National Tsunami Warning Center, NOAA/NWS

TSUNAMI of 06 July, 2011 (Kermadec Islands Region)

A major earthquake with a moment magnitude of 7.6 (USGS magnitude) occurred at 19:03:16 UTC 06 July 2011 (day 187) and was located 101 miles/163 km E of Raoul Island, Kermadec Islands (29.312S, 176.204W, 12.4 mi/20 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, 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

energy map

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)

Raoul Is., Boat Cove, NZ

1923 (187)

1912 (187)

99

1924 (187)

-

down

1

187, 188

Raoul Is., Fishing Rock, NZ

-

1913 (187)

120

1918 (187)

-

down

1

187, 188

Lottin Point, NZ

2029 (187)

?

22

2208 (187)

-

?

1

187, 188

Suva Viti Levu, Fiji

-

2127 (187)

4

2221 (187)

-

?

1

187, 188

Korotiti Bay, NZ

-

2142 (187)

24

2221 (187)

-

up

1

187, 188

Rarotonga, Cook Island

-

2131 (187)

17

2154 (187)

-

up

1

187, 188

Port Vila, Vanuatu

2216 (187)

2241 (187)

7

2308 (187)

-

?

1

187, 188

Papeete, French Polynesia

2250 (187)

2253 (187)

6

2309 (187)

-

?

1

187, 188

Penrhyn, Cook Islands

2239 (187)

?

2

0254 (188)

-

?

1

187, 188

Huahine, French Polynesia

-

?

6

2330 (187)

-

?

2

187, 188

Kawajalin, Marshall Islands

0102 (188)

?

2

0217 (188)

-

?

1

187, 188

Lagaspi, Philippines

0626 (188)

?

3

0844 (188)

-

?

1

187, 188

Manilla, Philippines

0908 (188)

0958 (188)

5

1006 (188)

-

?

3

187, 188

Nawiliwili, HI

0207 (188)

0207 (188)

9

0441 (188)

6

up

1

188, 189

Honolulu, HI

0208 (188)

?

6

0333 (188)

3

?

1

188, 189

Hilo, HI

0216 (188)

?

5

0406 (188)

4

?

1

188, 189

Arena Cove, CA

0644 (188)

?

6

0947 (188)

5

?

1

188, 189

Corral, Chile

0715 (188)

0715 (188)

7

1025 (188)

-

up

1

188, 189

Coquimbo, Chile

0802 (188)

?

14

1140 (188)

-

?

1

188, 189

Santa Cruz, Galapagos, Ecuador

?

?

15

1100 (188)

-

?

1

188, 189

Baltra. Ecuador

0837 (188)

?

6

1111 (188)

-

?

1

188, 189

Atico, Peru

0859 (188)

?

5

1211 (188)

-

?

1

188, 189

Callao La Punta, Peru

0902 (188)

?

15

1355 (188)

-

?

2

188, 189

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