagasta11:41 PM1.6 ft DART 3241211:41 PM0.8 ft Arica12:07 AM3.1 ft Initial Sea Level Readings * Measured center-to-peak or half crest-to-trough

11 SIFT Model - Maximum Amplitudes

12 PLACE SIFT 10:31P RIFT 11:18P ATFM 11:24P SIFT w/1-DART 12:33A Hilo2.6m1.6m1.9m4.1m Kawaihae0.8m1.6m1.3m1.2m Kahului2.4m1.0m2.5m2.9m Honolulu0.5m1.2m0.3m0.9m Haleiwa0.6m1.1m0.5m1.1m Nawiliwili0.6m1.4m1.1m0.9m Initial Forecast Model Guidance for Hawaii All values are crest-to-trough or double-amplitude in meters

13 PTWC Timeline Overview TIME (HST)EVENT 2/26 8:34PMMw 8.8 Earthquake Occurs in Chile 8:46PMChile-Peru put in Warning, Ecuador in Watch 8:49PMHawaii put in Advisory Status 2/27 12:45AMEntire Pacific put in Warning Status 12:46AMHawaii put in Warning Status 11:15AM 1:38PM 2:12PM 11:40PM

14 GAUGETIME (HST)Max Amplitude* DART 514045:31 AM0.4 m Hiva Oa7:45 AM3.6 m Nuku Hiva7:41 AM1.9 m Cabo San Lucas8:33 AM0.7 m Additional Sea Level Readings * Measured crest-to-trough or double-amplitude in meters

15 PLACE SIFT w/1-DART 1:38A SIFT w/1-DART 4:30A ATFM w/1-DART 5:10P SIFT w/2-DART 5:50A Hilo2.1m2.4m3.6m2.5m Kawaihae-0.7m2.4m0.6m Kahului2.2m-4.8m2.2m Honolulu0.7m0.4m1.2m0.5m Haleiwa-0.8m1.0m0.5m Nawiliwili-0.4m2.2m0.4m Further Forecast Model Guidance for Hawaii All values are crest-to-trough or double-amplitude in meters

16 PTWC Timeline Overview TIME (HST)EVENT 2/26 8:34PMMw 8.8 Earthquake Occurs in Chile 8:46PMChile-Peru put in Warning, Ecuador in Watch 8:49PMHawaii put in Advisory Status 2/27 12:45AMEntire Pacific put in Warning Status 12:46AMHawaii put in Warning Status 11:15AMTsunami Begins Impacting Hawaii

17 PLACERange of ForecastsObserved Hilo1.6 - 3.6 m1.7m Kawaihae0.7 - 2.4 m1.0m Kahului1.0 - 4.8 m2.0m Honolulu0.3 - 1.2 m0.5m Haleiwa0.5 – 1.1 m0.8m Nawiliwili0.4 – 1.4 m0.7m Tsunami Observations in Hawaii All values are crest-to-trough or double-amplitude in meters

18 PTWC Timeline Overview TIME (HST)EVENT 2/26 8:34PMMw 8.8 Earthquake Occurs in Chile 8:46PMChile-Peru put in Warning, Ecuador in Watch 8:49PMHawaii put in Advisory Status 2/27 12:45AMEntire Pacific put in Warning Status 12:46AMHawaii put in Warning Status 11:15AMTsunami Begins Impacting Hawaii 1:38PMHawaii Warning Cancelled 2:12PMPacific Cancelled except Japan / Russia

19 February 26, 2010 Mw 8.8 Chile Earthquake

20 SIFT Model - Maximum Amplitudes

21 PTWC Timeline Overview TIME (HST)EVENT 2/26 8:34PMMw 8.8 Earthquake Occurs in Chile 8:46PMChile-Peru put in Warning, Ecuador in Watch 8:49PMHawaii put in Advisory Status 2/27 12:45AMEntire Pacific put in Warning Status 12:46AMHawaii put in Warning Status 11:15AMTsunami Begins Impacting Hawaii 1:38PMHawaii Warning Cancelled 2:12PMPacific Cancelled except Japan / Russia 11:40PMWarning for Japan / Russia Cancelled

22 NTHMP Warning Coordination Subcommittee Meeting February 1, 2011 Thank You

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