Earthquake with magnitude of mb 5.6 on date 20-05-2023 and time 04:09:56 (Italy) 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 Takeoff_angle Residual Weight
IU.COLA.BHZ.00 2023-05-20T02:23:20.70 10.0 negative automatic sP 16 93.4351 3.73666 0
US.EGAK.BHZ.00 2023-05-20T02:23:16.85 10.0 positive automatic P 19 95.2091 -0.943916 0.0614955
C1.LL02.BHZ. 2023-05-20T02:23:07.78 10.0 positive automatic P 140 92.2827 3.42429 0.0726574
US.WVOR.BHZ.00 2023-05-20T02:23:05.40 10.0 positive automatic P 44 92.0956 1.7442 0.0788805
NN.PRN.HHZ. 2023-05-20T02:23:04.71 10.0 positive automatic P 50 92.0935 1.04322 0.0811583
AT.TTA.BHZ. 2023-05-20T02:23:03.40 10.0 negative automatic sP 14 89.8302 2.92203 0
G.COYC.BHZ.00 2023-05-20T02:23:01.90 10.0 negative automatic P 141 90.7807 4.53199 0.087233
US.TPNV.BHZ.00 2023-05-20T02:22:59.25 10.0 positive automatic P 50 91.0358 0.46008 0.0876173
IU.ULN.BHZ.00 2023-05-20T02:22:59.07 10.0 positive automatic P 323 91.0013 0.438607 0.087845
IN.SHL.HHZ. 2023-05-20T02:22:56.71 10.0 negative automatic P 298 90.6101 0.175797 0.0922071
II.PFO.BHZ.00 2023-05-20T02:22:52.77 10.0 positive automatic P 53 89.2980 2.13751 0.0908183
BK.CMB.BHZ.00 2023-05-20T02:22:49.65 10.0 positive automatic P 47 88.7200 1.8297 0.104824
BK.SAO.BHZ.00 2023-05-20T02:22:41.20 10.0 positive automatic P 48 87.3408 0.00192851 0.0252698
IU.MA2.BHZ.00 2023-05-20T02:22:23.82 10.0 negative automatic P 350 84.2189 -1.89275 0.129183
AU.MAW.BHZ. 2023-05-20T02:21:37.83 10.0 negative automatic P 202 75.3493 0.228671 0.214158
GE.GSI.BHZ. 2023-05-20T02:21:37.92 10.0 negative automatic P 278 75.2041 1.14457 0.213183
IU.YSS.BHZ.00 2023-05-20T02:21:32.85 10.0 positive automatic P 340 74.4282 0.55421 0.216149
MY.IPM.BHZ. 2023-05-20T02:21:26.87 10.0 negative automatic P 282 73.4159 0.483485 0.236943
JP.JKA.BHZ. 2023-05-20T02:21:17.50 10.0 negative automatic PcP 338 69.2926 -7.4862 0
MY.KOM.BHZ. 2023-05-20T02:21:04.17 10.0 negative automatic P 281 69.7165 0.104389 0.278305
JP.JTM.BHZ. 2023-05-20T02:21:02.10 10.0 negative automatic P 336 69.5545 -0.979706 0.280192
GE.MNAI.BHZ. 2023-05-20T02:20:53.57 10.0 positive automatic P 275 68.0033 0.147408 0.298587
IU.TATO.BHZ.00 2023-05-20T02:20:52.17 10.0 positive automatic P 312 67.7823 0.138229 0.301255
G.INU.BHZ.00 2023-05-20T02:20:46.01 10.0 positive automatic P 330 66.5875 1.56347 0.315887
JP.JSU.BHZ. 2023-05-20T02:20:46.05 10.0 positive automatic P 323 66.8546 -0.148907 0
IU.MAJO.BHZ.00 2023-05-20T02:20:44.32 10.0 negative automatic P 332 67.0639 -3.2115 0.31001
JP.JMN.BHZ. 2023-05-20T02:20:44.75 10.0 positive automatic P 327 66.7799 -0.997189 0.313507
JP.JGF.BHZ. 2023-05-20T02:20:41.65 10.0 negative automatic P 331 66.6512 -3.28035 0.307936
IU.CASY.BHZ.00 2023-05-20T02:19:40.77 10.0 positive automatic P 205 57.2480 -0.855567 0.172864
GE.JAGI.BHZ. 2023-05-20T02:19:31.67 10.0 positive automatic P 275 56.1553 -2.22309 0.438002
IU.SBA.BHZ.00 2023-05-20T02:19:25.40 10.0 positive automatic P 181 54.8758 0.724238 0.483291
GT.VNDA.BHZ.00 2023-05-20T02:19:23.90 10.0 negative automatic P 182 54.6822 0.61773 0.128366
II.KAPI.BHZ.00 2023-05-20T02:19:05.80 10.0 positive automatic P 282 52.4452 -1.11045 0.521488
GE.LUWI.BHZ. 2023-05-20T02:19:01.77 10.0 positive automatic P 288 51.5719 1.4171 0.344873
AU.MORW.BHZ. 2023-05-20T02:18:41.05 10.0 negative automatic P 251 49.2245 -1.60632 0.57434
GE.SANI.BHZ. 2023-05-20T02:18:33.72 10.0 negative automatic P 289 48.2741 -1.5844 0.583558
IU.NWAO.BHZ.00 2023-05-20T02:18:30.52 10.0 positive automatic P 246 47.9024 -1.9694 0.57643
IU.MBWA.BHZ.00 2023-05-20T02:18:25.35 10.0 negative automatic P 262 47.1982 -1.63977 0.616147
GE.SOEI.BHZ. 2023-05-20T02:18:22.57 10.0 positive automatic P 279 46.4269 1.46933 0.615083
IU.GUMO.BHZ.00 2023-05-20T02:18:06.47 10.0 positive automatic P 323 44.5864 0.0926236 0.611749
IU.WAKE.BHZ.00 2023-05-20T02:17:48.72 10.0 negative automatic P 354 42.4896 -0.735933 0.685042
GE.FAKI.BHZ. 2023-05-20T02:17:48.27 10.0 positive automatic P 292 42.4436 -0.83264 0.685882
AU.MTN.BHZ.00 2023-05-20T02:17:18.65 10.0 positive automatic P 278 39.0308 -2.28729 0.767459
AU.WRKA.BHZ.00 2023-05-20T02:17:17.53 10.0 negative automatic P 258 38.7976 -1.54342 0.720554
AU.FORT.BHZ.00 2023-05-20T02:17:16.68 10.0 negative automatic P 249 38.7421 -1.84865 0.755131
AU.KDU.BHZ.00 2023-05-20T02:17:10.48 10.0 negative automatic P 279 37.8673 -0.668099 0.763108
II.WRAB.BHZ.00 2023-05-20T02:16:37.05 10.0 negative automatic P 268 34.0466 -1.43148 0.889119
II.TAU.BHZ.00 2023-05-20T02:15:51.42 10.0 positive automatic P 219 27.8671 0.57071 0
GE.PMG.BHZ.00 2023-05-20T02:15:33.57 10.0 positive automatic P 297 26.4700 2.15812 0.930233
AU.TOO.BHZ.00 2023-05-20T02:15:29.73 10.0 positive automatic P 230 26.1877 0.771702 0.963855
AU.QLP.BHZ. 2023-05-20T02:15:11.75 10.0 negative automatic P 256 24.4146 -1.03921 0.869565
IU.CTAO.BHZ.00 2023-05-20T02:15:00.62 10.0 positive automatic P 273 23.0702 0.658427 0.930233
G.CAN.BHZ.00 2023-05-20T02:14:57.90 10.0 negative automatic P 232 22.6554 2.26629 0.952381
NZ.ODZ.HHZ.10 2023-05-20T02:14:49.96 10.0 negative automatic P 180 22.0376 0.972538 0.888889
AU.RIV.BHZ. 2023-05-20T02:14:34.75 10.0 negative automatic P 234 20.3935 3.5034 0.952381
NZ.KHZ.HHZ.10 2023-05-20T02:14:24.01 10.0 positive automatic P 174 19.5336 2.13211 0.970874
AU.ARMA.BHZ. 2023-05-20T02:14:15.20 10.0 negative automatic P 243 18.6983 2.2895 0.909091
IU.SNZO.BHZ.00 2023-05-20T02:14:14.15 10.0 positive automatic P 171 18.5791 2.72013 0.97561
AU.EIDS.BHZ. 2023-05-20T02:14:10.27 10.0 positive automatic P 259 18.2051 3.08328 0.57971
IU.HNR.BHZ.00 2023-05-20T02:13:55.92 10.0 positive automatic P 321 17.1397 1.93145 0.952381
NZ.URZ.HHZ.10 2023-05-20T02:13:47.33 10.0 positive automatic P 162 16.1533 -2.43298 0
NZ.OUZ.HHZ.10 2023-05-20T02:12:49.45 10.0 positive automatic P 170 12.4380 -2.10127 0.938967
AU.NFK.BHZ.00 2023-05-20T02:11:24.84 10.0 negative automatic P 203 6.5926 -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