The RaspberryShake Citizen Seismograph Network reported a magnitude 5.1 earthquake in Papua New Guinea near Ambunti, Ambunti-Dreikikir, East Sepik Province, just 16 minutes ago. The earthquake struck early in the morning of Wednesday, April 27, 2022 at 5:08 a.m. local time at an intermediate depth of 126.7 km. The exact magnitude, epicenter and depth of the quake could be revised in the coming hours or minutes as seismologists review the data and refine their calculations, or as other agencies release their report.
Our monitoring service identified a second report from the Euro-Mediterranean Seismological Center (EMSC) which listed the quake at magnitude 5.3. Other agencies reported the same earthquake, including the German Geoscience Research Center (GFZ) at magnitude 5.3 and the National Seismic Monitoring Network (RéNaSS) at magnitude 5.4 in France.
Based on preliminary seismic data, the quake should not have caused significant damage, but was likely felt by many people as a slight vibration in the epicenter area.
Weak tremors could have been felt at Ambunti (pop. 2,100) located 22 km from the epicenter.
Other towns near the epicenter where the quake could have been felt as a very weak tremor include Aitape (pop. 5,500) located 111 km from the epicenter, Wewak (pop. 18,200) 121 km away and Wewak (pop. 18,200) 121 kilometers away.
VolcanoDiscovery will automatically update the magnitude and depth if these change and will follow up if other major earthquake news becomes available. If you are in the area, please let us know about your experience through our reporting mechanism, online or through our mobile app. This will help us provide more first-hand updates to anyone around the world who wants to learn more about this earthquake.

If you were or are still in this area during the earthquake help others with your comments and report it here.

Date hour : April 26, 2022 7:08:19 PM UTC –
Local time at epicenter: Wednesday April 27, 2022 at 05:08 (GMT +10)
Magnitude: 5.2
Depth: 120.1 km

Latitude / longitude of the epicenter: 4.013°S / 142.6293°E (East Sepik Province, Papua New Guinea)
Antipode: 4.013°N / 37.371°W
Closest volcano: Doma Peaks (218 km / 135 mi)

Nearby towns and villages:
31 km (19 mi) northwest of Ambunti (East Sepik) (pop: 2,070) –> See nearby earthquakes!
102 km (64 mi) SSE of Aitape (Sandaun) (pop: 5,550) –> See nearby earthquakes!
123 km (76 mi) WSW of Wewak (East Sepik) (pop: 18,200) –> See nearby earthquakes!
263 km (164 mi) NNW of Mendi (southern highlands) (pop: 26,300) –> See nearby earthquakes!
269 ​​km (167 mi) SE of Jayapura (Papua, Indonesia) (pop: 134,900) –> See nearby earthquakes!
271 km (169 mi) northwest of Hagen (Dei District, Western Highlands) (pop: 33,600) –> See nearby earthquakes!
272 km (169 mi) SE of Abepura (Papua, Indonesia) (pop: 62,200) –> See nearby earthquakes!
375 km (233 mi) WNW of madang (pop: 27,400) –> See nearby earthquakes!
787 km (489 mi) northwest of Puerto Moresby (National Capital District) (pop: 283,700) –> See nearby earthquakes!

Main data source: USGS (United States Geological Survey)

Estimated energy released: 4×10¹² joules (1.11 gigawatt hours, equivalent to 951 tonnes of TNT) | on seismic energy

Based on its magnitude, the fault that was active during the earthquake ruptured over an area of ​​approx. 16 kilometers² (= 6 square miles) as a first order estimate. The length of the rupture zone was therefore probably about 7 km (4 mi).
Aftershocks generally occur during the days and weeks following the earthquake at or near the same fault, at distances of up to approx. twice the length of the rupture zone.
The often largely linear arrangement of aftershock epicentres encompasses the main shock rupture zone (check on the map below to verify).

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