National Tsunami Warning Center, NOAA/NWS

Offshore Maule, Chile Tsunami of 27 February 2010

A great earthquake with a moment magnitude of 8.8 (USGS magnitude) occurred at 06:34:14 UTC 27 February 2010 (day 058) and was located 60 miles/100 km NNW of Chillan, Chile (35.846S, 72.719W, 21.75mi/35.0km depth--USGS location).

This earthquake produced a tsunami that was recorded at tide gages monitored at the Tsunami Warning Centers. 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 arrival computed at the National Tsunami Warning Center based on the origin time and location (Note: The computed arrival times are those determined during the event based on a point source (the epicenter) which produces significant error in the near field due to the extended nature of the rupture). The Sample Interval column shows the time between samples.

For additional information about these tsunami events see the Pacific Tsunami Warning Center's homepage .


Travel Time Map (click to enlarge)	Maximum Amplitude Graph (click to enlarge)

Tide gage	Peak amplitude (above sea level in cm)	Observed Initial Arrival time (UTC)	Computed Initial Arrival time (UTC)	Initial motion	Sample Interval (min)	Data File (Julian Day Starts at 0000 UTC)
Talcahuano, Chile	181 before gauge stopped transmitting at 08:30Z JD 58		0726		2	058
Juan Fernandez, Chile	12 before guage stopped transmitting at 0721Z JD 058	0642	0739	down	2	058
Valparaiso, Chile	261	0654	0731	rise	2	058, 059
San Felix, Chile	79	0810	0834	down	2	058, 059
Santa Cruz Galapagos, Ecuador	105	1243	none	up	1	058, 059
San Pedro, Chile	40	0942	0926	up	2	058, 059
Iquiqui, Chile	68	0848	0901	up	2	058, 059
Corral, Chile	144	0732	0756	up	2	058, 059
Coquimbo, Chile	164	0723	0750	up	2	058, 059
Callao La Punta, Peru	69	1034	1034	up	6	058, 059
Caldera, Chile	90	0747	0810	up	2	058, 059
Baltra, Ecuador	41	1252	1311	up	1	058, 059
Arica, Chile	118	0914	0922	up	2	058, 059
Antofagasta, Chile	47	0815	0839	up	2	058, 059
Ancud, Chile	59	0754	none	up	2	058, 059
Acapulco, Mexico	65.6	1547	none	up	1	058, 059, 060
Cabo San Lucas, Mexico	35.9	1727	1743	up	1	058, 059, 060
Manzanillo, Mexico	60	1631	1652	up	1	058, 059, 060
Quepo, Costa Rica	?	1417	none	up	1	058, 059, 060
Alameda, California	12	2144	none	up	1	058, 059, 060
Arena Cove, California	41	2048	2104	up	1	058, 059, 060
Crescent City, California	69	2140	2146	up	1	058, 059, 060, 061
Eureka (N. Spit), California	23	2136	2133	up	1	058, 059, 060, 061
La Jolla, California	112	2002	2002	up	1	058, 059, 060, 061
Los Angeles, California	42	2015	2015	up	1	058, 059, 060, 061
Monterey, California	50	2031	2043	up	1	058, 059, 060, 061
Point Reyes, California	46	2059	2059	up	1	058, 059, 060, 061
San Diego, California	39	2004	none	up	1	058, 059, 060, 061
San Francisco, California	32	2120	2126	up	1	058, 059, 060, 061
Santa Barbara, California	91	2030	2031	up	1	058, 059, 060, 061
Santa Monica, California	64	2025	2025	up	1	058, 059, 060, 061
Astoria, Oregon	5	?	2311	?	1	058, 059, 060, 061
Charleston, Oregon	22	2205	2202	up	1	058, 059, 060, 061
Port Orford, Oregon	32	2137	2150	up	1	058, 059, 060, 061
South Beach, Oregon	16	2230	2229	up	1	058, 059, 060, 061
Westport, Washington	15	2300	2257	up	1	058, 059, 060, 061
Toke Point, Washington	9	2312	none	up	1	058, 059, 060, 061
Port Townsend, Washington	10	0031 (JD 059)	none	up	1	059, 060, 061
Port Angeles, Washington	19	2350	2344	up	1	058, 059, 060, 061
Neah Bay, Washington	23	2312	2307	up	1	058, 059, 060, 061
La Push, Washington	22	2258	2256	up	1	058, 059, 060, 061
Langara Point, BC	17	2352	2351	up	1	058, 059, 060, 061
Tofino, BC	17	2317	2315	up	1	058, 059, 060, 061
Winter Harbour, BC	22	2316	2316	up	1	058, 059, 060, 061
Adak, Alaska	38	0142 (JD 059)	0142	up	1	059, 060, 061
Akutan, Alaska	22	0120	0125	up	15 sec	059, 060, 061
Alitak, Alaska	18	0150	0208	up	1	059, 060, 061
Atka, Alaska	42	0130	0122	up	1	059, 060, 061
Cordova, Alaska	13	0220	0206	?	1	059, 060, 061
Craig, Alaska	23	0045	0100	up	1	058, 059, 060, 061
Dutch Harbor, Alaska	19	?	0138	up	1	059, 060, 061
Elfin cove, Alaska	13	0035	0038	up	1	059, 060, 061
Juneau, Alaska	11	?	0135	up	1	059, 060, 061
Ketchikan, Alaska	6	?	0049	up	1	059, 060, 061
King Cove, Alaska	65	0140	0134	up	1	059, 060, 061
Kodiak, Alaska	38	0135	0128	up	1	059, 060, 061
Old Harbor, Alaska	51	0125	0138	up	1	059, 060, 061
Port Alexander, Alaska	18	0020	0015	down	1	059, 060, 061
Sand Point, Alaska	38	0130	0129	up	1	059, 060, 061
Seldovia, Alaska	12	?	?	?	1	059, 060, 061
Seward, Alaska	46	0140	0139	up	1	059, 060, 061
Shemya, Alaska	39	?	0221	?	15 sec	059, 060, 061
Sitka, Alaska	21	0030	0029	up	1	059, 060, 061
St. Paul Island, Alaska	18	0257	none	up	1	059, 060, 061
Valdez, Alaska	12	0210	0157	up	1	059, 060, 061
Yakutat, Alaska	36	0118	0119	up	1	059, 060, 061
Chatam Island, NZ	101	1824	none	up	15 sec	058, 059, 060, 061
North Cape, NZ	23	2008	none	up	15 sec	058, 059, 060, 061
Currimao, Philippines	16	0819	none	down	1	059, 060, 061
Gisborn, NZ	117	1919	none	up	15 sec	058, 059, 060, 061
Johnston Island	21	2239	none	up	1	058, 059, 060, 061
East Cape, NZ	24	1856	none	up	1	058, 059, 060, 061
Midway Island	29	0026	0020	up	1	059, 060, 061
Owenga, Chatham, NZ	98	1816	1842	up	1	058, 059, 060, 061
Pago Pago, Am. Samoa	71	1935	1954	up	1	058, 059, 060, 061
Papeete, Fr. Polynesia	22	1733	1747	up	1	058, 059, 060, 061
Penrhyn, Cook Is.	3	1930	1921	up	1	058, 059, 060, 061
Raoul Island, NZ	50	1850	none	up	15 sec	058, 059, 060, 061
Rikitea, Fr. Polynesia	32	1536	1541	up	1	058, 059, 060, 061
Saipan	15	0404	none	up	1	059, 060, 061
Waitangi, Chatham Is.	78	1821	none	up	2	058, 059, 060, 061
Wake Island	33	0122	0118	up	1	059, 060, 061
Apia, West Samoa	42	1948	2014	up	1	058, 059, 060, 061
Rarotonga, Cook Is.	33	1816	none	?	1	058, 059, 060, 061
Manus, PNG	37	0245	0214	up	1	058, 059, 060, 061
Honolulu, HI	28	2147	2147	up	1	058, 059, 060, 061
Kahului, HI	86	2141	2143	up	1	058, 059, 060, 061
Kaumialapa, HI	29	2135	none	up	1	058, 059, 060, 061
Kawaihae, HI	51	2129	2135	up	1	058, 059, 060, 061
Nawiliwili, HI	36	2154	2154	up	1	058, 059, 060, 061
Hanasaki, Japan	95	0443	none	up	1	059, 060, 061
Naha, Japan	30	0644	0627	up	1	059, 060, 061
Ofunato, Japan	40	0508	0508	up	1	059, 060, 061
Omaezaki, Japan	60	0558	0533	up	1	059, 060, 061
Tosashimizu, Japan	68	0638	none	up	1	059, 060, 061

National Tsunami Warning Center, NOAA/NWS

Offshore Maule, Chile Tsunami of 27 February 2010

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