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Moderate mag. 5.4 earthquake - south of the Kermadec Islands on 28 Sep 12:17 pm (GMT -12)

Moderate mag. 5.4 earthquake  - south of the Kermadec Islands on 28 Sep 12:17 pm (GMT -12)
29 Sep 00:21 UTC: First to report: GEONET (NZ) after 3 minutes.
29 Sep 00:25: Magnitude recalculated from 5.3 to 5.4. Hypocenter depth recalculated from 30.0 to 33.0 km (from 18.6 to 21 mi). Epicenter location corrected by 22 km (13.4 mi) towards NNW.
Date & time: 2020-09-29 12:17:40 UTC
Local time at epicenter: 28 Sep 12:17 pm (GMT -12)
Magnitude: 5.4
Depth: 33.0 km
Epicenter latitude / longitude: 33.56252°S / 178.22475°W (New Zealand)
Nearest volcano: Volcano W (232 km / 144 mi)
Weather at epicenter at time of quake:
Overcast Clouds 15.8°C (60 F), humidity: 66%, wind: 11 m/s (21 kts) from W
Primary data source: GEONET (NZ)
Estimated released energy: 7.9 x 1012 joules (2.21 gigawatt hours, equivalent to 1898 tons of TNT or 0.1 atomic bombs!) [learn more]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

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.
TimeMag. / DepthLocationSource
2020-09-29 00:17:40 UTC
28 Sep 12:17 pm (GMT -12)
M 5.4 / 33 kmsouth of the Kermadec IslandsGEONET (NZ)
2020-09-29 00:17:35 UTCM 5.0 / 10 kmSouth of the Kermadec Islands, New ZealandUSGS
2020-09-29 00:17:34 UTCM 5.2 / 10 kmSouth Of Kermadec Islands, New ZealandEMSC
2020-09-29 00:18:00 UTCM 4.8 / 168 kmSouth of Kermadec Islands, New ZealandBMKG
2020-09-29 00:17:38 UTCM 5.2 / 55 kmSouth of Kermadec IslandsGeoAu
2020-09-29 00:17:40 UTCM 5.1 / 10 kmSouth of Kermadec Islands, New ZealandGFZ

User reports for this quake (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
New plymouth (923.6 km SW of epicenter) [Map] / not felt (reported through our app)

Aftershocks of the 5.4 quake south of the Kermadec Islands 28 Sep 12:17 pm (GMT -12)

More info
Recorded aftershocks, latest first (2 quakes):
  • 05 Oct 2020 09:49 UTC
    | M 3.8 |
    264.3 km (164.2 mi) depth
    |
    14 km (9 mi) distance
    | GEONET (NZ) | Details
  • 04 Oct 2020 12:55 UTC
    | M 4.2 |
    33 km (20.5 mi) depth
    |
    21 km (13 mi) distance
    | GEONET (NZ) | Details

Earlier earthquakes in the same area since 1900

Moderate mag. 5.4 earthquake - south of the Kermadec Islands on 28 Sep 12:17 pm (GMT -12)

Map of earlier quakes

 

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