Magnitude 4.2 earthquake in Philippine waters, 25 km W of Dalupiri Island, Cagayan — October 31, 2026

At 9:31 p.m. on Saturday, Oct. 31, a magnitude 4.2 earthquake struck off the west coast of Luzon, about 25 kilometers west of Dalupiri Island, Cagayan, according to the Philippine Institute of Volcanology and Seismology (Phivolcs).

The quake struck at a depth of 17 kilometers.

• Magnitude: M4.2
• Time: October 31, 2026, 9:31 PM PHT
• Depth: 17 km
• Location: Philippine waters, 25 km W of Dalupiri Island, Cagayan (19.08°N, 120.97°E)

Nearby earthquakes

The strongest other Philippine earthquakes within 100 km and 3 days before or after this one (up to five), including possible foreshocks and aftershocks.

• M4.1 Philippine waters, 63 km NNW of Calayan, Cagayan, 4 km deep, 87 km away, November 2, 2026 2:42 AM PHT
• M3.6 Philippine waters, 47 km NW of Calayan, Cagayan, 18 km deep, 60 km away, November 2, 2026 2:48 AM PHT
• M3.0 Philippine waters, 49 km NNW of Calayan, Cagayan, 22 km deep, 68 km away, November 2, 2026 3:17 AM PHT
• M4.2 Philippine waters, 53 km N of Calayan, Cagayan, 19 km deep, 87 km away, November 2, 2026 4:42 PM PHT
• M3.7 Philippine waters, 62 km NW of Calayan, Cagayan, 12 km deep, 69 km away, November 2, 2026 8:40 PM PHT

Towns that likely felt it

Estimated intensity in the nearest towns, from the magnitude, depth and distance. These are estimates, not reports.

• Aparri, Cagayan: Intensity IV (49 km from the epicenter)
• Calayan, Cagayan: Intensity III (58 km from the epicenter)
• Pagudpud, Ilocos Norte: Intensity III (59 km from the epicenter)
• Claveria, Cagayan: Intensity III (59 km from the epicenter)
• Santa Praxedes, Cagayan: Intensity III (61 km from the epicenter)
• Sanchez-Mira, Cagayan: Intensity III (67 km from the epicenter)
• Dumalneg, Ilocos Norte: Intensity III (69 km from the epicenter)
• Adams, Ilocos Norte: Intensity III (70 km from the epicenter)

Estimated intensity in Manila

Not felt (MMI 1), 498 km from the epicenter.