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Magnitude 7.6 - Kermadec Islands Region - Tsunami warning for New Zealand - cancelled

Pathfinder

Pathfinder

Editor, Senior Moderator
Magnitude 7.8 - KERMADEC ISLANDS REGION

2011 July 06 19:03:16 UTC

Earthquake Details

  • This event has been reviewed by a seismologist.
<TABLE id=parameters summary="Earthquake Details"><TBODY><TR><TH>Magnitude</TH><TD>7.8 (Preliminary magnitude ? update expected within 15 minutes)</TD></TR><TR><TH>Date-Time</TH><TD>
  • Wednesday, July 06, 2011 at 19:03:16 UTC
  • Thursday, July 07, 2011 at 07:03:16 AM at epicenter
</TD></TR><TR><TH>Location</TH><TD>29.400?S, 175.700?W</TD></TR><TR><TH>Depth</TH><TD>48 km (29.8 miles) set by location program</TD></TR><TR><TH>Region</TH><TD>KERMADEC ISLANDS REGION</TD></TR><TR><TH>Distances</TH><TD>
  • 211 km (131 miles) E (95?) from Raoul Island, Kermadec Islands
  • 919 km (571 miles) S (183?) from NUKU'ALOFA, Tonga
  • 2964 km (1842 miles) WSW (239?) from PAPEETE, Tahiti, French Polynesia
</TD></TR><TR><TH>Location Uncertainty</TH><TD>Error estimate not available</TD></TR><TR><TH>Parameters</TH><TD>NST= 22, Nph= 22, Dmin=245 km, Rmss=1.41 sec, Gp=184?,
M-type="moment" magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=1
</TD></TR><TR><TH>Source</TH><TD>
</TD></TR><TR><TH>Event ID</TH><TD>at00lnxe9i</TD></TR></TBODY></TABLE>

http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/at00lnxe9i.php
 
Re: Magnitude 7.8 - Kermadec Islands Region - Tsunami warning for New Zealand

Re: Magnitude 7.8 - Kermadec Islands Region - Tsunami warning for New Zealand

Tsunami warning for New Zealand

LATEST: A 7.8 quake that hit 800km off the coast of New Zealand has sparked a tsunami warning for the country.

The quake hit at 7.03 this morning and was felt in Wellington.

US Geological Service said a tsunami warning had been issued for New Zealand, affecting East Cape, North Cape, Gisborne and Auckland.

The Pacific Tsunami Warning Center in Honolulu said if a tsunami occurred, it would arrive at Gisborne at 8.59am and at Auckland about 10am..

However, a New Zealand Civil Defence spokesman said there was a "potential" tsunami threat but it had not issued its own warning.
Civil Defence was monitoring the situation and would give an update every hour, until a cancellation was issued.

People in coastal areas should stay off beaches, keep out of the water - including rivers and estuaries - and not go sightseeing, Civil Defence said.

...
http://www.stuff.co.nz/dominion-post/news/5247203/Tsunami-warning-for-New-Zealand
 
Re: Magnitude 7.8 - Kermadec Islands Region - Tsunami warning for New Zealand

Re: Magnitude 7.8 - Kermadec Islands Region - Tsunami warning for New Zealand

000
WEPA40 PHEB 061912
TSUPAC

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

EVALUATION

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.


http://ptwc.weather.gov/ptwc/text.php?id=pacific.2011.07.06.191230
 
Re: Magnitude 7.8 - Kermadec Islands Region - Tsunami warning for New Zealand

Re: Magnitude 7.8 - Kermadec Islands Region - Tsunami warning for New Zealand

MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY

GAUGE LOCATION LAT LON TIME AMPL PER
------------------- ----- ------ ----- --------------- -----
BOAT COVE RAOUL IS 29.3S 177.9W 1922Z 0.68M / 2.2FT 04MIN
FISHING ROCK RAOUL 29.3S 177.9W 1923Z 0.84M / 2.7FT 04MIN

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.

http://ptwc.weather.gov/ptwc/?region=1&id=pacific.2011.07.06.193317&obs
 
Re: Magnitude 7.8 - Kermadec Islands Region - Tsunami warning for New Zealand

Re: Magnitude 7.8 - Kermadec Islands Region - Tsunami warning for New Zealand

NZ tsunami warning downgraded after 7.8 quake

breaking news updated 08:20
Published: 7:15AM Thursday July 07, 2011 Source: ONE News
kermadec_quake_2.jpg

Source: ONE News <!---->

The Ministry of Civil Defence and Emergency Management (MCDEM) says there is the potential for a small tsunami to hit New Zealand after a powerful 7.8 earthquake struck off the Kermadec Islands.
...
Earlier there was a tsunami advisory warning issued for the Pacific by the Pacific Tsunami Warning Centre but Barry Hirshorn from the centre told Breakfast just after 8am it had cancelled its tsunami warning. It said "fairly small" wave was now expected.

Civil Defence's David Coetzee told TV ONE's Breakfast MCDEM weren't warning of a huge wave but there would be many swells and there is a marine threat.

"We are not talking about one wave quickly and it's over, it will be pretty turbulent for the rest of the day," Coetzee said.

He said boaties should secure their boats.

"We are not talking about significant land damage or that boats will be snapped, it's just a dangerous situation to be in the water."

He said any surge is likely to be about a metre high on current estimates.

"We have issued the warning to the whole of New Zealand but the areas from North Cape to Hawke's Bay are more prone today."
...
If there is a tsunami, it is estimated it would hit New Zealand at these times:

East Cape - 8.52am
North Cape - 8.54am
Gisborne - 8.59am
Auckland's east coast - 10am

Full text:
http://tvnz.co.nz/world-news/nz-tsunami-warning-downgraded-after-7-8-quake-4289781
 
Re: Magnitude 7.8 - Kermadec Islands Region - Tsunami warning for New Zealand - cancelled

Re: Magnitude 7.8 - Kermadec Islands Region - Tsunami warning for New Zealand - cancelled

Tsunamis had struck the Kermadec Islands and Raoul Island this morning. The waves were 68cm and 1m high.

The PTWC had issued a tsunami warning for Tonga and New Zealand, affecting Northland, the Bay of Plenty, and East Coast of the North Island, but has now cancelled this.

Gisborne Civil Defence controller Jon Davies said a small wave had been generated which had created a marine threat only.

There was no threat to land and no evacuations were planned.

http://www.stuff.co.nz/dominion-post/news/5247203/Tsunami-threat-for-New-Zealand
 
Re: Magnitude 7.6 - Kermadec Islands Region - Tsunami warning for New Zealand - cancelled

Civil Defence admits mixed messages over tsunami

By Paul Harper

10:34 AM Thursday Jul 7, 2011

The New Zealand Civil Defence acknowledges there were mixed messages with this morning's tsunami warning following this morning's 7.6 magnitude earthquake off the Kermadec Islands.

The Pacific Tsunami Warning Centre issued and cancelled its tsunami warnings before the Civil Defence, however the PTWC warnings are not an official status for New Zealand.

Civil Defence advisories are the official status for New Zealand.

Civil Defence operations manager David Coetzee said there were mixed messages as to the warning situation this morning.

"I appreciate it can be pretty confusing," he said.

More...
http://www.nzherald.co.nz/nz/news/article.cfm?c_id=1&objectid=10736913
 
Re: Magnitude 7.6 - Kermadec Islands Region - Tsunami warning for New Zealand - cancelled

Thursday July 7, 2011

Cancellation of Tsunami Warning to Auckland 02


Auckland Civil Defence has been advised that there is no further tsunami risk to Auckland from the earthquake that occurred at the Kermadec Islands today at 7:03am today. However, as a precaution, Auckland Civil Defence is continuing to monitor the situation.
  • Wave activity around New Zealand is expected to continue but to decline in height over the next few hours.
  • There is still a likelihood of strong currents in coastal areas.
  • Beach areas should now be safe, however people should remain alert for unusual sea activity.
?Today was a timely reminder about the very real need that an emergency can happen at any time and everyone must be prepared,? said Auckland Civil Defence Controller Clive Manley.

ENDS

Useful websites
? www.aucklandcivildefence.org.nz
? www.civildefence.govt.nz

http://www.aucklandcivildefence.org.../Cancellation-of-Tsunami-Warning-to-Auckland/
 
Re: Magnitude 7.6 - Kermadec Islands Region - Tsunami warning for New Zealand - cancelled

Latest Earthquakes M5.0+ in the World - Past 7 days


Latest Earthquakes Magnitude 5.0 and Greater in the World - Last 7 days

Versi?n en Espa?ol
Magnitude 5 and greater earthquakes located by the USGS and contributing networks in the last week (168 hours). Magnitudes 6 and above are in red. (Some early events may be obscured by later ones on the maps.)
The most recent earthquakes are at the top of the list. Times are in Coordinated Universal Time (UTC). Click on the word "map" to see a ten-degree tall map displaying the earthquake. Click on an event's "DATE" to get a detailed report.
DISCLAIMER


Update time = Thu Jul 7 15:37:12 UTC 2011

<TABLE border=0 cellSpacing=1 cellPadding=1><TBODY><TR><TH></TH><TH align=middle>MAG </TH><TH align=middle>UTC DATE-TIME
y/m/d h:m:s
</TH><TH align=middle>LAT
deg
</TH><TH align=middle>LON
deg
</TH><TH align=middle>DEPTH
km
</TH><TH>Region</TH></TR><TR><TD vAlign=top noWrap align=middle>MAP</TD><TD vAlign=top noWrap align=middle>5.3 </TD><TD vAlign=top noWrap align=middle>2011/07/07 14:53:53 </TD><TD vAlign=top noWrap align=right>-33.701 </TD><TD vAlign=top noWrap align=right>-178.841 </TD><TD vAlign=top noWrap align=right>40.3 </TD><TD vAlign=top>SOUTH OF THE KERMADEC ISLANDS</TD></TR><TR><TD vAlign=top noWrap align=middle>MAP</TD><TD vAlign=top noWrap align=middle>5.0 </TD><TD vAlign=top noWrap align=middle>2011/07/07 13:47:02 </TD><TD vAlign=top noWrap align=right>-33.705 </TD><TD vAlign=top noWrap align=right>-178.657 </TD><TD vAlign=top noWrap align=right>29.4 </TD><TD vAlign=top>SOUTH OF THE KERMADEC ISLANDS</TD></TR><TR><TD vAlign=top noWrap align=middle>MAP</TD><TD vAlign=top noWrap align=middle>5.3 </TD><TD vAlign=top noWrap align=middle>2011/07/07 13:07:23 </TD><TD vAlign=top noWrap align=right>-29.065 </TD><TD vAlign=top noWrap align=right>-177.124 </TD><TD vAlign=top noWrap align=right>24.4 </TD><TD vAlign=top>KERMADEC ISLANDS, NEW ZEALAND</TD></TR><TR><TD vAlign=top noWrap align=middle>MAP</TD><TD vAlign=top noWrap align=middle>5.5 </TD><TD vAlign=top noWrap align=middle>2011/07/07 09:29:58 </TD><TD vAlign=top noWrap align=right>-29.119 </TD><TD vAlign=top noWrap align=right>-176.942 </TD><TD vAlign=top noWrap align=right>22.0 </TD><TD vAlign=top>KERMADEC ISLANDS REGION</TD></TR><TR><TD vAlign=top noWrap align=middle>MAP</TD><TD vAlign=top noWrap align=middle>6.0 </TD><TD vAlign=top noWrap align=middle>2011/07/07 09:10:52 </TD><TD vAlign=top noWrap align=right>-28.941 </TD><TD vAlign=top noWrap align=right>-176.732 </TD><TD vAlign=top noWrap align=right>19.9 </TD><TD vAlign=top>KERMADEC ISLANDS REGION</TD></TR><TR><TD vAlign=top noWrap align=middle>MAP</TD><TD vAlign=top noWrap align=middle>5.5 </TD><TD vAlign=top noWrap align=middle>2011/07/07 04:40:17 </TD><TD vAlign=top noWrap align=right>-29.684 </TD><TD vAlign=top noWrap align=right>-176.358 </TD><TD vAlign=top noWrap align=right>19.4 </TD><TD vAlign=top>KERMADEC ISLANDS REGION</TD></TR><TR><TD vAlign=top noWrap align=middle>MAP</TD><TD vAlign=top noWrap align=middle>5.0 </TD><TD vAlign=top noWrap align=middle>2011/07/07 02:10:21 </TD><TD vAlign=top noWrap align=right>-29.140 </TD><TD vAlign=top noWrap align=right>-176.760 </TD><TD vAlign=top noWrap align=right>19.5 </TD><TD vAlign=top>KERMADEC ISLANDS REGION</TD></TR><TR><TD vAlign=top noWrap align=middle>MAP</TD><TD vAlign=top noWrap align=middle>5.1 </TD><TD vAlign=top noWrap align=middle>2011/07/07 01:26:39 </TD><TD vAlign=top noWrap align=right>-29.382 </TD><TD vAlign=top noWrap align=right>-176.212 </TD><TD vAlign=top noWrap align=right>19.7 </TD><TD vAlign=top>KERMADEC ISLANDS REGION</TD></TR><TR><TD vAlign=top noWrap align=middle>MAP</TD><TD vAlign=top noWrap align=middle>5.2 </TD><TD vAlign=top noWrap align=middle>2011/07/07 00:33:37 </TD><TD vAlign=top noWrap align=right>-28.951 </TD><TD vAlign=top noWrap align=right>-176.697 </TD><TD vAlign=top noWrap align=right>26.4 </TD><TD vAlign=top>KERMADEC ISLANDS REGION</TD></TR></TBODY></TABLE>

<HR><TABLE border=0 cellSpacing=1 cellPadding=1><TBODY><TR><TD vAlign=top noWrap align=middle>MAP</TD><TD vAlign=top noWrap align=middle>5.3 </TD><TD vAlign=top noWrap align=middle>2011/07/06 21:04:03 </TD><TD vAlign=top noWrap align=right>-29.337 </TD><TD vAlign=top noWrap align=right>-176.114 </TD><TD vAlign=top noWrap align=right>16.8 </TD><TD vAlign=top>KERMADEC ISLANDS REGION</TD></TR><TR><TD vAlign=top noWrap align=middle>MAP</TD><TD vAlign=top noWrap align=middle>5.6 </TD><TD vAlign=top noWrap align=middle>2011/07/06 20:35:39 </TD><TD vAlign=top noWrap align=right>-29.564 </TD><TD vAlign=top noWrap align=right>-176.203 </TD><TD vAlign=top noWrap align=right>10.0 </TD><TD vAlign=top>KERMADEC ISLANDS REGION</TD></TR><TR><TD vAlign=top noWrap align=middle>MAP</TD><TD vAlign=top noWrap align=middle>7.6 </TD><TD vAlign=top noWrap align=middle>2011/07/06 19:03:17 </TD><TD vAlign=top noWrap align=right>-29.312 </TD><TD vAlign=top noWrap align=right>-176.204 </TD><TD vAlign=top noWrap align=right>20.0 </TD><TD vAlign=top>KERMADEC ISLANDS REGION</TD></TR></TBODY></TABLE>

http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/quakes_big.php
 
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