OPTIMAL BENCH MARK DISTRIBUTION TO MONITOR SOUTHERN SEGMENT OF SUMATRAN FAULT

Satrio Muhammad Alif

Abstract

The southern segment of a Sumatran fault zone was one of the sources of earthquakes in Lampung Province. The source of hazard came from stress accumulation of crust, which can be derived from movement of bench mark in surface. Lack of research in southern segment was caused by small numbers of monitoring bench mark. This research  shown optimal monitoring bench mark distribution by considering existing bench mark and location which is decent and representative to monitor Sumatran Fault Zone movement by considering on its position relative to Sumatran Fault Zone, earthquake history, Digital Elevation Model and land use. Decent location was determined by overlaying land use and slope processed from Digital Elevation Model. Representative location was determined by taking into account the distance to Sumatran Fault Zone and earthquake history. Very decent location is around 10.5 percent of the total area. Very representative location is around 44.5 percent of the total area. There are total 15 planned bench marks location to make southern Segment of Sumatran Fault Zone monitoring bench mark more optimal.

Keywords

Sumatran Fault Zone, Bench Mark, Geographic Information System, Land Use

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References

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DOI: https://doi.org/10.20961/ge.v5i2.34660

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