Figure 4 Trace of suspected fault responsible for the two 2022 Abra earthquakes of July 25 (magnitude-7.0) and October 25 (magnitude-6.4), determined from a 3-D rendering of earthquake hypocenters of the mainshocks and their aftershocks. Fault plane is formed by connecting the NNE-striking, ESE-dipping Vigan-Aggao Fault and the NE-striking, SE-dipping South Solsona Fault. Focal mechanism solutions shown for earthquakes with magnitudes greater than 4.5. 3-D rendering using QGIS. See text for discussion. Credit: Aurelio, Catugas, Ramirez, Aurelio, Lagmay.