The earthquake that shakes parts of Mindanao on Wednesday is first reported as a magnitude 7 event but is later downgraded by the Philippine Institute of Volcanology and Seismology (Phivolcs). Earlier bulletins from Phivolcs and reports from other seismology sources cite a magnitude 7 quake striking the Sarangani area around 12:13 p.m. The initial reports place the epicenter southeast of Sarangani town in Davao Occidental, with a shallow depth near 10–13 kilometers. One Phivolcs update later records the earthquake at magnitude 6.4. In that bulletin, Phivolcs lists the epicenter about 29 kilometers southwest of Sarangani town and gives a depth of 13 kilometers, with reported intensities including Intensity V in Glan and Sarangani and Intensity IV in nearby areas such as Kiamba, Malungon and Alabel. Other coverage also notes that earlier estimates differed, including a German Research Center for Geosciences (GFZ) report citing a magnitude 6.3 with a depth around 10 kilometers. Authorities say damage is not expected based on the available information.