Moderate mag. 5.9 earthquake - South Pacific Ocean on Tuesday, 23 April 2019 at 14:20 (GMT)

Moderate mag. 5.9 earthquake  - South Pacific Ocean on Tuesday, 23 April 2019 at 14:20 (GMT)

Moderate magnitude 5.9 earthquake at 379 km depth

23 Apr 14:27 UTC: First to report: GFZ after 7 minutes.
Apr 23 14:30: Magnitude recalculated from 5.6 to 5.7.
Hypocenter depth recalculated from 371.0 to 379.0 km.
Apr 23 20:32: Magnitude recalculated from 5.7 to 5.9.
Date & time: 23 Apr 2019 14:20:16 UTC
Magnitude: 5.9
Depth: 379.0 km
Epicenter latitude / longitude: 24.79°S / 178.75°W (international territory)
Nearest volcano: Unnamed 24.8°S/177.02°W (175 km / 109 mi)
Nearby towns and cities:
545 km (339 mi) SW of Nuku'alofa (Tonga) (pop: 22,400) --> See nearby quakes!
545 km (339 mi) SW of Nuku‘alofa (Tonga) (pop: 22,400) --> See nearby quakes!
547 km (340 mi) SW of ‘Ohonua (Ohonua, Tonga) (pop: 1,240) --> See nearby quakes!
555 km (345 mi) SW of Kolonga (Tonga) (pop: 1,100) --> See nearby quakes!
Primary data source: GFZ (German Research Centre for Geosciences)
Estimated released energy: 4.5 x 1013 joules (12.4 gigawatt hours, equivalent to 10676 tons of TNT or 0.7 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.
M 5.9379 kmSouth of Fiji IslandsGFZ
M 5.9354 kmSouth Of Fiji IslandsEMSC
M 5.6428 kmNew ZealandGEONET (NZ)
M 5.9352 kmSouth of Fiji IslandsBMKG
M 5.8388 kmSouth of Fiji IslandsGeoAu
M 6.0394 kmTonga [Sea]INGV
M 6.0386 kmSouth of the Fiji IslandsUSGS

User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Christchurch / Weak shaking (MMI III) : Very slight rattle of my door and computer for about 2 seconds, then noticed light swinging slightly. There have been two more small shakes within about 15 minutes of the first (not sure if they are local to NZ).
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Aftershocks of the 5.9 quake South Pacific Ocean, Tonga, 23 April 2019 14:20 GMT

More info
Recorded aftershocks, latest first (1 quakes):
  • 11 Jun 2019 04:28 UTC
    | M 4.2 |
    494.8 km (307.5 mi) depth
    47 km (29 mi) distance
    | GEONET (NZ) | Details

Earlier earthquakes in the same area

Moderate mag. 5.9 earthquake - South Pacific Ocean, Tonga, on Tuesday, 23 April 2019 at 14:20 (GMT)
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