- Samoa Islands Region on Friday, 6 April 1990 at 06:09 (GMT)

- Samoa Islands Region on Friday, 6 April 1990 at 06:09 (GMT)

Strong magnitude 5.6 earthquake at 33 km depth

Date & time: 6 Apr 1990 06:09:03 UTC
Magnitude: 5.6
Depth: 33.0 km
Epicenter latitude / longitude: 15.152°S / 172.126°W (Samoa)
Nearest volcano: Upolu (142 km / 88 mi)
Nearby towns and cities:
147 km (91 mi) S of Mulifanua (pop: 4,510) --> See nearby quakes!
150 km (93 mi) S of Fasito‘outa (pop: 2,100) --> See nearby quakes!
152 km (94 mi) SSW of Apia (pop: 40,400) --> See nearby quakes!
153 km (95 mi) SSW of Lufilufi (pop: 1,070) --> See nearby quakes!
176 km (110 mi) WSW of Tāfuna (Tualauta, American Samoa) (pop: 11,000) --> See nearby quakes!
181 km (113 mi) WSW of Pago Pago (Ma'Oputasi, American Samoa) (pop: 11,500) --> See nearby quakes!
190 km (118 mi) SSE of Asau (pop: 6,640) --> See nearby quakes!
191 km (119 mi) S of Safotu (pop: 1,210) --> See nearby quakes!
484 km (300 mi) ESE of Mata-Utu (Hahake, Wallis & Futuna) (pop: 1,200) --> See nearby quakes!
493 km (307 mi) NNW of Alofi (Niue) (pop: 624) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 1.6 x 1013 joules (4.4 gigawatt hours, equivalent to 3788 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.
MagnitudeDepthLocationSource
M 5.633 kmSamoa Islands regionUSGS
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 (0 quakes):
So far, no aftershocks have been registered.
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Earlier earthquakes in the same area

- Samoa Islands Region on Friday, 6 April 1990 at 06:09 (GMT)
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