Very strong mag. 6.4 earthquake - South Pacific Ocean, New Zealand, on Tuesday, Aug 31, 2021 at 2:52 pm (GMT +12) -

Very strong mag. 6.4 earthquake - South Pacific Ocean, New Zealand, on Tuesday, Aug 31, 2021 at 2:52 pm (GMT +12) Very strong mag. 6.4 earthquake - South Pacific Ocean, New Zealand, on Tuesday, Aug 31, 2021 at 2:52 pm (GMT +12)

Very strong magnitude 6.4 earthquake at 33 km depth

31 Aug 02:59 UTC: First to report: GEONET (NZ) after 6 minutes.
31 Aug 03:05: Magnitude recalculated from 6.1 to 6.0. Epicenter location corrected by 15 km (9.2 mi) towards SW.
31 Aug 04:21: Magnitude recalculated from 6.0 to 6.4. Hypocenter depth recalculated from 5.0 to 33.0 km (from 3.1 to 21 mi). Epicenter location corrected by 17 km (10.3 mi) towards WSW.

Earthquake details

Date & timeAug 31, 2021 02:52:51 UTC -
Local time at epicenterTuesday, Aug 31, 2021 at 2:52 pm (GMT +12)
StatusConfirmed
Magnitude6.4
Depth33.0 km
Epicenter latitude / longitude30.067°S / 177.05118°W (South Pacific Ocean, New Zealand)
Antipode30.067°N / 2.949°E
Shaking intensityStrong shaking near epicenter
Felt2 reports
Primary data sourceGEONET (NZ) (Earthquake Commission and Geological Survey, New Zealand)
Nearest volcanoRaoul Island (133 km / 83 mi)
Nearby towns and cities
Weather at epicenter at time of quakeClear Sky 17.9°C (64 F), humidity: 73%, wind: 3 m/s (7 kts) from SW
Estimated seismic energy released2.5 x 1014 joules (69.8 gigawatt hours, equivalent to 60036 tons of TNT or 3.8 atomic bombs!) | about seismic energy
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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.
Mag.DepthLocationSource
6.433 kmNew ZealandGEONET (NZ)
6.410 kmKermadec Islands, New ZealandGFZ
6.316 kmKermadec Islands, New ZealandUSGS
6.310 kmKERMADEC ISLANDS, NEW ZEALANDEMSC
6.110 kmNew Zealand: Near AucklandRENASS
6.0137 kmKermadec Islands, New ZealandBMKG
6.26.7 kmKermadec Islands, New ZealandGeoAu
6.565 kmKermadec Islands, New Zealand [Sea: New Zealand]INGV

User reports for this quake (7)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Translate
Auckland (1069.1 km SW of epicenter) [Map] / not felt
Hicks Bay (944.1 km SSW of epicenter) [Map] / not felt : Not felt  
Kerikeri Northland NZ (1019.8 km SW of epicenter) [Map] / not felt
Auckland / not felt
One Tree Point, bream bay, Whangarei / not felt
East Cape Lighthouse (939.5 km SSW of epicenter) [Map] / Weak shaking (MMI III) / 1-2 s
Ohope (1032.4 km SSW of epicenter) [Map] / Weak shaking (MMI III) / vertical swinging (up and down) / 30-60 s (reported through our app)
Volcanoes & Earthquakes - new app for Android

Aftershocks

[More info]

Recorded aftershocks, latest first (118 quakes)

Date and timeMag
Depth
LocationDetails
Feb 25, 2022 13:21
23 weeks ago
4.6

361 km
South Pacific Ocean, New ZealandMore
Feb 24, 2022 16:18
24 weeks ago
4.9

33 km
New ZealandMore
Feb 23, 2022 11:52
24 weeks ago
4.8

12 km
South Pacific Ocean, New ZealandMore
Feb 19, 2022 13:28
24 weeks ago
3.2

194 km
South Pacific Ocean, New ZealandMore
Feb 19, 2022 04:47
24 weeks ago
5.1

10 km
South Pacific Ocean, New ZealandMore
Feb 16, 2022 06:35
25 weeks ago
4.8

232 km
South Pacific Ocean, New ZealandMore
Feb 12, 2022 17:13
25 weeks ago
4.9

22 km
South Pacific Ocean, New ZealandMore
Feb 11, 2022 04:01
25 weeks ago
4.6

33 km
South Pacific Ocean, New ZealandMore
Feb 7, 2022 03:41
26 weeks ago
5.5

33 km
South Pacific Ocean, New ZealandMore
Feb 6, 2022 12:25
26 weeks ago
4.9

33 km
South Pacific Ocean, New ZealandMore
Feb 4, 2022 21:32
26 weeks ago
5.0

33 km
South Pacific Ocean, New ZealandMore
Feb 4, 2022 06:18
26 weeks ago
5.0

10 km
South Pacific Ocean, New ZealandMore
Feb 4, 2022 03:25
26 weeks ago
5.2

100 km
South Pacific Ocean, New ZealandMore
Feb 4, 2022 03:17
26 weeks ago
5.3

100 km
South Pacific Ocean, New ZealandMore
Feb 4, 2022 01:55
26 weeks ago
4.9

33 km
South Pacific Ocean, New ZealandMore
Feb 3, 2022 10:22
27 weeks ago
4.8

12 km
South Pacific Ocean, New ZealandMore
Feb 3, 2022 09:02
27 weeks ago
4.5

12 km
South Pacific Ocean, New ZealandMore
Feb 2, 2022 23:58
27 weeks ago
5.1

5 km
South Pacific Ocean, New ZealandMore
Feb 2, 2022 17:26
27 weeks ago
4.8

10 km
South Pacific Ocean, New ZealandMore
Feb 1, 2022 15:26
27 weeks ago
5.1

5 km
South Pacific Ocean, New ZealandMore
Feb 1, 2022 14:30
27 weeks ago
4.8

10 km
South Pacific Ocean, New ZealandMore
Feb 1, 2022 11:58
27 weeks ago
4.5

10 km
South Pacific Ocean, New ZealandMore
Feb 1, 2022 03:54
27 weeks ago
4.4

33 km
South Pacific Ocean, New ZealandMore
Jan 31, 2022 19:18
27 weeks ago
4.8

23 km
South Pacific Ocean, New ZealandMore
Jan 31, 2022 17:20
27 weeks ago
4.5

10 km
South Pacific Ocean, New ZealandMore
Jan 31, 2022 13:27
27 weeks ago
4.5

33 km
South Pacific Ocean, New ZealandMore
Jan 31, 2022 13:16
27 weeks ago
4.8

33 km
South Pacific Ocean, New ZealandMore
Jan 31, 2022 12:14
27 weeks ago
5.3

33 km
South Pacific Ocean, New ZealandMore
Jan 31, 2022 11:26
27 weeks ago
5.1

33 km
South Pacific Ocean, New ZealandMore
Jan 31, 2022 11:21
27 weeks ago
5.3

5 km
South Pacific Ocean, New ZealandMore
Jan 30, 2022 11:50
27 weeks ago
4.8

33 km
South Pacific Ocean, New ZealandMore
Jan 29, 2022 12:59
27 weeks ago
4.6

33 km
South Pacific Ocean, New ZealandMore
Jan 29, 2022 11:43
27 weeks ago
4.4

33 km
South Pacific Ocean, New ZealandMore
Jan 29, 2022 11:12
27 weeks ago
4.7

33 km
South Pacific Ocean, New ZealandMore
Jan 29, 2022 06:57
27 weeks ago
5.1

33 km
South Pacific Ocean, New ZealandMore
Jan 29, 2022 04:59
27 weeks ago
5.1

5 km
South Pacific Ocean, New ZealandMore
Jan 29, 2022 04:56
27 weeks ago
4.8

10 km
South Pacific Ocean, New ZealandMore
Jan 29, 2022 04:42
27 weeks ago
5.0

10 km
South Pacific Ocean, New ZealandMore
Jan 29, 2022 04:38
27 weeks ago
5.1

10 km
South Pacific Ocean, New ZealandMore
Jan 29, 2022 04:10
27 weeks ago
4.6

33 km
South Pacific Ocean, New ZealandMore
Jan 29, 2022 03:57
27 weeks ago
4.9

10 km
South Pacific Ocean, New ZealandMore
Jan 29, 2022 03:47
27 weeks ago
4.5

10 km
South Pacific Ocean, New ZealandMore
Jan 29, 2022 03:44
27 weeks ago
4.7

10 km
South Pacific Ocean, New ZealandMore
Jan 29, 2022 03:04
27 weeks ago
5.1

10 km
South Pacific Ocean, New ZealandMore
Jan 29, 2022 02:59
27 weeks ago
4.9

10 km
South Pacific Ocean, New ZealandMore
Jan 29, 2022 02:57
27 weeks ago
4.7

10 km
South Pacific Ocean, New ZealandMore
Jan 29, 2022 02:53
27 weeks ago
5.3

10 km
South Pacific Ocean, New ZealandMore
Jan 29, 2022 02:46
27 weeks ago
5.6

33 km
South Pacific Ocean, New ZealandMore
Jan 27, 2022 22:18
28 weeks ago
4.6

33 km
South Pacific Ocean, New ZealandMore
Jan 25, 2022 03:38
28 weeks ago
4.8

10 km
South Pacific Ocean, New ZealandMore
Jan 21, 2022 17:54
28 weeks ago
5.6

343 km
South Pacific Ocean, New ZealandMore
Jan 20, 2022 13:03
29 weeks ago
5.3

33 km
South Pacific Ocean, New ZealandMore
Jan 19, 2022 13:07
29 weeks ago
4.6

33 km
South Pacific Ocean, New ZealandMore
Jan 11, 2022 12:29
30 weeks ago
4.9

191 km
South Pacific Ocean, New ZealandMore
Jan 10, 2022 17:08
30 weeks ago
4.2

0 km
South Pacific Ocean, New ZealandMore
Jan 10, 2022 15:06
30 weeks ago
5.1

33 km
South Pacific Ocean, New ZealandMore
Jan 10, 2022 13:09
30 weeks ago
4.6

205 km
South Pacific Ocean, New ZealandMore
Jan 10, 2022 02:32
30 weeks ago
4.5

33 km
South Pacific Ocean, New ZealandMore
Jan 8, 2022 08:34
30 weeks ago
5.0

34 km
South Pacific Ocean, New ZealandMore
Jan 7, 2022 06:45
30 weeks ago
5.1

33 km
South Pacific Ocean, New ZealandMore
Jan 7, 2022 05:08
30 weeks ago
5.1

5 km
South Pacific Ocean, New ZealandMore
Jan 5, 2022 18:06
31 weeks ago
4.5

12 km
South Pacific Ocean, New ZealandMore
Dec 25, 2021 11:17
32 weeks ago
4.6

12 km
South Pacific Ocean, New ZealandMore
Dec 22, 2021 06:35
33 weeks ago
4.1

300 km
South Pacific Ocean, New ZealandMore
Dec 15, 2021 03:02
34 weeks ago
4.9

12 km
South Pacific Ocean, New ZealandMore
Dec 14, 2021 13:17
34 weeks ago
4.7

10 km
South Pacific Ocean, New ZealandMore
Dec 14, 2021 12:45
34 weeks ago
5.1

33 km
South Pacific Ocean, New ZealandMore
Dec 6, 2021 18:39
35 weeks ago
4.8

7.9 km
South Pacific Ocean, New ZealandMore
Dec 4, 2021 06:38
35 weeks ago
4.9

12 km
South Pacific Ocean, New ZealandMore
Dec 1, 2021 22:53
36 weeks ago
4.6

12 km
South Pacific Ocean, New ZealandMore
Dec 1, 2021 01:38
36 weeks ago
4.7

23 km
South Pacific Ocean, New ZealandMore
Nov 26, 2021 11:41
36 weeks ago
4.9

5 km
South Pacific Ocean, New ZealandMore
Nov 24, 2021 23:26
37 weeks ago
4.2

260 km
South Pacific Ocean, New ZealandMore
Nov 24, 2021 14:04
37 weeks ago
4.8

10 km
South Pacific Ocean, New ZealandMore
Nov 22, 2021 07:47
37 weeks ago
4.5

33 km
South Pacific Ocean, New ZealandMore
Nov 21, 2021 05:12
37 weeks ago
5.6

10 km
South Pacific Ocean, New ZealandMore
Nov 18, 2021 11:15
38 weeks ago
4.6

33 km
South Pacific Ocean, New ZealandMore
Nov 14, 2021 00:18
38 weeks ago
4.7

35 km
South Pacific Ocean, New ZealandMore
Nov 11, 2021 19:15
39 weeks ago
5.0

367 km
South Pacific Ocean, New ZealandMore
Nov 7, 2021 08:47
39 weeks ago
4.8

33 km
South Pacific Ocean, New ZealandMore
Nov 4, 2021 20:55
40 weeks ago
4.6

244 km
South Pacific Ocean, New ZealandMore
Nov 2, 2021 14:21
40 weeks ago
4.5

10 km
South Pacific Ocean, New ZealandMore
Oct 31, 2021 00:48
40 weeks ago
4.9

10 km
South Pacific Ocean, New ZealandMore
Oct 30, 2021 19:00
40 weeks ago
5.0

33 km
South Pacific Ocean, New ZealandMore
Oct 26, 2021 14:59
41 weeks ago
4.4

425 km
South Pacific Ocean, New ZealandMore
Oct 26, 2021 05:24
41 weeks ago
4.7

33 km
South Pacific Ocean, New ZealandMore
Oct 25, 2021 03:38
41 weeks ago
4.6

12 km
South Pacific Ocean, New ZealandMore
Oct 24, 2021 18:12
41 weeks ago
4.6

272 km
South Pacific Ocean, New ZealandMore
Oct 17, 2021 02:30
42 weeks ago
5.4

10 km
South Pacific Ocean, New ZealandMore
Oct 11, 2021 19:24
43 weeks ago
4.5

10 km
South Pacific Ocean, New ZealandMore
Oct 6, 2021 15:23
44 weeks ago
4.0

248 km
South Pacific Ocean, New ZealandMore
Oct 4, 2021 06:52
44 weeks ago
4.5

12 km
South Pacific Ocean, New ZealandMore
Oct 4, 2021 06:34
44 weeks ago
5.9

12 km
South Pacific Ocean, New ZealandMore
Oct 3, 2021 09:45
44 weeks ago
4.3

274 km
South Pacific Ocean, New ZealandMore
Oct 1, 2021 06:28
44 weeks ago
4.6

300 km
South Pacific Ocean, New ZealandMore
Sep 30, 2021 07:38
45 weeks ago
4.9

13 km
South Pacific Ocean, New ZealandMore
Sep 28, 2021 13:30
45 weeks ago
4.5

269 km
South Pacific Ocean, New ZealandMore
Sep 28, 2021 10:15
45 weeks ago
4.9

33 km
South Pacific Ocean, New ZealandMore
Sep 28, 2021 00:41
45 weeks ago
4.9

33 km
South Pacific Ocean, New ZealandMore
Sep 26, 2021 23:06
45 weeks ago
5.1

12 km
South Pacific Ocean, New ZealandMore
Sep 26, 2021 17:03
45 weeks ago - felt
4.8

33 km
South Pacific Ocean, New ZealandMore
Sep 25, 2021 13:42
45 weeks ago
4.9

12 km
South Pacific Ocean, New ZealandMore
Sep 24, 2021 02:31
45 weeks ago
4.6

10 km
South Pacific Ocean, New ZealandMore
Sep 23, 2021 23:37
46 weeks ago
4.7

10 km
South Pacific Ocean, New ZealandMore
Sep 23, 2021 23:32
46 weeks ago
4.8

145 km
South Pacific Ocean, New ZealandMore
Sep 22, 2021 17:44
46 weeks ago
4.5

10 km
South Pacific Ocean, New ZealandMore
Sep 22, 2021 17:33
46 weeks ago - felt
5.0

10 km
South Pacific Ocean, New ZealandMore
Sep 2, 2021 23:20
49 weeks ago
4.9

12 km
South Pacific Ocean, New ZealandMore
Sep 2, 2021 20:54
49 weeks ago
4.9

116 km
South Pacific Ocean, New ZealandMore
Aug 31, 2021 17:59
49 weeks ago
4.8

33 km
South Pacific Ocean, New ZealandMore
Aug 31, 2021 17:40
49 weeks ago
4.8

33 km
South Pacific Ocean, New ZealandMore
Aug 31, 2021 14:54
49 weeks ago
4.9

33 km
South Pacific Ocean, New ZealandMore
Aug 31, 2021 13:30
49 weeks ago
5.1

33 km
South Pacific Ocean, New ZealandMore
Aug 31, 2021 11:00
49 weeks ago
4.7

12 km
South Pacific Ocean, New ZealandMore
Aug 31, 2021 08:43
49 weeks ago
4.9

33 km
South Pacific Ocean, New ZealandMore
Aug 31, 2021 04:32
49 weeks ago
5.1

33 km
South Pacific Ocean, New ZealandMore
Aug 31, 2021 04:06
49 weeks ago
5.2

33 km
South Pacific Ocean, New ZealandMore
Aug 31, 2021 03:22
49 weeks ago
4.9

10 km
South Pacific Ocean, New ZealandMore
Show all

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