Review of the Tsunami Evacuation 2017

the period this warning is in effect. Current assessments indicate that coastal inundation
(flooding in land areas near the shore) is not expected but this assessment may change. People
in Napier to north Dunedin, Cook Straight coastal areas and The Chatham Islands should: stay
out of the water, stay off beaches, do not go sightseeing, follow instructions of local civil
defence authorities, if beach threat is forecasted for your area, take appropriate evasive action.
Warning will remain in effect until a cancellation message is issued by MCDEM. Local civil
defence authorities will interpret this information for their areas and advise public action.
to Marine and Beach
Areas”
Map attached highlights Christchurch and Banks Peninsula as subject to a tsunami threat at a
level of 0.2 -1m tsunami threat levels.
Notification is unclear whether there continues to be a need to move inland or to higher ground.
11:22am Telephone to (Canterbury Regional Emergency Management Office) to request
any further updates from Canterbury CDEM Group
CDEM
Mobile phone records
supplied by Spark
Interview with
Interview with
11:50am
11:51am
Text alert received by CCC staff directing them to check email – “National Warning#13: UPDATE
Tsunami -Threat to Marine and Beach Areas”
Email received by CDEM Duty Officer re “National Warning#13: UPDATE Tsunami – Threat to
Marine and Beach Areas” advising “MCDEM has issued a tsunami warning (marine and beach
threat) from Wellington to Banks Peninsula. Please see the attached map for affected areas. The
threat for all other regions has been lifted. All previous threat regions may experience unusually
strong and unpredictable currents for some time. Areas under “Marine and Beach Threat’ can
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 in land areas near the
shore) is not expected but this assessment may change. People in Wellington to Banks
Peninsula should: stay out of the water, stay off beaches, do not go sightseeing, follow
instructions of local civil defence authorities, if beach threat is forecasted for your area, take
appropriate evasive action. Warning will remain in effect until a cancellation message is issued
MCDEM issued
text
National
Controller,
MCDEM issued
email
Screen shot of text from
mobile phone
Interview with
Interview with
Copy of email subject line:
“National Warning#13:
UPDATE – Threat to Marine
and Beach Areas”
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