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
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