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Moderate mag. 5.2 earthquake - 15 km southwest of Aitape, West Sepik Province, Papua New Guinea, on Monday, Aug 1, 2022 at 8:27 am (GMT +10) -

Moderate mag. 5.2 earthquake - 15 km southwest of Aitape, West Sepik Province, Papua New Guinea, on Monday, Aug 1, 2022 at 8:27 am (GMT +10) Moderate mag. 5.2 earthquake - 15 km southwest of Aitape, West Sepik Province, Papua New Guinea, on Monday, Aug 1, 2022 at 8:27 am (GMT +10)

Moderate magnitude 5.2 earthquake at 34 km depth

31 Jul 22:37 UTC: First to report: GFZ after 9 minutes.
31 Jul 22:50: Now using data updates from USGS
1 Aug 00:04: Hypocenter depth recalculated from 35.0 to 33.9 km (from 22 to 21 mi). Epicenter location corrected by 3.1 km (1.9 mi) towards N.
Update Sun, 31 Jul 2022, 22:42

Moderate 4.9 quake hits near Aitape, Sandaun, Papua New Guinea

4.9 quake 1 Aug 8:27 am (GMT +10)
4.9 quake 1 Aug 8:27 am (GMT +10)
An earthquake of magnitude 4.9 occurred in the morning on Monday, August 1st, 2022, at 8:27 am local time near Aitape, Sandaun, Papua New Guinea, as reported by the German Research Centre for Geosciences (GFZ).
According to preliminary data, the quake was located at a shallow depth of 10 km. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the citizen-seismograph network of RaspberryShake, which listed it as a magnitude 4.9 earthquake as well. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 5.1.
Based on the preliminary seismic data, the quake was probably felt by many people in the area of the epicenter. It should not have caused significant damage, other than objects falling from shelves, broken windows, etc.
In Aitape (pop. 5,500) located 21 km from the epicenter, the quake should have been felt as light shaking.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Vanimo (pop. 11,200) located 122 km from the epicenter, and Vanimo (pop. 11,200) 122 km away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.

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Earthquake details

Date & timeJul 31, 2022 22:27:50 UTC -
Local time at epicenterMonday, Aug 1, 2022 at 8:27 am (GMT +10)
Depth33.9 km
Epicenter latitude / longitude3.2488°S / 142.2695°E (West Sepik Province, Papua New Guinea)
Antipode3.249°N / 37.731°W
Shaking intensityLight shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearby towns and cities15 km (9 mi) SW of Aitape (Sandaun) (pop: 5,550) | Show on map | Quakes nearby
125 km (77 mi) ESE of Vanimo (Sandaun) (pop: 11,200) | Show on map | Quakes nearby
155 km (96 mi) WNW of Wewak (East Sepik) (pop: 18,200) | Show on map | Quakes nearby
190 km (118 mi) ESE of Noordwijk (Papua, Indonesia) (pop: 134,900) | Show on map | Quakes nearby
196 km (122 mi) ESE of Abepura (Papua, Indonesia) (pop: 62,200) | Show on map | Quakes nearby
363 km (225 mi) NW of Hagen (Dei District, Western Highlands) (pop: 33,600) | Show on map | Quakes nearby
878 km (546 mi) NW of Port Moresby (National Capital) (pop: 283,700) | Show on map | Quakes nearby
Weather at epicenter at time of quakeOvercast Clouds 27.5°C (81 F), humidity: 74%, wind: 1 m/s (2 kts) from SE
Estimated seismic energy released4 x 1012 joules (1.11 gigawatt hours, equivalent to 951 tons of TNT) | about seismic energy
Show interactive Map
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
5.234 km15 Km SW of Aitape, Papua New GuineaUSGS
5.240 kmPapua New Guinea: NEAR N COAST OF NEW GUINEA, PNG.EMSC
5.234 kmPapua New Guinea: Near N. Coast of New Guinea, PNG.RaspberryShake
5.184 kmPapua New Guinea: Near JayapuraRENASS
4.910 km17 Km SSW of Aitape, Papua New GuineaGFZ
5.110 kmPapua New Guinea: Near N. Coast of New Guinea, PNG.GeoAu


Seismic station: Port Moresby, New Guinea (PMG/IU network) | Distance from quake: 872 km / 542 mi | Show on map | Station Info
Seismic station Port Moresby, New Guinea: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.


[More info]

Recorded aftershocks, latest first (0 quake)

So far, no aftershocks have been registered.

Earlier earthquakes in the same area

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