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 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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