8.8 magnitude earthquake rocks Chile, tsunami advisories for Chile, Peru and Ecuador

By Baron Sekiya | Hawaii 24/7

The USGS reports an 8.8 magnitude earthquake struck offshore Chile at The Pacific Tsunami Warning Center has reported that some waves have been recorded along coast of South America. Hawaii is under a tsunami advisory and they are analyzing the data regarding any threat to Hawaii. If a tsunami was generated it would take approximately 14 hours to reach the Hawaii which would be 10:30 a.m. HST.

We will update this website with additional information as it is released.

MEDIA RELEASE (from West Coast Alaska Tsunami Warning Center)

To: U.S. West Coast, Alaska, and British Columbia coastal regions

From: NOAA/NWS/West Coast and Alaska Tsunami Warning Center

Subject: Tsunami Information Statement #1 issued 02/26/2010 at 10:49PM PST

A strong earthquake has occurred, but a tsunami IS NOT expected along the California, Oregon, Washington, British Columbia, or Alaska coast. NO tsunami warning, watch or advisory is in effect for these areas.

A tsunami may have been generated that could potentially impact the U.S. west coast, British Columbia, and Alaska. The West Coast/Alaska Tsunami Warning Center is investigating the event to determine the level of danger. More information will be issued as it becomes available.

At 10:34 PM Pacific Standard Time on February 26, an earthquake with preliminary magnitude 8.5 occurred near the coast of central Chile . (Refer to the United States Geological Survey for official earthquake parameters.)

USGS PRELIMINARY EARTHQUAKE REPORT

Region:                           OFFSHORE MAULE, CHILE
Geographic coordinates:           35.826S,  72.668W
Magnitude:                        8.3 Mw
Depth:                            59 km
Universal Time (UTC):             27 Feb 2010  06:34:17
Time near the Epicenter:          27 Feb 2010  03:34:17
Local standard time in your area: 26 Feb 2010  20:34:17

Location with respect to nearby cities:
 99 km (61 miles) WSW (246 degrees) of Talca, Chile
117 km (73 miles) NNE (17 degrees) of Concepcion, Chile
317 km (197 miles) SW (215 degrees) of SANTIAGO, Chile

TSUNAMI BULLETIN NUMBER 006

PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS

ISSUED AT 1147Z 27 FEB 2010

THIS BULLETIN APPLIES TO AREAS WITHIN AND BORDERING THE PACIFIC OCEAN AND ADJACENT SEAS…EXCEPT ALASKA…BRITISH COLUMBIA… WASHINGTON…OREGON AND CALIFORNIA.

… A WIDESPREAD TSUNAMI WARNING IS IN EFFECT …

A TSUNAMI WARNING IS IN EFFECT FOR

CHILE / PERU / ECUADOR / COLOMBIA / ANTARCTICA / PANAMA / COSTA RICA / NICARAGUA / PITCAIRN / HONDURAS / EL SALVADOR / GUATEMALA / FR. POLYNESIA / MEXICO / COOK ISLANDS / KIRIBATI / KERMADEC IS / NIUE / NEW ZEALAND / TONGA / AMERICAN SAMOA / SAMOA / JARVIS IS. / WALLIS-FUTUNA / TOKELAU / FIJI / AUSTRALIA / HAWAII / PALMYRA IS. / TUVALU / VANUATU / HOWLAND-BAKER / NEW CALEDONIA / JOHNSTON IS. / SOLOMON IS. / NAURU / MARSHALL IS. / MIDWAY IS. / KOSRAE / PAPUA NEW GUINEA / POHNPEI / WAKE IS. / CHUUK / RUSSIA / MARCUS IS. / INDONESIA / N. MARIANAS / GUAM / YAP / BELAU / JAPAN / PHILIPPINES / CHINESE TAIPEI

THIS BULLETIN IS ISSUED AS ADVICE TO GOVERNMENT AGENCIES. ONLY NATIONAL AND LOCAL GOVERNMENT AGENCIES HAVE THE AUTHORITY TO MAKE DECISIONS REGARDING THE OFFICIAL STATE OF ALERT IN THEIR AREA AND ANY ACTIONS TO BE TAKEN IN RESPONSE.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS


ORIGIN TIME -  0634Z 27 FEB 2010
COORDINATES -  36.1 SOUTH   72.6 WEST
DEPTH       -   55 KM
LOCATION    -  NEAR COAST OF CENTRAL CHILE
MAGNITUDE   -  8.8

MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY


GAUGE LOCATION        LAT   LON    TIME        AMPL         PER
-------------------  ----- ------  -----  ---------------  -----
ANCUD CL             41.9S  73.8W  0838Z   0.62M /  2.0FT  84MIN
CALLAO LA-PUNTA PE   12.1S  77.2W  1029Z   0.36M /  1.2FT  30MIN
ARICA CL             18.5S  70.3W  1008Z   0.94M /  3.1FT  42MIN
IQUIQUE CL           20.2S  70.1W  0907Z   0.28M /  0.9FT  68MIN
ANTOFAGASTA CL       23.2S  70.4W  0941Z   0.49M /  1.6FT  52MIN
DART LIMA 32412      18.0S  86.4W  0941Z   0.24M /  0.8FT  36MIN
CALDERA CL           27.1S  70.8W  0843Z   0.45M /  1.5FT  20MIN
TALCAHUANO CL        36.7S  73.4W  0653Z   2.34M /  7.7FT  88MIN
COQUIMBO CL          30.0S  71.3W  0852Z   1.32M /  4.3FT  30MIN
CORRAL CL            39.9S  73.4W  0739Z   0.90M /  2.9FT  16MIN
SAN FELIX CL         26.3S  80.1W  0815Z   0.53M /  1.7FT  08MIN
VALPARAISO CL        33.0S  71.6W  0708Z   1.29M /  4.2FT  20MIN

LAT  - LATITUDE (N-NORTH, S-SOUTH)
LON  - LONGITUDE (E-EAST, W-WEST)
TIME - TIME OF THE MEASUREMENT (Z IS UTC IS GREENWICH TIME)
AMPL - TSUNAMI AMPLITUDE MEASURED RELATIVE TO NORMAL SEA LEVEL.
       IT IS ...NOT... CREST-TO-TROUGH WAVE HEIGHT.
       VALUES ARE GIVEN IN BOTH METERS(M) AND FEET(FT).
PER  - PERIOD OF TIME IN MINUTES(MIN) FROM ONE WAVE TO THE NEXT.

EVALUATION

SEA LEVEL READINGS CONFIRM THAT A TSUNAMI HAS BEEN GENERATED WHICH COULD CAUSE WIDESPREAD DAMAGE. AUTHORITIES SHOULD TAKE APPROPRIATE ACTION IN RESPONSE TO THIS THREAT. THIS CENTER WILL CONTINUE TO MONITOR SEA LEVEL DATA TO DETERMINE THE EXTENT AND SEVERITY OF THE THREAT.

A TSUNAMI IS A SERIES OF WAVES AND THE FIRST WAVE MAY NOT BE THE LARGEST. TSUNAMI WAVE HEIGHTS CANNOT BE PREDICTED AND CAN VARY SIGNIFICANTLY ALONG A COAST DUE TO LOCAL EFFECTS. THE TIME FROM ONE TSUNAMI WAVE TO THE NEXT CAN BE FIVE MINUTES TO AN HOUR, AND THE THREAT CAN CONTINUE FOR MANY HOURS AS MULTIPLE WAVES ARRIVE.

FOR ALL AREAS – WHEN NO MAJOR WAVES ARE OBSERVED FOR TWO HOURS AFTER THE ESTIMATED TIME OF ARRIVAL OR DAMAGING WAVES HAVE NOT OCCURRED FOR AT LEAST TWO HOURS THEN LOCAL AUTHORITIES CAN ASSUME THE THREAT IS PASSED. DANGER TO BOATS AND COASTAL STRUCTURES CAN CONTINUE FOR SEVERAL HOURS DUE TO RAPID CURRENTS. AS LOCAL CONDITIONS CAN CAUSE A WIDE VARIATION IN TSUNAMI WAVE ACTION THE ALL CLEAR DETERMINATION MUST BE MADE BY LOCAL AUTHORITIES.

BULLETINS WILL BE ISSUED HOURLY OR SOONER IF CONDITIONS WARRANT. THE TSUNAMI WARNING WILL REMAIN IN EFFECT UNTIL FURTHER NOTICE.

THE WEST COAST/ALASKA TSUNAMI WARNING CENTER WILL ISSUE PRODUCTS FOR ALASKA…BRITISH COLUMBIA…WASHINGTON…OREGON…CALIFORNIA.