Tsunami Hazard
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80,000 85,000 90,000 95,000 100,000 105,000 110,000 115,000 120,000 20 Periyamulla Dalupota Kadawala 20 Adikarimulla Dunagaha 225,000 20 225,000 Demanhandiya Disagewatta Kadawala Divulapitiya 20 20 Balagalla Kudapaduwa 20 Batepola 20 Henpitagedara Katuwellegama Mapalangedara Wellaweediya Kondagammulla Wewagedara Kinawinna Hunupitiya Katiyala 20 Bomugammana Maha Hunupitiya Dagonna Kamachchodai (Part) Hapuwalana DIVULAPITIYA Palugahawela 40 Horagasmulla 40 Udayartoppuwa Totillagahawatta 40 Muhandirampitiya Kundanwila 40 Katuwapitiya Alutepola Kadirana North 20 40 Hanchapola Tammita NEGOMBO 20 40 40 Duwa Angurukanamulla Kimbulapitiya 40 Muddaragama Pitipana Weediya 40 MIRIGAMA 20 Madittagama 40 Munnakkre Assennawatta 20 40 NEGOMBO 20 Mabodale 20 40 Pitipana Nilpanagoda Vitanamulla Goluwapokuna Horampella North 40 Watinapaha Kurana 20 Andiambalama Andiambalama Medagampitiya Yatiyana 20 20 ,000 220 Wankepumulla 220,000 Essalla Yatagama Boragodawatta Medamulla Horampella South Kurana-Katunayake Kowinna Dewamottawa Basiyawatta Paliyatiyana 20 Wegowwa Kamaragoda Metikotumulla KATANA Pillawatta Udugama Unnaruwa 20 Pallewewa Kotagedara Bulugahamulla Kalahapitiya Dewalapola Minuwangoda Katunayake North Maduwa Ambalangahawatta 20 Talahena Kalawana Wadumulla Ewariwatta Wattegedara Eluwapitiya Katunayake South Walanagoda Wadumulla Hiripitiya 20 Meegaspitiya Galoluwa 20 Wapitamulla 20 20 Pamunuwa Gamangedara Halgastota Mutuwadiya 20 Helakanda Arambe Kalahugoda Burullapitiya MINUWANGODA Matammana Wettewa Galoluwa Madawala Ellangala Gallegedara Polwatta Balabowa Wataddara Tempola Madawala Heenatiyana Kuswala 40 Makalanda Weliya Wellikada Amandoluwa Hendiyamahara Marapola Madangastuduwa 40 Goigama 40 Pattaduwana Kotakupe 40 Marapola Dungalpitiya Liyanagemulla Pattigoda 20 Urukalana Yagodamulla Korase 40 40 Wigoda Heendeniya Welhena 40 Raddolugama(Udagama) Ganepola Widiyawatta 40 Ihala Udugampola Petiyagoda ,000 40 215 215,000 40 40 Magalegoda Epambula 5 40 ATTANAGALLA Dadagamuwa Nekettagalla Seeduwa Pahala Udugampola Halgamppitiya Doranagoda Settappaduwa Nedagamuwa Uggalboda 40 Kehelbaddara 20 Bandarawatta Lauwella 40 Pidipola Kandoluwawa Mukalangamuwa 40 Kotugoda 40 Bandarabatawala Bemmulla 40 40 20 Raniswala Kotugoda 20 Kamburugoda Lokilangamuwa 40 Kepungoda Sioyambalapitiya Kebellegodawela Dambadure 40 Dombawala 20 20 Mudagaamuwa Alawatupitiya Mahawatta Colony Hagampitiya Batapola Ambalanmulla Watumulla Batepola Udammita Maduruwita Madelgamuwa Walpola 10 Kaluwalgoda 20 Hiriwalmulla Boraliyawatta 20 Kindigoda Ekala Kurunduwatta 20 Tittalapitigoda 20 Daraluwa 20 Asgiriwalpola 60 Akkaradahaya 40 Pitiyegedara Mahipalagoda Kudahakapola North 20 Megoda Bolanda Balangoda Mabima 20 Kitawala Megoda Tammita Tammita Bogamuwa NEGOMBO Morupola Medawatugoda Elenegoda Mahawita Gallawatta Pentenigoda Karanayakemulla Egodagoda Gampaha 20 Makewita Aluthgangoda Asgiriya Ihalagama Ekala Katugastara Karanayakemulla 20 Arambegodella Mahawatta Kedahakapola South Dandugama 20 Jositawatta Akuraliya Weediyawatta 20 Visakawatta Wellawatta Wahatiyagama(Udagama) Ambanwita Gonagaha Niwandanawatta North Morenna Tudella Kurunduwatta Gampaha Aluthgama Galtotomulla 20 ,000 210 Weliketiya (Part) Welikad Akarawita 210,000 Kirindiwita Kekulangoda Kehelwatugoda Bingpadura Midellawita Delature Yakkaduwa 20 Bendiyamulla Yakkala 20 Kotagedara Gampaha 40 Mahattuwa Walanegoda Tudella Kanuwana Pahalagama Tarakuliya Tarakuliya Pattinipitiya Tibbatugoda 40 Indigaslanda Maeliya Ratmalwita Epamulla 20 15 Niwandama South 40 20 Orutota Chandanagama Kuda bollate 20 Nugagasgodella 40 Kidagammulla Indiwitiya Ja-Ela Makilangamuwa Henarathgoda Pepol gahadeniya Aluthgamapituwalgoda Modawalagoda Yagoda Wewalgare 20 Pulluhena Tummodara 20 20 40 Sabaragaha Bopitiyaduwa JA-ELA Bollate North 20 20 Moragoda 20 Miriswatta Ambahitiya Weligampitiya 20 GAMPAHA Mankade 20 Henarathgoda 40 40 Meda Ganemulla 20 Wewala 60 Pulluhena South 20 Mottampandura Batagama North 40 Egodawatta Bulugahagoda Kimbulgoda Bollate South Kadawala (Part) Godagedara Kadawala (Part) Mudungoda Itanap[itiya 20 Galahitiyawa North Ganemulla Muturajawela Rilaulla Kinigama Pituwalgoda 20 Pahala Yagoda Kalaeliya Ihala Yagoda Batagama South 40 Galahitiyawa South 20 Belummahara Kunjawatta Meddegoda 20 40 20 Maharagama Paranaambalama Batuwatta West 40 Nugape Hapugoda 20 40 Walpola Pubudugama 40 Batuwatta East Pinwatta Kadana Walpola Kossinna Sivralumulla 40 Ragama North Nedurupitiya Kendaliyaddapaluwa 40 Galoluwa Walpola WATTALA 20 Uruwala ,000 20 205 Jayasirigama Udagama Amunugoda Ihala Imbulgoda 205,000 Uswetakeiyawa Narangodapaluwa Weliweriya West 20 Aniyakanda Nedungamuwa Dombagahawatta Peralanda 20 Katuwalamulla 40 Pahala Imbulgoda Nagoda 40 20 40 Kendaliyaddapalluwa west Weliweriya East 20 Pattiyawala 40 40 40 20 40 40 40 40 40 Ragama 20 40 40 40 Eatikehelgalla 40 Nawalokagama (Udagama) 4040 40 Kahatana Welisara 40 Kirillawala 40 40 Embaraluwa North 40 Taldiyawatta 40 40 40 40 40 40 Aluth Akkaraya MAHARA 20 20 40 Henegama Mahabage 60 40 Merawaramulla Weboda North 40 40 20 20 40 40 Elapitiwela 40 20 Suriyapaluwa 40 Mattumagala 80 Nashigama 40 Halanduruwa Horape 60 40 Nawanmahara Embaraluwa South Kerawalapitiya Magam,mana 20 40 40 40 Palliyawatta Rammutugala Galudupitiya 40 40 Weboda South 40 60 80 Heenkenda 40 Kurukulawa Puwakwetiya 40 Udupila Tuduwegedara Kirikitta WEKE Pahala Karagahamuna 40 Gongitota 80 60 40 40 Matagoda 60 60 20 20 kadawata 120 20 80 Kirimetiagara Gonahena East Naranwala 40 20 Ahugammana 20 Pinnameda 40 20 40 BIYAGAMA 20 20 60 20 20 20 200,000 200,000 mN KELANIYA 80,000 mE 85,000 90,000 95,000 100,000 105,000 110,000 115,000 120,000 Matagoda Pinnagoda Maranwala Dalupitiya Mabole Gonahena East Keragala Puwakwetiya Bathymetry: GEBCO data of 30 arc-second resolution supplemented with data from nautical charts for the inner grids. LEGEND Scale 1 : 50,000 TSUNAMI HAZARD MAP - SHEET 59 Main Road EEE Province Boundary LIMITATIONS 20 10 0 20 40 60 80 100 MAP INFORMATION As the nature of the tsunami depends on the initial seabed deformation due to the earthquake, which is poorly understood, the Minor Road EEEE District Boundary METHOD OF PREPARATION largest source of uncertainty is the input earthquake. Another significant limitation is that the resolution of the modeling is no Other Roads D.S.Div. Boundary Kilometre greater or more accurate than the bathymetric and topographic data used. The resolution of the model also constrains its µ Railway Tsunami inundation shown on the map is based on a computer model of waves generated by an event similar to the Balangoda Origin of the grid system is 200,000 metres South and 200,000 metres West of Pidurutalagala. ability to resolve some small-scale features of the onshore terrain including narrow waterways, and no warranties are made Village Name earthquake of moment magnitude 9.3 that occurred on 26th December 2004 in the Andaman-Sumatra subduction zone, which regarding the accuracy of the map nor the data from which the map was derived. LOCATION may be considered as the worst-case scenario for any part of the coastline of Sri Lanka. The model used is the Cornell Bridge / River / Stream / Canal NAGODA D.S.Div. Name Multigrid Coupled Tsunami Model (COMCOT) which solves the non-linear shallow water equations on a dynamically coupled Tsunamis are rare events, and owing to the paucity of known occurrences in the historical record, this map includes no CENTRAL 10 Tsunami Hazard Map system of nested grids using finite difference numerical schemes. information about the probability of any tsunami affecting any area within a specific period of time. While this tsunami hazard PROVINCE Tank Bathymetrical Contour / Value map has been compiled with the best currently available scientific information and base data, users are invited to notify Published by The bathymetric and topographic data that were used in the tsunami models comprise three nested grids. The near-shore grids CCCRMD/DMC of any map discrepancies. KANDY Index Contour Coastal Research and Design, with a 50 metre spatial resolution were adjusted to “Mean High Water” sea-level conditions, representing a conservative sea 52 Temple 53 54 20 level for the intended use of the tsunami hazard mapping. The computed tsunami inundation is shown on the map in three DISCLAIMER Intermediate Contour/ Value Coast Conservation and Resource Management Department Kovil color-coded depth ranges: less than 0.5, 0.5–2, and greater than 2 metres, corresponding to low, medium and high levels of The Coast Conservation and Coastal Resource Management Department (CCCRMD), The Engineering Design Centre (EDC) with the assistance from the hazard, respectively. The furthest extent of the model simulated tsunami inundation was verified, where possible, by field Supplimentery Contour of the University of Peradeniya, The Disaster Management Centre (DMC), and the United Nations Development Programme KEGALLE æ Church Disaster Management Centre 61 PURPOSE OF THIS MAP (UNDP) shall not be liable under any circumstances for any direct, indirect, special, incidental or consequential damages with 59 Hazard Levels (Low) Sri Lanka Mosque This tsunami hazard map is intended for use in coastal evacuation planning and in public education and awareness activities 60 May 2012 only. This map, and the information presented therein, is not a legal document and should not be used for any regulatory No part of this map may be reproduced in any form without prior written permission from the publishers. www.coastal.gov.lk GAMPAHA ^ Police Station purpose. School Hazard Levels (Medium) MAP BASE NUWARA G Hospital 66 ELIYA Topography: LIDAR digital ground model originally acquired at a horizontal resolution of 1 metre and a vertical resolution not Hazard Levels (High) COLOMBO 67 Historical Site more than 0.3 metre; and topographic base maps of scales 1:5,000 and 1:10,000 prepared by the Department of Survey, Sri 68 Lanka. Railway Station Cartographical Enhancement by The Survey Department of Sri Lanka.