Period of Survey

Jan. 6, 2005 - Jan. 9, 2005  (4 days)

Survey Team Members

Tomoya SHIBAYAMA	Dept. of Civil Eng., Yokohama National University
Akio OKAYASU	Dept. of Ocean Sciences, Tokyo University of Marine Science and Technology
Nimal WIJAYARATNA	Dept. of Civil and Env. Eng., Facalty of Eng., University of Ruhuna
Jun SASAKI	Dept. of Civil Eng., Yokohama National University
Takayuki SUZUKI	Dept. of Civil Eng., Yokohama National University
Ravindra JAYARATNE	A former Ph.D student of Yokohama National University

Tsunami survey results

---

Measured Tsunami Height (m)

---

Survey Results of Tsunami Height

※1	The ground height was measured by using an auto-level.
※2	Tsunami arrival time is assumed at 9:30 a.m. December 26, 2004 in local time.
※3	The corrections of tide are calculated from the tide table at Galle. The tide table is open to the public in below web page, which title is 'Astronomical Tide Levels along the Coasts of the Indian Ocean' made by Prof. Tsuji et al., Tokyo University. http://www.eri.u-tokyo.ac.jp/namegaya/sumatera/tide/index.htm

 

No.	Survey Point	Latitude (N)	Longitude (E)	Measured height (m)※1	Distance from Shoreline (m)	Inundation or Runup	Note	Measured Time (in Localtime)	Tsunami arrival time※2	Corrected tsunami height (m)※3
1	Gin River	6°3' 49.4"	80°10' 26.2"	4.00			Height of inundated bridge	10:40, Jan. 9, 2005	9:30, Dec. 26, 2004	4.10
		6°4' 26.1"	80°10' 42.3"	1.95	48	Inundation	Distance to Gin river. Trace on house walls	11:17, Jan. 9, 2005	9:30, Dec. 26, 2004	2.11
		6°5' 15.0"	80°10' 57.1"	1.19	24	Runup	Distance to Gin river. Maximum runup level (testimony)	11:43, Jan. 9, 2005	9:30, Dec. 26, 2004	1.38
				1.56	40	Runup	Distance to Gin river. Maximum runup level (testimony)			1.75
2	Polhena	5°56' 9.4"	80°31' 35.1"	2.60	389	Inundation		8:06, Jan. 8, 2005	9:30, Dec. 26, 2004	2.68
				2.27	461	Inundation	Trace on a gate			2.35
				2.07	905	Inundation				2.15
				2.22	640	Inundation	Trace on house walls			2.30
3	Matara	5°56' 35.4"	80°33' 0.2"	5.75	102	Inundation	Trash on a fence	17:58, Jan. 7, 2005	9:30, Dec. 26, 2004	5.82
				4.88	51	Inundation	Trace on house walls			4.95
4	Dickwella	5°57' 47.5"	80°41' 33.2"	5.49	66	Inundation		18:32, Jan. 8, 2005	9:30, Dec. 26, 2004	5.54
				4.68	108	Inundation				4.73
				4.55	59	Inundation	Trace on house inner walls			4.60
5	Tangalle	6°1' 51.1"	80°47' 58.0"	3.65	134	Inundation		16:48, Jan. 8, 2005	9:30, Dec. 26, 2004	3.78
				2.77	220	Inundation	Trace on walls			2.90
				2.96	180	Inundation	Trace on house walls			3.09
				2.39	412	Inundation	Trace on hut wall			2.52
				1.50	600	Inundation	Maximum runup level			1.63
				1.75	510	Inundation	Trace on house walls			1.88
6	Hambantota (Harbor)	6°7' 24.8"	81°7' 38.0"	10.03	9	Runup	Died grass level	14:52, Jan. 8, 2005	9:30, Dec. 26, 2004	10.29
				10.61	88	Runup	Maximum runup level			10.87
7	Hambantota (Residential area)	6°7' 52.3"	81°7' 42.9"	6.97	12			13:38, Jan. 8, 2005	9:30, Dec. 26, 2004	7.38
				6.97	86	Inundation	Trace on house walls			7.38
				5.09	170	Inundation	Breakage of house roofs			5.50
				6.76	96	Inundation	Trace on house walls			7.17
8	Kirinda	6°13' 5.2"	81°20' 12.1"	9.12	196	Runup	Bouy on a house roof	9:56, Jan. 8, 2005	9:30, Dec. 26, 2004	9.26
				6.79						6.93
				8.22	166	Runup	Breakage of house roofs			8.36
				6.84	20	Inundation	Trace on a sand dune			6.98
				6.85	40	Inundation	Trace on a sand dune			6.99
				7.51		Inundation	Died tree level			7.65
				9.05	250	Runup	Trace on house walls			9.19
				8.46	242	Runup	Maximum runup level (testimony)			8.60

last updated : Wed., Feb. 23, 2005

Copyright (C) 2005 SriLanka Group, International Tsunami Survey Team of Indian Ocean Tsunami Disaster.
All Rights Reserved.