Major magnitude 7.0 earthquake - 22 km northwest of Nakaza Island, Solomon Islands, on Monday, August 17, 1959 at 21:04 GMT

Major magnitude 7.0 earthquake - 22 km northwest of Nakaza Island, Solomon Islands, on Monday, August 17, 1959 at 21:04 GMT Major magnitude 7.0 earthquake - 22 km northwest of Nakaza Island, Solomon Islands, on Monday, August 17, 1959 at 21:04 GMT

Major magnitude 7.0 earthquake at 25 km depth

Earthquake details

Date & timeAug 17, 1959 21:04:48 UTC
Local time at epicenter
StatusConfirmed
Magnitude7
Depth25.0 km
Epicenter latitude / longitude7.776°S / 156.328°E (Solomon Sea, Solomon Islands)
Antipode7.776°N / 23.672°W
Shaking intensityVery strong shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoNonda (32 km / 20 mi)
Nearby towns and cities67 km (42 mi) WNW of Gizo (New Georgia Group) (pop: 6,150) | Show on map | Quakes nearby
134 km (83 mi) SSE of Buin (Papua New Guinea) (pop: 750) | Show on map | Quakes nearby
187 km (116 mi) SSE of Panguna (Papua New Guinea) (pop: 2,920) | Show on map | Quakes nearby
191 km (119 mi) SSE of Arawa (Papua New Guinea) (pop: 40,300) | Show on map | Quakes nearby
362 km (225 mi) W of Buala (pop: 2,700) | Show on map | Quakes nearby
429 km (267 mi) WNW of Malango (pop: 10,500) | Show on map | Quakes nearby
439 km (273 mi) WNW of Honiara (pop: 56,300) | Show on map | Quakes nearby
Estimated seismic energy released2 x 1015 joules (554 gigawatt hours, equivalent to 4.8 x 105 tons of TNT or 29.8 atomic bombs!) | about seismic energy
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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
7.025 kmSolomon IslandsUSGS
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.
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Aftershocks

[More info]

Recorded aftershocks, latest first (4 quakes)

Date and timeMag
Depth
LocationDetails
Feb 6, 1961 21:45
62 years ago
6.5

45 km
65 km S of Arawa, Bougainville, Papua New GuineaMore
Oct 4, 1960 09:51
62 years ago
5.9

35 km
Solomon IslandsMore
Feb 24, 1960 21:37
63 years ago
6.2

50 km
Alu Island, Solomon IslandsMore
Nov 5, 1959 17:38
63 years ago
5.9

15 km
Solomon IslandsMore

Earlier earthquakes in the same area

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