Moderate mag. 5.4 earthquake - Tonga (Samoa) on Friday, 5 October 2001 at 17:54 (GMT)

Moderate mag. 5.4 earthquake - Tonga (Samoa) on Friday, 5 October 2001 at 17:54 (GMT)

Moderate magnitude 5.4 earthquake at 33 km depth

Date & time: 5 Oct 2001 17:54:46 UTC
Magnitude: 5.4
Depth: 33.0 km
Epicenter latitude / longitude: 15.225°S / 173.636°W (Samoa)
Nearest volcano: West Mata (19 km / 12 mi)
Nearby towns and cities:
83 km (52 mi) N of Hihifo (Tonga) (pop: 815) --> See nearby quakes!
217 km (135 mi) SW of Vailoa (pop: 769) --> See nearby quakes!
218 km (135 mi) SSW of Asau (pop: 6,640) --> See nearby quakes!
232 km (144 mi) SW of Mulifanua (pop: 4,510) --> See nearby quakes!
238 km (148 mi) SSW of Safotu (pop: 1,210) --> See nearby quakes!
241 km (150 mi) SW of Fasito‘outa (pop: 2,100) --> See nearby quakes!
254 km (158 mi) SW of Apia (pop: 40,400) --> See nearby quakes!
266 km (165 mi) SW of Lufilufi (pop: 1,070) --> See nearby quakes!
329 km (204 mi) WSW of Tāfuna (Tualauta, American Samoa) (pop: 11,000) --> See nearby quakes!
333 km (207 mi) WSW of Pago Pago (Ma'Oputasi, American Samoa) (pop: 11,500) --> 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 of the 5.4 quake Tonga (Samoa) 5 October 2001 17:54 GMT

More info
Recorded aftershocks, latest first (3 quakes):
  • 30 Nov 2001 06:15 UTC
    | M 5.2 |
    33 km (20.5 mi) depth
    |
    13 km (8 mi) distance
    | USGS | Details
  • 29 Nov 2001 19:37 UTC
    | M 5.4 |
    33 km (20.5 mi) depth
    |
    25 km (15 mi) distance
    | USGS | Details
  • 11 Nov 2001 00:10 UTC
    | M 4.6 |
    33 km (20.5 mi) depth
    |
    27 km (17 mi) distance
    | USGS | Details

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Earlier earthquakes in the same area

Moderate mag. 5.4 earthquake - Tonga (Samoa) on Friday, 5 October 2001 at 17:54 (GMT)
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