Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mwp 6.0 on date 20-04-2022 and time 07:13:10 (Italy) in region New Caledonia [Sea]

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

  • 20-04-2022 05:13:10 (UTC)
  • 20-04-2022 07:13:10 (UTC +02:00) Italian time
  • 20-04-2022 16:13:10 (UTC +11:00) local time in the region of the earthquake (Pacific/Noumea)

and geographic coordinates (lat, lon) -22.9920, 170.9660 at 14 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 4.9
Mwp 6.0
Mwpd 6.4 		2022-04-20
05:13:10		 -22.9922 170.966 14 2022-04-20
05:31:04		 Sala Sismica INGV-Roma 103509931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-04-20 05:13:10
Latitude -22.9922
Longitude 170.9660
Depth (km) 14 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 103509931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 15157
Semi-minor axis of confidence ellipse (meter) 10142
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 40
Circular confidence region, given by single value of horizontal uncertainty (meter) 12271.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130.602
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.55186
Epicentral distance of station closest to the epicenter (degree) 6.63340
Epicentral distance of station farthest from the epicenter (degree) 73.48156
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 24
Magnitudes information

Mwpd:6.4

Field Value
Value 6.4
Uncertainty 0.0
Num. used stations 3
Type of magnitude Mwpd
Reference to an origin 103509931
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-04-20 05:31:04

Mwp:6.0

Field Value
Value 6.0
Uncertainty 0.2
Num. used stations 10
Type of magnitude Mwp
Reference to an origin 103509931
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-04-20 05:31:04

mb:4.9

Field Value
Value 4.9
Uncertainty 0.2
Num. used stations 20
Type of magnitude mb
Reference to an origin 103509931
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-04-20 05:31:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
MY.IPM.BHZ. 2022-04-20T05:24:39.47 10.0 positive automatic P 282 73.4816 -1.84017 0.111327
IU.SBA.BHZ.00 2022-04-20T05:22:39.50 10.0 negative automatic P 181 54.8912 0.213471 0.435973
GT.VNDA.BHZ.00 2022-04-20T05:22:37.38 10.0 positive automatic P 182 54.6992 -0.529944 0.242548
AU.MORW.BHZ. 2022-04-20T05:21:59.72 10.0 positive automatic P 251 49.2955 2.03765 0.585932
IU.MBWA.BHZ.00 2022-04-20T05:21:41.15 10.0 negative automatic P 262 47.2699 -0.881605 0.621245
GE.SOEI.BHZ. 2022-04-20T05:21:35.47 10.0 negative automatic P 279 46.4944 -0.643779 0.612887
AU.FORT.BHZ.00 2022-04-20T05:20:36.13 10.0 negative automatic P 249 38.8128 2.54218 0.743984
AU.MTN.BHZ.00 2022-04-20T05:20:34.13 10.0 positive automatic P 278 39.0985 -1.84317 0
AU.WRKA.BHZ.00 2022-04-20T05:20:32.65 10.0 negative automatic P 258 38.8693 -1.48627 0.70254
AU.KDU.BHZ.00 2022-04-20T05:20:24.33 10.0 positive automatic P 279 37.9346 -1.85054 0.752035
AU.TOO.BHZ.00 2022-04-20T05:18:44.28 10.0 positive automatic P 230 26.2509 0.305722 0.930233
AU.QLP.BHZ. 2022-04-20T05:18:26.00 10.0 negative automatic P 256 24.4863 -0.883747 0.941176
AU.MILA.BHZ.00 2022-04-20T05:18:19.73 10.0 negative automatic P 228 23.4446 1.36081 0
IU.CTAO.BHZ.00 2022-04-20T05:18:14.17 10.0 positive automatic P 272 23.1399 -0.914836 0.695652
G.CAN.BHZ.00 2022-04-20T05:18:12.05 10.0 positive automatic P 232 22.7196 1.3476 0.930233
NZ.ODZ.HHZ.10 2022-04-20T05:18:02.10 10.0 negative automatic P 181 22.0524 -1.43033 0.328407
NZ.KHZ.HHZ.10 2022-04-20T05:17:35.60 10.0 positive automatic P 174 19.5406 -0.729273 0.913242
AU.ARMA.BHZ. 2022-04-20T05:17:29.85 10.0 positive automatic P 243 18.7672 1.80799 0.952381
IU.SNZO.BHZ.00 2022-04-20T05:17:25.67 10.0 negative automatic P 171 18.5820 -0.159142 0
AU.EIDS.BHZ. 2022-04-20T05:17:23.42 10.0 negative automatic P 259 18.2769 1.03357 0.487805
NZ.URZ.HHZ.10 2022-04-20T05:16:56.39 10.0 negative automatic P 162 16.1469 0.671116 0.869565
NZ.OUZ.HHZ.10 2022-04-20T05:16:06.68 10.0 negative automatic P 170 12.4412 0.834918 0
II.MSVF.BHZ.00 2022-04-20T05:15:11.97 10.0 positive automatic P 53 8.4624 0.474044 0.8
AU.NFK.BHZ.00 2022-04-20T05:14:44.38 10.0 positive automatic P 204 6.6334 -1.90776 0.833333
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