Ekarsti, A. K.; Pramumijoyo, S.; Marliyani, G. I.; Setianto, A.; Karnawati, D. ANALYZING RECENT SEISMIC ACTIVITY OF THE OPAK FAULT SYSTEM IN CENTRAL JAVA, INDONESIA, FROM 2009 TO 2021. INTERNATIONAL JOURNAL OF GEOMATE 2023, 25, 87-97.