Relokasi Hiposenter Data Microearthquake (MEQ) Menggunakan Prinsip Double Difference (DD) untuk Identifikasi Struktur di Lapangan Panas Bumi Muaralaboh Microearthquake (MEQ) ; Relocation Using Double Difference (DD) Algorithm for Structure Identification in Muaralaboh Geothermal Field

Hidayat, Rizki, Sismanto

2016 | Skripsi | FMIPA

Microearthquake (MEQ) data recording from two surveys at Muaralaboh Geothermal Field show different seismic characteristics. The first survey show a natural event dan the second survey show some events of drilling activity. Two surveys were run in midle of September 2010 until beginning of April 2011 and the second survey was in midle of October 2012 until end of 2013. Based on the set of 2863 event that have been relocated with ph2dt and further refined with HypoDD used 7th iteration and make 0.1% error. Hypocenter relocation from first survey show two fracture orientations east-west and northwest-southeast. The last surveys show a lineament fracture orientation predominantly northeast-southwest. The structure’s are a new structure that located in mayority the depth below of 4 km from surface of the earth.

Kata Kunci : microearthquake; natural event; drillling; double difference; Muaralaboh