Philippines: Magnitude-5.3 offshore earthquake occurs east of Luzon April 23

Event

A magnitude-5.3 offshore earthquake occurred in the Philippine Sea off Luzon at around 17:19 April 23. The epicenter was about 48 km (28 miles) north-northwest of Dicabisagan, Isabela Province. The tremor occurred at a depth of about 34 km (21 miles), and weak-to-light shaking was probably felt in parts of northern Luzon. There have been no initial reports of damage or casualties as a result of the earthquake, and significant damage is unlikely. It could take several hours until authorities can conduct comprehensive damage assessments, especially in remote areas. Aftershocks are possible over the coming days. The event has not prompted any tsunami advisories.

Officials may temporarily shut down transportation infrastructure in the tremor zone to check for damage. Minor disruptions could occur during shutdowns, but service will likely resume quickly if no damage is found. Utility outages are possible, particularly near the earthquake's epicenter.

Advice

Out of an abundance of caution, consider vacating multistory buildings where shaking occurred until authorities confirm their structural integrity. Monitor and plan for aftershocks.