Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mwp 6.1 on date 20-03-2022 and time 19:10:51 (Italy) in region New Zealand [Sea]

A magnitude Mwp 6.1 earthquake occured in region: New Zealand [Sea], on

  • 20-03-2022 18:10:51 (UTC)
  • 20-03-2022 19:10:51 (UTC +01:00) Italian time
  • 21-03-2022 07:10:51 (UTC +13:00) local time in the region of the earthquake (Pacific/Tongatapu)

and geographic coordinates (lat, lon) -28.3780, -177.2830 at 122 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 6.1
Mwpd 6.2 		2022-03-20
18:10:51		 -28.3781 -177.283 122 2022-03-20
18:29:21		 Sala Sismica INGV-Roma 102193931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-03-20 18:10:51
Latitude -28.3781
Longitude -177.2830
Depth (km) 122 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 102193931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 11718
Semi-minor axis of confidence ellipse (meter) 7938
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 108
Circular confidence region, given by single value of horizontal uncertainty (meter) 9540.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 67.0307
Number of associated phases, regardless of their use for origin computation 48
Number of defining phases 48
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.42369
Epicentral distance of station closest to the epicenter (degree) 11.46239
Epicentral distance of station farthest from the epicenter (degree) 80.25866
Number of stations at which the event was observed 43
Number of stations from which data was used for origin computation 43
Magnitudes information

Mwp:6.1

Field Value
Value 6.1
Uncertainty 0.1
Num. used stations 19
Type of magnitude Mwp
Reference to an origin 102193931
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-03-20 18:29:21

Mwpd:6.2

Field Value
Value 6.2
Uncertainty 0.1
Num. used stations 16
Type of magnitude Mwpd
Reference to an origin 102193931
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-03-20 18:29:21

mb:5.4

Field Value
Value 5.4
Uncertainty 0.1
Num. used stations 32
Type of magnitude mb
Reference to an origin 102193931
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-03-20 18:29:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IU.ADK.BHZ.00 2022-03-20T18:22:48.35 10.0 negative automatic P 0 8908.7157 1.21218 0.172859
G.COYC.BHZ.00 2022-03-20T18:22:48.25 10.0 positive automatic PcP 137 8851.9725 -3.46778 0
GE.SNAA.BHZ. 2022-03-20T18:22:45.71 10.0 positive automatic P 178 8865.8031 0.533187 0.176462
GE.MNAI.BHZ. 2022-03-20T18:22:42.17 10.0 negative automatic P 271 8760.3753 2.26074 0.185474
GE.PMBI.BHZ. 2022-03-20T18:22:34.72 10.0 positive automatic P 273 8666.8134 -0.54054 0
G.INU.BHZ.00 2022-03-20T18:22:30.71 10.0 positive automatic P 323 8537.6871 1.90311 0.200475
IU.MAJO.BHZ.00 2022-03-20T18:22:31.87 10.0 positive automatic P 325 8572.2081 1.2726 0.197417
JP.JMZ.BHZ. 2022-03-20T18:22:20.15 10.0 positive automatic PcP 313 8144.3364 -3.96258 0
GE.JAGI.BHZ. 2022-03-20T18:21:30.02 10.0 negative automatic P 273 7455.2706 -0.699879 0.294587
II.KAPI.BHZ.00 2022-03-20T18:21:09.80 10.0 positive automatic P 279 7092.6891 0.0565816 0.337787
GE.LUWI.BHZ. 2022-03-20T18:21:05.72 10.0 positive automatic P 284 7026.7218 -0.0665249 0.326946
AU.GIRL.BHZ.00 2022-03-20T18:20:52.60 10.0 positive automatic P 258 6799.7157 0.418213 0.398729
GE.TNTI.BHZ. 2022-03-20T18:20:45.87 10.0 positive automatic P 289 6705.1992 -0.539894 0.334349
GE.MMRI.BHZ. 2022-03-20T18:20:43.02 10.0 positive automatic P 277 6659.8557 -0.625144 0.368012
GE.SANI.BHZ. 2022-03-20T18:20:43.17 10.0 positive automatic P 285 6664.329 -0.731527 0.345447
GE.SOEI.BHZ. 2022-03-20T18:20:29.02 10.0 positive automatic P 277 6405.1995 1.07164 0.425078
AU.MORW.BHZ. 2022-03-20T18:20:25.75 10.0 negative automatic P 252 6396.6303 -1.53334 0.45736
IU.MBWA.BHZ.00 2022-03-20T18:20:21.75 10.0 positive automatic P 262 6329.664 -1.28057 0.45015
GE.FAKI.BHZ. 2022-03-20T18:20:02.87 10.0 positive automatic P 288 6027.3444 -0.698399 0.464274
AU.FITZ.BHZ. 2022-03-20T18:19:53.28 10.0 positive automatic P 268 5879.6922 -0.594817 0.453761
IU.SBA.BHZ.00 2022-03-20T18:19:33.25 10.0 negative automatic P 184 5550.5328 1.4529 0.567314
AU.MTN.BHZ.00 2022-03-20T18:19:33.15 10.0 positive automatic P 277 5583.8439 -0.921886 0.513389
GT.VNDA.BHZ.00 2022-03-20T18:19:32.28 10.0 positive automatic P 186 5558.325 -0.0597775 0.53433
AU.KDU.BHZ.00 2022-03-20T18:19:24.68 10.0 positive automatic P 278 5461.8327 -1.0618 0.513567
AU.WRKA.BHZ.00 2022-03-20T18:19:17.65 10.0 positive automatic P 261 5363.3979 -1.41316 0.610531
AU.FORT.BHZ.00 2022-03-20T18:19:07.43 10.0 positive automatic P 253 5229.9648 -2.28674 0.631921
II.WRAB.BHZ.00 2022-03-20T18:18:49.82 10.0 negative automatic P 270 4953.7524 -0.401124 0.677372
AU.RABL.BHZ.00 2022-03-20T18:17:53.28 10.0 positive automatic P 304 4193.2359 -0.934307 0.365246
AU.HTT.BHZ. 2022-03-20T18:17:51.40 10.0 positive automatic P 251 4177.9068 -1.72468 0.794108
IU.CTAO.BHZ.00 2022-03-20T18:17:24.30 10.0 positive automatic P 276 3787.8639 1.19186 0.875925
AU.QLP.BHZ. 2022-03-20T18:17:22.70 10.0 positive automatic P 264 3778.5843 0.339089 0.867233
AU.TOO.BHZ.00 2022-03-20T18:17:06.48 10.0 positive automatic P 244 3587.3757 -0.980498 0.882378
II.TAU.BHZ.00 2022-03-20T18:17:02.62 10.0 positive automatic P 233 3541.6104 -1.14699 0.870689
AU.MILA.BHZ.00 2022-03-20T18:16:41.58 10.0 positive automatic P 244 3259.5483 0.0652076 0
G.CAN.BHZ.00 2022-03-20T18:16:41.10 10.0 positive automatic P 248 3254.4645 0.00810562 0.930233
AU.EIDS.BHZ. 2022-03-20T18:16:32.95 10.0 positive automatic P 269 3140.967 1.00119 0.987654
AU.ARMA.BHZ. 2022-03-20T18:16:22.95 10.0 positive automatic P 258 3005.3583 1.72081 0.91954
AU.LHI.BHZ.00 2022-03-20T18:15:20.85 10.0 positive automatic P 255 2297.0007 0.497577 0.963855
G.SANVU.BHZ.00 2022-03-20T18:15:07.85 10.0 positive automatic P 309 2143.2879 2.43033 0.43956
IU.RAR.BHZ.00 2022-03-20T18:14:44.97 10.0 positive automatic P 70 1932.51 0.30099 0.963855
G.DZM.BHZ.00 2022-03-20T18:14:29.38 10.0 positive automatic P 290 1775.4006 1.27589 0.934579
IU.AFI.BHZ.00 2022-03-20T18:14:17.60 10.0 negative automatic P 21 1703.3727 -2.43326 0.963855
II.MSVF.BHZ.00 2022-03-20T18:13:31.47 10.0 negative automatic P 337 1272.3264 1.48518 0.888889
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