Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mwp 6.0 on date 31-01-2022 and time 13:14:38 (Italy) in region New Zealand [Sea]

A magnitude Mwp 6.0 earthquake occured in region: New Zealand [Sea], on

  • 31-01-2022 12:14:38 (UTC)
  • 31-01-2022 13:14:38 (UTC +01:00) Italian time
  • 01-02-2022 01:14:38 (UTC +13:00) local time in the region of the earthquake (Pacific/Tongatapu)

and geographic coordinates (lat, lon) -29.3060, -176.8680 at 6 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 inhabitants.

Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		mb 5.4
Mwp 6.0
Mwpd 6.2 		2022-01-31
12:14:38		 -29.3063 -176.868 6 2022-01-31
12:30:41		 Sala Sismica INGV-Roma 100398791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-01-31 12:14:38
Latitude -29.3063
Longitude -176.8680
Depth (km) 6 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 100398791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 16141
Semi-minor axis of confidence ellipse (meter) 11728
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 82
Circular confidence region, given by single value of horizontal uncertainty (meter) 13030.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 58.5196
Number of associated phases, regardless of their use for origin computation 49
Number of defining phases 49
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 2.58354
Epicentral distance of station closest to the epicenter (degree) 9.99179
Epicentral distance of station farthest from the epicenter (degree) 91.83195
Number of stations at which the event was observed 45
Number of stations from which data was used for origin computation 45
Magnitudes information

Mwpd:6.2

Field Value
Value 6.2
Uncertainty 0.1
Num. used stations 6
Type of magnitude Mwpd
Reference to an origin 100398791
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-01-31 12:30:41

Mwp:6.0

Field Value
Value 6.0
Uncertainty 0.1
Num. used stations 8
Type of magnitude Mwp
Reference to an origin 100398791
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-01-31 12:30:41

mb:5.4

Field Value
Value 5.4
Uncertainty 0.1
Num. used stations 27
Type of magnitude mb
Reference to an origin 100398791
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-01-31 12:30:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
US.BMO.BHZ.00 2022-01-31T12:27:46.98 10.0 negative automatic P 38 91.8320 1.02043 0.0805214
US.HAWA.BHZ.00 2022-01-31T12:27:46.95 10.0 negative automatic P 36 91.7042 1.72121 0.0760193
US.MNTX.BHZ.00 2022-01-31T12:27:44.85 10.0 negative automatic P 54 91.2338 1.79521 0.084307
US.ELK.BHZ.00 2022-01-31T12:27:40.50 10.0 negative automatic P 42 90.3138 1.40956 0.0844099
US.WUAZ.BHZ.00 2022-01-31T12:27:36.48 10.0 negative automatic P 48 89.4204 1.66275 0.0941257
IU.LCO.BHZ.00 2022-01-31T12:27:33.77 10.0 negative automatic P 123 88.5611 2.88189 0.0977381
IU.TUC.BHZ.00 2022-01-31T12:27:29.45 10.0 negative automatic P 51 87.8663 2.08097 0.107241
US.TPNV.BHZ.00 2022-01-31T12:27:25.83 10.0 negative automatic P 44 87.2629 1.24316 0.111642
GE.GSI.BHZ. 2022-01-31T12:27:21.72 10.0 positive automatic P 273 86.7628 -0.168157 0.112735
C1.BO02.BHZ. 2022-01-31T12:27:17.25 10.0 positive automatic P 128 85.3577 2.16079 0.126117
IU.YSS.BHZ.00 2022-01-31T12:27:10.80 10.0 positive automatic P 334 84.5049 0.131084 0.136047
GT.PLCA.BHZ.00 2022-01-31T12:27:02.05 10.0 positive automatic P 133 82.3099 2.52282 0.15657
RM.DLV.BHZ. 2022-01-31T12:27:02.77 10.0 positive automatic P 288 82.8470 0.420481 0.14654
MY.KOM.BHZ. 2022-01-31T12:26:54.82 10.0 negative automatic P 277 81.5586 -0.583136 0
II.ERM.BHZ.00 2022-01-31T12:26:49.22 10.0 positive automatic P 331 80.2745 0.674394 0.145388
C1.LL02.BHZ. 2022-01-31T12:26:50.70 10.0 positive automatic P 134 80.1940 2.53288 0.175923
JP.JSU.BHZ. 2022-01-31T12:26:38.40 10.0 positive automatic P 316 78.7570 -1.94744 0.086515
IU.MAJO.BHZ.00 2022-01-31T12:26:36.12 10.0 positive automatic PcP 325 78.1947 -1.12409 0.08904
JP.JGF.BHZ. 2022-01-31T12:26:34.70 10.0 negative automatic P 323 77.9022 -0.947363 0.191243
G.INU.BHZ.00 2022-01-31T12:26:34.96 10.0 positive automatic PcP 323 77.8769 -0.468919 0.182976
MY.SBM.BHZ. 2022-01-31T12:26:16.42 10.0 positive automatic PcP 282 74.6969 -0.96892 0.228713
MY.LDM.BHZ. 2022-01-31T12:25:54.57 10.0 positive automatic P 288 70.8572 0.000448256 0.237571
GE.JAGI.BHZ. 2022-01-31T12:25:32.37 10.0 positive automatic P 273 67.5721 -1.83733 0.143556
GE.LUWI.BHZ. 2022-01-31T12:25:09.12 10.0 positive automatic P 285 63.8884 -1.28852 0
GE.SANI.BHZ. 2022-01-31T12:24:46.62 10.0 positive automatic P 286 60.6372 -2.00846 0.352885
GE.SOEI.BHZ. 2022-01-31T12:24:31.77 10.0 positive automatic P 277 58.1742 -0.0136269 0
IU.MBWA.BHZ.00 2022-01-31T12:24:23.27 10.0 positive automatic P 262 57.2594 -1.9338 0.427143
IU.CASY.BHZ.00 2022-01-31T12:24:18.27 10.0 positive automatic P 207 56.4213 -0.953347 0.465232
AU.MTN.BHZ.00 2022-01-31T12:23:36.98 10.0 positive automatic P 277 50.7817 -0.909798 0.561685
AU.KDU.BHZ.00 2022-01-31T12:23:28.28 10.0 positive automatic P 278 49.6970 -1.37711 0.580074
IU.SBA.BHZ.00 2022-01-31T12:23:27.00 10.0 positive automatic P 185 49.1075 2.84568 0.590194
GT.VNDA.BHZ.00 2022-01-31T12:23:27.40 10.0 positive automatic P 186 49.1889 1.61653 0.581782
AU.FORT.BHZ.00 2022-01-31T12:23:08.33 10.0 negative automatic P 254 47.2000 -2.09889 0.616114
II.WRAB.BHZ.00 2022-01-31T12:22:51.60 10.0 positive automatic P 270 44.9942 -1.48792 0.632745
IU.CTAO.BHZ.00 2022-01-31T12:21:26.72 10.0 positive automatic P 277 34.5894 0.159127 0.856706
AU.QLP.BHZ. 2022-01-31T12:21:23.80 10.0 negative automatic P 265 34.3122 -0.338771 0.832701
G.CAN.BHZ.00 2022-01-31T12:20:41.00 10.0 positive automatic P 249 29.3172 0.659022 0.909091
IU.HNR.BHZ.00 2022-01-31T12:20:39.70 10.0 positive automatic P 308 29.4223 -1.47657 0.43956
AU.EIDS.BHZ. 2022-01-31T12:20:35.20 10.0 positive automatic P 270 28.6510 0.855098 0.851064
AU.ARMA.BHZ. 2022-01-31T12:20:23.85 10.0 negative automatic P 260 27.2534 1.83717 0.869565
AU.LHI.BHZ.00 2022-01-31T12:19:22.40 10.0 positive automatic P 258 20.8334 3.15614 0.930233
IU.RAR.BHZ.00 2022-01-31T12:18:39.70 10.0 negative automatic P 66 17.4214 -0.87969 0.952381
IU.SNZO.BHZ.00 2022-01-31T12:17:46.35 10.0 positive automatic P 207 13.8160 -6.994 0.930233
II.MSVF.BHZ.00 2022-01-31T12:17:37.17 10.0 positive automatic P 337 12.4590 2.24922 0.769231
NZ.OUZ.HHZ.10 2022-01-31T12:17:03.21 10.0 negative automatic P 231 9.9918 2.17918 0.943396
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download