pacific tsunami warning center 2/26/11 chile tsunami summary
DESCRIPTION
Pacific Tsunami Warning Center 2/26/11 Chile Tsunami Summary. Charles McCreery Director NOAA Pacific Tsunami Warning Center. PTWC Timeline Overview. February 26, 2010 Mw 8.8 Chile Earthquake. Aftershocks show Fault Dimensions. From USGS 238 aftershocks as of 3/18/10. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Pacific Tsunami Warning Center 2/26/11 Chile Tsunami Summary](https://reader030.vdocuments.us/reader030/viewer/2022033105/56814473550346895db107a3/html5/thumbnails/1.jpg)
NTHMP Warning Coordination Subcommittee Meeting
February 1, 2011
Charles McCreeryDirector
NOAA Pacific Tsunami Warning Center
Pacific Tsunami Warning Center 2/26/11 Chile Tsunami Summary
![Page 2: Pacific Tsunami Warning Center 2/26/11 Chile Tsunami Summary](https://reader030.vdocuments.us/reader030/viewer/2022033105/56814473550346895db107a3/html5/thumbnails/2.jpg)
PTWC Timeline Overview
TIME (HST) EVENT
2/26 8:34PM Mw 8.8 Earthquake Occurs in Chile
![Page 3: Pacific Tsunami Warning Center 2/26/11 Chile Tsunami Summary](https://reader030.vdocuments.us/reader030/viewer/2022033105/56814473550346895db107a3/html5/thumbnails/3.jpg)
February 26, 2010 Mw 8.8 Chile Earthquake
![Page 4: Pacific Tsunami Warning Center 2/26/11 Chile Tsunami Summary](https://reader030.vdocuments.us/reader030/viewer/2022033105/56814473550346895db107a3/html5/thumbnails/4.jpg)
Aftershocks show Fault Dimensions
From USGS
238 aftershocks as of 3/18/10
![Page 5: Pacific Tsunami Warning Center 2/26/11 Chile Tsunami Summary](https://reader030.vdocuments.us/reader030/viewer/2022033105/56814473550346895db107a3/html5/thumbnails/5.jpg)
PTWC Timeline Overview
TIME (HST) EVENT
2/26 8:34PM Mw 8.8 Earthquake Occurs in Chile
8:46PM Chile-Peru put in Warning, Ecuador in Watch
![Page 6: Pacific Tsunami Warning Center 2/26/11 Chile Tsunami Summary](https://reader030.vdocuments.us/reader030/viewer/2022033105/56814473550346895db107a3/html5/thumbnails/6.jpg)
February 26, 2010 Mw 8.8 Chile Earthquake
![Page 7: Pacific Tsunami Warning Center 2/26/11 Chile Tsunami Summary](https://reader030.vdocuments.us/reader030/viewer/2022033105/56814473550346895db107a3/html5/thumbnails/7.jpg)
PTWC Timeline Overview
TIME (HST) EVENT
2/26 8:34PM Mw 8.8 Earthquake Occurs in Chile
8:46PM Chile-Peru put in Warning, Ecuador in Watch
8:49PM Hawaii put in Advisory* Status
*Advisory under former definition was heads-up
![Page 8: Pacific Tsunami Warning Center 2/26/11 Chile Tsunami Summary](https://reader030.vdocuments.us/reader030/viewer/2022033105/56814473550346895db107a3/html5/thumbnails/8.jpg)
Historical Tsunamigenic Earthquakes
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YEAR PLACE MAGMAXIMUM HAWAII
RUNUP
1819 N. Chile 8.5 2 m = 6.5 ft
1837 S. Chile 8.5 6 m = 19.7 ft
1868 N. Chile 8.5 4.5 m = 14.7 ft
1877 N. Chile 8.3 4.8 m = 15.7 ft
1906 C. Chile 8.2 3.5 m = 11.5 ft
1922 N. Chile 8.5 2.1 m = 6.9 ft
1960 C. Chile 9.5 10.7 m = 35.1 ft
Historical Chile Tsunami Impacts in Hawaii
![Page 10: Pacific Tsunami Warning Center 2/26/11 Chile Tsunami Summary](https://reader030.vdocuments.us/reader030/viewer/2022033105/56814473550346895db107a3/html5/thumbnails/10.jpg)
GAUGE TIME (HST) Max Amplitude*
Talcahuano 8:53 PM 7.7 ft, then failed
Valparaiso 9:08 PM 4.2 ft
San Antonio 9:39 PM ETA failed
Corral 9:39 PM 2.9 ft
Juan Fernandez 9:49 PM failed
San Felix 10:15 PM 1.7 ft
Coquimbo 10:52 PM 4.3 ft
Iquique 11:06 PM 0.9 ft
Antofagasta 11:41 PM 1.6 ft
DART 32412 11:41 PM 0.8 ft
Arica 12:07 AM 3.1 ft
Initial Sea Level Readings
* Measured center-to-peak or half crest-to-trough
![Page 11: Pacific Tsunami Warning Center 2/26/11 Chile Tsunami Summary](https://reader030.vdocuments.us/reader030/viewer/2022033105/56814473550346895db107a3/html5/thumbnails/11.jpg)
SIFT Model - Maximum Amplitudes
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PLACESIFT
10:31PRIFT
11:18PATFM11:24P
SIFTw/1-DART
12:33A
Hilo 2.6m 1.6m 1.9m 4.1m
Kawaihae 0.8m 1.6m 1.3m 1.2m
Kahului 2.4m 1.0m 2.5m 2.9m
Honolulu 0.5m 1.2m 0.3m 0.9m
Haleiwa 0.6m 1.1m 0.5m 1.1m
Nawiliwili 0.6m 1.4m 1.1m 0.9m
Initial Forecast Model Guidance for Hawaii
All values are crest-to-trough or double-amplitude in meters
![Page 13: Pacific Tsunami Warning Center 2/26/11 Chile Tsunami Summary](https://reader030.vdocuments.us/reader030/viewer/2022033105/56814473550346895db107a3/html5/thumbnails/13.jpg)
PTWC Timeline Overview
TIME (HST) EVENT
2/26 8:34PM Mw 8.8 Earthquake Occurs in Chile
8:46PM Chile-Peru put in Warning, Ecuador in Watch
8:49PM Hawaii put in Advisory Status
2/27 12:45AM Entire Pacific put in Warning Status
12:46AM Hawaii put in Warning Status
11:15AM
1:38PM
2:12PM
11:40PM
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GAUGE TIME (HST) Max Amplitude*
DART 51404 5:31 AM 0.4 m
Hiva Oa 7:45 AM 3.6 m
Nuku Hiva 7:41 AM 1.9 m
Cabo San Lucas 8:33 AM 0.7 m
Additional Sea Level Readings
* Measured crest-to-trough or double-amplitude in meters
![Page 15: Pacific Tsunami Warning Center 2/26/11 Chile Tsunami Summary](https://reader030.vdocuments.us/reader030/viewer/2022033105/56814473550346895db107a3/html5/thumbnails/15.jpg)
PLACESIFT
w/1-DART1:38A
SIFTw/1-DART
4:30A
ATFMw/1-DART
5:10P
SIFTw/2-DART
5:50A
Hilo 2.1m 2.4m 3.6m 2.5m
Kawaihae - 0.7m 2.4m 0.6m
Kahului 2.2m - 4.8m 2.2m
Honolulu 0.7m 0.4m 1.2m 0.5m
Haleiwa - 0.8m 1.0m 0.5m
Nawiliwili - 0.4m 2.2m 0.4m
Further Forecast Model Guidance for Hawaii
All values are crest-to-trough or double-amplitude in meters
![Page 16: Pacific Tsunami Warning Center 2/26/11 Chile Tsunami Summary](https://reader030.vdocuments.us/reader030/viewer/2022033105/56814473550346895db107a3/html5/thumbnails/16.jpg)
PTWC Timeline Overview
TIME (HST) EVENT
2/26 8:34PM Mw 8.8 Earthquake Occurs in Chile
8:46PM Chile-Peru put in Warning, Ecuador in Watch
8:49PM Hawaii put in Advisory Status
2/27 12:45AM Entire Pacific put in Warning Status
12:46AM Hawaii put in Warning Status
11:15AM Tsunami Begins Impacting Hawaii
![Page 17: Pacific Tsunami Warning Center 2/26/11 Chile Tsunami Summary](https://reader030.vdocuments.us/reader030/viewer/2022033105/56814473550346895db107a3/html5/thumbnails/17.jpg)
PLACE Range of Forecasts Observed
Hilo 1.6 - 3.6 m 1.7m
Kawaihae 0.7 - 2.4 m 1.0m
Kahului 1.0 - 4.8 m 2.0m
Honolulu 0.3 - 1.2 m 0.5m
Haleiwa 0.5 – 1.1 m 0.8m
Nawiliwili 0.4 – 1.4 m 0.7m
Tsunami Observations in Hawaii
All values are crest-to-trough or double-amplitude in meters
![Page 18: Pacific Tsunami Warning Center 2/26/11 Chile Tsunami Summary](https://reader030.vdocuments.us/reader030/viewer/2022033105/56814473550346895db107a3/html5/thumbnails/18.jpg)
PTWC Timeline Overview
TIME (HST) EVENT
2/26 8:34PM Mw 8.8 Earthquake Occurs in Chile
8:46PM Chile-Peru put in Warning, Ecuador in Watch
8:49PM Hawaii put in Advisory Status
2/27 12:45AM Entire Pacific put in Warning Status
12:46AM Hawaii put in Warning Status
11:15AM Tsunami Begins Impacting Hawaii
1:38PM Hawaii Warning Cancelled
2:12PM Pacific Cancelled except Japan / Russia
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February 26, 2010 Mw 8.8 Chile Earthquake
![Page 20: Pacific Tsunami Warning Center 2/26/11 Chile Tsunami Summary](https://reader030.vdocuments.us/reader030/viewer/2022033105/56814473550346895db107a3/html5/thumbnails/20.jpg)
SIFT Model - Maximum Amplitudes
![Page 21: Pacific Tsunami Warning Center 2/26/11 Chile Tsunami Summary](https://reader030.vdocuments.us/reader030/viewer/2022033105/56814473550346895db107a3/html5/thumbnails/21.jpg)
PTWC Timeline Overview
TIME (HST) EVENT
2/26 8:34PM Mw 8.8 Earthquake Occurs in Chile
8:46PM Chile-Peru put in Warning, Ecuador in Watch
8:49PM Hawaii put in Advisory Status
2/27 12:45AM Entire Pacific put in Warning Status
12:46AM Hawaii put in Warning Status
11:15AM Tsunami Begins Impacting Hawaii
1:38PM Hawaii Warning Cancelled
2:12PM Pacific Cancelled except Japan / Russia
11:40PM Warning for Japan / Russia Cancelled
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NTHMP Warning Coordination Subcommittee Meeting
February 1, 2011
Thank You