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2004 Sumatra Tsunami, Survey around South Part of SriLanka

Questions to this page are addressed to E-mail: honda@coastal.t.u-tokyo.ac.jp

Aim

      Investigate the overall impact and reveal the effect of minimising the damage due to any coastal structures.

 


Content

Period of the Field Survey

Survey Team Members

Area covered

Results


Period of Survey

    From : Feb 25 th 2005     to     March 02 nd 2005  ( 5 days )


Survey Team Members

Shinji Sato

Dept. of Civil Eng., University of Tokyo

Yukio Koibuchi

Dept. of Frontier Sciences, University of Tokyo

Takahide Honda

Dept. of Civil Eng., University of Tokyo

Thisara Welhena

Dept. of Frontier Sciences, University of Tokyo

Suminda Ranasinghe

Dept. of Civil Eng., University of Tokyo


Results of the Field Investigations

Area covered

 

 
 
 

 

note :

1

 All measurements are taken from the shore line with a electronic distance measuring equipment. Existing water marks on  structures were referred as the flooding levels.

2 All the measurements published are as before the tidal correction

Detail Results of the Tsunami Heights Measured

Loc., Name of  the Location Coordinates

Measured height (m)

Distance from Shoreline (m)

Observed at

Type of Impact Measured Date and Time

Tsunami arrival time

Lat.,(N) Long.,(E)
1 Marawila , Lancigama beach (6)  07o 22'  35.3" 79 o 49'  23.1" 2.3 38.4 sand dune at Lancigama Beach, no flooding Feb 25 th 13.10 hrs 12.30 hrs
2 Vennapuwa North (5)  07o 21'  22.9" 79 o 49'  36.9" 1.8 70 at a house behind the beach nourishment flooding and minor damage Feb 25 th 12.30 hrs 12.30 hrs
3 Waikkala (3)  07o 17'  00.4" 79 o 50'  24.7" 2.7 24 behind the revetment at Ranweli hotel flooding and no damage Feb 25 th 10.45 hrs 12.30 hrs
4 Waikkala(4)  07o 16'  53.3" 79 o 50'  27.6" 1.6 35 beach room exposed to open coast flooding and minor damage Feb 25 th 11.45 hrs 12.30 hrs
5 Negombo (2)  07o 14'  16.0" 79 o 50'  27.3" 2.0 90.0

behind the south off shore breakwater of negombo

flooding and low damage Feb 25 th 9.30 hrs 13.30 hrs
6 Negombo(1)  07o 14'  7.2" 79 o 50'  27.2" 1.6 97.2

in front of a Beach room ,Browns beach hotel.

flooding and low damage Feb 25 th 8.30 hrs 13.30 hrs
7 South of Negombo, Talahena (7)  07o 09'  19.4" 79 o 49'  41.4" 2.3 18.8 near a house Behind the sand dune no  flooding Feb 25 th 16.00 hrs 12.30 hrs
8 Uswettakeiyawa (8)  07o 05'  11.3" 79 o 49'  42" 2.6 15 near a house Behind the sand dune no  flooding Feb 25 th 16.20 hrs 12.30 hrs
9 Colombo, Mattakuliya (10)  06o 58'  23.6" 79 o 52'  11.7" 2.7 170.5 water mark on a wall sever  flooding and damage Feb 25 th 18.20 hrs 12.00hrs
10 Hikkaduwa  06o 07'  55.9" 80 o 06'  6.8" 3.4 90 water mark on a wall of a house flooding and inundation March 01st 13.50 hrs 10.10 hrs
12 Unawatuna  06o 00'  28.1" 80 o 14'  30.3" 3.3 180 water mark on a wall of a house inundation Feb 27 th 14.45 hrs 9.40 hrs
13 Hambantota, in front of sand dunes  06o 08'  7.7" 81 o 08'  4.7" 8.8 65 water marks on damaged trees on the  sand dune flooding and Feb 28 th 14.25 hrs 9.30 hrs
14 Mahaseelawa Beach, Yala  06o 17'  30.4" 81 o 26'  10.1" 8.4 135 water marks on damaged trees on the  sand dune extreme damage and inundation Feb 28 th 11.15 hrs 9.30 hrs
15 Patanangala Beach , Yala  06o 20'  38.3" 81 o 29'  50.8" 11.3 110 water marks on damaged trees extreme damage and inundation Feb 28 th 10.10 hrs 9.30 hrs

Last updated : Thu., March. 10, 2005

Copyright (C) 2005 -Tsunami Survey Team, University of Tokyo , Japan. All Rights Reserved.