Northland Civil Defence Emergency Management Plan, 2010

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the failure is prolonged, there could be severe economic and social consequences.Human pandemic; the scenario evaluated was based on modeling that predicts a worst-case event with thefirst wave seeing 40% of people becoming ill in the first 8 weeks and 2% of these resulting in death.The next level of risk is posed by:A local volcano in the Bay of Islands which, while a relatively low probability event, could cause permanentdisplacement to people in a localised area and possibly have a significant impact on tourism and theNorthland economy.Telecommunications failure: The telecomms networks have more diversity than electricity or fuel andtherefore a lower probability of widespread failure, however the consequences on the economy are alsopotentially significant.Drought: A drought affecting the agricultural community could have major economic consequences. A worstcasescenario in an urban water supply drought is one which disrupts supply to the refinery (which relies onmains water supply to operate).2007 March and July flood eventsDuring both the March and July 2007 storms a low pressure system developed in the northern Tasman Sea andwas ‘blocked’ by high pressure systems further to the east of the country. This scenario caused a strengthening,very slow moving, northeast flow onto northland which caused heavy sustained rainfall.In the March storm, extremely heavy rainfall occurred over the eastern side of Northland with some rainfall totalsfor the two days exceeding 400 mm and in excess of 1/100 AEP 1 estimates (1 in 100 year return periods). Thisresulted in record high river flows in some east coast rivers and people were stranded by flood waters. One localBay of Islands woman was rescued by fire crew and volunteers from a tree above a swollen river.The July storm rainfall totals were less than those experienced during the March event, with only a few locationsrecording rainfall totals greater than 300 mm. However rainfall was more widespread across Northland with muchof the region receiving more than 100 mm in two days.The July storm was also associated with severe northeasterly gales which caused power outages across the districtwith gusts of up to 125km/hr recorded at Dargaville. The combination of gale force winds and high tides causedsignificant storm surge along the east coast.A state of local emergency was declared in the Far North district with 160 people being displaced at the height ofthe storm. Communities on the coastbecame stranded with roads beingblocked or washed away. Utilitiessuch as phone, power, water andsewage were cut and some areas inNorthland experienced a loss ofelectricity for up to 7 days. Extra staffhad to be brought in from otherregions to restore power toNorthland.There was no loss of life during eitherweather events but there wereseveral lucky escapes in hazardouscircumstances and many people werecaught unprepared.Damage to Old Russell Road, HelenaBay March 20071 An AEP is the annual excedence probability which is the probability of an event of a particular magnitude(characterised by a rainfall depth or peak flood size) being exceeded in any year.Northland Civil Defence Emergency Management Plan, 2010-2015 Page 22
Figure 12: River Network in NorthlandMore information on particular hazard and risks, and their relevance for specific localities and communities, isavailable from local territorial authority authorities though various information sources, such as:Land Information and Property Information MemorandaHazard mappingPolicies and plans, such as regional and district resource management plansPublic information/educational programmes on hazard management and civil defence.Northland Civil Defence Emergency Management Plan, 2010-2015 Page 23
Page 2: PLAN STRUCTURESection1:Introduction
Page 5 and 6: GLOSSARY OF TERMSCommonly used term
Page 7 and 8: SUMMARYThe Northland Civil Defence
Page 9 and 10: 1 INTRODUCTIONSection 1 outlines th
Page 11 and 12: 1.3 THE PLAN CONTEXT1.3.1 CORE PRIN
Page 13 and 14: 1.4.1 NORTHLAND CDEM GROUP VISION A
Page 15 and 16: 1.4.3 HOW THIS PLAN SUPPORTS NATION
Page 17 and 18: Whangarei District population risin
Page 19 and 20: 2.1.3 ECONOMIC ENVIRONMENTPROFILETh
Page 21: 2.2 CDEM GROUP HAZARDSCAPE2.2.1 ANA
Page 25 and 26: 2.3 HAZARD RISK PRIORITIES2.3.1 THE
Page 28 and 29: 3 RISK REDUCTIONThis section provid
Page 30 and 31: In 2009, NRC published a review of
Page 32 and 33: 4 READINESSThis section provides an
Page 34 and 35: 4.2 COMMUNITY READINESS4.2.1 AWAREN
Page 36 and 37: 4.3 GROUP READINESS: STAFF CAPACITY
Page 38 and 39: 2. To facilitate communication betw
Page 40 and 41: Other OrganisationPlans(refer Appen
Page 42 and 43: OBJECTIVE 3d:Current Status:Methodo
Page 44 and 45: In terms of effort applied to respo
Page 46 and 47: 5.3 CDEM EMERGENCY OPERATING CENTRE
Page 48 and 49: Welfare Centres can also be set up
Page 50 and 51: Table 9: Specific Response Issues a
Page 52 and 53: audience. The information it provid
Page 54 and 55: 6 RECOVERYThis section sets out the
Page 56 and 57: The role of the Group Recovery Mana
Page 58 and 59: 7 MONITORING AND EVALUATIONThis sec
Page 60 and 61: CommunityEducation /ParticipationCD
Page 62 and 63: 8 MANAGEMENT AND GOVERNANCEThis sec
Page 64 and 65: The functions of the Group are deta
Page 66 and 67: 8.3.3 WORK PROGRAMMESAn annual work
Page 68 and 69: During a declared emergency (Level
Page 70 and 71: APPENDIX A - ORGANISATIONS WITH A K
Page 72 and 73:
APPENDIX B - HAZARD SUMMARIESThe re
Page 74 and 75:
WIDESPREAD HEAVY STORMSOverviewHaza
Page 76 and 77:
VOLCANOOverviewHazardLikelihood (E)
Page 78 and 79:
Figure 20: Historical Earthquake Lo
Page 80 and 81:
DROUGHTSOverviewA drought can be de
Page 82 and 83:
Table 13: Infrastructure Failure Sc
Page 84 and 85:
MAJOR TRANSPORT ACCIDENTOverviewHaz
Page 86:
ANIMAL / PLANT DISEASE AND PESTSOve
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Northland Civil Defence Emergency Management Plan, 2010

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