National Advisory: Tsunami - Potential Threat to New Zealand
No: 01
Issued at 07:30 NZDT hours on 22/10/2011.

Issued by the Ministry of Civil Defence & Emergency Management (MCDEM).

A tsunami potential threat advisory is in effect for New Zealand:
The advisory will remain in effect until it is upgraded to a national warning or a cancellation message is issued by MCDEM.
An earthquake has occurred with these parameters:
Origin time: 1757 ZULU 21 OCT 2011
NZ time: 0657 NZDT 22 OCT 2011
Co-ordinates: 29.2 SOUTH 175.5 WEST
Depth: 16 KM
Location: KERMADEC ISLANDS REGION
Magnitude: 7.3
The above magnitude is provisional and may be increased or decreased as more seismic data becomes available.
Summary:

The Pacific Tsunami Warning Centre (PTWC) has issued a Tsunami Information Bulletin in response to the above earthquake.

Only messages issued by MCDEM represent the official warning status for New Zealand. Local civil defence authorities may supplement these messages by applying local threat assessments.

A tsunami is possible. MCDEM and scientific advisors are assessing the severity of the threat to New Zealand.

People in coastal areas should:

1. Stay off beaches
2. Stay out of the water (sea, rivers and estuaries, including boating activities)
3. Do not go sightseeing
4. Share this information with family, neighbours and friends
5. Listen to the radio and/or TV for updates
6. Follow instructions of your local Civil Defence authorities.

MCDEM and scientific advisors are closely monitoring the situation to determine whether a tsunami has been generated and to assess the severity of the threat to New Zealand. More information about this event will follow.

This advisory has been issued to all local civil defence authorities, emergency services, other agencies and media.
Information for emergency managers:

Local and regional/Group Civil Defence Emergency Management must:

1. Activate appropriate response coordination arrangements and communication processes
2. Alert potentially at-risk communities as appropriate
3. Establish contact with the NCMC once they have activated and inform NCMC of actions taken (CDEM Groups only)
4. Stand by for further information.

Local CDEM to act in coordination with regional/Group CDEM.

Local emergency services must establish and maintain active response coordination with respective local and regional/Group Civil Defence Emergency Management.

MCDEM is activating the Memorandum of Understanding (MoU) with public broadcasters to broadcast this advisory.
NCMC status:

The National Crisis Management Centre (NCMC) is being activated.
Further information:

A further update with more information will follow within the next hour. Until a cancellation is issued, updates will continue at least hourly. All further updates will be communicated by MCDEM via the national warning system.

Useful websites:
http://www.civildefence.govt.nz/
http://www.getthru.govt.nz/
Issued by:

Message authorised by the National Controller, Civil Defence Emergency Management.
End of Message

National Advisory: Tsunami - Potential threat to New Zealand Cancellation

No: 02
Issued at 0805 hours on 22 October 2011

Issued by the Ministry of Civil Defence & Emergency Management (MCDEM).

Tsunami advisory cancelled:
Sea level gauges on Rauol Island registered wave heights between 0.1 and 0.17m. The NZ Tsunami Experts Panel has convened and advise that there is no threat to New Zealand from this event.

In relation to the clean-up and salvage operation in the Bay of Plenty, it is not anticipated that there will be any adverse effects from this event. Normal beach activities may continue.

Abnormally strong currents may be experienced in some locations in the north of New Zealand. Caution is advised for swimmers, divers and recreational boat users.
Earthquake parameters:
Origin time: 1757Z, 21 October 2011
NZ time: 0657, 22 October 2011
Co-ordinates: 28.9S, 176.0W
Depth: Original 16km, revised to 40km
Location: Kermadec Islands
Magnitude: 7.4
The above magnitude is provisional and may be increased or decreased as more seismic data becomes available.
Summary:

This is the last message via the national warning system for this event.

This cancellation message has been issued to all local civil defence authorities, emergency services, other agencies and media.

This cancellation message will be broadcast under the Memorandum of Understanding (MoU) with public broadcasters.
NCMC status:

The National Crisis Management Centre (NCMC) is standing down from 0830.

After this time, normal Ministry of Civil Defence & Emergency Managment contact details will apply:

Useful websites:
http://www.civildefence.govt.nz/
http://www.getthru.govt.nz/
Issued by:

Message authorised by the National Controller, Civil Defence Emergency Management.
End of Message

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