Earthquake with magnitude of Mwp 6.1 on date 23-10-2020 and time 07:04:30 (UTC) in region South of Fiji Islands [Sea]

A magnitude Mwp 6.1 earthquake occured in region: South of Fiji Islands [Sea], on

  • 23-10-2020 07:04:30 (UTC)
  • 23-10-2020 09:04:30 (UTC +02:00) Italian time
  • 23-10-2020 20:04:30 (UTC +13:00) local time in the region of the earthquake (Pacific/Tongatapu)

and geographic coordinates (lat, lon) -25.62, -179.84 at 460 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
Reviewed
Rev100
mb 5.4
Mwp 6.1

Mwpd 6.2
2020-10-23
07:04:30
-25.62 -179.84 460 2020-10-23
07:25:32
Sala Sismica INGV-Roma 84051051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-23 07:04:30
Latitude -25.62
Longitude -179.84
Depth (km) 460 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 84051051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 6900
Semi-minor axis of confidence ellipse (meter) 6367
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 110
Circular confidence region, given by single value of horizontal uncertainty (meter) 6769.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74.711
Number of associated phases, regardless of their use for origin computation 61
Number of defining phases 61
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.57016
Epicentral distance of station closest to the epicenter (degree) 4.00184
Epicentral distance of station farthest from the epicenter (degree) 79.17761
Number of stations at which the event was observed 55
Number of stations from which data was used for origin computation 55
Magnitudes information

Mwp:6.1

Field Value
Value 6.1
Uncertainty 0.1
Num. used stations 18
Type of magnitude Mwp
Reference to an origin 84051051
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2020-10-23 07:25:32

Mwpd:6.2

Field Value
Value 6.2
Uncertainty 0.1
Num. used stations 15
Type of magnitude Mwpd
Reference to an origin 84051051
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2020-10-23 07:25:32

mb:5.4

Field Value
Value 5.4
Uncertainty 0.2
Num. used stations 41
Type of magnitude mb
Reference to an origin 84051051
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2020-10-23 07:25:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
RM.DLV.BHZ. 2020-10-23T07:15:47.12 10.0 positive automatic P 289 79.1776 0.433726 0
IU.ADK.BHZ.00 2020-10-23T07:15:36.25 10.0 negative automatic P 2 77.5467 -1.48206 0.181313
GE.MNAI.BHZ. 2020-10-23T07:15:34.17 10.0 positive automatic P 272 76.5852 1.70673 0.20341
IU.TATO.BHZ.00 2020-10-23T07:15:28.52 10.0 negative automatic P 307 75.9622 -0.496867 0.209653
JP.JMN.BHZ. 2020-10-23T07:15:16.55 10.0 negative automatic P 321 73.8494 -0.643489 0.191451
IU.MAJO.BHZ.00 2020-10-23T07:15:14.77 10.0 negative automatic P 326 73.6641 -1.34201 0.228186
MY.SBM.BHZ. 2020-10-23T07:15:02.57 10.0 positive automatic P 282 71.3522 -0.106109 0.222542
MY.KKM.BHZ. 2020-10-23T07:14:52.72 10.0 positive automatic P 288 69.6155 0.266149 0
GE.JAGI.BHZ. 2020-10-23T07:14:21.07 10.0 positive automatic P 273 64.7659 -1.32116 0.354388
II.KAPI.BHZ.00 2020-10-23T07:13:59.17 10.0 negative automatic P 279 61.2266 -0.352942 0.376041
GE.LUWI.BHZ. 2020-10-23T07:13:53.52 10.0 negative automatic P 284 60.4138 -0.567672 0.347494
IU.CASY.BHZ.00 2020-10-23T07:13:40.67 10.0 negative automatic P 206 58.5231 -0.724503 0.324532
GE.SANI.BHZ. 2020-10-23T07:13:30.62 10.0 negative automatic P 285 57.117 -1.17756 0.44304
AU.MORW.BHZ. 2020-10-23T07:13:25.75 10.0 negative automatic P 251 56.3536 -0.831016 0.459656
GE.SOEI.BHZ. 2020-10-23T07:13:19.32 10.0 negative automatic P 276 55.1413 1.06634 0.483756
IU.MBWA.BHZ.00 2020-10-23T07:13:17.42 10.0 negative automatic P 261 55.1768 -0.934607 0.494991
IU.NWAO.BHZ.00 2020-10-23T07:13:13.95 10.0 negative automatic P 247 54.5812 -0.251493 0.504497
IU.MIDW.BHZ.00 2020-10-23T07:13:07.87 10.0 negative automatic P 3 53.8838 -1.323 0.459683
IU.SBA.BHZ.00 2020-10-23T07:13:02.15 10.0 positive automatic P 184 52.6025 2.10453 0.530261
GT.VNDA.BHZ.00 2020-10-23T07:13:00.93 10.0 positive automatic P 185 52.6117 0.806548 0.517637
IU.POHA.BHZ.00 2020-10-23T07:12:50.10 10.0 negative automatic P 30 51.1502 0.241061 0.534922
GE.FAKI.BHZ. 2020-10-23T07:12:49.22 10.0 negative automatic P 288 51.2728 -1.20909 0.509261
AU.FITZ.BHZ. 2020-10-23T07:12:46.98 10.0 negative automatic P 267 50.8191 -0.136119 0.559804
IU.WAKE.BHZ.00 2020-10-23T07:12:15.87 10.0 negative automatic P 342 46.7811 -1.11218 0.593881
NZ.KHZ.HHZ.10 2020-10-23T07:11:07.53 10.0 negative automatic S 196 17.6567 -0.970945 0
AU.HTT.BHZ. 2020-10-23T07:10:54.97 10.0 positive automatic P 248 36.4804 -0.227772 0.836523
IU.XMAS.BHZ.00 2020-10-23T07:10:44.62 10.0 positive automatic P 41 35.1377 0.742294 0.72334
IU.PMG.BHZ.00 2020-10-23T07:10:44.47 10.0 negative automatic P 291 35.2448 -0.320123 0.803443
AU.RABL.BHZ.00 2020-10-23T07:10:34.83 10.0 negative automatic P 304 34.3473 -2.45672 0.760573
AU.QLP.BHZ. 2020-10-23T07:10:18.00 10.0 negative automatic P 260 32.1716 0.206466 0.916685
II.TAU.BHZ.00 2020-10-23T07:10:16.62 10.0 negative automatic P 229 31.8695 0.433328 0.934447
IU.CTAO.BHZ.00 2020-10-23T07:10:14.95 10.0 negative automatic P 273 31.6434 0.663633 0.885399
AU.TOO.BHZ.00 2020-10-23T07:10:13.83 10.0 positive automatic P 239 31.6345 -0.421798 0.951182
G.PPTF.BHZ.00 2020-10-23T07:09:54.75 10.0 positive automatic P 80 29.1894 1.66585 0.888889
AU.MILA.BHZ.00 2020-10-23T07:09:49.53 10.0 negative automatic P 239 28.6797 0.881353 0.952381
G.CAN.BHZ.00 2020-10-23T07:09:47.25 10.0 positive automatic P 243 28.416 0.925608 0.909091
NZ.URZ.HHZ.10 2020-10-23T07:09:42.58 10.0 positive automatic S 191 12.9025 5.22135 0
IU.TARA.BHZ.00 2020-10-23T07:09:40.27 10.0 positive automatic P 344 27.8665 -1.11305 0.97561
AU.RIV.BHZ. 2020-10-23T07:09:30.10 10.0 negative automatic P 245 26.3875 1.73774 0.952381
AU.EIDS.BHZ. 2020-10-23T07:09:27.37 10.0 negative automatic P 264 26.1971 0.664406 0.97561
AU.ARMA.BHZ. 2020-10-23T07:09:22.60 10.0 negative automatic P 253 25.5713 1.27244 0.963855
ND.MARNC.BHZ.00 2020-10-23T07:09:19.85 10.0 positive automatic S 288 11.8602 3.1201 0
IU.HNR.BHZ.00 2020-10-23T07:09:15.67 10.0 negative automatic P 307 25.0953 -1.25861 0.91954
AU.NIUE.BHZ. 2020-10-23T07:09:03.95 10.0 negative automatic S 56 11.2522 -0.740144 0
NZ.ODZ.HHZ.10 2020-10-23T07:08:38.11 10.0 negative automatic P 199 20.8835 -1.04118 0.985222
AU.LHI.BHZ.00 2020-10-23T07:08:27.63 10.0 negative automatic P 247 19.4113 1.91985 0.952381
IU.RAR.BHZ.00 2020-10-23T07:08:22.65 10.0 negative automatic P 81 18.9082 1.55459 0.987654
NZ.KHZ.HHZ.10 2020-10-23T07:08:05.34 10.0 positive automatic P 196 17.6567 -3.76596 0.966184
IU.FUNA.BHZ.00 2020-10-23T07:08:01.80 10.0 negative automatic P 357 17.1164 -1.68206 0.952381
IU.SNZO.BHZ.00 2020-10-23T07:07:53.27 10.0 positive automatic P 195 16.3279 -1.96559 0.963855
G.SANVU.BHZ.00 2020-10-23T07:07:47.65 10.0 negative automatic P 308 15.815 -2.16927 0.816327
ND.ONTNC.BHZ.00 2020-10-23T07:07:21.34 10.0 positive automatic P 282 12.9502 2.06238 0.869565
NZ.URZ.HHZ.10 2020-10-23T07:07:16.03 10.0 positive automatic P 191 12.9025 -2.74071 0.980392
ND.MARNC.BHZ.00 2020-10-23T07:07:09.25 10.0 positive automatic P 288 11.8602 1.72893 0.869565
AU.NFK.BHZ.00 2020-10-23T07:07:06.36 10.0 negative automatic P 250 11.3801 3.99773 0.328947
AU.NIUE.BHZ. 2020-10-23T07:07:01.67 10.0 positive automatic P 56 11.2522 0.708627 0.97561
NZ.OUZ.HHZ.10 2020-10-23T07:07:01.46 10.0 negative automatic P 209 11.1411 1.71059 0.970874
II.MSVF.BHZ.00 2020-10-23T07:06:28.37 10.0 positive automatic P 346 8.1133 1.19159 0.930233
IU.RAO.BHZ.00 2020-10-23T07:05:46.80 10.0 negative automatic P 155 4.0018 0.742199 0.769231
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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