- South Pacific Ocean, 229 km southwest of Apia, Tuamasaga, Samoa, on Thursday, 29 November 2001 at 19:37 (GMT)

- South Pacific Ocean, 229 km southwest of Apia, Tuamasaga, Samoa, on Thursday, 29 November 2001 at 19:37 (GMT)

Strong magnitude 5.4 earthquake at 33 km depth

Date & time: 29 Nov 2001 19:37:34 UTC
Magnitude: 5.4
Depth: 33.0 km
Epicenter latitude / longitude: 15.097°S / 173.449°W (South Pacific Ocean, Samoa)
Nearest volcano: West Mata (32 km / 20 mi)
Nearby towns and cities:
193 km (120 mi) SW of Vailoa (pop: 769) --> See nearby quakes!
196 km (122 mi) SSW of Asau (pop: 6,640) --> See nearby quakes!
207 km (129 mi) SW of Mulifanua (pop: 4,510) --> See nearby quakes!
215 km (134 mi) SSW of Safotu (pop: 1,210) --> See nearby quakes!
216 km (134 mi) SW of Fasito‘outa (pop: 2,100) --> See nearby quakes!
229 km (142 mi) SW of Apia (pop: 40,400) --> See nearby quakes!
241 km (150 mi) SW of Lufilufi (pop: 1,070) --> See nearby quakes!
309 km (192 mi) WSW of Pago Pago (Ma'Oputasi, American Samoa) (pop: 11,500) --> See nearby quakes!
357 km (222 mi) SE of Mata-Utu (Hahake, Wallis & Futuna) (pop: 1,200) --> See nearby quakes!
578 km (359 mi) NW of Alofi (Niue) (pop: 624) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 7.9 x 1012 joules (2.21 gigawatt hours, equivalent to 1898 tons of TNT or 0.1 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 5.433 kmTonga (Samoa)USGS
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 (3 quakes):
  • 28 Jan 2002 15:49 UTC
    | M 4.8 |
    33 km (20.5 mi) depth
    |
    8 km (5 mi) distance
    | USGS | Details
  • 08 Jan 2002 07:23 UTC
    | M 4.4 |
    33 km (20.5 mi) depth
    |
    6 km (4 mi) distance
    | USGS | Details
  • 30 Nov 2001 06:15 UTC
    | M 5.2 |
    33 km (20.5 mi) depth
    |
    22 km (14 mi) distance
    | USGS | Details

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Earlier earthquakes in the same area

- South Pacific Ocean, 229 km southwest of Apia, Tuamasaga, Samoa, on Thursday, 29 November 2001 at 19:37 (GMT)
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