Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mwp 6.0 on date 23-03-2022 and time 21:57:00 (UTC) in region Vanuatu Islands [Sea: Vanuatu]

A magnitude Mwp 6.0 earthquake occured in region: Vanuatu Islands [Sea: Vanuatu], on

  • 23-03-2022 21:57:00 (UTC)
  • 23-03-2022 22:57:00 (UTC +01:00) Italian time
  • 24-03-2022 08:57:00 (UTC +11:00) local time in the region of the earthquake (Pacific/Efate)

and geographic coordinates (lat, lon) -15.2650, 167.4680 at 104 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 5.3
Mwp 6.0
Mwpd 6.1 		2022-03-23
21:57:00		 -15.2648 167.468 104 2022-03-23
22:13:26		 Sala Sismica INGV-Roma 102301891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-03-23 21:57:00
Latitude -15.2648
Longitude 167.4680
Depth (km) 104 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 102301891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 24615
Semi-minor axis of confidence ellipse (meter) 13390
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 10
Circular confidence region, given by single value of horizontal uncertainty (meter) 20246.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60.5026
Number of associated phases, regardless of their use for origin computation 66
Number of defining phases 66
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.51039
Epicentral distance of station closest to the epicenter (degree) 0.31391
Epicentral distance of station farthest from the epicenter (degree) 91.98355
Number of stations at which the event was observed 58
Number of stations from which data was used for origin computation 58
Magnitudes information

Mwpd:6.1

Field Value
Value 6.1
Uncertainty 0.3
Num. used stations 16
Type of magnitude Mwpd
Reference to an origin 102301891
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-03-23 22:13:26

Mwp:6.0

Field Value
Value 6.0
Uncertainty 0.2
Num. used stations 15
Type of magnitude Mwp
Reference to an origin 102301891
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-03-23 22:13:26

mb:5.3

Field Value
Value 5.3
Uncertainty 0.1
Num. used stations 40
Type of magnitude mb
Reference to an origin 102301891
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-03-23 22:13:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
US.NEW.BHZ.00 2022-03-23T22:09:54.15 10.0 negative automatic P 40 91.9835 -2.58954 0.0791442
US.ELK.BHZ.00 2022-03-23T22:09:48.53 10.0 positive automatic P 48 90.6302 -2.1991 0
AU.WRKA.BHZ.00 2022-03-23T22:09:45.93 10.0 negative automatic S 249 37.9020 -3.69489 0
GE.MALK.BHZ. 2022-03-23T22:09:43.72 10.0 positive automatic P 279 89.2663 -0.281082 0.0992015
US.HAWA.BHZ.00 2022-03-23T22:09:44.15 10.0 positive automatic P 41 89.7719 -2.25605 0
GE.HALK.BHZ. 2022-03-23T22:09:40.05 10.0 positive automatic P 277 88.5158 -0.429119 0.102113
US.TPNV.BHZ.00 2022-03-23T22:09:39.20 10.0 positive automatic P 51 88.5882 -1.87452 0
II.WRAB.BHZ.00 2022-03-23T22:09:37.17 10.0 positive automatic ScP 257 31.8484 1.26015 0
IU.COLA.BHZ.00 2022-03-23T22:09:29.97 10.0 positive automatic P 17 86.9609 -3.12533 0
IU.ULN.BHZ.00 2022-03-23T22:09:10.27 10.0 positive automatic P 324 82.8562 -2.51812 0.145876
IN.PBA.HHZ. 2022-03-23T22:08:49.10 10.0 positive automatic P 286 78.7088 -1.3502 0.168039
IU.CHTO.BHZ.00 2022-03-23T22:08:31.92 10.0 positive automatic P 295 75.5537 -0.941188 0.216362
RM.SLV.BHZ. 2022-03-23T22:08:12.77 10.0 positive automatic P 299 72.2763 -1.0288 0.242914
GE.GSI.BHZ. 2022-03-23T22:08:05.17 10.0 positive automatic P 277 70.9966 -0.866016 0.269087
MY.KUM.BHZ. 2022-03-23T22:07:54.32 10.0 positive automatic P 282 69.2735 -1.19119 0.282664
RM.DLV.BHZ. 2022-03-23T22:07:24.07 10.0 positive automatic P 292 64.4179 -0.844634 0.33466
IU.CASY.BHZ.00 2022-03-23T22:07:15.42 10.0 positive automatic P 202 63.0746 -0.473114 0.359993
GT.VNDA.BHZ.00 2022-03-23T22:07:10.38 10.0 positive automatic P 181 62.3145 -0.493441 0.0624121
II.ERM.BHZ.00 2022-03-23T22:07:01.92 10.0 positive automatic P 340 61.5091 -3.54104 0.341311
JP.JSU.BHZ. 2022-03-23T22:06:43.35 10.0 positive automatic P 323 58.7239 -3.17055 0.392461
JP.JMN.BHZ. 2022-03-23T22:06:41.90 10.0 positive automatic P 327 58.5228 -3.24833 0.413113
MY.SBM.BHZ. 2022-03-23T22:06:37.12 10.0 positive automatic P 283 57.4461 -0.460239 0.438295
II.TAU.BHZ.00 2022-03-23T22:03:21.22 10.0 negative automatic P 208 32.5828 0.166598 0.897168
MY.LDM.BHZ. 2022-03-23T22:06:02.97 10.0 positive automatic P 289 52.6286 0.0549854 0.458154
GE.JAGI.BHZ. 2022-03-23T22:06:00.02 10.0 positive automatic P 271 52.4938 -1.90154 0.538608
G.TAOE.BHZ.00 2022-03-23T22:05:55.76 10.0 positive automatic P 89 51.5103 1.02282 0.52676
AU.MORW.BHZ. 2022-03-23T22:05:36.37 10.0 positive automatic P 245 49.1803 -0.733289 0.56724
IU.NWAO.BHZ.00 2022-03-23T22:05:31.87 10.0 positive automatic P 239 48.6124 -0.911527 0.57008
II.KAPI.BHZ.00 2022-03-23T22:05:27.45 10.0 positive automatic P 277 47.9625 -0.330147 0.608881
GE.LUWI.BHZ. 2022-03-23T22:05:14.52 10.0 positive automatic P 284 46.3334 -0.556606 0.630152
IU.MBWA.BHZ.00 2022-03-23T22:05:08.70 10.0 positive automatic P 255 45.5630 -0.364923 0.636292
GE.MMRI.BHZ. 2022-03-23T22:05:00.77 10.0 positive automatic P 273 44.6623 -1.15553 0.660088
GE.SANI.BHZ. 2022-03-23T22:04:47.47 10.0 positive automatic P 284 42.9684 -0.885377 0.675073
G.PPTF.BHZ.00 2022-03-23T22:04:35.15 10.0 positive automatic P 99 41.1914 1.11247 0.742164
AU.FITZ.BHZ. 2022-03-23T22:04:23.93 10.0 positive automatic P 260 40.0849 -0.909468 0.728314
AU.FORT.BHZ.00 2022-03-23T22:04:17.20 10.0 positive automatic P 240 39.1830 -0.167247 0.763129
AU.WRKA.BHZ.00 2022-03-23T22:04:05.75 10.0 positive automatic P 249 37.9020 -0.984253 0.807522
AU.MTN.BHZ.00 2022-03-23T22:03:43.98 10.0 negative automatic P 269 35.2901 -0.501071 0
AU.KDU.BHZ.00 2022-03-23T22:03:32.03 10.0 positive automatic P 270 34.0206 -1.50646 0.856845
IU.RAR.BHZ.00 2022-03-23T22:03:13.50 10.0 positive automatic P 106 31.6143 0.935301 0.866188
II.WRAB.BHZ.00 2022-03-23T22:03:12.92 10.0 positive automatic P 257 31.8484 -1.7498 0.923748
AU.HTT.BHZ. 2022-03-23T22:03:12.32 10.0 positive automatic P 230 31.5380 0.312918 0.897998
NZ.ODZ.HHZ.10 2022-03-23T22:02:56.76 10.0 negative automatic P 175 29.8984 -0.726731 0.970874
AU.TOO.BHZ.00 2022-03-23T22:02:54.78 10.0 positive automatic P 217 29.5865 -0.0129116 0.869565
NZ.KHZ.HHZ.10 2022-03-23T22:02:35.89 10.0 positive automatic P 170 27.6472 -1.6006 0.877193
AU.MILA.BHZ.00 2022-03-23T22:02:33.85 10.0 negative automatic P 213 27.1810 0.397917 0.952381
IU.SNZO.BHZ.00 2022-03-23T22:02:28.35 10.0 positive automatic P 168 26.7860 -1.45694 0.952381
G.CAN.BHZ.00 2022-03-23T22:02:23.10 10.0 positive automatic P 216 25.9961 0.299013 0.909091
NZ.URZ.HHZ.10 2022-03-23T22:02:09.13 10.0 positive automatic P 162 24.5171 -0.171307 0.930233
AU.QLP.BHZ. 2022-03-23T22:02:08.80 10.0 positive automatic P 239 24.4121 0.428286 0.941176
AU.MANU.BHZ.00 2022-03-23T22:02:02.68 10.0 positive automatic P 302 23.8271 -0.355534 0
AU.ARMA.BHZ. 2022-03-23T22:01:36.40 10.0 positive automatic P 221 20.9891 1.67064 0.97561
NZ.OUZ.HHZ.10 2022-03-23T22:01:33.24 10.0 positive automatic P 166 20.6984 1.81585 0.956938
IU.CTAO.BHZ.00 2022-03-23T22:01:33.25 10.0 positive automatic P 253 20.7607 1.09634 0.930233
IU.AFI.BHZ.00 2022-03-23T22:01:27.70 10.0 negative automatic P 89 20.1226 2.35167 0.869565
AU.EIDS.BHZ. 2022-03-23T22:01:08.77 10.0 positive automatic P 234 18.3617 2.65761 0.97561
AU.LHI.BHZ.00 2022-03-23T22:01:03.55 10.0 positive automatic P 204 17.9748 1.70034 0.824742
IU.HNR.BHZ.00 2022-03-23T21:59:11.75 10.0 negative automatic P 308 9.3730 0.0240104 0.963855
G.DZM.BHZ.00 2022-03-23T21:58:40.36 10.0 positive automatic P 188 6.8752 2.44256 0.934579
G.SANVU.BHZ.00 2022-03-23T21:57:17.30 10.0 positive automatic P 234 0.3139 2.58715 0.97561
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