Earthquake with magnitude of mb 5.6 on date 20-05-2023 and time 02:09:56 (UTC) in region New Caledonia [Sea]

A magnitude mb 5.6 earthquake occured in region: New Caledonia [Sea], on

  • 20-05-2023 02:09:56 (UTC)
  • 20-05-2023 04:09:56 (UTC +02:00) Italian time
  • 20-05-2023 13:09:56 (UTC +11:00) local time in the region of the earthquake (Pacific/Noumea)

and geographic coordinates (lat, lon) -23.0060, 170.8900 at 19 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.

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 5.6 2023-05-20
02:09:56
-23.0063 170.89 19 2023-05-20
02:57:42
Sala Sismica INGV-Roma 117509871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-20 02:09:56
Latitude -23.0063
Longitude 170.8900
Depth (km) 19 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 117509871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 22864
Semi-minor axis of confidence ellipse (meter) 17558
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 265
Circular confidence region, given by single value of horizontal uncertainty (meter) 18456.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86.9067
Number of associated phases, regardless of their use for origin computation 63
Number of defining phases 63
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 2.29525
Epicentral distance of station closest to the epicenter (degree) 6.59264
Epicentral distance of station farthest from the epicenter (degree) 95.20910
Number of stations at which the event was observed 63
Number of stations from which data was used for origin computation 63
Magnitude information

mb:5.6

Field Value
Value 5.6
Uncertainty 0.1
Num. used stations 52
Type of magnitude mb
Reference to an origin 117509871
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-05-20 02:57:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IU.COLA.BHZ.00 2023-05-20T02:23:20.70 10.0 negative automatic sP 16 10371.2961 3.73666 0
US.EGAK.BHZ.00 2023-05-20T02:23:16.85 10.0 positive automatic P 19 10568.2101 -0.943916 0.0614955
C1.LL02.BHZ. 2023-05-20T02:23:07.78 10.0 positive automatic P 140 10243.3797 3.42429 0.0726574
US.WVOR.BHZ.00 2023-05-20T02:23:05.40 10.0 positive automatic P 44 10222.6116 1.7442 0.0788805
NN.PRN.HHZ. 2023-05-20T02:23:04.71 10.0 positive automatic P 50 10222.3785 1.04322 0.0811583
AT.TTA.BHZ. 2023-05-20T02:23:03.40 10.0 negative automatic sP 14 9971.1522 2.92203 0
G.COYC.BHZ.00 2023-05-20T02:23:01.90 10.0 negative automatic P 141 10076.6577 4.53199 0.087233
IU.ULN.BHZ.00 2023-05-20T02:22:59.07 10.0 positive automatic P 323 10101.1443 0.438607 0.087845
US.TPNV.BHZ.00 2023-05-20T02:22:59.25 10.0 positive automatic P 50 10104.9738 0.46008 0.0876173
IN.SHL.HHZ. 2023-05-20T02:22:56.71 10.0 negative automatic P 298 10057.7211 0.175797 0.0922071
II.PFO.BHZ.00 2023-05-20T02:22:52.77 10.0 positive automatic P 53 9912.078 2.13751 0.0908183
BK.CMB.BHZ.00 2023-05-20T02:22:49.65 10.0 positive automatic P 47 9847.92 1.8297 0.104824
BK.SAO.BHZ.00 2023-05-20T02:22:41.20 10.0 positive automatic P 48 9694.8288 0.00192851 0.0252698
IU.MA2.BHZ.00 2023-05-20T02:22:23.82 10.0 negative automatic P 350 9348.2979 -1.89275 0.129183
GE.GSI.BHZ. 2023-05-20T02:21:37.92 10.0 negative automatic P 278 8347.6551 1.14457 0.213183
AU.MAW.BHZ. 2023-05-20T02:21:37.83 10.0 negative automatic P 202 8363.7723 0.228671 0.214158
IU.YSS.BHZ.00 2023-05-20T02:21:32.85 10.0 positive automatic P 340 8261.5302 0.55421 0.216149
MY.IPM.BHZ. 2023-05-20T02:21:26.87 10.0 negative automatic P 282 8149.1649 0.483485 0.236943
JP.JKA.BHZ. 2023-05-20T02:21:17.50 10.0 negative automatic PcP 338 7691.4786 -7.4862 0
MY.KOM.BHZ. 2023-05-20T02:21:04.17 10.0 negative automatic P 281 7738.5315 0.104389 0.278305
JP.JTM.BHZ. 2023-05-20T02:21:02.10 10.0 negative automatic P 336 7720.5495 -0.979706 0.280192
GE.MNAI.BHZ. 2023-05-20T02:20:53.57 10.0 positive automatic P 275 7548.3663 0.147408 0.298587
IU.TATO.BHZ.00 2023-05-20T02:20:52.17 10.0 positive automatic P 312 7523.8353 0.138229 0.301255
JP.JSU.BHZ. 2023-05-20T02:20:46.05 10.0 positive automatic P 323 7420.8606 -0.148907 0
G.INU.BHZ.00 2023-05-20T02:20:46.01 10.0 positive automatic P 330 7391.2125 1.56347 0.315887
JP.JMN.BHZ. 2023-05-20T02:20:44.75 10.0 positive automatic P 327 7412.5689 -0.997189 0.313507
IU.MAJO.BHZ.00 2023-05-20T02:20:44.32 10.0 negative automatic P 332 7444.0929 -3.2115 0.31001
JP.JGF.BHZ. 2023-05-20T02:20:41.65 10.0 negative automatic P 331 7398.2832 -3.28035 0.307936
IU.CASY.BHZ.00 2023-05-20T02:19:40.77 10.0 positive automatic P 205 6354.528 -0.855567 0.172864
GE.JAGI.BHZ. 2023-05-20T02:19:31.67 10.0 positive automatic P 275 6233.2383 -2.22309 0.438002
IU.SBA.BHZ.00 2023-05-20T02:19:25.40 10.0 positive automatic P 181 6091.2138 0.724238 0.483291
GT.VNDA.BHZ.00 2023-05-20T02:19:23.90 10.0 negative automatic P 182 6069.7242 0.61773 0.128366
II.KAPI.BHZ.00 2023-05-20T02:19:05.80 10.0 positive automatic P 282 5821.4172 -1.11045 0.521488
GE.LUWI.BHZ. 2023-05-20T02:19:01.77 10.0 positive automatic P 288 5724.4809 1.4171 0.344873
AU.MORW.BHZ. 2023-05-20T02:18:41.05 10.0 negative automatic P 251 5463.9195 -1.60632 0.57434
GE.SANI.BHZ. 2023-05-20T02:18:33.72 10.0 negative automatic P 289 5358.4251 -1.5844 0.583558
IU.NWAO.BHZ.00 2023-05-20T02:18:30.52 10.0 positive automatic P 246 5317.1664 -1.9694 0.57643
IU.MBWA.BHZ.00 2023-05-20T02:18:25.35 10.0 negative automatic P 262 5239.0002 -1.63977 0.616147
GE.SOEI.BHZ. 2023-05-20T02:18:22.57 10.0 positive automatic P 279 5153.3859 1.46933 0.615083
IU.GUMO.BHZ.00 2023-05-20T02:18:06.47 10.0 positive automatic P 323 4949.0904 0.0926236 0.611749
GE.FAKI.BHZ. 2023-05-20T02:17:48.27 10.0 positive automatic P 292 4711.2396 -0.83264 0.685882
IU.WAKE.BHZ.00 2023-05-20T02:17:48.72 10.0 negative automatic P 354 4716.3456 -0.735933 0.685042
AU.MTN.BHZ.00 2023-05-20T02:17:18.65 10.0 positive automatic P 278 4332.4188 -2.28729 0.767459
AU.WRKA.BHZ.00 2023-05-20T02:17:17.53 10.0 negative automatic P 258 4306.5336 -1.54342 0.720554
AU.FORT.BHZ.00 2023-05-20T02:17:16.68 10.0 negative automatic P 249 4300.3731 -1.84865 0.755131
AU.KDU.BHZ.00 2023-05-20T02:17:10.48 10.0 negative automatic P 279 4203.2703 -0.668099 0.763108
II.WRAB.BHZ.00 2023-05-20T02:16:37.05 10.0 negative automatic P 268 3779.1726 -1.43148 0.889119
II.TAU.BHZ.00 2023-05-20T02:15:51.42 10.0 positive automatic P 219 3093.2481 0.57071 0
GE.PMG.BHZ.00 2023-05-20T02:15:33.57 10.0 positive automatic P 297 2938.17 2.15812 0.930233
AU.TOO.BHZ.00 2023-05-20T02:15:29.73 10.0 positive automatic P 230 2906.8347 0.771702 0.963855
AU.QLP.BHZ. 2023-05-20T02:15:11.75 10.0 negative automatic P 256 2710.0206 -1.03921 0.869565
IU.CTAO.BHZ.00 2023-05-20T02:15:00.62 10.0 positive automatic P 273 2560.7922 0.658427 0.930233
G.CAN.BHZ.00 2023-05-20T02:14:57.90 10.0 negative automatic P 232 2514.7494 2.26629 0.952381
NZ.ODZ.HHZ.10 2023-05-20T02:14:49.96 10.0 negative automatic P 180 2446.1736 0.972538 0.888889
AU.RIV.BHZ. 2023-05-20T02:14:34.75 10.0 negative automatic P 234 2263.6785 3.5034 0.952381
NZ.KHZ.HHZ.10 2023-05-20T02:14:24.01 10.0 positive automatic P 174 2168.2296 2.13211 0.970874
AU.ARMA.BHZ. 2023-05-20T02:14:15.20 10.0 negative automatic P 243 2075.5113 2.2895 0.909091
IU.SNZO.BHZ.00 2023-05-20T02:14:14.15 10.0 positive automatic P 171 2062.2801 2.72013 0.97561
AU.EIDS.BHZ. 2023-05-20T02:14:10.27 10.0 positive automatic P 259 2020.7661 3.08328 0.57971
IU.HNR.BHZ.00 2023-05-20T02:13:55.92 10.0 positive automatic P 321 1902.5067 1.93145 0.952381
NZ.URZ.HHZ.10 2023-05-20T02:13:47.33 10.0 positive automatic P 162 1793.0163 -2.43298 0
NZ.OUZ.HHZ.10 2023-05-20T02:12:49.45 10.0 positive automatic P 170 1380.618 -2.10127 0.938967
AU.NFK.BHZ.00 2023-05-20T02:11:24.84 10.0 negative automatic P 203 731.7786 -6.64187 0.892857
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