Strong mag. 5.5 earthquake - 53 km south of Popondetta, Sohe, Northern Province, Papua New Guinea, on Friday, 12 August 1977 at 21:45 (GMT)

Strong mag. 5.5 earthquake - 53 km south of Popondetta, Sohe, Northern Province, Papua New Guinea, on Friday, 12 August 1977 at 21:45 (GMT)

Strong magnitude 5.5 earthquake at 33 km depth

1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Date & time: 12 Aug 1977 21:45:37 UTC
Magnitude: 5.5
Depth: 33.0 km
Epicenter latitude / longitude: 9.244°S / 148.28°E (Northern Province, Papua New Guinea)
Nearest volcano: Musa River (18 km / 11 mi)
Nearby towns and cities:
53 km (33 mi) S of Popondetta (Sohe) (pop: 28,200) --> See nearby quakes!
72 km (45 mi) SE of Kokoda (Sohe) (pop: 6,200) --> See nearby quakes!
127 km (79 mi) ENE of Port Moresby (National Capital) (pop: 283,700) --> See nearby quakes!
273 km (170 mi) SE of Wau (Morobe) (pop: 14,600) --> See nearby quakes!
290 km (180 mi) SE of Bulolo (Morobe) (pop: 16,000) --> See nearby quakes!
314 km (195 mi) SSE of Lae (Morobe) (pop: 76,300) --> See nearby quakes!
459 km (285 mi) SSW of Kimbe (Talasea District, West New Britain) (pop: 18,800) --> See nearby quakes!
475 km (295 mi) SE of Goroka (Eastern Highlands) (pop: 18,500) --> See nearby quakes!
525 km (326 mi) SSE of Madang (pop: 27,400) --> See nearby quakes!
584 km (363 mi) SE of Hagen (Dei District, Western Highlands) (pop: 33,600) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.1 x 1013 joules (3.12 gigawatt hours, equivalent to 2682 tons of TNT or 0.2 atomic bombs!) More info
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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.
Mag.DepthLocationSource
5.533 kmeastern New Guinea region, Papua New GuineaUSGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

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 yet. If you felt it be the first to report it!
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Aftershocks

More info
Recorded aftershocks, latest first (1 quakes):
  • 13 Aug 1977 00:00 UTC
    | M 4.7 |
    33 km (20.5 mi) depth
    |
    14 km (9 mi) distance
    | USGS | Details

Earlier earthquakes in the same area

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