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Light mag. 4.4 earthquake - 48 km north of Te Anau, Southland District, New Zealand, on 18 Jul 8:36 pm (GMT +12) -

Light mag. 4.4 earthquake - 48 km north of Te Anau, Southland District, New Zealand, on 18 Jul 8:36 pm (GMT +12) Light mag. 4.4 earthquake - 48 km north of Te Anau, Southland District, New Zealand, on 18 Jul 8:36 pm (GMT +12)

Light magnitude 4.4 earthquake at 78 km depth

18 Jul 08:38 UTC: First to report: GEONET (NZ) after 2 minutes.
18 Jul 08:39: Magnitude recalculated from 3.6 to 3.9.
18 Jul 08:43: Magnitude recalculated from 3.9 to 4.4. Hypocenter depth recalculated from 75.3 to 78.0 km (from 47 to 48 mi). Epicenter location corrected by 6.6 km (4.1 mi) towards ESE.
Update Sun, 18 Jul 2021, 08:48

Moderate magnitude 4.4 quake hits 48 km northwest of Te Anau, New Zealand in the evening

4.4 quake 18 Jul 8:36 pm (GMT +12)
4.4 quake 18 Jul 8:36 pm (GMT +12)
An earthquake of magnitude 4.4 occurred in the evening on Sunday 18 July 2021 at 8:36 pm local time near Te Anau, Southland District, Southland, New Zealand, as reported by New Zealand's Earthquake Commission and Geological Survey (GeoNet).
According to preliminary data, the quake was located at an intermediate depth of 78 km. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by the European-Mediterranean Seismological Centre (EMSC), which listed it as a magnitude 3.9 earthquake.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Te Anau (pop. 2,100) located 48 km from the epicenter, Milford Sound (pop. 440) 49 km away, and Queenstown (pop. 10,400) 90 km away.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.

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Earthquake details

Date & timeJul 18, 2021 08:36:26 UTC -
Local time at epicenter18 Jul 8:36 pm (GMT +12)
Depth78.0 km
Epicenter latitude / longitude45.00628°S / 167.52055°E (Southland District, Southland, New Zealand)
Antipode45.006°N / 12.479°W
Shaking intensityVery weak shaking
Felt4 reports
Primary data sourceGEONET (NZ) (Earthquake Commission and Geological Survey, New Zealand)
Nearby towns and cities48 km (30 mi) NNW of Te Anau (pop: 2,930) | Show on map | Quakes nearby
49 km (30 mi) SW of Milford Sound (pop: 435) | Show on map | Quakes nearby
90 km (56 mi) W of Queenstown (Otago) (pop: 10,400) | Show on map | Quakes nearby
100 km (62 mi) WNW of Kingston (Otago) (pop: 2,460) | Show on map | Quakes nearby
132 km (82 mi) W of Cromwell (Otago) (pop: 5,160) | Show on map | Quakes nearby
165 km (102 mi) NW of Gore (pop: 13,100) | Show on map | Quakes nearby
168 km (104 mi) NNW of Invercargill (pop: 47,300) | Show on map | Quakes nearby
252 km (157 mi) WNW of Dunedin (Otago) (pop: 114,300) | Show on map | Quakes nearby
719 km (447 mi) SW of Wellington (pop: 381,900) | Show on map | Quakes nearby
Weather at epicenter at time of quakeScattered Clouds 6.5°C (44 F), humidity: 95%, wind: 3 m/s (5 kts) from SE
Estimated seismic energy released2.5 x 1011 joules (69.8 megawatt hours, equivalent to 60 tons of TNT) | about seismic energy
Show interactive Map
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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.
4.478 kmNew ZealandGEONET (NZ)


Seismic station: South Karori, New Zealand (SNZO/IU network) | Distance from quake: 713 km / 443 mi | Show on map | Station Info
Seismic station South Karori, New Zealand: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (4)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Leave a comment if you find a particular report interesting or want to add to it.
Flag as inappropriate.
Mark as helpful or interesting.
Send your own user report!
Queenstown, Otago (97.2 km E of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 1-2 s
Frankton / Very weak shaking (MMI II) / horizontal (sideways) swinging / 2-5 s
Queenstown (89.9 km E of epicenter) [Map] / Very weak shaking (MMI II) / rattling, vibrating / 2-5 s : A miled treamer  
Queenstown / Very weak shaking (MMI II) / 2-5 s

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