Earthquake with magnitude of Mwp 6.3 on date 20-09-2017 and time 22:09:50 (Italy) in region Vanuatu Islands [Land: Vanuatu]

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

  • 20-09-2017 20:09:50 (UTC)
  • 20-09-2017 22:09:50 (UTC +02:00) Italian time
  • 21-09-2017 07:09:50 (UTC +11:00) local time in the region of the earthquake (Pacific/Efate)

and geographic coordinates (lat, lon) -18.76, 169.03 at 203 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 5.6
Mwp 6.3

Mwpd 6.2
2017-09-20
20:09:50
-18.76 169.03 203 2017-09-20
20:23:45
Sala Sismica INGV-Roma 50296181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-09-20 20:09:50
Latitude -18.76
Longitude 169.03
Depth (km) 203 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 50296181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 5937
Semi-minor axis of confidence ellipse (meter) 4242
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 273
Circular confidence region, given by single value of horizontal uncertainty (meter) 5351.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 39.5142
Number of associated phases, regardless of their use for origin computation 85
Number of defining phases 85
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.22877
Epicentral distance of station closest to the epicenter (degree) 2.87498
Epicentral distance of station farthest from the epicenter (degree) 81.39931
Number of stations at which the event was observed 80
Number of stations from which data was used for origin computation 80
Magnitudes information

Mwpd:6.2

Field Value
Value 6.2
Uncertainty 0.2
Num. used stations 43
Type of magnitude Mwpd
Reference to an origin 50296181
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-09-20 20:23:45

Mwp:6.3

Field Value
Value 6.3
Uncertainty 0.2
Num. used stations 53
Type of magnitude Mwp
Reference to an origin 50296181
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-09-20 20:23:45

mb:5.6

Field Value
Value 5.6
Uncertainty 0.1
Num. used stations 68
Type of magnitude mb
Reference to an origin 50296181
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-09-20 20:23:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
G.PAF.BHZ.00 2017-09-20T20:21:46.60 10.0 negative automatic P 221 81.3993 2.44404 0.16213
IU.MA2.BHZ.00 2017-09-20T20:21:34.02 10.0 positive automatic P 351 79.744 -1.40323 0.173215
GE.GSI.BHZ. 2017-09-20T20:20:57.67 10.0 positive automatic P 277 72.9127 0.680923 0.241565
AK.ATKA.BHZ. 2017-09-20T20:20:52.15 10.0 negative automatic P 11 72.4513 -2.11645 0.25008
MY.KSM.BHZ. 2017-09-20T20:20:54.02 10.0 positive automatic sP 283 61.1036 3.40836 0
IU.PET.BHZ.00 2017-09-20T20:20:51.95 10.0 positive automatic P 353 72.3442 -1.6926 0.236753
IU.YSS.BHZ.00 2017-09-20T20:20:38.35 10.0 positive automatic P 341 69.8498 -0.327892 0.275894
GE.BKNI.BHZ. 2017-09-20T20:20:36.17 10.0 positive automatic P 278 69.3244 0.713542 0.282011
IU.INCN.BHZ.00 2017-09-20T20:20:32.72 10.0 positive automatic P 325 68.9498 -0.431344 0.300386
RM.DLV.BHZ. 2017-09-20T20:20:22.87 10.0 positive automatic P 292 67.1129 0.949895 0.294785
II.ERM.BHZ.00 2017-09-20T20:20:10.62 10.0 positive automatic P 339 65.3084 0.357949 0.330989
JP.JTU.BHZ. 2017-09-20T20:20:08.65 10.0 positive automatic P 325 65.2597 -1.30518 0.316869
JP.JTM.BHZ. 2017-09-20T20:20:06.65 10.0 positive automatic P 337 64.97 -1.45122 0.335295
JP.JSD.BHZ. 2017-09-20T20:19:59.25 10.0 positive automatic P 333 63.7317 -0.824464 0.359654
JP.JNU.BHZ. 2017-09-20T20:19:56.75 10.0 positive automatic P 325 63.3945 -1.18828 0.364178
JP.YOJ.BHZ. 2017-09-20T20:19:50.05 10.0 positive automatic P 312 62.2699 -0.387248 0.379476
IU.MAJO.BHZ.00 2017-09-20T20:19:50.47 10.0 positive automatic P 332 62.5004 -1.55649 0.343591
JP.JMN.BHZ. 2017-09-20T20:19:49.75 10.0 positive automatic P 327 62.2726 -0.794544 0.354143
AU.XMI.BHZ. 2017-09-20T20:19:47.37 10.0 negative automatic P 268 61.5639 1.59426 0.38466
G.INU.BHZ.00 2017-09-20T20:19:47.91 10.0 positive automatic P 331 62.0383 -1.00314 0.382665
JP.JGF.BHZ. 2017-09-20T20:19:47.85 10.0 positive automatic P 331 62.0981 -1.54061 0.37296
MY.KSM.BHZ. 2017-09-20T20:19:42.87 10.0 positive automatic P 283 61.1036 0.210329 0.395672
JP.JSG.BHZ. 2017-09-20T20:19:41.10 10.0 positive automatic P 331 60.9512 -0.541594 0.388561
IU.CASY.BHZ.00 2017-09-20T20:19:37.47 10.0 negative automatic P 203 60.4241 -0.602483 0.415148
JP.JOW.BHZ. 2017-09-20T20:19:37.45 10.0 positive automatic P 318 60.3417 -0.097965 0.396982
MY.SBM.BHZ. 2017-09-20T20:19:34.22 10.0 positive automatic P 285 59.7313 0.809865 0.405507
IU.SBA.BHZ.00 2017-09-20T20:19:29.27 10.0 negative automatic P 181 59.0942 0.252009 0.387468
MY.KKM.BHZ. 2017-09-20T20:19:19.37 10.0 positive automatic P 290 57.6379 0.282349 0.425533
JP.JMZ.BHZ. 2017-09-20T20:19:19.35 10.0 negative automatic P 319 57.7666 -0.503657 0.423705
MY.LDM.BHZ. 2017-09-20T20:19:03.67 10.0 positive automatic P 291 55.2197 1.7461 0.460608
GE.JAGI.BHZ. 2017-09-20T20:18:53.42 10.0 positive automatic P 273 54.11 -0.543303 0.499889
JP.JCJ.BHZ. 2017-09-20T20:18:42.05 10.0 positive automatic P 330 52.7262 -1.85048 0.509815
IU.POHA.BHZ.00 2017-09-20T20:18:38.92 10.0 negative automatic P 44 51.8785 0.931339 0.523244
G.KIP.BHZ.00 2017-09-20T20:18:34.37 10.0 negative automatic P 40 51.5266 -0.692688 0.541464
AU.GIRL.BHZ. 2017-09-20T20:18:33.87 10.0 negative automatic P 256 51.1226 1.80685 0.548116
II.KAPI.BHZ.00 2017-09-20T20:18:24.22 10.0 positive automatic P 279 49.9461 0.915893 0.518352
AU.MORW.BHZ. 2017-09-20T20:18:17.30 10.0 negative automatic P 247 49.1188 0.232164 0.581708
GE.LUWI.BHZ. 2017-09-20T20:18:14.22 10.0 positive automatic P 286 48.6662 0.647349 0.505231
IU.NWAO.BHZ.00 2017-09-20T20:18:10.42 10.0 positive automatic P 242 48.2054 0.294224 0.597353
GE.MMRI.BHZ. 2017-09-20T20:17:56.42 10.0 positive automatic P 276 46.4296 0.0165087 0.586472
IU.MBWA.BHZ.00 2017-09-20T20:17:55.52 10.0 positive automatic P 258 46.2135 0.790589 0.647609
GE.SANI.BHZ. 2017-09-20T20:17:47.92 10.0 positive automatic P 286 45.3227 0.175773 0.633015
GE.SOEI.BHZ. 2017-09-20T20:17:40.27 10.0 positive automatic P 275 44.1836 1.33572 0.653155
GE.FAKI.BHZ. 2017-09-20T20:16:59.07 10.0 positive automatic P 289 39.3043 -0.199805 0.760673
IU.XMAS.BHZ.00 2017-09-20T20:16:56.47 10.0 positive automatic P 61 38.9788 -0.0800638 0.723929
AU.FORT.BHZ. 2017-09-20T20:16:55.50 10.0 positive automatic P 244 38.845 0.0222909 0.788408
AU.WRKA.BHZ. 2017-09-20T20:16:49.87 10.0 positive automatic P 253 38.1668 -0.0409773 0.782963
IU.WAKE.BHZ.00 2017-09-20T20:16:45.90 10.0 positive automatic P 356 38.116 -3.48661 0.803088
AU.MTN.BHZ. 2017-09-20T20:16:39.05 10.0 positive automatic P 274 36.8688 0.09992 0.772031
AU.KDU.BHZ. 2017-09-20T20:16:28.85 10.0 positive automatic P 274 35.642 0.303696 0.864466
GE.GENI.BHZ. 2017-09-20T20:16:02.57 10.0 positive automatic P 296 32.5455 0.646178 0.876974
II.WRAB.BHZ.00 2017-09-20T20:16:02.47 10.0 positive automatic P 262 32.6731 -0.617658 0.817318
AU.HTT.BHZ. 2017-09-20T20:15:45.57 10.0 negative automatic P 235 30.5919 0.60669 0.928568
II.TAU.BHZ.00 2017-09-20T20:15:42.52 10.0 positive automatic P 212 30.308 0.147374 0.902782
AU.TOO.BHZ. 2017-09-20T20:15:21.22 10.0 positive automatic P 223 27.8509 0.47137 0.97561
NZ.ODZ.HHZ.10 2017-09-20T20:15:05.58 10.0 positive automatic P 177 26.3143 -1.43759 0.990099
AU.COEN.BHZ. 2017-09-20T20:14:58.47 10.0 positive automatic P 277 25.2416 1.08322 0.941176
AU.MILA.BHZ. 2017-09-20T20:14:57.95 10.0 negative automatic P 219 25.2475 0.41897 0.963855
G.CAN.BHZ.00 2017-09-20T20:14:49.05 10.0 positive automatic P 223 24.2437 0.616692 0.952381
AU.QLP.BHZ. 2017-09-20T20:14:47.87 10.0 positive automatic P 247 24.1253 0.591638 0.930233
NZ.KHZ.HHZ.10 2017-09-20T20:14:43.86 10.0 negative automatic P 172 23.9592 -1.8876 0.294985
IU.SNZO.BHZ.00 2017-09-20T20:14:35.92 10.0 negative automatic P 169 23.0602 -1.65418 0.930233
AU.RIV.BHZ. 2017-09-20T20:14:27.52 10.0 negative automatic P 223 21.9238 0.339131 0.952381
AU.RABL.BHZ. 2017-09-20T20:14:25.75 10.0 positive automatic P 309 21.9939 -2.12226 0.941176
IU.CTAO.BHZ.00 2017-09-20T20:14:23.27 10.0 positive automatic P 263 21.5015 0.215729 0.909091
NZ.URZ.HHZ.10 2017-09-20T20:14:13.83 10.0 negative automatic P 162 20.7275 -1.02927 0.970874
AU.ARMA.BHZ. 2017-09-20T20:14:05.05 10.0 positive automatic P 230 19.6059 1.95501 0.941176
AU.NIUE.BHZ. 2017-09-20T20:14:05.02 10.0 positive automatic P 94 19.8966 -1.00511 0.941176
IU.AFI.BHZ.00 2017-09-20T20:13:59.17 10.0 positive automatic P 78 19.0334 2.30064 0.909091
AU.EIDS.BHZ. 2017-09-20T20:13:46.65 10.0 negative automatic P 245 17.8739 2.41713 0.162602
NZ.OUZ.HHZ.10 2017-09-20T20:13:34.39 10.0 positive automatic P 167 16.9475 0.303257 0.985222
IU.RAO.BHZ.00 2017-09-20T20:13:21.77 10.0 negative automatic P 134 15.845 -0.204711 0.808081
AU.LHI.BHZ. 2017-09-20T20:13:19.67 10.0 positive automatic P 213 15.6059 0.327361 0.610687
IU.FUNA.BHZ.00 2017-09-20T20:13:05.37 10.0 positive automatic P 45 14.2157 2.94132 0.824742
IU.HNR.BHZ.00 2017-09-20T20:12:44.55 10.0 negative automatic P 315 12.8175 -0.522189 0.97561
AU.NFK.BHZ. 2017-09-20T20:12:12.77 10.0 positive automatic P 185 10.3279 -0.639056 0.898876
II.MSVF.BHZ.00 2017-09-20T20:11:53.22 10.0 negative automatic P 85 8.6286 1.70726 0.909091
ND.KOUNC.BHZ.00 2017-09-20T20:11:03.34 10.0 negative automatic P 247 4.8104 1.30968 0.97561
ND.ONTNC.BHZ.00 2017-09-20T20:10:54.90 10.0 positive automatic P 214 4.2864 -0.531404 0.952381
G.DZM.BHZ.00 2017-09-20T20:10:52.45 10.0 positive automatic P 216 4.1005 -0.795579 0.952381
ND.MARNC.BHZ.00 2017-09-20T20:10:35.94 10.0 positive automatic P 199 2.875 -2.35755 0.816327
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