NATURAL HAZARD MITIGATION WORKSHOP
ST. KITTS AND NEVIS
September 13 14, 2000
WORKSHOP REPORT
prepared by Cassandra T. Rogers, Ph.D.
for USAID / OAS Post-Georges Disaster Mitigation Project
September 27, 2000
Table of Contents
List of Tables
Table 1 Availability of Hazard Data: Priority Hazards
Table 2 Summary of Hazard Assessment Requirements
Table 3 Terms of Reference Guidelines for Natural Hazard Map Suite
Table 4 Workplan for Hazard and Vulnerability Assessments
Appendix
Table A1 Workshop Agenda
Table A2 Results of Workshop Evaluation
1.0 Introduction
As part of the Post-Georges Disaster Mitigation (PGDM) Project, the United States Agency for International Development (USAID) through the Organisation of American States (OAS), is assisting the Government of Antigua and Barbuda and St. Kitts and Nevis with the development of natural hazard mitigation plans (NHMP). In fulfillment of Task 7 of the NHMP workplan for St. Kitts and Nevis, a natural hazard / vulnerability assessment prioritisation workshop was held at the Ocean Terrace Inn in St. Kitts from September 13 14, 2000. This report summarises the workshop activities and recommendations.
2.0 Workshop Objectives
The objectives of the workshop were:
3.0 Workshop Description
The workshop agenda is presented as Table A1 of the Appendix. Forty participants attended, including representatives from the National Emergency Management Agency (National Coordinator and District Managers), the Ministries of Finance (Economic Planning), Health, Community and Social Development, Labour, Agriculture, Lands and Housing (Fisheries Division) and the Physical Planning Division, Public Works Division, Water Services Department, Electricity Department, Airport Operations and the Protective Services (Fire and Rescue, Police and Defence Force). The Nevis delegation was led by Mrs. Clara Walters, Permanent Secretary, Premiers Office, and included representatives from the Departments of Tourism, Housing and Land Development, Physical Planning and NEMA (Coordinator and District Managers). Mr. Mansfield Blackwood, USAID, Jamaica and Mr. Steven Stichter, PGDM Project Manager also attended.
The first day of the workshop was devoted to a review of hazard assessment methodologies, the identification and prioritisation of natural hazards and a data needs assessment for prioritised hazards. On Day 2, following a review of simple and detailed methodologies of vulnerability assessments, participants identified the critical facilities for which vulnerability assessments would be conducted under the project and complete part of an actual vulnerability assessment. During the latter part of the day, guidelines for the terms of reference for hazard assessment studies were developed and a workplan for the hazard and vulnerability assessments was completed.
3.1 Hazard Prioritisation and Data Needs Assessment
In order to identify the natural hazards for which hazard assessments would be performed under the project, participants conducted a formal prioritisation exercise to identify the natural hazards of critical importance to St. Kitts and Nevis. The prioritisation exercise employed a methodology which ranked the hazards on a relative ranking scale according to their probability, frequency, area of impact and magnitude. Using this methodology, six priority hazards were identified, viz.:
It was agreed that hazard assessments would only be conducted for inland erosion and drought based on availability of the relevant expertise.
Table 1 summarises both typical and existing hazard data for seven of the eight priority hazards (earthquake, volcano, wind, storm surge, flood, coastal erosion, inland erosion). Summaries of the hazard assessment requirements for each of the above hazards were developed during the workshop and are presented in Table 2.
3.2 Priority Critical Facilities and Needs Assessment
The workshop participants agreed that the project should focus on eight of the following types of critical facilities and /or sectors:
Participants were in agreement that the first six listed above should be included. It was agreed that the local Mitigation Guidance Committee would meet to finalise the eight categories and also to identify the supporting agencies which would be responsible for data collection and database development.
3.3 Vulnerability Assessment Exercise
Participants were divided into five groups. Using the detailed methodology discussed, each group conducted a vulnerability assessment of one of the following critical facility categories:
3.4 Terms of Reference Guidelines and Workplan
Terms of reference guidelines for hazard assessment studies for the eight priority hazards are presented in Table 3. A workplan was developed for both hazard and vulnerability assessment studies and is presented as Table 4.
4.0 Workshop Evaluation
A summary of the responses to the workshop questionnaire is presented in Table A2 of the Appendix. Participants rated the course as good or very good, and felt that the course had met its objectives and that it was very relevant to their jobs. All rated the course highly in terms of its success in improving their understanding of natural hazard and vulnerability assessment. The performance of the consultant was rated as very good. The participants all felt that handouts were helpful in understanding the workshop material. The large majority rated the physical facilities highly. Many participants felt that the course could have been longer, given the volume of material covered. Based on the wide range of answers of intended use of the information gleaned during the workshop, it appears that clear that the majority of participants understood the concepts discussed.
Suggestion for course improvement include increasing the course length, smaller class and/or group sizes, and ensuring that all the relevant sectors are represented.
5.0 Consultants Comments and Recommendations
Comments
Recommendations
Table 1
AVAILABILITY OF HAZARD DATA: PRIORITY HAZARDS
EARTHQUAKE HAZARD
TYPICAL HAZARD DATA |
EXISTING DATA |
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END PRODUCT | SOURCE DATA | END PRODUCT | SOURCE DATA | COMMENTS | |
Isoacceleration map (shows peak ground acceleration) |
|
|
|
|
|
Isointensity map |
|
|
|
|
|
Isovelocity |
|
|
|
|
|
Microzonation map (liquefaction) |
|
|
|
Generalised multihazard map; 1:25000; paper map, analogue data; located at PPU |
DATA GAPS | REQUIREMENTS |
PGA, Intensity maps ok but require finer resolution | 0.1 degree grid ? |
Liquefaction hazard map | Require DEM, surficial geology map |
VOLCANIC HAZARD
TYPICAL HAZARD DATA |
EXISTING DATA |
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END PRODUCT | SOURCE DATA | END PRODUCT | SOURCE DATA | COMMENTS | |
Volcanic hazard maps for different volcanic hazards, viz.: pyroclastic flows, lahars, airfall eruptions, volcanic landslides, volcanic tsunamis |
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|
|
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(scale 1: 100 000)
|
|
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END PRODUCT | SOURCE DATA | END PRODUCT | SOURCE DATA | COMMENTS | |
Map of channels for potential pyroclastic flows |
|
DATA GAPS | REQUIREMENTS |
St. Kitts: more detailed hazard maps required Nevis: hazard map required |
Nevis - areas affected by Montserrat-style eruption on Nevis Peak |
DTM for both islands, estimated flow parameters |
STORM SURGE AND WIND HAZARD
TYPICAL HAZARD DATA |
EXISTING DATA |
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END PRODUCT |
SOURCE DATA |
END PRODUCT |
SOURCE DATA |
COMMENTS |
|
Storm surge hazard maps |
|
Storm surge hazard map (Watson, 2000) return period |
|
||
END PRODUCT |
SOURCE DATA |
END PRODUCT |
SOURCE DATA |
COMMENTS |
|
Storm Surge Hazard Map (CIMH) (Ref. Storm surge atlas for St. Kitts and Nevis, CIMH) | USGS digital data sets |
|
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Potential sites for destructive storm surges |
|
FLOOD HAZARD
TYPICAL HAZARD DATA |
EXISTING DATA |
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END PRODUCT | SOURCE DATA | END PRODUCT | SOURCE DATA | COMMENTS | |
Flood Hazard Map |
|
Map of recorded flood events |
|
DATA GAPS | REQUIREMENTS |
Require detailed flood hazard maps | scale >=1:10000 |
COASTAL EROSION
TYPICAL HAZARD DATA |
EXISTING DATA |
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END PRODUCT | SOURCE DATA | END PRODUCT | SOURCE DATA | COMMENTS | |
Susceptibility to coastal erosion; Map of rate of coastal erosion |
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|
|
|
DATA GAPS | REQUIREMENTS |
Coastal erosion map for St. Kitts and Nevis | 1:25000 scale mapping |
DEM | < 10m resolution |
INLAND EROSION
TYPICAL HAZARD DATA |
EXISTING DATA |
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END PRODUCT | SOURCE DATA | END PRODUCT | SOURCE DATA | COMMENTS | |
Susceptibility to erosion hazard |
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|
|
- Check Cambers beach monitoring profiles reports |
DATA GAPS | REQUIREMENTS |
Inland erosion hazard for St. Kitts, Nevis Detailed erosion hazard maps for selected ghuts in St. Kitts and Nevis |
|
DEM; rainfall characteristics | < 10m resolution |
Table 2
Summary of Hazard Assessment Requirements
Hazard Type: | A. Wind |
Coverage: | St. Kitts and Nevis |
Hazard Product: | Maximum wind speeds for given return period |
Scale: | 200m grid resolution |
Level of Assessment: | Detailed |
Existing Data: |
|
Data Needs: |
|
Constraints: | - |
Comments / Recommendations: | - |
Hazard Type: | B. Storm Surge |
Coverage: | St. Kitts and Nevis |
Hazard Product: | Storm surge hazard |
Scale: | Grid resolution: 200m |
Level of Assessment: | Detailed |
Existing Data: |
|
Data Needs: |
|
Constraints: | - |
Comments / Recommendations: | For reef configuration and bathymetry data check:
|
Hazard Type: |
C. Ground shaking |
Coverage: | St. Kitts and Nevis |
Hazard Product: | Seismic Hazard Maps(peak ground acceleration, maximum mercalli intensity and maximum velocity for given return period) |
Scale: | 0.1 degree grid resolution |
Level of Assessment: | Detailed Methodology |
Existing Data: |
|
Data Needs: |
|
Constraints: | - |
Comments / Recommendations: | - |
Hazard Type: | D. Volcano |
Coverage: | St. Kitts and Nevis |
Hazard Product: | Volcanic hazard maps for relevant hazards |
Scale: | 1: 25000 |
Level of Assessment: | Detailed Methodology |
Existing Data: |
|
Data Needs: |
|
Constraints: | - |
Comments / Recommendations: | - |
Hazard Type: | E. Coastal Erosion |
Coverage: | St. Kitts and Nevis |
Hazard Product: | Erosion Hazard |
Scale: | 1: 25000 |
Level of Assessment: | Detailed Methodology |
Existing Data: |
|
Data Needs: | DEM under preparation by this project Ground Cover under preparation by this project |
Constraints: | - |
Comments / Recommendations: |
|
Hazard Type: | F. Flood |
Coverage: | St. Kitts and Nevis |
Hazard Product: | Flood Hazard Map |
Scale: | 1: 25000 |
Level of Assessment: | Detailed Methodology |
Existing Data: |
|
Data Needs: |
|
Constraints: | - |
Comments / Recommendations: |
|
Hazard Type: | G. Inland Erosion |
Coverage: | St. Kitts only |
Hazard Product: | Erosion Hazard |
Scale: | 1: 25000 |
Level of Assessment: | Detailed Methodology |
Existing Data: |
|
Data Needs: |
|
Constraints: | - Identification of relevant expertise |
Comments / Recommendations: |
|
Hazard Type: | H. Drought |
Coverage: | Nevis only |
Hazard Product: | Drought Hazard / Drought Index |
Scale: | 1: 25000 |
Level of Assessment: | Detailed Methodology |
Existing Data: |
|
Data Needs: | To verify |
Constraints: | - identification of relevant expertise |
Comments / Recommendations: |
|
Table 3: Terms of Reference Guidelines for Natural Hazard Map Suite
Hazard Type: | Wind, Storm Surge, Earthquake, Volcano, Flood, Coastal Erosion, Inland Erosion, Drought |
Coverage: | St. Kitts and Nevis - Wind, Storm Surge, Earthquake, Volcano,
Flood, Coastal Erosion St. Kitts only - Inland Erosion; Nevis only - Drought |
Scale of Mapping: | Drought, Flood, Erosion - 1:25000 Wind, Storm Surge: 200 m grid resolution Ground Shaking 0.1 degree grid resolution |
Deliverables: |
|
Information to include on map sheet: |
The hazard map itself should be located in the upper three quarters of the map sheet; the map title should be positioned in the top central area of the map, and the map scale on the lower left corner of the upper ¾ of the sheet. Items ii through ix are to be positioned in the lower quarter of the map sheet, with the legend and explanatory text in the left half and items iv, vii ix in the right half. |
Submission Date: | December 15, 2000 |
Other: | Project to specify projection, datum to be used |
Table 4: Workplan for Hazard and Vulnerability Assessments
TASK | DUTIES |
TIME / DEADLINE |
RESPONSIBILITY | |
6 | Compilation of data on hazards and resources at risk | Hazards: | ||
Wind, Ground Shaking: | - |
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Storm Surge:
|
10/10/00 | Wilkins, C. Herbert |
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Volcano:
|
10/10/00 |
|
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Coastal Erosion:
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10/10/00 |
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Flood:
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10/10/00 |
|
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Inland Erosion:
|
10/10/00 |
Warner/PS, Premiers Office, Nevis |
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Drought:
|
10/10/00 |
R. Solomon |
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Critical Facilities:
|
Mitigation Guidance Committee Supporting Agencies? |
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7 | Hazard / Vulnerability Prioritisation Workshop | Completed |
||
8 | Terms of reference for hazard mapping assessment contracts | 30/9 |
S. Stichter, C. Rogers | |
9 | Contracts by Project Coordinator to perform hazard assessments |
|
30/9 15/12 |
Consultants |
10 | Vulnerability Assessment Data Collection |
|
31/10 |
Supporting Agencies |
11 | Vulnerability Assessment |
|
1/11 31/1 |
S. Stichter, Consultant, Supporting Agencies/Sectors |
APPENDIX
Table A1: Workshop Agenda
USAID/OAS POST-GEORGES DISASTER MITIGATION PROJECT
HAZARD / VULNERABILITY ASSESSMENT PRIORITISATION WORKSHOP,
ST. KITTS AND NEVIS
September 13 14, 2000
Facilitator: Dr. Cassandra Rogers
AGENDA
Wednesday September 13
9.00 9.45 Opening Ceremony
9.45 10.00 Break
10.00 10.15 Introduction, Review of Definitions
Session 1 Hazard Assessment
10.15 11.15 Review of Hazard Assessment Methodologies
11.15 12.30 Hazard Prioritisation
12.30 1.30 Lunch
1.30 2.00 Hazard Prioritisation (contd)
2.00 3.00 Data Needs Assessment for Prioritised Hazards
3.00 3.15 Break
3.15 4.00 Data Needs Assessment for Prioritised Hazards
Thursday September 14
Session 2 Vulnerability Assessment
8.30 9.30 Vulnerability Assessment Methodologies
9.30 10.15 Identification and Prioritisation of Critical Facilities
10.15 10.30 Break
10.30 11.15 Data Needs Assessment for Critical Facilities
11.15 12.15 Vulnerability Assessment Exercise
12.15 1.15 Lunch
1.15 1.45 Vulnerability Assessment Exercise
Session 3 TOR / Workplan
1.45 - 2.30 Terms of Reference for Hazard Assessments
2.30 2.45 Break
2.45 3.45 Workplan
3.45 4.00 Closing Ceremony
Table A2: Results of Workshop Questionnaire
USAID/OAS
POST-GEORGES DISASTER MITIGATION PROJECT
NATURAL HAZARD / VULNERABILITY ASSESSMENT
PRIORITISATION WORKSHOP
ST. KITTS AND NEVIS
September 13 14, 2000
Workshop Questionnaire
25 30 Responses
In an effort to improve the quality of subsequent courses, please answer the following questions.
Please use the following rating system to answer all questions, except question 6, 7 and 8.
1 = Very Poor; 2 = Poor; 3 = Fair; 4 = Good; 5 = Very Good; n/a = not applicable.
1. How would you rate the following:
2. Were the handouts helpful in improving your understanding of the course material? 4.4
3. Was the course helpful in improving your understanding of natural hazard / vulnerability assessment: 4.6
In your current job?
4. Did the course meet its objectives? 4.5
5. How would you rate the course on an overall basis? 4.5
6. How do you intend to use this information directly in your current job? Explain.
7. How could the course be improved?
8. Add any additional comments here.
National Hazard Vulnerability/Prioritisation Workshop
Participant List
O.T.I Conference Room
13th-14th September, 2000
NAME (Please Print) | INSTITUTION | POST |
CONTACT NUMBERS |
Mr. Carl Herbert | NEMA | National Disaster Coordinator | 466-5100 (w) ext. 23 |
Kevin Williams | SKNDF | Lieutenant | 466-9279/80 (w) |
Austin Williams | Royal SKN Police Force | Inspector | 465-2999/465-2241 (w) |
Winston Murraine | Fire & Rescue Services | Fire Sub Officer | 465-6261 (w) |
Felix Frederick | Fire & Rescue Services | Fire Sub Officer | 465-6261 (w) |
Lavern Queeley | The Planning Unit | Project Officer | 465-2521 ext. 1252 (w) |
Arvid Frederick | The Planning Unit | Project Inspector | 465-2521 ext. 1252 (w) |
Ericson James | Min. of Finance | Economist | 465-2521 ext. 1244 (w) |
Mansfield Blackwood | USAID | Coordinator | 1876-926-3645 |
Lindsay Archibald | Environment | Conservation Officer | 465-4040 (w) |
Murchison Best | Public Works Department | Director | 465-0182 (w) |
Robert E. Warner | R. L. Bradshaw Airport | Asst. Man. Airport Operations | 465-5598 (w) |
Robin Singh | Electricity Department | Chief Engineer/Manager | 465-2000 (w) |
Solomon Morton | NEMA | District Manager | 465-3457 |
John Mills | Labour Department | NEMA District (6) Manager | 465-2521 ext. 1290 |
Mr. Glenn George | Labour Department | NEMA District (3) Manager | 465-2521 ext. 1288 |
Oliver Lawrence | Min of Health | Chief Health Officer | 465-2521 ext. 1271 |
Errol Finch | Carib supply Tech. Supervisor | NEMA District (2) Manager | 465-2621/8049 |
Telca Wallace | NEMA | Disaster Preparedness Officer | 466-5100 ext.25 |
Ralph Wilkin | Fisheries Management Unit | Fisheries Officer | 465-6300/8045 |
Marlene D. Liburd | Community & Social Dev. | Director | 465-2521 ext. 1154 |
Devon Liburd | Dept. of Tourism - Nevis | Tourism Officer | 469-1042 |
Cuthbert Caines | Sandy Point Post Office | NEMA District (4) Manager | 465-6296 9 (w) |
Goldwin O. Caines | NEMA | Public Relation Officer | 466-5100 ext. 22 |
Llewellyn Newton | NEMA - Nevis | Coordinator | 469-1423 |
David S. Keith | OAS | Project Coordinator | 466-4203 |
Cromwell Williams | Water Services Department | Chief Engineer | 465-2521 ext. 1128 |
Dwight Morton | NEMA - Nevis | District Chairperson | 469-2387/5521 |
Simeon Hill | Housing and Land Dev.- Nevis | Land Surveyor | 469-5951 |
Austin Jay Farrier | Planning Unit | Physical Planning Asst. | 465-2521 ext. 1064 |
Eduardo Mattenet | Physical Planning Unit | GIS Unit Officer | 465-2521 ext. 1064 |
Lewis Newton | Physical Planning Unit | Physical Planning Officer | |
Joseph Claxton | NEMA - Nevis | District Chairperson | 469-5473 ext. 131 |
Jennifer Weekes | NEMA - Nevis | District Chairperson | 469-0300 |
Patrick Williams | Physical Planning Division | Senior Physical Planning Officer | 465-2277/4702 |
Lynell Nolan | NEMA - Nevis | District Chairperson | 469-9165/1071 |
Venetta Hobson Moving | NEMA - Nevis | District Chairperson | 469-5521 ext. 2004 |
Mrs. Clara Walters | Premiers Office - Nevis | Permanent Secretary | 469-5521 ext. 2003 |
Othniel Hyliger | NEMA - St. Kitts | District (5) Manager | 465-6638/6385 |
Natalie Fough | Red Cross - St. Kitts | Director | 465-6508 |