A magnitude 5.5 earthquake of tectonic origin struck off the coast of La Union on Friday, September 19, 2025, at 3:52 a.m., according to Phivolcs.
The tremor's epicenter was located 52 kilometers west of Luna, La Union, at a depth of 20 kilometers.
The earthquake was felt across Luzon, with reported intensities including Intensity V in Luna and Bacnotan, La Union.
Intensity IV was recorded in various areas in Benguet and Mountain Province, as well as in the City of Baguio and Villasis, Pangasinan.
Instrumental intensities were also recorded in numerous other areas in Luzon.
No damage or casualties have been reported, but Phivolcs warned that aftershocks are likely.
The Mines and Geosciences Bureau (MGB) Cordillera had advised small-scale miners to cease entry into their mining tunnels and evacuate.
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