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Weak mag. 2.1 earthquake - 9.1 km south of Christchurch, Canterbury, New Zealand, on Monday, Oct 3, 2022 at 4:01 am (GMT +13) -

Weak magnitude 2.1 earthquake at 5 km depth

2 Oct 15:02 UTC: First to report: GEONET (NZ) after 52 seconds.
2 Oct 15:03: Hypocenter depth recalculated from 10.9 to 5.0 km (from 6.8 to 3.1 mi). Epicenter location corrected by 2.3 km (1.4 mi) towards ENE.
2 Oct 15:04: Magnitude recalculated from 2.2 to 2.1.
2 Oct 15:07: Hypocenter depth recalculated from 5.0 to 4.7 km (from 3.1 to 2.9 mi). Epicenter location corrected by 1.5 km (1 mi) towards NNE.

Earthquake details

Date & time	Oct 2, 2022 15:01:13 UTC -
Local time at epicenter	Monday, Oct 3, 2022 at 4:01 am (GMT +13)
Status	Confirmed
Magnitude	2.1
Depth	4.7 km
Epicenter latitude / longitude	43.61259°S / 172.66203°E (Christchurch City, Canterbury, New Zealand)
Antipode	43.613°N / 7.338°W
Shaking intensity	Very weak shaking
Felt	0 reports
Primary data source	GEONET (NZ) (Earthquake Commission and Geological Survey, New Zealand)
Nearest volcano	###NEARESTVOLCANO2###
Nearby towns and cities	2 km (1 mi) NE of Governors Bay (pop: 940) \| Show on map \| Quakes nearby 9 km (6 mi) SSE of Christchurch (pop: 363,900) \| Show on map \| Quakes nearby 12 km (8 mi) ESE of Prebbleton (Región de Canterbury) (pop: 3,600) \| Show on map \| Quakes nearby 23 km (14 mi) E of Rolleston (pop: 3,120) \| Show on map \| Quakes nearby 26 km (16 mi) S of Kaiapoi (pop: 10,200) \| Show on map \| Quakes nearby 35 km (22 mi) S of Rangiora (pop: 18,400) \| Show on map \| Quakes nearby 81 km (51 mi) ENE of Ashburton (pop: 30,100) \| Show on map \| Quakes nearby 311 km (194 mi) SSW of Wellington (pop: 381,900) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Broken Clouds 3.4°C (38 F), humidity: 80%, wind: 2 m/s (4 kts) from ENE
Estimated seismic energy released	8.9 x 10⁷ joules (24.8 kilowatt hours) \| 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.	Depth	Location	Source
2.1	4.7 km	New Zealand	GEONET (NZ)
2.1	4.7 km	South Island, New Zealand	RaspberryShake

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Seismograms

Seismic station: South Karori, New Zealand (SNZO/IU network) | Distance from quake: 306 km / 190 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. Bandpass filter applied: 0.5-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

User reports for this quake

At magnitude 2.1, such a quake wouldn't normally be felt by people except under very favorable conditions.

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.

There are no user reports for this quake.

Earlier earthquakes in the same area

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