Basic list of measurements made in Sibolga and Nias Island

By the Russian team during the field survey on Sumatra and Nias Island on January 20-29, 2005.

All height are corrected for the tide level.

SITE NAME
LAT(N)
LONG(E)
* T
HEIGHT (m)
Comment
Sumatra
Lhokseumawe
5.2494
96.9128
I
2.90
Watermark on the wall
Lhokseumawe
5.2347
97.0597
I
1.70
Witness account
Sibolga (fishery port)
1.7183
98.7971
I
1.60
Watermark at the wall, 310 m from the coast
Sibolga (fishery port)
1.7193
98.7951
I
1.63
Watermark at the wall, 75 m from the coast
Sibolga (passanger port)
1.7289
98.7852
I
1.50
Story of Mrs.Jay
Sibolga (tide gauge)
1.7288
98.7852
T
2.60
Max wave at 14:00 (peak to trough)
South of Sibolga
1.6636
98.8257
I
1.50
Story of some witness
Pasarsorkam
1.8712
98.5651
I
1.00
Watermark at the door
Barus
2.0082
98.4027
R
1.70
Run-up on the beach
Sigli
5.3871
95.9639
I
4.40
Watermark on the house 35 m from sea
Sigli
5.3882
95.9629
I
4.00
Watermark on the house 50 from sea
Sigli
5.3881
95.9624
I
3.50
Watermark on the house 110m from sea
Sigli
5.3880
95.9619
I
3.10
Watermark on the house 160m from sea
Nias Island
Muawe village
1.4012
97.2124
R
2.80
Run-up on the beach, 1.45km E of Muawe
Muawe village
1.3958
97.1700
I
3.80
Watermark at the door
Medrehe
1.0032
97.4047
R
1.50
Point of farest tsunami penetration
Medrehe
1.0077
97.4050
I
3.50
Watermarks on trees in jungle
Medrehe
1.0158
97.3933
I
4.50
Debris on trees near the coast
Sirombu
0.9569
97.4244
I
2.00
Max wave penetration 915 m
Sirombu
0.9514
97.4189
I
4.60
Watermark at the door
Sirombu
1.0075
97.4050
I
5.30
Watermark by debris
Sirombu
1.0042
97.4086
I
4.50
Watermark by debris
Sirombu
0.9508
97.4214
I
4.65
Watermark by debris
Hilirihono
0.5742
97.7316
I
2.50
Watermark on wall. Max flooding  400m
Hilirihono
0.5680
97.7090
I
2.90
Watermark on the wall
Gunungsitoli
1.2880
97.6090
I
1.50
Witness account

* T - type of measurement (R - run-up height, I - inindaton height, T - tide-gauge)

Additional Comment: Maximum heights is Sibolga were observed between 12 and 17 of local time; 4 to 9 hours after the earthquake. Travel time of the leading tsunami wave to Sibolga port was 1:40 min. Its height was only 60 cm.

Dr. Viacheslav K. Gusiakov
Head, Tsunami Laboratory,
Institute of Computational Mathematics and Mathematical Geophysics
Siberian Division, Russian Academy of Sciences

Pr.Lavrentieva, 6
Novosibirsk 630090
Russia
Tel. <7>(3832)30-70-70
Fax. <7>(3832)30-87-83
Email: <mailto:gvk@sscc.ru>

Tsunami Laboratory
2004 Indian Ocean tsunami