INDEPENDENT NEWS

Warning: Tsunami Marine and Beach Threat #18 4:15 18/9/15

Published: Fri 18 Sep 2015 09:27 AM
National Warning: Tsunami Marine and Beach Threat
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No: 18
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Issued at 04:15 hours on 18/09/15.
The Ministry of Civil Defence & Emergency Management (MCDEM) has issued a tsunami warning (marine and beach threat) for the Chatham Islands and the East Coast of New Zealand.
People in coastal areas should:
1. Stay out of the water (sea, rivers and estuaries, including boating activities)
2. Stay off beaches and shore areas
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 local civil defence authorities
The tsunami warning will remain in effect until a cancellation message is issued by MCDEM. Updates will be issued hourly.
Only messages issued by MCDEM represent the official warning status for New Zealand, not those issued by the Pacific Tsunami Warning Centre (PTWC).
This warning has been issued to all local civil defence authorities, emergency services, other agencies and media. Local civil defence authorities will interpret this information for their areas and advise public action via local radio stations.
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More Detail
Areas under ‘Marine and Beach Threat’: Expect unusually strong currents and unpredictable water flows near the shore. This means a threat to beach, harbour, estuary and small boat activities. The severity of currents and changing water flows will vary within a particular coastal area and over the period this warning is in effect. Current assessments indicate that coastal inundation (flooding of land areas near the shore) is not expected but this assessment may change.
Note:
• The wave amplitudes given indicate the largest expected wave activity at any coastal point in the particular coastal zone and at any time during the entire period this warning is in effect (tsunami activity will vary in a zone and with time; the first wave activity may also not be the largest).
• The given amplitudes do not include the local tidal or sea state at the time oftsunami activity.
• Local authorities will determine the implication of the expected wave heights for their areas and will decide on appropriate response actions (e.g. evacuations). Listen or check for this information from your local authority.
Minor (approx <0.3m) fluctuations in wave height have been observed at the following Tsunami Gauges: North Cape Tauranga Great Barrier Island East Cape Gisborne Napier Castlepoint Wellington Kaikoura Christchurch
The Chatham Islands have experienced the most significant activity, with wave heights reaching around 0.5m.
Emergency management authorities are continuing to monitor the situation within their districts as Tsunami activity may continue for several hours.
This warning has been issued to all local civil defence authorities, emergency services, other agencies and media. MCDEM and scientific advisors are closely monitoring the situation to update this assessment. Information will be updated or repeated at least hourly until this warning is cancelled. Also seewww.civildefence.govt.nz
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Information for emergency managers
An earthquake has occurred with these parameters: Origin time:22:54 UTC SEP16 2015NZ time:10:54 NZST 16/9/2015Co-ordinates:31.5S, 72.0WDepth:10km/6MilesLocation:Near the coast of Central ChileMagnitude:8.3
Local and regional/Group Civil Defence Emergency Management must:
1. Maintain activation of appropriate response coordination arrangements and communication processes
2. Keep potentially at-risk communities informed as appropriate
3. Maintain contact with the NCMC (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 has activated the Memorandum of Understanding (MoU) with public broadcasters to broadcast this warning.
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NCMC status
The National Crisis Management Centre (NCMC) is activated. General enquiries(04) 494 6900Media enquiries(04) 494 6951Emailoperations@ncmc.govt.nzSatellite phone00881 621 465 606
Useful websites
http://www.civildefence.govt.nz/
http://www.getthru.govt.nz/
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Further updates
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.
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Issued by
Message authorised by the National Controller, Civil Defence Emergency Management.
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End of Message

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