Earthquake with magnitude of Mwpd 7.5 on date 10-02-2021 and time 13:19:59 (UTC) in region New Caledonia [Sea]

A magnitude Mwpd 7.5 earthquake occured in region: New Caledonia [Sea], on

  • 10-02-2021 13:19:59 (UTC)
  • 10-02-2021 14:19:59 (UTC +01:00) Italian time
  • 11-02-2021 00:19:59 (UTC +11:00) local time in the region of the earthquake (Pacific/Noumea)

and geographic coordinates (lat, lon) -22.87, 171.52 at 1 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

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and adjourned progressively as more data become available. See http://shakemap.rm.ingv.it/ for additional information.

The red star indicates the epicenter. The red triangles show the stations of the INGV Italian National Seismic Network and the blue triangles those of the Nationa Accelerometric Network of the Dipartimento della Protezione Civile.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of the istrumentally derived intensities. To this purpose, it is used a conversion relation between ground acceleration and velocity, and the Mercalli Modificata (MMI - Modified Mercalli Intensity) scale. In general, the Mercalli intensity scale relies on the effects that the ground shaking produces as reported by an observer.
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows This map shows the distribution of peak ground acceleration expressed as per cent of the acceleration of gravity (i.e., g = 9.81 m/s²).
Peak velocity Shakemap

Peak velocity Shakemap

This map shows the distribution of peak ground velocities expressed in cm/s.
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
mb 5.7
Mwp 7.4
Mwpd 7.5
2021-02-10
13:19:59
-22.87 171.52 1 2021-02-10
13:51:10
Sala Sismica INGV-Roma 86999681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-10 13:19:59
Latitude -22.87
Longitude 171.52
Depth (km) 1 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 86999681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 16637
Semi-minor axis of confidence ellipse (meter) 14614
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 164
Circular confidence region, given by single value of horizontal uncertainty (meter) 13430.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 37.7425
Number of associated phases, regardless of their use for origin computation 101
Number of defining phases 101
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 2.29034
Epicentral distance of station closest to the epicenter (degree) 7.9835
Epicentral distance of station farthest from the epicenter (degree) 106.87329
Number of stations at which the event was observed 100
Number of stations from which data was used for origin computation 100
Magnitudes information

Mwpd:7.5

Field Value
Value 7.5
Uncertainty 0.1
Num. used stations 39
Type of magnitude Mwpd
Reference to an origin 86999681
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-02-10 13:51:10

Mwp:7.4

Field Value
Value 7.4
Uncertainty 0.1
Num. used stations 37
Type of magnitude Mwp
Reference to an origin 86999681
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-02-10 13:51:10

mb:5.7

Field Value
Value 5.7
Uncertainty 0.1
Num. used stations 69
Type of magnitude mb
Reference to an origin 86999681
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-02-10 13:51:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
US.ECSD.BHZ.00 2021-02-10T13:34:31.25 10.0 negative automatic Pdiff 49 106.8733 16.1172 0
IU.MAKZ.BHZ.00 2021-02-10T13:34:23.72 10.0 negative automatic Pdiff 315 106.1593 11.7344 0
IU.LCO.BHZ.00 2021-02-10T13:34:04.42 10.0 positive automatic Pdiff 128 100.7726 16.0999 0
WA.ZON.HHZ. 2021-02-10T13:34:04.55 10.0 positive automatic Pdiff 131 100.7606 16.5407 0
US.LAO.BHZ.00 2021-02-10T13:34:03.65 10.0 negative automatic Pdiff 44 101.3935 12.8045 0
IU.RSSD.BHZ.00 2021-02-10T13:34:02.67 10.0 positive automatic Pdiff 47 101.9135 9.30233 0
C.GO04.BHZ. 2021-02-10T13:34:00.93 10.0 negative automatic Pdiff 129 100.0516 15.8328 0
C1.CO02.BHZ. 2021-02-10T13:33:48.00 10.0 negative automatic P 130 99.3316 6.27363 0.0406028
US.SDCO.BHZ.00 2021-02-10T13:33:45.43 10.0 negative automatic P 53 98.5545 6.92841 0.0446751
US.BOZ.BHZ.00 2021-02-10T13:33:44.85 10.0 positive automatic P 43 97.5219 11.0985 0
US.BW06.BHZ.00 2021-02-10T13:33:44.18 10.0 positive automatic P 47 97.6908 9.62357 0.044593
US.MSO.BHZ.00 2021-02-10T13:33:40.93 10.0 positive automatic P 42 96.6215 11.2247 0
C1.BO02.BHZ. 2021-02-10T13:33:35.37 10.0 positive automatic PcP 133 97.4579 2.09721 0.0466619
US.NEW.BHZ.00 2021-02-10T13:33:35.08 10.0 negative automatic PcP 39 95.3857 10.9591 0
IU.ANMO.BHZ.00 2021-02-10T13:33:33.87 10.0 positive automatic P 55 96.7592 3.5909 0.0488847
US.HWUT.BHZ.00 2021-02-10T13:33:32.83 10.0 positive automatic P 47 95.8542 6.65753 0.0590167
MX.ZAIG.BHZ. 2021-02-10T13:33:27.47 10.0 negative automatic P 67 95.1487 4.41705 0.0555618
GE.MALK.BHZ. 2021-02-10T13:33:26.62 10.0 negative automatic P 277 94.1464 8.5586 0.0662982
US.BMO.BHZ.00 2021-02-10T13:33:26.25 10.0 negative automatic P 42 93.6256 9.88156 0
US.MNTX.BHZ.00 2021-02-10T13:33:23.28 10.0 negative automatic P 58 96.3093 -4.7152 0.0533479
C.GO06.BHZ. 2021-02-10T13:33:21.30 10.0 positive automatic PcP 136 94.2823 1.996 0
GT.PLCA.BHZ.00 2021-02-10T13:33:20.93 10.0 positive automatic P 138 94.2015 2.44838 0.067556
US.HLID.BHZ.00 2021-02-10T13:33:16.93 10.0 positive automatic P 44 94.8445 -4.62388 0.0583248
CN.BBB.BHZ. 2021-02-10T13:33:15.90 10.0 positive automatic PcP 32 91.5835 8.78493 0
US.WUAZ.BHZ.00 2021-02-10T13:33:12.78 10.0 negative automatic P 53 93.344 -1.84985 0.0709313
US.HAWA.BHZ.00 2021-02-10T13:33:10.35 10.0 negative automatic P 40 93.0405 -2.65752 0.0718885
IN.SHL.HHZ. 2021-02-10T13:33:10.07 10.0 positive automatic P 297 91.0662 6.25676 0.0861374
US.ELK.BHZ.00 2021-02-10T13:33:10.60 10.0 positive automatic P 47 92.9974 -2.52767 0.0705207
IU.YAK.BHZ.00 2021-02-10T13:33:07.07 10.0 positive automatic P 342 91.2207 2.51707 0.0839459
G.COYC.BHZ.00 2021-02-10T13:33:06.50 10.0 positive automatic P 141 90.5196 5.18159 0.0905906
IU.TUC.BHZ.00 2021-02-10T13:33:06.10 10.0 negative automatic P 56 92.3882 -3.99683 0.0766539
NN.PRN.HHZ. 2021-02-10T13:33:02.08 10.0 negative automatic P 50 91.5616 -4.28394 0.0845352
US.NLWA.BHZ.00 2021-02-10T13:33:01.73 10.0 positive automatic P 38 91.061 -2.17426 0.090214
US.WVOR.BHZ.00 2021-02-10T13:33:01.15 10.0 positive automatic P 44 91.5939 -5.34215 0.0762591
IU.ULN.BHZ.00 2021-02-10T13:33:00.72 10.0 negative automatic P 323 91.2476 -4.2153 0.0837741
IU.BILL.BHZ.00 2021-02-10T13:32:59.97 10.0 positive automatic P 358 91.0112 -3.64518 0.0852897
US.TPNV.BHZ.00 2021-02-10T13:32:56.83 10.0 negative automatic P 50 90.5039 -4.65668 0.0896287
MX.SRIG.BHZ. 2021-02-10T13:32:51.98 10.0 positive automatic P 60 89.0568 -2.46258 0
C1.MG02.BHZ. 2021-02-10T13:32:51.23 10.0 positive automatic PcP 148 87.8645 0.561336 0
II.KDAK.BHZ.00 2021-02-10T13:32:50.15 10.0 negative automatic PcP 18 86.0339 7.54384 0
II.PFO.BHZ.00 2021-02-10T13:32:49.65 10.0 positive automatic P 52 88.7523 -3.58033 0.08639
BK.CMB.BHZ.00 2021-02-10T13:32:47.67 10.0 positive automatic P 47 88.201 -2.85374 0.0897342
AK.GAMB.BHZ. 2021-02-10T13:32:44.61 10.0 positive automatic P 7 87.6382 -3.11552 0.108895
IU.MA2.BHZ.00 2021-02-10T13:32:42.22 10.0 negative automatic sP 350 84.1912 7.70408 0
BK.SAO.BHZ.00 2021-02-10T13:32:40.92 10.0 positive automatic P 48 86.8186 -2.88289 0.100409
GE.SNAA.BHZ. 2021-02-10T13:32:34.26 10.0 negative automatic P 182 85.3723 -2.48597 0.117277
IU.CHTO.BHZ.00 2021-02-10T13:32:18.72 10.0 positive automatic P 294 82.1946 -1.68544 0.14162
RM.SLV.BHZ. 2021-02-10T13:32:03.67 10.0 positive automatic P 299 79.3077 -1.32206 0.169406
IU.PET.BHZ.00 2021-02-10T13:32:00.03 10.0 positive automatic PcP 352 76.7142 -1.88542 0
AK.ATKA.BHZ. 2021-02-10T13:31:48.53 10.0 negative automatic P 9 76.1028 1.51938 0.207319
IU.ADK.BHZ.00 2021-02-10T13:31:45.75 10.0 positive automatic pP 7 75.4632 2.379 0.214769
GE.GSI.BHZ. 2021-02-10T13:31:44.92 10.0 positive automatic P 278 75.7649 -0.171443 0.211698
IU.INCN.BHZ.00 2021-02-10T13:31:37.02 10.0 positive automatic pP 324 73.6508 4.19646 0.213797
IU.YSS.BHZ.00 2021-02-10T13:31:35.95 10.0 positive automatic P 340 74.4996 -1.85639 0.235689
II.RPN.BHZ.00 2021-02-10T13:31:28.27 10.0 positive automatic PcP 112 70.6246 -7.50681 0
IU.QSPA.BHZ.00 2021-02-10T13:30:50.27 10.0 negative automatic P 180 67.061 -2.71864 0.316553
MY.SBM.BHZ. 2021-02-10T13:30:26.97 10.0 positive automatic P 285 63.0486 0.526141 0.281718
MY.KKM.BHZ. 2021-02-10T13:30:12.57 10.0 positive automatic P 291 61.2761 -2.0877 0.367101
MY.LDM.BHZ. 2021-02-10T13:30:00.67 10.0 positive automatic P 292 58.8783 2.5835 0.390402
IU.CASY.BHZ.00 2021-02-10T13:29:50.37 10.0 negative automatic P 205 57.6126 1.17043 0.435867
GT.VNDA.BHZ.00 2021-02-10T13:29:31.05 10.0 positive automatic P 183 54.8408 1.63257 0.455938
IU.SBA.BHZ.00 2021-02-10T13:29:30.85 10.0 positive automatic P 181 55.0211 0.136483 0.463621
II.KAPI.BHZ.00 2021-02-10T13:29:15.75 10.0 positive automatic P 281 52.9902 -0.163416 0.499931
AU.GIRL.BHZ.00 2021-02-10T13:29:14.63 10.0 negative automatic P 258 52.4693 2.60486 0.508036
GE.LUWI.BHZ. 2021-02-10T13:29:10.42 10.0 negative automatic P 288 52.0866 1.25882 0
AU.MORW.BHZ. 2021-02-10T13:28:54.97 10.0 negative automatic P 250 49.8198 2.81852 0.563219
GE.MMRI.BHZ. 2021-02-10T13:28:48.37 10.0 positive automatic P 279 49.2648 0.484184 0.565837
GE.TNTI.BHZ. 2021-02-10T13:28:46.22 10.0 positive automatic P 293 49.0235 0.201402 0
IU.NWAO.BHZ.00 2021-02-10T13:28:42.67 10.0 positive automatic P 246 48.4895 0.695657 0.572115
GE.SANI.BHZ. 2021-02-10T13:28:42.07 10.0 positive automatic P 289 48.7841 -2.11224 0.560796
IU.MBWA.BHZ.00 2021-02-10T13:28:35.47 10.0 negative automatic P 262 47.7955 -1.10735 0.619269
GE.SOEI.BHZ. 2021-02-10T13:28:32.17 10.0 negative automatic P 278 46.9852 1.75494 0.590539
GE.BNDI.BHZ. 2021-02-10T13:28:14.27 10.0 positive automatic P 288 44.1668 6.35281 0
IU.WAKE.BHZ.00 2021-02-10T13:27:58.95 10.0 negative automatic P 353 42.4217 5.13196 0
AU.FITZ.BHZ. 2021-02-10T13:27:58.63 10.0 negative automatic P 268 43.0792 -0.546047 0.689092
AU.KDU.BHZ.00 2021-02-10T13:27:19.28 10.0 negative automatic P 279 38.4243 -1.44729 0.751159
G.PPTF.BHZ.00 2021-02-10T13:27:06.10 10.0 negative automatic P 89 36.7838 -0.844629 0.810598
GE.GENI.BHZ. 2021-02-10T13:27:04.17 10.0 positive automatic P 299 36.5252 -0.456546 0.744861
II.WRAB.BHZ.00 2021-02-10T13:26:46.15 10.0 negative automatic P 268 34.6353 -2.2966 0.864616
AU.MCQ.BHZ.00 2021-02-10T13:26:37.05 10.0 positive automatic P 193 32.9987 2.90671 0.811147
AU.MANU.BHZ.00 2021-02-10T13:26:25.68 10.0 positive automatic P 308 31.3491 5.99246 0
AU.HTT.BHZ. 2021-02-10T13:26:11.32 10.0 positive automatic P 242 30.4672 -0.68116 0.909927
II.TAU.BHZ.00 2021-02-10T13:25:56.27 10.0 positive automatic P 219 28.3387 3.25282 0.930233
IU.RAR.BHZ.00 2021-02-10T13:25:40.15 10.0 negative automatic P 92 26.6136 2.61676 0.898876
AU.QLP.BHZ. 2021-02-10T13:25:22.45 10.0 negative automatic P 256 25.0137 -0.616517 0.888889
AU.MILA.BHZ.00 2021-02-10T13:25:13.68 10.0 positive automatic P 229 23.9079 0.597895 0.930233
IU.TARA.BHZ.00 2021-02-10T13:25:13.85 10.0 negative automatic P 3 24.2647 -2.35789 0
IU.CTAO.BHZ.00 2021-02-10T13:25:10.72 10.0 negative automatic P 272 23.6487 0.0902164 0.91954
G.CAN.BHZ.00 2021-02-10T13:25:07.00 10.0 negative automatic P 233 23.1995 0.95577 0.888889
NZ.ODZ.HHZ.10 2021-02-10T13:24:52.04 10.0 negative automatic P 182 22.182 -3.13701 0.865801
AU.RIV.BHZ. 2021-02-10T13:24:44.47 10.0 positive automatic P 234 20.9438 2.64275 0.91954
NZ.KHZ.HHZ.10 2021-02-10T13:24:25.32 10.0 positive automatic P 176 19.6143 -2.05866 0.925926
AU.ARMA.BHZ. 2021-02-10T13:24:25.87 10.0 negative automatic P 243 19.2785 1.98511 0.869565
IU.SNZO.BHZ.00 2021-02-10T13:24:14.52 10.0 negative automatic P 173 18.6274 -2.04187 0.941176
IU.AFI.BHZ.00 2021-02-10T13:24:12.32 10.0 positive automatic P 63 18.1805 0.908332 0.963855
IU.HNR.BHZ.00 2021-02-10T13:24:01.05 10.0 positive automatic P 319 17.4168 -0.811477 0.963855
IU.FUNA.BHZ.00 2021-02-10T13:23:46.75 10.0 positive automatic P 28 16.1246 1.27121 0
NZ.URZ.HHZ.10 2021-02-10T13:23:44.10 10.0 negative automatic P 164 16.1129 -1.2374 0.934579
NZ.OUZ.HHZ.10 2021-02-10T13:22:52.75 10.0 negative automatic P 172 12.4795 -3.58289 0.980392
II.MSVF.BHZ.00 2021-02-10T13:21:54.97 10.0 negative automatic P 51 7.9835 0.0926766 0.888889
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download