Very strong mag. 6.1 earthquake - Bismarck Sea, 233 km northeast of Madang, Papua New Guinea, on Wednesday, 21 July 2021 at 14:26 (GMT)
Very strong mag. 6.1 earthquake - Bismarck Sea, 233 km northeast of Madang, Papua New Guinea, on 22 Jul 12:26 am (GMT +10)
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Very strong magnitude 6.1 earthquake at 10 km depth
21 Jul 14:34 UTC: First to report: GFZ after 9 minutes.
21 Jul 14:36: Magnitude recalculated from 5.7 to 5.6. Epicenter location corrected by 3.1 km (2 mi) towards NE.
21 Jul 16:22: Magnitude recalculated from 5.6 to 6.1.
21 Jul 14:36: Magnitude recalculated from 5.7 to 5.6. Epicenter location corrected by 3.1 km (2 mi) towards NE.
21 Jul 16:22: Magnitude recalculated from 5.6 to 6.1.
Local time at epicenter: 22 Jul 12:26 am (GMT +10)
Magnitude: 6.1
Depth: 10.0 km
Epicenter latitude / longitude: 3.39°S / 146.81°E
(Bismarck Sea, Papua New Guinea)Nearest volcano: Baluan (105 km / 65 mi)
Nearby towns and cities:
159 km (99 mi) SSW of Lorengau (Manus District) (pop: 5,810) --> See nearby quakes!
233 km (145 mi) NNE of Madang (pop: 27,400) --> See nearby quakes!
339 km (210 mi) NNE of Goroka (pop: 18,500) --> See nearby quakes!
353 km (219 mi) E of Wewak (pop: 18,200) --> See nearby quakes!
371 km (231 mi) N of Lae (pop: 76,300) --> See nearby quakes!
396 km (246 mi) NE of Hagen (Dei District) (pop: 33,600) --> See nearby quakes!
425 km (264 mi) N of Bulolo (pop: 16,000) --> See nearby quakes!
440 km (274 mi) WNW of Kimbe (Talasea District) (pop: 18,800) --> See nearby quakes!
465 km (289 mi) NE of Mendi (pop: 26,300) --> See nearby quakes!
678 km (421 mi) N of Port Moresby (pop: 283,700) --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds
28.4°C (83 F), humidity: 74%, wind: 4 m/s (7 kts) from E
Primary data source: GFZ (German Research Centre for Geosciences)
Overcast Clouds
28.4°C (83 F), humidity: 74%, wind: 4 m/s (7 kts) from EEstimated released energy: 8.9 x 1013 joules (24.8 gigawatt hours, equivalent to 21301 tons of TNT or 1.3 atomic bombs!) More info
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.
| Mag. | Depth | Location | Source |
| 6.1 | 10 km | Papua New Guinea: Bismarck Sea | GFZ |
| 5.9 | 10 km | Papua New Guinea: BISMARCK SEA | EMSC |
| 5.5 | 10 km | Papua New Guinea: Near Lae | RENASS |
| 5.7 | 10 km | Papua New Guinea: Bismarck Sea | BMKG |
| 6.0 | 8.7 km | 150 Km SSW of Lorengau, Papua New Guinea | USGS |
| 6.1 | 10 km | Papua New Guinea: Bismarck Sea | GeoAu |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Aftershocks
More info
Recorded aftershocks, latest first (1 quakes):- 21 Jul 2021 23:07 UTC| M 4.8 |10 km (6.2 mi) depth|26 km (16 mi) distance| USGS | Details
Earlier earthquakes in the same area
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