Earthquake with magnitude of Mwp 6.3 on date 18-02-2021 and time 07:37:33 (Italy) in region Vanuatu Islands [Sea: Vanuatu]

A magnitude Mwp 6.3 earthquake occured in region: Vanuatu Islands [Sea: Vanuatu], on

  • 18-02-2021 06:37:33 (UTC)
  • 18-02-2021 07:37:33 (UTC +01:00) Italian time
  • 18-02-2021 17:37:33 (UTC +11:00) local time in the region of the earthquake (Pacific/Efate)

and geographic coordinates (lat, lon) -18.9560, 167.9550 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 5.4
Mwp 6.3

Mwpd 6.5
2021-02-18
06:37:33
-18.9563 167.955 19 2021-02-18
07:00:13
Sala Sismica INGV-Roma 87266751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-18 06:37:33
Latitude -18.9563
Longitude 167.9550
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 87266751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 10897
Semi-minor axis of confidence ellipse (meter) 10350
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 166
Circular confidence region, given by single value of horizontal uncertainty (meter) 12129.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65.5135
Number of associated phases, regardless of their use for origin computation 56
Number of defining phases 56
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.82447
Epicentral distance of station closest to the epicenter (degree) 3.58167
Epicentral distance of station farthest from the epicenter (degree) 93.66127
Number of stations at which the event was observed 50
Number of stations from which data was used for origin computation 50
Magnitudes information

Mwpd:6.5

Field Value
Value 6.5
Uncertainty 0.3
Num. used stations 21
Type of magnitude Mwpd
Reference to an origin 87266751
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-02-18 07:00:13

Mwp:6.3

Field Value
Value 6.3
Uncertainty 0.2
Num. used stations 24
Type of magnitude Mwp
Reference to an origin 87266751
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-02-18 07:00:13

mb:5.4

Field Value
Value 5.4
Uncertainty 0.1
Num. used stations 30
Type of magnitude mb
Reference to an origin 87266751
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-02-18 07:00:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
US.WUAZ.BHZ.00 2021-02-18T06:50:46.43 10.0 negative automatic P 54 93.6613 -1.56248 0.0694973
US.BMO.BHZ.00 2021-02-18T06:50:43.08 10.0 negative automatic P 43 93.0126 -1.85175 0.0630539
IU.TUC.BHZ.00 2021-02-18T06:50:42.92 10.0 positive automatic P 57 92.9865 -1.84466 0.0718044
US.ELK.BHZ.00 2021-02-18T06:50:42.23 10.0 positive automatic P 48 92.7745 -1.78544 0.0714245
US.WVOR.BHZ.00 2021-02-18T06:50:40.15 10.0 positive automatic pP 45 91.1341 -2.29697 0
US.HAWA.BHZ.00 2021-02-18T06:50:38.70 10.0 positive automatic P 41 92.2421 -2.53398 0.0721194
GE.MALK.BHZ. 2021-02-18T06:50:34.12 10.0 positive automatic PcP 279 90.2939 0.806536 0
US.TPNV.BHZ.00 2021-02-18T06:50:34.95 10.0 positive automatic PcP 51 90.5572 0.213621 0
US.WVOR.BHZ.00 2021-02-18T06:50:33.80 10.0 positive automatic P 45 91.1341 -2.47445 0.0839842
GE.SNAA.BHZ. 2021-02-18T06:50:32.21 10.0 positive automatic pP 183 89.1496 -0.887905 0
IU.COLA.BHZ.00 2021-02-18T06:50:28.55 10.0 positive automatic P 17 90.3468 -3.87097 0.0870585
GE.SNAA.BHZ. 2021-02-18T06:50:26.41 10.0 positive automatic P 183 89.1496 -0.520403 0.0981922
IN.SHL.HHZ. 2021-02-18T06:50:19.10 10.0 positive automatic pP 299 86.2824 -0.0910124 0
BK.CMB.BHZ.00 2021-02-18T06:50:18.00 10.0 positive automatic P 48 88.0325 -2.64131 0
IU.BILL.BHZ.00 2021-02-18T06:50:12.72 10.0 negative automatic P 359 87.0247 -4.00864 0.110843
IU.ULN.BHZ.00 2021-02-18T06:50:10.72 10.0 negative automatic P 324 86.1164 -1.77926 0.114919
AK.GAMB.BHZ. 2021-02-18T06:49:59.27 10.0 positive automatic P 9 84.2314 -3.52165 0.139655
IU.MA2.BHZ.00 2021-02-18T06:49:35.32 10.0 positive automatic P 351 79.7758 -4.12473 0.152366
AU.MAW.BHZ. 2021-02-18T06:49:35.25 10.0 positive automatic P 202 78.0752 5.19221 0.187421
IU.QSPA.BHZ.00 2021-02-18T06:48:48.17 10.0 positive automatic P 180 70.9755 -1.14665 0.246671
JP.JKA.BHZ. 2021-02-18T06:48:24.80 10.0 positive automatic sP 339 64.5173 9.47948 0
JP.JTM.BHZ. 2021-02-18T06:48:07.95 10.0 positive automatic P 338 64.7570 -1.75832 0.331298
JP.JMN.BHZ. 2021-02-18T06:47:54.20 10.0 positive automatic P 328 61.8927 3.38761 0.376768
IU.MAJO.BHZ.00 2021-02-18T06:47:51.47 10.0 negative automatic P 333 62.2076 -1.43451 0.176025
JP.JGF.BHZ. 2021-02-18T06:47:50.10 10.0 negative automatic P 332 61.7840 0.0123823 0.369643
GE.JAGI.BHZ. 2021-02-18T06:46:48.52 10.0 positive automatic P 274 53.1070 -0.329078 0.361944
II.KAPI.BHZ.00 2021-02-18T06:46:18.30 10.0 positive automatic P 280 48.9778 0.460359 0
AU.MORW.BHZ. 2021-02-18T06:46:11.32 10.0 negative automatic P 248 48.1062 0.193376 0.607622
IU.NWAO.BHZ.00 2021-02-18T06:46:04.27 10.0 negative automatic P 242 47.2162 0.0399407 0.608625
GE.SANI.BHZ. 2021-02-18T06:45:41.37 10.0 positive automatic P 287 44.4061 -0.618091 0.635771
AU.FITZ.BHZ. 2021-02-18T06:45:06.85 10.0 negative automatic P 264 40.0326 0.49247 0.682999
GE.FAKI.BHZ. 2021-02-18T06:44:52.32 10.0 positive automatic P 290 38.4135 -0.511741 0.696674
AU.FORT.BHZ.00 2021-02-18T06:44:48.15 10.0 positive automatic P 244 37.8473 0.0821503 0.80033
AU.WRKA.BHZ.00 2021-02-18T06:44:41.40 10.0 positive automatic P 253 37.1383 -0.740606 0.795461
AU.KDU.BHZ.00 2021-02-18T06:44:20.53 10.0 positive automatic P 275 34.6453 -0.155381 0.718703
II.WRAB.BHZ.00 2021-02-18T06:43:53.57 10.0 positive automatic P 263 31.6403 -0.938407 0.907918
AU.HTT.BHZ. 2021-02-18T06:43:37.50 10.0 positive automatic P 235 29.6475 0.519445 0.909091
AU.MILA.BHZ.00 2021-02-18T06:42:50.13 10.0 positive automatic P 218 24.4582 -0.228072 0.808081
NZ.KHZ.HHZ.10 2021-02-18T06:42:43.66 10.0 positive automatic P 170 23.9310 -1.7565 0.934579
G.CAN.BHZ.00 2021-02-18T06:42:39.75 10.0 positive automatic P 222 23.4161 -0.983272 0.816327
AU.QLP.BHZ. 2021-02-18T06:42:36.85 10.0 positive automatic P 246 23.1165 -0.651704 0.860215
IU.SNZO.BHZ.00 2021-02-18T06:42:35.75 10.0 positive automatic P 167 23.0819 -1.37193 0
NZ.URZ.HHZ.10 2021-02-18T06:42:12.35 10.0 negative automatic P 159 20.8817 -1.26688 0.943396
AU.NIUE.BHZ. 2021-02-18T06:42:12.17 10.0 negative automatic P 94 20.8961 -1.60275 0.898876
IU.AFI.BHZ.00 2021-02-18T06:42:05.00 10.0 positive automatic P 78 20.0676 1.1061 0.909091
AU.ARMA.BHZ. 2021-02-18T06:41:50.75 10.0 positive automatic P 229 18.7062 0.67795 0.8
NZ.OUZ.HHZ.10 2021-02-18T06:41:33.05 10.0 positive automatic P 164 17.0132 3.57971 0.921659
AU.EIDS.BHZ. 2021-02-18T06:41:27.87 10.0 positive automatic P 245 16.8719 0.142819 0.879121
IU.FUNA.BHZ.00 2021-02-18T06:41:07.77 10.0 positive automatic P 48 15.0864 3.06919 0.851064
IU.HNR.BHZ.00 2021-02-18T06:40:27.22 10.0 negative automatic P 320 12.2746 0.818152 0.941176
II.MSVF.BHZ.00 2021-02-18T06:39:53.02 10.0 negative automatic P 84 9.6585 2.30059 0.833333
G.SANVU.BHZ.00 2021-02-18T06:38:21.25 10.0 negative automatic P 348 3.5817 -5.9058 0.106667
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