Reaktivitas Sesar Kaligarang, Semarang

Poedjoprajitno, S. (Pusat Survei Geologi, Jl. Diponegoro 57, Bandung)
Wahyudiono, J. (Pusat Survei Geologi, Jl. Diponegoro 57, Bandung)
Cita, A. (Pusat Survei Geologi, Jl. Diponegoro 57, Bandung)

Indonesian Journal on Geoscience
Vol 3, No 3 (2008)

http://dx.doi.org/10.17014/ijog.vol3no3.20082Kaligarang Fault which cuts across Semarang City in a north-south direction has been activated for long periods. During Tertiary time, the Kaligarang Fault experienced a dextral wrench movement, which was triggered by a tectonic activity during that time, with a maximum principal stress (σ 1) in a northeast - southwest direction. While on Quaternary time, this fault was reactivated as a sinistral wrench fault. Reactivation of this fault was caused by a principal stress (σ 2) in a north east - south last direction.