ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of Mwp 6.3 on date 20-03-2019 and time 16:24:01 (Italy) in region Vanuatu Islands [Sea: Vanuatu]

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

  • 20-03-2019 15:24:01 (UTC)
  • 20-03-2019 16:24:01 (UTC +01:00) Italian time
  • 21-03-2019 02:24:01 (UTC +11:00) local time in the region of the earthquake (Pacific/Efate)

and geographic coordinates (lat, lon) -15.62, 167.65 at 135 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 5.4
Mwp 6.3

Mwpd 6.4
2019-03-20
15:24:01
-15.62 167.65 135 2019-03-20
15:39:58
Sala Sismica INGV-Roma 66721981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-20 15:24:01
Latitude -15.62
Longitude 167.65
Depth (km) 135 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 66721981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 17519
Semi-minor axis of confidence ellipse (meter) 2894
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 223
Circular confidence region, given by single value of horizontal uncertainty (meter) 14323.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 56.3215
Number of associated phases, regardless of their use for origin computation 104
Number of defining phases 104
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.18126
Epicentral distance of station closest to the epicenter (degree) 5.87553
Epicentral distance of station farthest from the epicenter (degree) 90.781
Number of stations at which the event was observed 104
Number of stations from which data was used for origin computation 104
Magnitudes information

Mwpd:6.4

Field Value
Value 6.4
Uncertainty 0.3
Num. used stations 50
Type of magnitude Mwpd
Reference to an origin 66721981
Agency INGV
Autore Auto added
Time of creation (UTC) 2019-03-20 15:39:58

Mwp:6.3

Field Value
Value 6.3
Uncertainty 0.1
Num. used stations 49
Type of magnitude Mwp
Reference to an origin 66721981
Agency INGV
Autore Auto added
Time of creation (UTC) 2019-03-20 15:39:58

mb:5.5

Field Value
Value 5.5
Uncertainty 0.1
Num. used stations 83
Type of magnitude mb
Reference to an origin 66721981
Agency INGV
Autore Auto added
Time of creation (UTC) 2019-03-20 15:39:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
US.ELK.BHZ.00 2019-03-20T15:36:47.95 10.0 positive automatic P 48 90.7405 -0.138337 0.100524
US.BMO.BHZ.00 2019-03-20T15:36:46.70 10.0 positive automatic P 43 90.781 -1.39687 0.0910181
US.HAWA.BHZ.00 2019-03-20T15:36:43.73 10.0 positive automatic P 41 89.9232 -0.901462 0.101196
IU.SLBS.BHZ.00 2019-03-20T15:36:43.17 10.0 positive automatic P 65 89.5173 -1.00814 0.0802341
GE.HALK.BHZ. 2019-03-20T15:36:39.30 10.0 positive automatic P 277 88.727 -0.324191 0.186891
US.WVOR.BHZ.00 2019-03-20T15:36:38.95 10.0 positive automatic P 45 88.9842 -1.60029 0.0988502
US.TPNV.BHZ.00 2019-03-20T15:36:37.63 10.0 positive automatic P 51 88.6767 -1.76332 0.101749
CN.OZB.BHZ. 2019-03-20T15:36:32.55 10.0 positive automatic P 37 87.3889 0.454845 0.112254
CN.BBB.BHZ. 2019-03-20T15:36:31.73 10.0 positive automatic P 34 87.4767 -1.40035 0.0970145
IU.COLA.BHZ.00 2019-03-20T15:36:28.62 10.0 positive automatic P 17 87.2453 -1.5437 0.168023
BK.SAO.BHZ.00 2019-03-20T15:36:20.20 10.0 positive automatic P 49 84.7604 0.17138 0.11655
IN.SHL.HHZ. 2019-03-20T15:36:17.61 10.0 positive automatic P 299 84.4247 0.470402 0.122611
IU.ULN.BHZ.00 2019-03-20T15:36:11.32 10.0 positive automatic P 324 83.2414 0.381676 0.225235
IU.BILL.BHZ.00 2019-03-20T15:36:11.12 10.0 positive automatic P 360 83.6825 -1.69405 0.159051
G.PAF.BHZ.00 2019-03-20T15:36:11.10 10.0 positive automatic P 221 82.9278 1.30696 0.121758
AK.TNA.BHZ. 2019-03-20T15:36:10.95 10.0 positive automatic P 10 83.2353 0.374629 0.116004
IU.YAK.BHZ.00 2019-03-20T15:36:09.42 10.0 positive automatic P 343 83.1998 -0.344412 0.219914
AU.MAW.BHZ. 2019-03-20T15:36:01.34 10.0 positive automatic P 202 81.0615 0.401859 0.12743
IU.CHTO.BHZ.00 2019-03-20T15:35:32.32 10.0 positive automatic P 295 75.8558 0.322923 0.150783
IU.MA2.BHZ.00 2019-03-20T15:35:31.97 10.0 positive automatic P 351 76.4299 -2.26608 0.274174
RM.SLV.BHZ. 2019-03-20T15:35:13.32 10.0 positive automatic P 299 72.5963 -0.151194 0.197016
GE.GSI.BHZ. 2019-03-20T15:35:04.77 10.0 positive automatic P 277 71.2088 0.194653 0.0550464
PS.PSI.BHZ. 2019-03-20T15:34:58.51 10.0 positive automatic P 279 70.336 0.123935 0.165417
MY.KUM.BHZ. 2019-03-20T15:34:54.17 10.0 positive automatic P 282 69.5137 0.168182 0.177418
II.COCO.BHZ.00 2019-03-20T15:34:49.50 10.0 positive automatic P 263 68.5122 1.65813 0.164969
IU.PET.BHZ.00 2019-03-20T15:34:49.42 10.0 positive automatic P 354 69.0745 -1.09965 0.0829303
IU.YSS.BHZ.00 2019-03-20T15:34:34.10 10.0 positive automatic P 342 66.4469 -0.448047 0.294632
MY.KOM.BHZ. 2019-03-20T15:34:28.62 10.0 positive automatic P 279 65.3776 0.200446 0.20058
IU.INCN.BHZ.00 2019-03-20T15:34:28.82 10.0 positive automatic P 325 65.6139 0.119618 0.174246
GE.MNAI.BHZ. 2019-03-20T15:34:21.77 10.0 positive automatic P 273 64.4659 -0.222061 0.201498
JP.JKA.BHZ. 2019-03-20T15:34:18.00 10.0 positive automatic P 340 63.9605 -0.861558 0.204695
IU.CASY.BHZ.00 2019-03-20T15:34:11.27 10.0 positive automatic P 202 62.8142 -0.00770884 0.0543221
IU.SBA.BHZ.00 2019-03-20T15:34:08.35 10.0 positive automatic P 180 62.2317 -0.465026 0.224044
GT.VNDA.BHZ.00 2019-03-20T15:34:05.60 10.0 positive automatic P 181 61.9672 -1.16395 0.110322
II.ERM.BHZ.00 2019-03-20T15:34:04.17 10.0 positive automatic P 340 61.8984 -1.19146 0.218563
JP.JTU.BHZ. 2019-03-20T15:34:04.70 10.0 positive automatic P 325 61.9289 -1.43979 0.223546
JP.JTM.BHZ. 2019-03-20T15:34:01.20 10.0 positive automatic P 337 61.5577 -1.34885 0.226721
AU.XMI.BHZ. 2019-03-20T15:33:56.40 10.0 positive automatic P 267 60.3878 0.275866 0.235103
IU.TATO.BHZ.00 2019-03-20T15:33:55.77 10.0 positive automatic P 311 60.5794 -0.428573 0.233618
JP.JSD.BHZ. 2019-03-20T15:33:53.15 10.0 positive automatic P 334 60.3267 -0.452779 0.241326
JP.JNU.BHZ. 2019-03-20T15:33:51.40 10.0 positive automatic P 325 60.064 -0.470661 0.237646
MY.KSM.BHZ. 2019-03-20T15:33:47.07 10.0 positive automatic P 281 59.1556 0.296232 0.250978
JP.YOJ.BHZ. 2019-03-20T15:33:45.85 10.0 positive automatic P 312 59.1806 -0.776243 0.218753
JP.JMM.BHZ. 2019-03-20T15:33:44.75 10.0 positive automatic P 335 59.1318 -1.19728 0.360262
JP.JMN.BHZ. 2019-03-20T15:33:43.90 10.0 positive automatic P 327 58.9112 -0.792737 0.407709
IU.MAJO.BHZ.00 2019-03-20T15:33:43.92 10.0 positive automatic P 333 59.0998 -0.79664 0.313387
G.INU.BHZ.00 2019-03-20T15:33:41.31 10.0 positive automatic P 331 58.6473 -0.747436 0.302502
JP.JGF.BHZ. 2019-03-20T15:33:41.40 10.0 positive automatic P 331 58.7044 -1.13329 0.417911
MY.SBM.BHZ. 2019-03-20T15:33:37.22 10.0 positive automatic P 283 57.6932 0.531658 0.421448
JP.JSG.BHZ. 2019-03-20T15:33:34.25 10.0 positive automatic P 331 57.5573 -0.436533 0.252782
JP.JOW.BHZ. 2019-03-20T15:33:32.30 10.0 positive automatic P 318 57.1241 -0.137762 0.0656853
GE.SMRI.BHZ. 2019-03-20T15:33:31.32 10.0 positive automatic P 272 56.5806 1.75796 0.24996
MY.KKM.BHZ. 2019-03-20T15:33:20.27 10.0 positive automatic P 289 55.3343 0.286877 0.297896
JP.JHJ2.BHZ. 2019-03-20T15:33:20.30 10.0 positive automatic P 332 55.507 -0.0131425 0.265627
JP.JMZ.BHZ. 2019-03-20T15:33:14.45 10.0 positive automatic P 319 54.5227 0.80118 0.269188
GE.JAGI.BHZ. 2019-03-20T15:33:00.17 10.0 positive automatic P 271 52.6718 0.89367 0.309046
G.TAOE.BHZ.00 2019-03-20T15:32:52.84 10.0 positive automatic P 89 51.3446 0.958047 0.322164
AU.GIRL.BHZ. 2019-03-20T15:32:48.72 10.0 positive automatic P 253 50.6932 1.77579 0.337666
IU.POHA.BHZ.00 2019-03-20T15:32:45.90 10.0 positive automatic P 47 50.6092 0.0490133 0.32697
G.KIP.BHZ.00 2019-03-20T15:32:40.90 10.0 positive automatic P 43 50.0595 -0.604608 0.312396
AU.MORW.BHZ. 2019-03-20T15:32:34.60 10.0 positive automatic P 245 49.1849 0.890835 0.342204
JP.JCJ.BHZ. 2019-03-20T15:32:33.90 10.0 positive automatic P 330 49.3433 -0.241845 0.343965
IU.NWAO.BHZ.00 2019-03-20T15:32:29.82 10.0 positive automatic P 240 48.5814 0.69085 0.363291
II.KAPI.BHZ.00 2019-03-20T15:32:27.32 10.0 positive automatic P 277 48.1769 0.679851 0.307238
IU.MBWA.BHZ.00 2019-03-20T15:32:07.80 10.0 positive automatic P 255 45.6396 1.30411 0.421683
GE.SANI.BHZ. 2019-03-20T15:31:48.02 10.0 positive automatic P 284 43.2195 1.11091 0.487041
GE.SOEI.BHZ. 2019-03-20T15:31:44.52 10.0 positive automatic P 273 42.6496 1.04792 0.37356
G.PPTF.BHZ.00 2019-03-20T15:31:31.25 10.0 positive automatic P 99 40.9659 0.00596752 0.510953
AU.FITZ.BHZ. 2019-03-20T15:31:23.45 10.0 positive automatic P 260 40.1931 0.853404 0.51845
AU.FORT.BHZ. 2019-03-20T15:31:14.95 10.0 positive automatic P 240 39.155 1.07133 0.510684
IU.XMAS.BHZ.00 2019-03-20T15:31:12.00 10.0 positive automatic P 66 38.7662 0.396972 0.365882
GE.BNDI.BHZ. 2019-03-20T15:31:10.82 10.0 positive automatic P 283 38.6972 0.126512 0.572035
AU.WRKA.BHZ. 2019-03-20T15:31:04.30 10.0 positive automatic P 249 37.9354 0.717081 0.59587
GE.FAKI.BHZ. 2019-03-20T15:30:57.17 10.0 positive automatic P 286 37.0821 0.320636 0.697439
IU.GUMO.BHZ.00 2019-03-20T15:30:54.85 10.0 positive automatic P 321 36.8808 -0.841374 0.653797
AU.MTN.BHZ. 2019-03-20T15:30:43.02 10.0 positive automatic P 270 35.4582 0.29707 0.419766
AU.KDU.BHZ. 2019-03-20T15:30:32.27 10.0 positive automatic P 270 34.1925 0.631206 0.733509
II.TAU.BHZ.00 2019-03-20T15:30:16.12 10.0 positive automatic P 208 32.3538 -0.930199 0.764663
IU.RAR.BHZ.00 2019-03-20T15:30:10.12 10.0 positive automatic P 105 31.3551 1.14411 0.852032
AU.HTT.BHZ. 2019-03-20T15:30:09.17 10.0 positive automatic P 230 31.4431 0.580461 0.888595
NZ.ODZ.HHZ.10 2019-03-20T15:29:50.22 10.0 positive automatic P 176 29.5347 -0.722155 0.97561
AU.TOO.BHZ.00 2019-03-20T15:29:50.80 10.0 positive automatic P 217 29.4101 0.0120675 0.996182
AU.MILA.BHZ.00 2019-03-20T15:29:29.48 10.0 positive automatic P 214 26.9831 0.20746 0.941176
NZ.KHZ.HHZ.10 2019-03-20T15:29:29.61 10.0 positive automatic P 170 27.272 -0.825769 0.966184
IU.SNZO.BHZ.00 2019-03-20T15:29:22.42 10.0 positive automatic P 168 26.4064 -0.265773 0.963855
G.CAN.BHZ.00 2019-03-20T15:29:18.80 10.0 positive automatic P 217 25.8153 -0.345093 0.97561
AU.QLP.BHZ. 2019-03-20T15:29:06.12 10.0 positive automatic P 239 24.378 0.697678 1.15462
PS.PATS.BHZ. 2019-03-20T15:29:03.21 10.0 positive automatic P 337 24.2799 -1.5405 0.784314
NZ.URZ.HHZ.10 2019-03-20T15:29:02.74 10.0 positive automatic P 162 24.1278 0.760481 0.307244
AU.COEN.BHZ. 2019-03-20T15:29:00.27 10.0 positive automatic P 271 23.705 0.21373 1.35207
AU.RIV.BHZ. 2019-03-20T15:28:58.57 10.0 positive automatic P 216 23.5071 -0.248773 1.14051
AU.NIUE.BHZ. 2019-03-20T15:28:43.32 10.0 positive automatic P 102 21.6672 2.76679 0.754717
AU.ARMA.BHZ. 2019-03-20T15:28:32.15 10.0 positive automatic P 222 20.8395 0.455124 1.44271
NZ.OUZ.HHZ.10 2019-03-20T15:28:26.27 10.0 positive automatic P 166 20.3139 -0.125339 1.40429
IU.AFI.BHZ.00 2019-03-20T15:28:22.27 10.0 positive automatic P 88 19.9617 0.97745 0.457628
AU.RABL.BHZ.00 2019-03-20T15:28:09.23 10.0 positive automatic P 305 19.0324 -2.40836 1.36899
AU.EIDS.BHZ. 2019-03-20T15:28:05.22 10.0 positive automatic P 235 18.2976 1.23291 1.2576
IU.FUNA.BHZ.00 2019-03-20T15:27:05.77 10.0 positive automatic P 59 13.328 1.94615 0.930233
II.MSVF.BHZ.00 2019-03-20T15:26:26.62 10.0 positive automatic P 104 10.1912 2.87198 1.85864
IU.HNR.BHZ.00 2019-03-20T15:26:16.32 10.0 positive automatic P 309 9.7246 -0.646492 0.800358
ND.ONTNC.BHZ.00 2019-03-20T15:25:36.29 10.0 positive automatic P 189 6.7848 -1.28076 1.71448
G.DZM.BHZ.00 2019-03-20T15:25:32.85 10.0 positive automatic P 190 6.5543 -0.873603 1.05544
ND.KOUNC.BHZ.00 2019-03-20T15:25:23.70 10.0 positive automatic P 212 5.8769 -1.15893 2.70032
ND.MARNC.BHZ.00 2019-03-20T15:25:22.79 10.0 positive automatic P 177 5.8755 -1.05785 1.59149
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