Skip to comments.7.7 Earthquake Northeast of New Zealand
Posted on 07/06/2011 12:31:22 PM PDT by BulletBobCo
Just reported on FOX
A BIG shake...............
Wow. Big one.
7.8 on USGS, out in the ocean quite a bit.
all of NZ is on a fault
About 800 miles from Auckland and 650 miles from Tonga.
Any Tsunami warnings yet?
I think it happened a wee bit before Bush’s time
ping- I think a tsunami warning has been issued.
The quake appears to be near the Kermadec Trench, where the Pacific Plate is being subducted beneath the Indo-Australian plate.
Mid-way between the northern edge of NZ and American Samoa. Out in the middle of nowhere, really.
Tsunami watch is the important thing.
TSUNAMI BULLETIN NUMBER 001
PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED AT 1912Z 06 JUL 2011
THIS BULLETIN APPLIES TO AREAS WITHIN AND BORDERING THE PACIFIC
OCEAN AND ADJACENT SEAS...EXCEPT ALASKA...BRITISH COLUMBIA...
WASHINGTON...OREGON AND CALIFORNIA.
... A TSUNAMI WARNING IS IN EFFECT ...
A TSUNAMI WARNING IS IN EFFECT FOR
KERMADEC IS / TONGA / NEW ZEALAND
FOR ALL OTHER AREAS COVERED BY THIS BULLETIN... IT IS FOR
INFORMATION ONLY AT THIS TIME.
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 - 1903Z 06 JUL 2011
COORDINATES - 29.4 SOUTH 175.7 WEST
DEPTH - 48 KM
LOCATION - KERMADEC ISLANDS REGION
MAGNITUDE - 7.8
IT IS NOT KNOWN THAT A TSUNAMI WAS GENERATED. THIS WARNING IS
BASED ONLY ON THE EARTHQUAKE EVALUATION. AN EARTHQUAKE OF THIS
SIZE HAS THE POTENTIAL TO GENERATE A DESTRUCTIVE TSUNAMI THAT CAN
STRIKE COASTLINES IN THE REGION NEAR THE EPICENTER WITHIN MINUTES
TO HOURS. AUTHORITIES IN THE REGION SHOULD TAKE APPROPRIATE
ACTION IN RESPONSE TO THIS POSSIBILITY. THIS CENTER WILL MONITOR
SEA LEVEL GAUGES NEAREST THE REGION AND REPORT IF ANY TSUNAMI
WAVE ACTIVITY IS OBSERVED. THE WARNING WILL NOT EXPAND TO OTHER
AREAS OF THE PACIFIC UNLESS ADDITIONAL DATA ARE RECEIVED TO
WARRANT SUCH AN EXPANSION.
ESTIMATED INITIAL TSUNAMI WAVE ARRIVAL TIMES AT FORECAST POINTS
WITHIN THE WARNING AND WATCH AREAS ARE GIVEN BELOW. ACTUAL
ARRIVAL TIMES MAY DIFFER AND THE INITIAL WAVE MAY NOT BE THE
LARGEST. A TSUNAMI IS A SERIES OF WAVES AND THE TIME BETWEEN
SUCCESSIVE WAVES CAN BE FIVE MINUTES TO ONE HOUR.
LOCATION FORECAST POINT COORDINATES ARRIVAL TIME
———————————————— —————— ——————
KERMADEC IS RAOUL_IS. 29.2S 182.1E 1929Z 06 JUL
TONGA NUKUALOFA 21.0S 184.8E 2017Z 06 JUL
NEW ZEALAND EAST_CAPE 37.7S 178.5E 2052Z 06 JUL
NORTH_CAPE 34.4S 173.3E 2054Z 06 JUL
GISBORNE 38.7S 178.0E 2059Z 06 JUL
AUCKLAND(E) 36.7S 175.0E 2200Z 06 JUL
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.
Link to Standard Information Statement
Link to Public Information Statement
Link to XML/CAP Message
Link to Printable Message
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 07/6/2011 at 12:13PM PDT
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.
Based on the earthquake magnitude, location and historic tsunami records, a damaging tsunami IS NOT expected along the California, Oregon, Washington, British Columbia, and Alaska coasts. At coastal locations which have experienced strong ground shaking, local tsunamis are possible due to underwater landslides.
At 12:03 PM Pacific Daylight Time on July 6, an earthquake with preliminary magnitude 7.8 occurred in the Kermadec Islands region, north of New Zealand . (Refer to the United States Geological Survey for official earthquake parameters.)
Pacific coastal regions outside California, Oregon, Washington, British Columbia, and Alaska should refer to the Pacific Tsunami Warning Center messages for information on the event.
This will be the only statement issued for this event by the West Coast/Alaska Tsunami Warning Center unless conditions warrant. See the WCATWC web site for basic tsunami information, safety rules, and a tsunami travel time map and table. (NOTE: Travel time maps and tables indicate forecasted times only, not that a wave was generated.)
USGS is now showing the depth at 1 km, which seems a bit unrealistic, although it does say the depth is “poorly constrained” at this point.