Tsunami of 28 October, 2012

National Tsunami Warning Center, NOAA/NWS

TSUNAMI of 28 October, 2012 (Haida Gwaii, Queen Charlotte Islands, B.C., Canada)

A major earthquake with a moment magnitude of 7.7 (USGS magnitude) occurred at 03:04:10 UTC 28 October, 2012 (day 302) and was located 126 mi/201 km SSW of Prince Rupert, British Columbia, Canada (52.769N, 131.927W, 10.9 mi/17.4 km depth--USGS location).

This earthquake produced a tsunami that was recorded at tide gages monitored by the National Tsunami Warning Center (NTWC). Many observatories provide data to the centers; such as the NOAA National Ocean Service, the U. of Hawaii Sea Level Center, the Chilean Navy, the Japan Meteorological Agency and the National Tidal Facility in Australia among others. Click on the site name to see a graph of the tsunami, when available. Listed wave heights are maximum amplitude in cm (above sea level). Observed Arrival time is the actual tsunami arrival time in UTC on gages where it could be determined. The Computed Arrival time is the estimated time of wave arrival computed at the NTWC based on the earthquake origin time and location. The Sample Interval column shows the time between data samples.

For additional information about this tsunami event see the Pacific Tsunami Warning Center's homepage.

 

Travel Time Map
(click to enlarge)

Maximum Amplitude Graph
(click to enlarge)

 

Tide gage/
Measurement Location

Estimated Arrival Time
[UTC (J.Day)]

Observed Arrival time
[UTC (J.Day)]

Peak amplitude
(above sea level in cm)

Time of Peak Amplitude Measurement
[UTC (J.Day)]

Model Forecast Amplitude
(above sea level in cm)

Initial motion

Sample Interval
(min)

Data File
(Julian Day Starts
at 0000 UTC)

Alameda, California

-

0712 (302)

11

0825 (302)

4

up

1

302, 303

Arena Cove, California

0604 (302)

0601 (302)

35

0637 (302)

28

up

1

302, 303

Crescent City, California

0543 (302)

0544 (302)

44

0914 (302)

24

up

1

302, 303

La Jolla, California

0741 (302)

0741 (302)

5

0748 (302)

4

up

1

302, 303

Los Angeles, California

0729 (302)

0728 (302)

8

1002 (302)

7

up

1

302, 303

Monterey Harbor, California

0632 (302)

0634 (302)

14

0929 (302)

11

up

1

302, 303

North Spit, California

0546 (302)

0546 (302)

12

0649 (302)

15

up

1

302, 303

Point Reyes, California

0632 (302)

0619 (302)

24

0905 (302)

9

up

1

302, 303

Port San Luis, California

0657 (302)

0658 (302)

27

0810 (302)

11

up

1

302, 303

Richmond, California

-

0708 (302)

9

0822 (302)

-

up

1

302, 303

San Diego, California

-

0904 (302)

5

0920 (302)

7

up

1

302, 303

San Francisco, California

0652 (302)

0652 (302)

14

0802 (302)

6

up

1

302, 303

Santa Monica, California

0728 (302)

0723 (302)

8

0933 (302)

5

up

1

302, 303

Astoria, Oregon

0554 (302)

0541 (302)

3

0549 (302)

6

up

1

302, 303

Charleston, Oregon

0525 (302)

0523 (302)

13

0732(302)

12

up

1

302, 303

Garibaldi, Oregon

0531 (302)

0512 (302)

5

0519 (302)

-

up

1

302, 303

Port Orford, Oregon

0526 (302)

0521 (302)

23

0841 (302)

18

up

1

302, 303

South Beach, Oregon

0527 (302)

0528 (302)

7

0531 (302)

12

up

1

302, 303

La Push, Washington

0517 (302)

0452 (302)

12

0757 (302)

-

up

1

302, 303

Neah Bay, Washington

0515 (302)

0503 (302)

11

0638 (302)

8

up

1

302, 303

Port Angeles, Washington

0552 (302)

0550 (302)

12

0640 (302)

5

?

1

302, 303

Toke Point, Washington

-

0525 (302)

4

0533 (302)

up

1

302, 303

Westport, Washington

0533 (302)

0513 (302)

8

0521 (302)

21

up

1

302, 303

Langara Point, B.C., Canada

0338 (302)

0340 (302)

25

0504 (302)

10

up

1

302, 303

Neptune05, B.C., Canada

-

0443 (302)

8

0453 (302)

-

up

1

302, 303

Winter Harbour, B.C., Canada

0417 (302)

0401 (302)

22.2

0550 (302)

-

up

1

302, 303

*Bamfield, B.C., Canada

-

-

6.5

-

-

up

*Bella Bella, B.C., Canada

-

-

10.6

-

-

down

*Hartley Bay, B.C., Canada

-

-

1.9

-

-

?

*Henslung Cove, B.C., Canada

-

-

21.1

-

-

down

*Kitimat, B.C., Canada

-

-

3.7

-

-

down

*Port Alberni, B.C., Canada

-

-

22.3

-

-

down

*Port Hardy, B.C., Canada

-

-

8.7

-

-

up

*Prince Rupert, B.C., Canada

-

-

8.6

-

-

-

*Queen Charlotte City, B.C., Canada

-

-

5.5

-

-

up

*Tofino, B.C., Canada

-

-

11.6

-

-

down

Atka, Alaska

0705 (302)

0725 (302)

11

0831 (302)

-

up

1

302, 303

Chignik, Alaska

0652 (302)

0654 (302)

18

1026 (302)

-

up

15 sec

302, 303

Craig, Alaska

0450 (302)

0426 (302)

8

0450 (302)

-

up

15 sec

302, 303

Dutch Harbor, Alaska

0702 (302)

0733 (302)

7

0939 (302)

5

1

302, 303

Elfin Cove, Alaska

0430 (302)

0434 (302)

7

0448 (302)

7

up

1

302, 303

Ketchikan, Alaska

0436 (302)

0440 (302)

5

0801 (302)

-

up

1

302, 303

Old Harbor, Kodiak, Alaska

0620 (302)

0601 (302)

14

0617 (302)

-

up

15 sec

302, 303

Port Alexander, Alaska

0404 (302)

0410 (302)

11

0602 (302)

-

up

1

302, 303

Sand Point, Alaska

0642 (302)

0648 (302)

6

0814 (302)

9

up

15 sec

302, 303

Sitka, Alaska

0419 (302)

0426 (302)

10

0558 (302)

16

up

15 sec

302, 303

Valdez, Alaska

0609 (302)

0618 (302)

3

0639 (302)

5

up

1

302, 303

Yakutat, Alaska

0517 (302)

0522 (302)

15

1135 (302)

20

up

1

302, 303

Barbers Point, Hawaii

-

0834 (302)

9

0925 (302)

-

up

1

302, 303

French Frigate Shoals, Hawaii

0844 (302)

0855 ? (302)

14

0956 (302)

-

?

1

302, 303

Haleiwa, Hawaii

0830 (302)

43

0857 (302)

-

up

10 sec

302, 303

Hanalei, Hawaii

0829 (302)

19

0854 (302)

-

up

10 sec

302, 303

Hilo, Hawaii

0850 (302)

0837 (302)

29

1011 (302)

-

up

1

302, 303

Honokohua, Hawaii

-

0845 (302)

9

0923 (302)

-

up

10 sec

302, 303

Honolulu, Hawaii

0842 (302)

0844 (302)

20

0909 (302)

-

up

1

302, 303

Kahului, Hawaii

0841 (302)

0837 (302)

79

0907 (302)

-

up

1

302, 303

Kaumalapau, Hawaii

-

0852 (302)

18

0958 (302)

-

up

1

302, 303

Kawaihae, Hawaii

0844 (302)

0842 (302)

56

0934 (302)

-

up

1

302, 303

Lahaina, Hawaii

-

0846 (302)

28

1004 (302)

-

up

10 sec

302, 303

Makapuu, Hawaii

-

0830 (302)

27

0935 (302)

-

up

10 sec

302, 303

Mokuloe, Hawaii

-

0834 (302)

9

0854 (302)

-

up

1

302, 303

Aburatsu, Japan

-

1504 (302)

10

2043 (302)

-

1

302, 303

Chichijima, Japan

-

1426 (302)

10

1804 (302)

-

?

1

302, 303

Fukaura, Japan

-

6

1503 (302)

-

?

1

302, 303

Mera, Japan

-

1333 (302)

11

1419 (302)

-

?

1

302, 303

Rarotonga, Cook Is. (NZ)

-

1429 (302)

15

1537 (302)

-

up

1

302, 303

Christmas Is., Kiribati

1055 (302)

1057 (302)

3

1117 (302)

-

up

1

302, 303

Auckland. NZ

1756 (302)

5

1738 (302)

-

?

1

302, 303

Chatham Island, NZ

-

1838 (302)

14

2138 (302)

-

up

1

302, 303

Gisborn, NZ

1717 (302)

?

10

2245 (302)

-

?

1

302, 303

Lottin Point, NZ

1649 (302)

1730 (302)

5

2032 (302)

-

up

1

302, 303

Hienghene, New Caledonia

-

?

4

2137 (302)

-

?

1

302, 303

Huahine, Fr. Polynesia

-

1324 (302)

7

1624 (302)

-

up

2

302, 303

Midway Island, USA

0900 (302)

0914 (302)

9

0927 (302)

23

up

1

302, 303

Nuku Hiva, Fr. Polynesia

-

1220 (302)

16

1245 (302)

-

up

1

302, 303

Ouinne, New Caldonia

-

1842 (302)

8

0232 (303)

-

1

302, 303

Pago Pago, Amer. Samoa

1343 (302)

1344 (302)

8

1455 (302)

-

?

1

302, 303

Papeete, Fr. Polynesia

1328 (302)

1329 (302)

4

1400 (302)

-

up

1

302, 303

Rangiroa Atoll, Fr. Polynesia

-

1324 (302)

6

1426 (302)

-

down

1

302, 303

Raoul Is., Boat Cove, NZ

1540 (302)

1720 (302)

6

1908 (302)

-

?

1

302, 303

Raoul Is. Fishing Rock, NZ

-

1722 (302)

7

2011 (302)

-

?

1

302, 303

Rikitea, Fr. Polynesia

1425 (302)

?

10

1554 (302)

-

?

1

302, 303

Saipan, USA

1308 (302)

1350 (302)

2

1607 (302)

-

?

3

302, 303

Wake Is., USA

1108 (302)

1128 (302)

4

1151 (302)

-

1

302, 303

Apia, Western Samoa

1344 (302)

1347 (302)

6

1513 (302)

-

up

1

302, 303

Funafuti, Tuvalu

1323 (302)

1336 (302)

2

1352 (302)

-

?

1

302, 303

Honiara, Solomon Islands

1544 (302)

?

3

1736 (302)

-

?

1

302, 303

Lata Wharf, Solomon Islands

-

1510 (302)

4

1541 (302)

-

?

1

302, 303

Manus, Papua New Guinea

1512 (302)

?

5

1750 (302)

-

?

1

302, 303

Point Murat, Ausralia

-

1349 (302)

5

2000 (302)

-

?

1

302, 303

Port Villa, Vanuatu

1555 (302)

1619

6

1926 (302)

-

1

302, 303

Tarekukure, Solomon Islands

-

1601 (302)

4

1656 (302)

-

up

1

302, 303


* Compliments of Canadian Hydrographic Services

Return To:
NTWC Home Page