The Influence of Seismic Activity in South Sulawesi Area to the Geomor-phology of Jeneberang Watershed
| Main Author: | Massinai, Muhammad Altin |
|---|---|
| Terbitan: |
International Journal of Engineering and Technology
, 2013
|
| Subjects: | |
| Online Access: |
http://repository.unhas.ac.id/handle/123456789/8081 |
Daftar Isi:
- Seismicity is one of the parameters of tectonic activity in a region. Jeneberang watershed in South Sulawesi is the clean water source for the cities of Makassar and Sungguminasa. seismic activity of Jeneberang watershed in the southern part of South Su-lawesi arm seemed dominated by shallow earthquakes (depth less than 60 kilometers) and medium-sized earthquakes (depths between 60-300 kilometers). Distribution of earthquakes with intermediate depth look at coordinates 119,15o - 120,15o E and 4,8o - 5,5o S. Earthquakes that occur on land with a shallow depth due to the faults activity in the South Arm of Sulawesi. The position of the source of the earthquake at a depth of 500 km - 800 km is at coordinates 119,55o - 120,15o E and 5,0o - 5,4o S. This position is located on the southern arm of Sulawesi mainland. This earthquake is associated with a trench the sea floor spreading in the Makassar Strait and the Gulf of Bone. The trenchs on subduction zone to characterize the lithosphere. Seismisitas activity shows a subduction zone of the sea floor spreading in the Makassar Strait and the Gulf of Bone. Seismisitas activity indicates two zones of sea-floor spreading which makes the southern arm of Sulawesi have compression (compression). It also indicates the southern Sulawesi geomorphology including the Jeneberang watershed is significantly influenced by active tectonics