Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mwp 5.8 on date 05-09-2023 and time 02:55:29 (Italy) in region South of Fiji Islands [Sea: Fiji]

A magnitude Mwp 5.8 earthquake occured in region: South of Fiji Islands [Sea: Fiji], on

  • 05-09-2023 00:55:29 (UTC)
  • 05-09-2023 02:55:29 (UTC +02:00) Italian time
  • 05-09-2023 12:55:29 (UTC +12:00) local time in the region of the earthquake (Pacific/Fiji)

and geographic coordinates (lat, lon) -23.6880, 175.5630 at 43 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 5.5
Mwp 5.8
Mwpd 5.9 		2023-09-05
00:55:29		 -23.6883 175.563 43 2023-09-05
01:09:26		 Sala Sismica INGV-Roma 120765871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-05 00:55:29
Latitude -23.6883
Longitude 175.5630
Depth (km) 43 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 120765871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 14458086
Semi-minor axis of confidence ellipse (meter) 7953139
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 247
Circular confidence region, given by single value of horizontal uncertainty (meter) 12867500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72.0442
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 39
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.874551
Epicentral distance of station closest to the epicenter (degree) 6.38272
Epicentral distance of station farthest from the epicenter (degree) 81.75200
Number of stations at which the event was observed 39
Number of stations from which data was used for origin computation 39
Magnitudes information

Mwpd:5.9

Field Value
Value 5.9
Uncertainty 0.0
Num. used stations 8
Type of magnitude Mwpd
Reference to an origin 120765871
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-09-05 01:09:26

Mwp:5.8

Field Value
Value 5.8
Uncertainty 0.0
Num. used stations 7
Type of magnitude Mwp
Reference to an origin 120765871
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-09-05 01:09:26

mb:5.5

Field Value
Value 5.5
Uncertainty 0.1
Num. used stations 26
Type of magnitude mb
Reference to an origin 120765871
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-09-05 01:09:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GE.LHMI.BHZ. 2023-09-05T01:07:44.12 10.0 positive automatic P 279 9074.472 -0.0813527 0.125287
IU.PMSA.BHZ.00 2023-09-05T01:07:36.07 10.0 positive automatic P 158 8928.8178 -0.942964 0.0421556
IU.PET.BHZ.00 2023-09-05T01:07:22.70 10.0 positive automatic P 350 8669.8548 0.0293024 0.137255
IU.YSS.BHZ.00 2023-09-05T01:07:15.70 10.0 positive automatic P 338 8502.3669 0.658776 0.169305
IU.INCN.BHZ.00 2023-09-05T01:07:14.32 10.0 positive automatic P 322 8494.5969 -0.475272 0.12055
AT.SMY.BHZ. 2023-09-05T01:07:13.40 10.0 positive automatic P 359 8483.3193 -0.210544 0.144028
IU.ADK.BHZ.00 2023-09-05T01:07:09.87 10.0 positive automatic P 5 8421.8808 -0.510936 0.145458
PS.TJN.BHZ. 2023-09-05T01:07:07.51 10.0 positive automatic P 322 8361.8853 -0.561041 0.147553
JP.JKA.BHZ. 2023-09-05T01:07:02.05 10.0 positive automatic P 336 8238.642 0.373324 0.145246
JP.JTM.BHZ. 2023-09-05T01:06:47.80 10.0 positive automatic P 333 7992.1776 -0.12611 0.157851
IU.TATO.BHZ.00 2023-09-05T01:06:44.92 10.0 positive automatic P 309 7934.5464 -0.581866 0.167779
JP.JSU.BHZ. 2023-09-05T01:06:36.05 10.0 positive automatic P 320 7776.438 0.0836329 0.163027
JP.YOJ.BHZ. 2023-09-05T01:06:36.00 10.0 positive automatic P 310 7780.5006 -0.607298 0.083279
JP.JMN.BHZ. 2023-09-05T01:06:34.60 10.0 positive automatic P 324 7745.1027 -0.162577 0.157355
IU.MAJO.BHZ.00 2023-09-05T01:06:34.02 10.0 positive automatic P 329 7745.8575 0.313645 0.17196
G.INU.BHZ.00 2023-09-05T01:06:32.06 10.0 positive automatic P 327 7703.2113 0.577436 0.178009
JP.JOW.BHZ. 2023-09-05T01:06:24.55 10.0 positive automatic P 315 7559.5662 -0.149761 0.180541
GE.JAGI.BHZ. 2023-09-05T01:05:34.17 10.0 positive automatic P 274 6713.8461 0.70658 0.223695
AU.GIRL.BHZ.00 2023-09-05T01:05:04.08 10.0 positive automatic P 258 6208.2411 1.1224 0.27408
AU.MORW.BHZ. 2023-09-05T01:04:41.20 10.0 positive automatic P 250 5887.9728 -0.0942165 0.304715
GE.SANI.BHZ. 2023-09-05T01:04:39.37 10.0 positive automatic P 287 5834.8593 1.91317 0.33339
IU.NWAO.BHZ.00 2023-09-05T01:04:29.82 10.0 positive automatic P 246 5720.2962 -0.288973 0.304705
IU.MBWA.BHZ.00 2023-09-05T01:04:28.97 10.0 positive automatic P 261 5698.8288 0.210955 0.329199
IU.GUMO.BHZ.00 2023-09-05T01:04:03.32 10.0 positive automatic P 318 5311.6719 1.38007 0.341878
GE.FAKI.BHZ. 2023-09-05T01:03:53.52 10.0 positive automatic P 290 5182.7565 0.586228 0.292618
AU.WRKA.BHZ.00 2023-09-05T01:03:22.53 10.0 positive automatic P 258 4756.9494 -0.78784 0.45078
PS.JAY.BHZ. 2023-09-05T01:02:57.91 10.0 positive automatic P 297 4417.2117 -0.260078 0.579295
AU.HTT.BHZ.00 2023-09-05T01:02:03.15 10.0 positive automatic P 245 3710.5746 -0.867955 0.758396
G.PPTF.BHZ.00 2023-09-05T01:02:03.60 10.0 positive automatic P 86 3675.4431 0.551066 0.76398
AU.COEN.BHZ.00 2023-09-05T01:01:52.98 10.0 positive automatic P 282 3560.0142 0.891693 0.103143
GE.PMG.BHZ.00 2023-09-05T01:01:40.67 10.0 positive automatic P 293 3401.817 0.528362 0.891867
AU.TOO.BHZ.00 2023-09-05T01:01:26.20 10.0 positive automatic P 235 3238.869 -0.407784 0.898876
AU.QLP.BHZ. 2023-09-05T01:01:19.15 10.0 positive automatic P 258 3156.5181 -0.640138 0.869565
G.CAN.BHZ.00 2023-09-05T01:00:56.20 10.0 positive automatic P 237 2859.9039 -0.223101 0.888889
AU.RIV.BHZ. 2023-09-05T01:00:36.30 10.0 positive automatic P 239 2618.7453 -0.958223 0.740741
AU.ARMA.BHZ. 2023-09-05T01:00:23.42 10.0 positive automatic P 247 2475.189 -0.11475 0.97561
AU.EIDS.BHZ. 2023-09-05T01:00:22.90 10.0 positive automatic P 261 2475.6441 -0.316854 0.930233
IU.FUNA.BHZ.00 2023-09-05T00:59:07.05 10.0 positive automatic P 14 1726.6716 1.74754 0.930233
II.MSVF.BHZ.00 2023-09-05T00:57:00.85 10.0 positive automatic P 22 708.4797 -0.860187 0.851067
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