Magnitude 7.3 - VANUATU REGION - small tsunami

[Shiloh]

Source: http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/usc0000usf.php

Magnitude 7.3 - VANUATU REGION
2010 December 25 13:16:37 UTC

Earthquake Details

* This event has been reviewed by a seismologist.

Magnitude 7.3
Date-Time

* Saturday, December 25, 2010 at 13:16:37 UTC
* Sunday, December 26, 2010 at 12:16:37 AM at epicenter
* Time of Earthquake in other Time Zones

Location 19.775?S, 167.895?E
Depth 12.3 km (7.6 miles)
Region VANUATU REGION
Distances 145 km (90 miles) W of Isangel, Tanna, Vanuatu
195 km (120 miles) N of Tadine, Loyalty Islands, New Caledonia
230 km (145 miles) S of PORT-VILA, Efate, Vanuatu
1740 km (1080 miles) ENE of BRISBANE, Queensland, Australia
Location Uncertainty horizontal +/- 7 km (4.3 miles); depth +/- 7.8 km (4.8 miles)
Parameters NST=173, Nph=173, Dmin=>999 km, Rmss=1.52 sec, Gp= 43?,
M-type=teleseismic moment magnitude (Mw), Version=7
Source

* USGS NEIC (WDCS-D)

Event ID usc0000usf

 

[Shiloh]

Re: Magnitude 7.3 - VANUATU REGION

Re: Magnitude 7.3 - VANUATU REGION

Source: http://news.blogs.cnn.com/2010/12/2...d-after-strong-quake-in-pacific-ocean/?hpt=T2

Tsunami warning issued after strong quake in Pacific Ocean
December 25th, 2010
09:13 AM ET

...The Pacific Tsunami Warning Center issued a regional warning for a part of the Pacific, including Vanuatu, New Caledonia and Fiji...

 

[tetano]

Re: Magnitude 7.3 - VANUATU REGION

Re: Magnitude 7.3 - VANUATU REGION

Tsunami warning issued for Vanuatu

The island, in the western Pacific, was hit by an earthquake early on Sunday morning, local time.

The epicentre was about 140 miles south of Vanuatu's capital, Port Vila.

The quake struck at 12:16am on Sunday local time (1316 GMT Saturday).There were no immediate reports of damage or casualties.

The tsunami warning covered Vanuatu, New Caledonia and Fiji.

Vanuatu, which lies between Fiji and Australia and north of New Zealand, is in the "Pacific Ring of Fire" known for its seismic and volcanic activity caused by moving plates in the Earth's crust.

http://www.telegraph.co.uk/news/wor...24936/Tsunami-warning-issued-for-Vanuatu.html

 

[Shiloh]

Re: Magnitude 7.3 - VANUATU REGION

Re: Magnitude 7.3 - VANUATU REGION

Source: http://www.weather.gov/ptwc/text.php?id=pacific.2010.12.25.144522

WEPA40 PHEB 251445
TSUPAC

TSUNAMI BULLETIN NUMBER 002
PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED AT 1445Z 25 DEC 2010

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

... TSUNAMI WARNING CANCELLATION ...

THE TSUNAMI WARNING AND/OR WATCH ISSUED BY THE PACIFIC TSUNAMI
WARNING CENTER IS NOW CANCELLED FOR

VANUATU / NEW CALEDONIA / FIJI

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
NOTE REVISED MAGNITUDE

ORIGIN TIME - 1317Z 25 DEC 2010
COORDINATES - 19.7 SOUTH 168.0 EAST
DEPTH - 33 KM
LOCATION - VANUATU ISLANDS
MAGNITUDE - 7.3

MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY

GAUGE LOCATION LAT LON TIME AMPL PER
------------------- ----- ------ ----- --------------- -----
VANUATU 17.8S 168.3E 1407Z 0.15M / 0.5FT 22MIN

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 INDICATE A TSUNAMI WAS GENERATED. IT MAY HAVE
BEEN DESTRUCTIVE ALONG COASTS NEAR THE EARTHQUAKE EPICENTER. FOR
THOSE 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.

NO TSUNAMI THREAT EXISTS FOR OTHER COASTAL AREAS IN THE PACIFIC
ALTHOUGH SOME OTHER AREAS MAY EXPERIENCE SMALL SEA LEVEL CHANGES.
THE TSUNAMI WARNING IS NOW CANCELLED FOR ALL AREAS COVERED BY
THIS CENTER.

THIS WILL BE THE FINAL BULLETIN ISSUED FOR THIS EVENT UNLESS
ADDITIONAL INFORMATION BECOMES AVAILABLE.

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

 

[Ronan Kelly]

Re: Magnitude 7.3 - VANUATU REGION TSUNAMI WARNING

Re: Magnitude 7.3 - VANUATU REGION TSUNAMI WARNING

...

The centre later cancelled the warning after reporting a small tsunami had occurred.

"Sea level readings indicate a tsunami was generated. It may have been destructive along coasts near the earthquake epicentre," it said.

Residents in Vanuatu and New Caledonia said they felt the quake but there were no large waves.

...

http://af.reuters.com/article/worldNews/idAFTRE6BO0MT20101225