Weak tectonic quakes jolt Aurora province

A series of mild tectonic earthquakes rattled parts of Aurora province early Wednesday, October 29, 2025, with the strongest registering a magnitude 4, the Philippine Institute of Volcanology and Seismology (Phivolcs) said. INQUIRER FILES
BALER, Aurora – A series of mild tectonic earthquakes rattled parts of Aurora province early Wednesday, with the strongest registering a magnitude 4, the Philippine Institute of Volcanology and Seismology (Phivolcs) said.
READ: Magnitude 4 earthquake jolts Casiguran, Aurora
The strongest tremor, at 12:54 a.m., was located 9 km. northwest of San Luis, Aurora, at a depth of 6 km. Phivolcs reported Instrumental Intensity II in San Luis, Aurora, and Maddela, Quirino.
The tremor was preceded by a magnitude 3 quake at 12:24 a.m., located 41 km. southeast of Baler at a depth of 3 km, which registered Instrumental Intensity I in Dingalan, Aurora.
Three subsequent tremors were recorded:
- A magnitude 3.2 quake at 2:13 a.m., 36 km. southeast of Baler.
- A magnitude 3.0 quake at 2:15 a.m., 41 km. southeast of San Luis.
- A magnitude 1.7 quake at 5:27 a.m., 44 km. southeast of Baler.
Phivolcs said the quakes were tectonic in origin and caused no damage. No casualties or significant incidents have been reported.
Local authorities are monitoring the situation and have urged residents to stay alert and follow official advisories. (PNA)/coa