ANALISIS AREA RAWAN LONGSOR MENGGUNAKAN DATA MIRKOSEISMIK DI DESA KARANGKOBAR, KECAMATAN KARANGKOBAR KABUPATEN BANJARNEGARA; ANALYSIS OF LANDSLIDE VULNERABLE AREA USING MICROSEISMIC DATA IN KARANGKOBAR VILLAGE, KARANGKOBAR DISTRICT BANJARNEGARA REGENCY

Fitrianto, Mohammad T, Imam Suyanto

2015 | Skripsi | FMIPA

Landslide is a common disaster in Indonesia. Some of case which had occured in Ciregol village, Brebes regency. This incident led to the damage of Tegal-Purwokerto main road. Another case which had occured in Jemblung, Sampang village, Banjarnegara regency. This event caused the damage of the settlement and more than a hundred people died. An effort is neccessary in case to reduce the effect of landslide. Microseismic method is applied to determine the vulnerable area. The aquisition of microseismic method had been done on 1 - 6 August 2015 in Karangkobar village, Banjarnegara regency. This data was processed using HVSR method to obtain the parameter of dominant frequency and amplification. This parameter is used to calculate shear strain which would be used to analyze with other parameters, slope and land-usage, to classified the vulnerable area of landslide in Karangkobar village. The analysis obtain the information that the North and South of the research area is include into vulnerable area.

Kata Kunci : HVSR; microseismic; landslide; shear strain