A magnitude 7.1 earthquake struck 38.3 km (23.8 mi) east-southeast of Ambunti in East Sepik Province, Papua New Guinea on 3 April 2023.

[1][2] The island of New Guinea lies within the complex zone of collision between the Australian and Pacific plates.

Within this overall setting, the active tectonics of northern Papua New Guinea is dominated by the effects of continuing collision between the Huon–Finisterre island arc terrane with the edge of the Australian continental margin.

[1] According to PAGER, the earthquake caused damaging shaking of intensities V-VII (Moderate-Very Strong) in the towns of Ambunti, Angoram, Wewak, Aitape, Porgera and Wabag, combining to a total population of about 1.12 million residents.

[17] Minor damage to buildings were reported in the neighboring provinces of Enga and Western Highlands.