INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of Mwp 6.3 on date 16-09-2018 and time 23:11:49 (Italy) in region South of Fiji Islands [Sea]

A magnitude Mwp 6.3 earthquake occured in region: South of Fiji Islands [Sea], on

  • 16-09-2018 21:11:49 (UTC)
  • 16-09-2018 23:11:49 (UTC +02:00) Italian time
  • 17-09-2018 09:11:49 (UTC +12:00) local time in the region of the earthquake (Pacific/Fiji)

and geographic coordinates (lat, lon) -25.4, 178.37 at 584 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 5.8
Mwp 6.3

Mwpd 6.5
2018-09-16
21:11:49
-25.4 178.37 584 2018-09-16
21:28:10
Sala Sismica INGV-Roma 61019161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-09-16 21:11:49
Latitude -25.40
Longitude 178.37
Depth (km) 584 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 61019161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 11900
Semi-minor axis of confidence ellipse (meter) 4084
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 337
Circular confidence region, given by single value of horizontal uncertainty (meter) 10098.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 48.0313
Number of associated phases, regardless of their use for origin computation 72
Number of defining phases 72
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.58923
Epicentral distance of station closest to the epicenter (degree) 7.65741
Epicentral distance of station farthest from the epicenter (degree) 78.71163
Number of stations at which the event was observed 60
Number of stations from which data was used for origin computation 60
Magnitudes information

Mwpd:6.5

Field Value
Value 6.5
Uncertainty 0.2
Num. used stations 31
Type of magnitude Mwpd
Reference to an origin 61019161
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-09-16 21:28:10

Mwp:6.3

Field Value
Value 6.3
Uncertainty 0.1
Num. used stations 38
Type of magnitude Mwp
Reference to an origin 61019161
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-09-16 21:28:10

mb:5.8

Field Value
Value 5.8
Uncertainty 0.1
Num. used stations 46
Type of magnitude mb
Reference to an origin 61019161
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-09-16 21:28:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GE.BKNI.BHZ. 2018-09-16T21:22:50.32 10.0 negative automatic P 276 78.7116 -0.995108 0
IU.PMSA.BHZ.00 2018-09-16T21:22:48.72 10.0 negative automatic P 157 77.89 1.79077 0.195535
GE.LUWI.BHZ. 2018-09-16T21:22:48.22 10.0 positive automatic pP 285 58.7923 3.74193 0
IU.TATO.BHZ.00 2018-09-16T21:22:27.52 10.0 negative automatic P 308 74.5435 -1.08381 0.214608
GE.PMBI.BHZ. 2018-09-16T21:22:28.92 10.0 positive automatic P 274 74.0123 3.32495 0
JP.JTM.BHZ. 2018-09-16T21:22:27.90 10.0 positive automatic P 332 74.6987 -1.56717 0
GE.MMRI.BHZ. 2018-09-16T21:22:25.97 10.0 positive automatic pP 277 55.7957 3.58444 0
JP.JSD.BHZ. 2018-09-16T21:22:22.60 10.0 negative automatic P 328 73.7467 -1.5169 0.238541
JP.JNU.BHZ. 2018-09-16T21:22:22.55 10.0 positive automatic P 320 73.927 -2.65313 0
JP.YOJ.BHZ. 2018-09-16T21:22:19.35 10.0 negative automatic P 309 73.1534 -1.3764 0.239349
JP.JMN.BHZ. 2018-09-16T21:22:16.30 10.0 positive automatic P 322 72.6745 -1.78364 0
IU.MAJO.BHZ.00 2018-09-16T21:22:14.92 10.0 negative automatic P 327 72.5865 -2.63178 0.257478
G.INU.BHZ.00 2018-09-16T21:22:13.86 10.0 negative automatic P 326 72.2357 -1.62591 0.24935
GE.SMRI.BHZ. 2018-09-16T21:21:49.37 10.0 positive automatic P 273 67.0734 4.54583 0.204692
C1.VA02.BHZ. 2018-09-16T21:21:27.98 10.0 negative automatic P 109 63.795 3.61764 0.35093
II.RPN.BHZ.00 2018-09-16T21:21:27.97 10.0 positive automatic P 109 63.8899 2.99836 0.366749
GE.JAGI.BHZ. 2018-09-16T21:21:18.97 10.0 positive automatic P 273 63.1378 -1.22307 0.368125
GE.LUWI.BHZ. 2018-09-16T21:20:50.42 10.0 negative automatic P 285 58.7923 -1.31432 0.198134
AU.GIRL.BHZ. 2018-09-16T21:20:48.62 10.0 positive automatic P 258 58.0717 1.70458 0.43471
IU.CASY.BHZ.00 2018-09-16T21:20:45.62 10.0 positive automatic P 206 58.0083 -0.851353 0.451575
GE.MMRI.BHZ. 2018-09-16T21:20:31.32 10.0 negative automatic P 277 55.7957 -0.0839796 0.45265
GE.TNTI.BHZ. 2018-09-16T21:20:29.87 10.0 negative automatic P 290 55.7594 -1.26794 0.424254
GE.SANI.BHZ. 2018-09-16T21:20:28.02 10.0 negative automatic P 286 55.4986 -1.31517 0.467645
AU.MORW.BHZ. 2018-09-16T21:20:25.10 10.0 positive automatic P 251 54.8953 -0.103385 0.500042
GE.SOEI.BHZ. 2018-09-16T21:20:16.57 10.0 negative automatic P 277 53.5078 0.963915 0.486819
IU.SBA.BHZ.00 2018-09-16T21:20:11.57 10.0 negative automatic P 183 52.7308 1.63425 0.477024
IU.POHA.BHZ.00 2018-09-16T21:20:03.52 10.0 negative automatic P 32 51.7893 -0.0295188 0.525239
GE.BNDI.BHZ. 2018-09-16T21:19:56.07 10.0 negative automatic P 286 50.8781 -0.577193 0.255117
IU.GUMO.BHZ.00 2018-09-16T21:19:54.67 10.0 positive automatic P 316 50.8425 -1.74652 0.553345
GE.FAKI.BHZ. 2018-09-16T21:19:46.47 10.0 positive automatic P 289 49.6684 -1.39986 0.572998
GE.SAUI.BHZ. 2018-09-16T21:19:37.57 10.0 negative automatic P 283 48.0183 1.87342 0.548922
AU.MTN.BHZ. 2018-09-16T21:19:20.27 10.0 positive automatic P 277 46.103 -1.08428 0.634785
AU.WRKA.BHZ. 2018-09-16T21:19:13.02 10.0 negative automatic P 259 45.0226 -0.21285 0.670086
AU.KDU.BHZ. 2018-09-16T21:19:11.87 10.0 negative automatic P 278 44.9635 -0.812366 0.671179
AU.FORT.BHZ. 2018-09-16T21:19:07.45 10.0 negative automatic P 251 44.3452 -0.526733 0.691092
IU.JOHN.BHZ.00 2018-09-16T21:19:05.07 10.0 positive automatic P 17 43.7447 1.74998 0.693913
GE.GENI.BHZ. 2018-09-16T21:18:59.27 10.0 negative automatic P 296 43.232 -0.0926576 0.627111
G.TAOE.BHZ.00 2018-09-16T21:18:57.16 10.0 negative automatic P 75 42.715 1.68321 0.703124
II.KWJN.BHZ.00 2018-09-16T21:18:04.05 10.0 negative automatic P 342 36.2514 0.414607 0.793607
IU.XMAS.BHZ.00 2018-09-16T21:18:02.55 10.0 positive automatic P 44 36.0735 0.37515 0.825551
AU.COEN.BHZ. 2018-09-16T21:17:53.22 10.0 negative automatic P 282 34.9266 0.472519 0.869669
AU.HTT.BHZ. 2018-09-16T21:17:53.50 10.0 positive automatic P 247 35.069 -0.507007 0.846038
IU.PMG.BHZ.00 2018-09-16T21:17:41.72 10.0 positive automatic P 293 33.6613 -0.452391 0.896513
G.PPTF.BHZ.00 2018-09-16T21:17:19.25 10.0 positive automatic P 82 30.7532 1.56825 0.874446
AU.QLP.BHZ. 2018-09-16T21:17:16.77 10.0 negative automatic P 260 30.614 0.365573 0.95124
AU.TOO.BHZ. 2018-09-16T21:17:15.05 10.0 positive automatic P 238 30.3643 0.711914 0.923341
IU.CTAO.BHZ.00 2018-09-16T21:17:12.02 10.0 negative automatic P 274 30.0146 0.725915 0.952381
AU.NIUE.BHZ. 2018-09-16T21:16:49.47 10.0 positive automatic S 62 12.5315 2.83934 0
AU.MILA.BHZ. 2018-09-16T21:16:49.00 10.0 positive automatic P 238 27.4176 1.10562 0.963855
G.CAN.BHZ.00 2018-09-16T21:16:46.90 10.0 positive automatic P 242 27.0901 0.883391 0.851064
AU.EIDS.BHZ. 2018-09-16T21:16:24.82 10.0 negative automatic P 264 24.6093 0.692117 0.963855
AU.ARMA.BHZ. 2018-09-16T21:16:21.75 10.0 positive automatic P 252 24.097 1.98916 0.97561
IU.HNR.BHZ.00 2018-09-16T21:16:14.72 10.0 negative automatic P 309 23.6803 -1.17376 0.43956
NZ.ODZ.HHZ.10 2018-09-16T21:15:46.55 10.0 positive automatic P 196 20.6107 -2.00821 0.966184
NZ.KHZ.HHZ.10 2018-09-16T21:15:17.81 10.0 negative automatic P 192 17.4761 -2.27684 0.97561
IU.FUNA.BHZ.00 2018-09-16T21:15:13.02 10.0 positive automatic P 3 16.8886 -1.68936 0.952381
ND.KOUNC.BHZ.00 2018-09-16T21:14:46.42 10.0 negative automatic P 288 13.832 0.611383 0.952381
NZ.URZ.HHZ.10 2018-09-16T21:14:32.36 10.0 positive automatic P 184 12.9076 -4.06364 0.947867
AU.NIUE.BHZ. 2018-09-16T21:14:31.52 10.0 positive automatic P 62 12.5315 -1.08927 0.952381
G.DZM.BHZ.00 2018-09-16T21:14:22.55 10.0 negative automatic P 284 11.4068 1.21293 0.909091
ND.ONTNC.BHZ.00 2018-09-16T21:14:21.49 10.0 negative automatic P 283 11.3222 1.14623 0.930233
NZ.OUZ.HHZ.10 2018-09-16T21:14:15.28 10.0 positive automatic P 202 10.6496 1.72286 0.985222
II.MSVF.BHZ.00 2018-09-16T21:13:42.82 10.0 positive automatic P 358 7.6574 -1.40791 0.869565
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