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| Great Sumatran fault | |
|---|---|
| Semangko Fault | |
 | |
| Location | Sumatra |
| Country | Indonesia |
| Characteristics | |
| Length | ~1650-1900km |
| Tectonics | |
| Plate | Australian plate, Eurasian plate |
| Earthquakes | 24 June 1933, 19 Sept 1936, 1943 Alahan Panjang earthquake, 2 April 1964, 1994 Liwa earthquake, March 2007 Sumatra earthquakes |
| Type | strike-slip fault |
The Great Sumatran fault, also known as Semangko fault, is a large strike-slip fault running the entire length of the island of Sumatra. This Indonesian island is located in a highly seismic area of the world, including a subduction zone off the west coast of the island.
The Great Sumatran fault zone accommodates most of the strike-slip motion associated with the oblique convergence between the Indo-Australian plate and Eurasian plate[1] The fault ends in the north near the city of Banda Aceh, which was devastated in the 2004 Indian Ocean earthquake.
- ^ Sieh, K.; Natawidjaja, D. (2000), "Neotectonics of the Sumatran fault, Indonesia" (PDF), Journal of Geophysical Research: Solid Earth, 105 (B12), Wiley: 28, 295–28, 326, Bibcode:2000JGR...10528295S, doi:10.1029/2000jb900120