ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of Mwp 7.0 on date 28-04-2016 and time 19:33:23 (UTC) in region Vanuatu Islands [Sea: Vanuatu]

A magnitude Mwp 7.0 earthquake occured in region: Vanuatu Islands [Sea: Vanuatu], on

  • 28-04-2016 19:33:23 (UTC)
  • 28-04-2016 21:33:23 (UTC +02:00) Italian time
  • 29-04-2016 06:33:23 (UTC +11:00) local time in the region of the earthquake (Pacific/Efate)

and geographic coordinates (lat, lon) -16.07, 167.42 at 12 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
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
Rev 100 mb 5.7
Mwp 7.0

Mwpd 7.1
2016-04-28
19:33:23
-16.07 167.42 12 2016-04-28
19:51:28
Sala Sismica INGV-Roma 24695141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-04-28 19:33:23
Latitude -16.07
Longitude 167.42
Depth (km) 12 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 24695141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 7663
Semi-minor axis of confidence ellipse (meter) 4570
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 261
Circular confidence region, given by single value of horizontal uncertainty (meter) 6185.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 56.3419
Number of associated phases, regardless of their use for origin computation 91
Number of defining phases 91
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.69371
Epicentral distance of station closest to the epicenter (degree) 0.65696
Epicentral distance of station farthest from the epicenter (degree) 71.04887
Number of stations at which the event was observed 82
Number of stations from which data was used for origin computation 82
Magnitudes information

Mwpd:7.1

Field Value
Value 7.1
Uncertainty 0.1
Num. used stations 52
Type of magnitude Mwpd
Reference to an origin 24695141
Agency INGV
Autore Auto added
Time of creation (UTC) 2016-04-28 19:51:28

Mwp:7

Field Value
Value 7
Uncertainty 0.1
Num. used stations 57
Type of magnitude Mwp
Reference to an origin 24695141
Agency INGV
Autore Auto added
Time of creation (UTC) 2016-04-28 19:51:28

mb:5.7

Field Value
Value 5.7
Uncertainty 0.1
Num. used stations 59
Type of magnitude mb
Reference to an origin 24695141
Agency INGV
Autore Auto added
Time of creation (UTC) 2016-04-28 19:51:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GE.GSI.BHZ. 2016-04-28T19:44:40.77 10.0 positive automatic P 277 71.0489 0.105637 0.268424
IU.ADK.BHZ.00 2016-04-28T19:44:27.12 10.0 positive automatic P 10 69.3444 -3.10183 0.133147
IU.PET.BHZ.00 2016-04-28T19:44:28.65 10.0 negative automatic P 354 69.5041 -2.5583 0
AT.SMY.BHZ. 2016-04-28T19:44:25.30 10.0 positive automatic P 4 69.0405 -3.02421 0
GE.BKNI.BHZ. 2016-04-28T19:44:20.47 10.0 negative automatic pP 277 67.4517 -1.83863 0
GE.BKNI.BHZ. 2016-04-28T19:44:17.87 10.0 positive automatic P 277 67.4517 -0.497468 0.225647
IU.YSS.BHZ.00 2016-04-28T19:44:12.65 10.0 positive automatic P 342 66.8103 -1.65714 0.305117
MY.KOM.BHZ. 2016-04-28T19:44:04.32 10.0 positive automatic P 280 65.2391 0.130627 0.324324
IU.INCN.BHZ.00 2016-04-28T19:44:06.57 10.0 positive automatic P 325 65.8628 -1.65307 0.214333
GE.MNAI.BHZ. 2016-04-28T19:43:57.72 10.0 positive automatic P 273 64.2713 -0.173232 0.35247
JP.JEW.BHZ. 2016-04-28T19:43:51.05 10.0 positive automatic P 339 63.5626 -2.18292 0.304011
IU.CASY.BHZ.00 2016-04-28T19:43:43.92 10.0 positive automatic P 202 62.3124 -0.970411 0.361669
JP.JTU.BHZ. 2016-04-28T19:43:41.40 10.0 positive automatic P 325 62.1748 -2.57844 0
IU.SBA.BHZ.00 2016-04-28T19:43:41.77 10.0 positive automatic P 180 61.7775 0.464873 0.386271
JP.JTM.BHZ. 2016-04-28T19:43:40.80 10.0 positive automatic P 338 61.8935 -1.29623 0.177537
GT.VNDA.BHZ.00 2016-04-28T19:43:38.35 10.0 positive automatic P 181 61.5085 -1.15878 0.321183
IU.TATO.BHZ.00 2016-04-28T19:43:33.12 10.0 positive automatic P 312 60.7178 -1.02698 0.323966
AU.XMI.BHZ. 2016-04-28T19:43:32.87 10.0 positive automatic pP 267 60.1463 -1.28099 0
JP.JHS.BHZ. 2016-04-28T19:43:31.90 10.0 positive automatic P 328 60.564 -1.2495 0.186128
JP.JSD.BHZ. 2016-04-28T19:43:31.30 10.0 positive automatic P 334 60.6374 -2.29612 0.185648
JP.JNU.BHZ. 2016-04-28T19:43:29.35 10.0 positive automatic P 325 60.3095 -2.07586 0.0791174
JP.YOJ.BHZ. 2016-04-28T19:43:24.10 10.0 negative automatic P 312 59.3233 -0.448244 0.421044
JP.JMM.BHZ. 2016-04-28T19:43:23.60 10.0 positive automatic P 336 59.4552 -1.87597 0.400085
IU.MAJO.BHZ.00 2016-04-28T19:43:22.12 10.0 positive automatic P 333 59.4036 -3.05297 0.430124
JP.JGF.BHZ. 2016-04-28T19:43:20.10 10.0 positive automatic P 332 58.9993 -2.30269 0.196499
G.INU.BHZ.00 2016-04-28T19:43:19.36 10.0 positive automatic P 331 58.9392 -2.54354 0.325785
JP.JYT.BHZ. 2016-04-28T19:43:16.05 10.0 positive automatic P 334 58.2877 -1.29756 0.426024
MY.SBM.BHZ. 2016-04-28T19:43:12.62 10.0 positive automatic P 284 57.5877 0.146585 0.399038
JP.JOW.BHZ. 2016-04-28T19:43:10.35 10.0 negative automatic P 318 57.3144 -0.189785 0.430142
GE.SMRI.BHZ. 2016-04-28T19:43:06.32 10.0 positive automatic P 272 56.3797 2.41095 0.214491
JP.JHJ2.BHZ. 2016-04-28T19:43:02.40 10.0 negative automatic P 332 55.8045 2.62659 0.432343
MY.LDM.BHZ. 2016-04-28T19:42:39.72 10.0 positive automatic P 290 52.852 1.42878 0.474715
GE.JAGI.BHZ. 2016-04-28T19:42:36.02 10.0 positive automatic P 272 52.466 0.588738 0.460383
G.TAOE.BHZ.00 2016-04-28T19:42:30.62 10.0 positive automatic P 89 51.5712 1.74278 0.556634
IU.POHA.BHZ.00 2016-04-28T19:42:24.82 10.0 positive automatic P 47 51.0776 -0.565746 0.253318
AU.GIRL.BHZ. 2016-04-28T19:42:23.67 10.0 positive automatic P 254 50.3562 4.05103 0.547801
G.KIP.BHZ.00 2016-04-28T19:42:19.82 10.0 positive automatic P 43 50.5386 -1.1758 0.254649
JP.JCJ.BHZ. 2016-04-28T19:42:10.15 10.0 positive automatic P 330 49.6269 -3.93381 0.264504
IU.NWAO.BHZ.00 2016-04-28T19:42:03.42 10.0 positive automatic P 240 48.1656 0.508889 0.570854
II.KAPI.BHZ.00 2016-04-28T19:42:02.67 10.0 negative automatic P 278 48.0221 0.884436 0.600515
GE.LUWI.BHZ. 2016-04-28T19:41:49.82 10.0 positive automatic P 284 46.4828 0.0793738 0.560672
GE.MMRI.BHZ. 2016-04-28T19:41:35.62 10.0 positive automatic P 274 44.6664 0.237402 0.644576
GE.SANI.BHZ. 2016-04-28T19:41:22.62 10.0 positive automatic P 285 43.1219 -0.335737 0.642328
GE.TNTI.BHZ. 2016-04-28T19:41:21.77 10.0 positive automatic P 289 42.9662 0.0715586 0.537518
G.PPTF.BHZ.00 2016-04-28T19:41:09.45 10.0 negative automatic P 99 41.1111 2.78935 0.692928
IU.XMAS.BHZ.00 2016-04-28T19:40:50.85 10.0 positive automatic P 66 39.1499 0.574273 0.352467
AU.FORT.BHZ. 2016-04-28T19:40:46.80 10.0 negative automatic P 241 38.7421 -0.0852408 0.771648
AU.WRKA.BHZ. 2016-04-28T19:40:36.60 10.0 negative automatic P 250 37.5728 -0.510083 0.79473
IU.GUMO.BHZ.00 2016-04-28T19:40:31.27 10.0 positive automatic P 322 37.1007 -1.75335 0.767594
AU.MTN.BHZ. 2016-04-28T19:40:17.62 10.0 positive automatic P 270 35.2417 0.507764 0
IU.WAKE.BHZ.00 2016-04-28T19:40:15.87 10.0 positive automatic P 359 35.3598 -2.23779 0.387391
II.TAU.BHZ.00 2016-04-28T19:39:50.67 10.0 positive automatic P 208 31.8517 3.08159 0.891352
IU.RAR.BHZ.00 2016-04-28T19:39:47.82 10.0 positive automatic P 105 31.4481 3.79698 0.879323
II.WRAB.BHZ.00 2016-04-28T19:39:44.52 10.0 negative automatic P 258 31.6269 -1.13836 0.875673
AU.HTT.BHZ. 2016-04-28T19:39:39.97 10.0 negative automatic P 231 30.9871 -0.109536 0.920137
NZ.ODZ.HHZ.10 2016-04-28T19:39:25.55 10.0 positive automatic P 175 29.0996 2.2449 0.921659
AU.TOO.BHZ. 2016-04-28T19:39:21.75 10.0 negative automatic P 218 28.9185 -0.00566642 0.91954
NZ.KHZ.HHZ.10 2016-04-28T19:39:01.88 10.0 negative automatic P 170 26.8619 -1.39053 0.938967
IU.SNZO.BHZ.00 2016-04-28T19:38:54.47 10.0 positive automatic P 167 26.0093 -1.11546 0.43956
G.CAN.BHZ.00 2016-04-28T19:38:49.45 10.0 negative automatic P 217 25.3225 -0.00612811 0.909091
II.KWAJ.BHZ.00 2016-04-28T19:38:43.02 10.0 positive automatic P 0 24.8715 -2.21113 0.769231
IU.KNTN.BHZ.00 2016-04-28T19:38:41.47 10.0 positive automatic P 59 24.4547 0.0277024 0.43956
AU.MANU.BHZ. 2016-04-28T19:38:39.37 10.0 positive automatic P 303 24.2218 0.0358536 0.0549451
AU.QLP.BHZ. 2016-04-28T19:38:36.20 10.0 negative automatic P 240 23.9622 -0.780188 0.808081
NZ.URZ.HHZ.10 2016-04-28T19:38:34.40 10.0 positive automatic P 161 23.7699 -0.801548 0.873362
AU.COEN.BHZ. 2016-04-28T19:38:33.12 10.0 positive automatic P 272 23.4987 0.411687 0.987654
AU.RIV.BHZ. 2016-04-28T19:38:28.15 10.0 negative automatic P 217 23.0133 0.588673 0.930233
AU.NIUE.BHZ. 2016-04-28T19:38:13.97 10.0 negative automatic P 101 21.7862 -0.551975 0.941176
GE.PMG.BHZ.00 2016-04-28T19:38:06.32 10.0 negative automatic P 286 20.8419 1.97285 0.909091
AU.ARMA.BHZ. 2016-04-28T19:38:00.47 10.0 positive automatic P 222 20.3579 1.19364 0.941176
IU.AFI.BHZ.00 2016-04-28T19:37:57.67 10.0 positive automatic P 87 20.2003 0.172666 0.615385
NZ.OUZ.HHZ.10 2016-04-28T19:37:53.95 10.0 positive automatic P 165 19.9309 -0.502417 0.995025
AU.RABL.BHZ. 2016-04-28T19:37:45.17 10.0 positive automatic P 307 19.1238 -0.493348 0.610687
AU.EIDS.BHZ. 2016-04-28T19:37:32.20 10.0 positive automatic P 236 17.8622 1.06783 0.784314
AU.LHI.BHZ. 2016-04-28T19:37:22.05 10.0 negative automatic P 205 17.2221 -1.11295 0.610687
IU.FUNA.BHZ.00 2016-04-28T19:36:38.25 10.0 negative automatic P 58 13.7491 0.726876 0.869565
AU.NFK.BHZ. 2016-04-28T19:36:27.70 10.0 positive automatic P 178 12.9815 0.623936 0.386473
IU.HNR.BHZ.00 2016-04-28T19:35:45.22 10.0 negative automatic P 311 9.8498 1.01363 0.8
ND.ONTNC.BHZ.00 2016-04-28T19:34:54.79 10.0 positive automatic P 188 6.3035 -0.75652 0.909091
G.DZM.BHZ.00 2016-04-28T19:34:50.90 10.0 positive automatic P 189 6.072 -1.60884 0.952381
ND.KOUNC.BHZ.00 2016-04-28T19:34:41.54 10.0 positive automatic P 213 5.3781 -1.29498 0.97561
ND.MARNC.BHZ.00 2016-04-28T19:34:40.99 10.0 positive automatic P 174 5.4414 -2.7046 0.930233
G.SANVU.BHZ.00 2016-04-28T19:33:41.50 10.0 positive automatic S 341 0.657 -2.04547 0
G.SANVU.BHZ.00 2016-04-28T19:33:36.35 10.0 negative automatic P 341 0.657 0.817571 0
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