Moderate mag. 5.3 earthquake - Tonga on Saturday, 3 April 2004 at 09:00 (GMT)

Moderate mag. 5.3 earthquake - Tonga on Saturday, 3 April 2004 at 09:00 (GMT)

Moderate magnitude 5.3 earthquake at 288 km depth

Date & time: 3 Apr 2004 09:00:46 UTC
Magnitude: 5.3
Depth: 288.3 km
Epicenter latitude / longitude: 16.156°S / 174.847°W (Tonga)
Nearest volcano: Niuafo'ou (104 km / 65 mi)
Nearby towns and cities:
115 km (71 mi) WSW of Hihifo (pop: 815) --> See nearby quakes!
292 km (182 mi) NNW of Neiafu (pop: 4,320) --> See nearby quakes!
350 km (218 mi) SSE of Mata-Utu (Hahake, Wallis & Futuna) (pop: 1,200) --> See nearby quakes!
377 km (234 mi) SW of Asau (Samoa) (pop: 6,640) --> See nearby quakes!
398 km (247 mi) SW of Mulifanua (Samoa) (pop: 4,510) --> See nearby quakes!
410 km (255 mi) N of Pangai (pop: 1,740) --> See nearby quakes!
420 km (261 mi) SW of Apia (Samoa) (pop: 40,400) --> See nearby quakes!
487 km (303 mi) WSW of Tāfuna (Tualauta, American Samoa) (pop: 11,000) --> See nearby quakes!
491 km (305 mi) WSW of Pago Pago (Ma'Oputasi, American Samoa) (pop: 11,500) --> See nearby quakes!
556 km (345 mi) N of Nuku'alofa (pop: 22,400) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 5.6 x 1012 joules (1.56 gigawatt hours, equivalent to 1344 tons of TNT) 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 5.3288 kmTongaUSGS
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 5.3 quake Tonga 3 April 2004 09:00 GMT

More info
Recorded aftershocks, latest first (1 quakes):
  • 18 Apr 2004 20:25 UTC
    | M 4.5 |
    10 km (6.2 mi) depth
    |
    25 km (16 mi) distance
    | USGS | Details

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Earlier earthquakes in the same area

Moderate mag. 5.3 earthquake - Tonga on Saturday, 3 April 2004 at 09:00 (GMT)
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