Earthquake with magnitude of Mwp 6.1 on date 27-05-2023 and time 00:11:04 (UTC) in region Tonga Islands [Sea: Tonga]

A magnitude Mwp 6.1 earthquake occured in region: Tonga Islands [Sea: Tonga], on

  • 27-05-2023 00:11:04 (UTC)
  • 27-05-2023 02:11:04 (UTC +02:00) Italian time
  • 27-05-2023 13:11:04 (UTC +13:00) local time in the region of the earthquake (Pacific/Tongatapu)

and geographic coordinates (lat, lon) -18.4290, -175.2610 at 240 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
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
mb 5.3
Mwp 6.1

Mwpd 6.1
2023-05-27
00:11:04
-18.4289 -175.261 240 2023-05-27
00:38:39
Sala Sismica INGV-Roma 117761261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-27 00:11:04
Latitude -18.4289
Longitude -175.2610
Depth (km) 240 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 117761261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 32110851
Semi-minor axis of confidence ellipse (meter) 31814891
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 175
Circular confidence region, given by single value of horizontal uncertainty (meter) 29082800.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 21.2794
Number of associated phases, regardless of their use for origin computation 143
Number of defining phases 143
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.50707
Epicentral distance of station closest to the epicenter (degree) 5.09177
Epicentral distance of station farthest from the epicenter (degree) 96.88313
Number of stations at which the event was observed 143
Number of stations from which data was used for origin computation 143
Magnitudes information

Mwpd:6.1

Field Value
Value 6.1
Uncertainty 0.1
Num. used stations 43
Type of magnitude Mwpd
Reference to an origin 117761261
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-05-27 00:38:39

Mwp:6.1

Field Value
Value 6.1
Uncertainty 0.1
Num. used stations 35
Type of magnitude Mwp
Reference to an origin 117761261
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-05-27 00:38:39

mb:5.3

Field Value
Value 5.3
Uncertainty 0.1
Num. used stations 120
Type of magnitude mb
Reference to an origin 117761261
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-05-27 00:38:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IU.CCM.BHZ.00 2023-05-27T00:24:07.37 10.0 positive automatic P 52 10735.3317 0.162555 0.090569
US.AGMN.BHZ.00 2023-05-27T00:24:06.93 10.0 positive automatic P 41 10754.0241 0.263393 0.086198
IU.ULN.BHZ.00 2023-05-27T00:24:01.27 10.0 positive automatic P 319 10618.1823 1.07703 0.0855348
II.FFC.BHZ.00 2023-05-27T00:24:01.77 10.0 positive automatic P 34 10629.693 0.00828706 0.0923784
US.ECSD.BHZ.00 2023-05-27T00:23:57.25 10.0 positive automatic P 45 10521.8343 0.0579548 0.096554
IU.LCO.BHZ.00 2023-05-27T00:23:53.82 10.0 positive automatic P 122 10341.2373 2.29603 0.0942768
US.MIAR.BHZ.00 2023-05-27T00:23:53.48 10.0 positive automatic P 55 10411.2006 -0.547121 0.0243608
US.KSU1.BHZ.00 2023-05-27T00:23:51.30 10.0 positive automatic P 50 10336.3755 0.876705 0.0988591
C1.CO02.BHZ. 2023-05-27T00:23:48.13 10.0 positive automatic P 124 10219.2816 3.31156 0.101138
US.NATX.BHZ.00 2023-05-27T00:23:47.38 10.0 positive automatic P 57 10209.9687 3.12475 0.0925118
IU.CHTO.BHZ.00 2023-05-27T00:23:46.95 10.0 positive automatic P 289 10219.1484 1.52987 0.0976529
G.PEL.BHZ.00 2023-05-27T00:23:45.15 10.0 positive automatic P 126 10162.6383 0.3231 0.091389
US.DGMT.BHZ.00 2023-05-27T00:23:44.95 10.0 positive automatic P 39 10196.6043 1.17987 0.046887
IU.HKT.BHZ.00 2023-05-27T00:23:39.17 10.0 positive automatic P 58 10034.1336 1.17965 0.0927583
GE.LHMI.BHZ. 2023-05-27T00:23:36.02 10.0 positive automatic P 276 9941.2488 3.02352 0.0690576
US.LAO.BHZ.00 2023-05-27T00:23:35.63 10.0 positive automatic P 40 9971.8071 1.18756 0.0490249
GE.SNAA.BHZ. 2023-05-27T00:23:35.31 10.0 positive automatic P 178 9961.9281 0.758598 0.106431
IU.RSSD.BHZ.00 2023-05-27T00:23:35.85 10.0 positive automatic P 43 9995.1948 -0.318465 0.103265
US.WMOK.BHZ.00 2023-05-27T00:23:35.13 10.0 positive automatic P 53 9976.0695 -0.295452 0.10247
C.GO06.BHZ. 2023-05-27T00:23:31.23 10.0 positive automatic P 132 9816.7845 3.25589 0.108313
RM.SLV.BHZ. 2023-05-27T00:23:30.72 10.0 positive automatic P 293 9825.1761 1.38112 0.156919
US.AMTX.BHZ.00 2023-05-27T00:23:26.18 10.0 positive automatic P 52 9740.2722 1.48853 0.111331
US.JCT.BHZ.00 2023-05-27T00:23:24.23 10.0 positive automatic P 57 9703.7199 0.645873 0.079851
US.RLMT.BHZ.00 2023-05-27T00:23:23.93 10.0 positive automatic P 40 9682.1082 1.53339 0.110053
C1.LL01.BHZ. 2023-05-27T00:23:22.15 10.0 positive automatic P 134 9625.3983 2.54928 0.104091
IU.BILL.BHZ.00 2023-05-27T00:23:22.50 10.0 positive automatic P 353 9714.3981 0.0344801 0.165054
C1.LL02.BHZ. 2023-05-27T00:23:22.93 10.0 positive automatic P 135 9633.7677 2.90951 0.11116
US.EGAK.BHZ.00 2023-05-27T00:23:21.25 10.0 positive automatic P 14 9679.2888 -0.711585 0.0985649
US.SDCO.BHZ.00 2023-05-27T00:23:19.18 10.0 positive automatic P 48 9569.4654 1.57943 0.0389104
PS.VIVO.BHZ. 2023-05-27T00:23:18.66 10.0 positive automatic P 291 9545.4561 2.56656 0.0579612
G.COYC.BHZ.00 2023-05-27T00:23:18.20 10.0 positive automatic P 137 9516.3519 0.721067 0.111331
US.BOZ.BHZ.00 2023-05-27T00:23:16.83 10.0 positive automatic P 39 9550.551 0.233185 0.0267228
US.BW06.BHZ.00 2023-05-27T00:23:15.95 10.0 positive automatic P 42 9531.7698 0.0777732 0.109724
IU.COLA.BHZ.00 2023-05-27T00:23:14.22 10.0 positive automatic P 11 9534.8667 -0.426586 0.230698
US.MSO.BHZ.00 2023-05-27T00:23:12.50 10.0 positive automatic P 37 9474.2163 -0.6619 0.108621
CN.ATLI.BHZ. 2023-05-27T00:23:11.48 10.0 positive automatic P 20 9437.0202 0.0527361 0.0967242
AU.MAW.BHZ. 2023-05-27T00:23:09.08 10.0 positive automatic P 199 9343.314 1.20755 0.0398566
IU.ANMO.BHZ.00 2023-05-27T00:23:08.92 10.0 positive automatic P 50 9351.972 0.0319802 0.12077
US.NEW.BHZ.00 2023-05-27T00:23:07.75 10.0 positive automatic P 35 9368.6664 -0.600073 0.111083
US.HWUT.BHZ.00 2023-05-27T00:23:06.48 10.0 positive automatic P 42 9324.1998 -0.0475473 0.122954
US.MVCO.BHZ.00 2023-05-27T00:23:06.50 10.0 positive automatic P 47 9308.127 0.647992 0.123379
US.MNTX.BHZ.00 2023-05-27T00:23:05.95 10.0 positive automatic P 54 9278.5677 1.74924 0.118457
US.HLID.BHZ.00 2023-05-27T00:23:03.25 10.0 positive automatic P 40 9243.5916 0.411997 0.0589997
AT.TTA.BHZ. 2023-05-27T00:22:59.28 10.0 positive automatic P 9 9185.4498 -1.16379 0.165325
US.WRAK.BHZ.00 2023-05-27T00:22:58.68 10.0 positive automatic P 22 9218.5389 -2.72026 0.125789
IU.PMSA.BHZ.00 2023-05-27T00:22:58.97 10.0 positive automatic P 156 9098.3148 2.64187 0.0304496
IU.MA2.BHZ.00 2023-05-27T00:22:58.42 10.0 positive automatic P 343 9187.1148 -0.8713 0.190815
US.DUG.BHZ.00 2023-05-27T00:22:58.80 10.0 positive automatic P 43 9152.9268 0.199037 0.121733
MY.KOM.BHZ. 2023-05-27T00:22:57.57 10.0 positive automatic P 275 9094.896 1.7725 0.1701
US.BMO.BHZ.00 2023-05-27T00:22:57.70 10.0 positive automatic P 37 9135.4998 -0.0357361 0.0577781
US.HAWA.BHZ.00 2023-05-27T00:22:55.93 10.0 positive automatic P 35 9099.0696 -0.838408 0.121778
MX.HPIG.BHZ. 2023-05-27T00:22:54.60 10.0 positive automatic P 58 9021.414 1.90704 0.129783
RM.DLV.BHZ. 2023-05-27T00:22:53.67 10.0 positive automatic P 286 8999.6691 1.9559 0.133592
US.WUAZ.BHZ.00 2023-05-27T00:22:52.58 10.0 positive automatic P 48 8991.9657 0.23603 0.130635
US.ELK.BHZ.00 2023-05-27T00:22:52.35 10.0 positive automatic P 42 9013.9437 0.136617 0.129998
GE.MNAI.BHZ. 2023-05-27T00:22:51.17 10.0 positive automatic P 268 8972.5629 1.20451 0.1344
US.NLWA.BHZ.00 2023-05-27T00:22:47.45 10.0 positive automatic P 32 8915.4534 -1.18382 0.126846
US.WVOR.BHZ.00 2023-05-27T00:22:46.03 10.0 positive automatic P 39 8890.9224 -1.05468 0.122002
IU.TUC.BHZ.00 2023-05-27T00:22:46.32 10.0 positive automatic P 51 8861.0412 0.34953 0.125556
NN.PRN.HHZ. 2023-05-27T00:22:43.99 10.0 positive automatic P 45 8823.2235 -0.373948 0.135037
IU.COR.BHZ.00 2023-05-27T00:22:39.60 10.0 positive automatic P 35 8744.8242 -0.908609 0.0637494
US.TPNV.BHZ.00 2023-05-27T00:22:37.85 10.0 positive automatic P 44 8706.8178 -0.671274 0.141011
MX.HSIG.BHZ. 2023-05-27T00:22:36.94 10.0 positive automatic P 54 8668.4007 1.03914 0.137301
II.KDAK.BHZ.00 2023-05-27T00:22:36.27 10.0 positive automatic P 12 8713.9995 -1.53285 0.127007
IU.INCN.BHZ.00 2023-05-27T00:22:36.52 10.0 positive automatic P 316 8674.2837 0.967536 0.184949
PS.TJN.BHZ. 2023-05-27T00:22:29.91 10.0 positive automatic P 316 8550.7296 0.624622 0.131904
II.PFO.BHZ.00 2023-05-27T00:22:27.72 10.0 positive automatic P 47 8485.9389 0.309358 0.144955
BK.CMB.BHZ.00 2023-05-27T00:22:25.27 10.0 positive automatic P 42 8479.8894 -1.63925 0.109193
IU.YSS.BHZ.00 2023-05-27T00:22:20.70 10.0 positive automatic P 332 8380.5222 0.263196 0.220214
BK.MCCM.BHZ.00 2023-05-27T00:22:18.15 10.0 positive automatic P 40 8315.6649 -0.180516 0.1222
IU.PET.BHZ.00 2023-05-27T00:22:15.77 10.0 positive automatic P 344 8317.1523 -0.691502 0.14743
JP.JTU.BHZ. 2023-05-27T00:22:15.35 10.0 positive automatic P 315 8281.9653 -0.270333 0.181913
JP.YOJ.BHZ. 2023-05-27T00:22:12.00 10.0 positive automatic P 303 8197.4055 1.20213 0.143521
JP.JKA.BHZ. 2023-05-27T00:22:09.50 10.0 positive automatic P 330 8152.2174 0.602925 0.158938
GE.SMRI.BHZ. 2023-05-27T00:22:07.52 10.0 positive automatic P 268 8094.4197 1.00887 0.157467
PS.ISG.BHZ. 2023-05-27T00:22:05.41 10.0 positive automatic P 304 8085.351 0.0616522 0.115022
AT.AKUT.BHZ. 2023-05-27T00:22:04.38 10.0 positive automatic P 6 8104.8981 -1.90759 0.165529
JP.JSU.BHZ. 2023-05-27T00:22:01.45 10.0 positive automatic P 313 8005.6197 1.12312 0.219588
II.ERM.BHZ.00 2023-05-27T00:21:58.42 10.0 positive automatic P 329 7947.1893 0.111792 0.108066
JP.JTM.BHZ. 2023-05-27T00:21:58.25 10.0 positive automatic P 327 7964.9826 -0.105009 0.168828
AT.SMY.BHZ. 2023-05-27T00:21:57.38 10.0 positive automatic P 353 7964.583 -1.00049 0.0191712
JP.JOW.BHZ. 2023-05-27T00:21:56.95 10.0 positive automatic P 308 7884.8739 2.13245 0.1699
JP.JMN.BHZ. 2023-05-27T00:21:56.25 10.0 positive automatic P 317 7901.5683 0.94228 0.298715
IU.MAJO.BHZ.00 2023-05-27T00:21:50.02 10.0 positive automatic P 322 7809.849 0.781681 0.17318
JP.JGF.BHZ. 2023-05-27T00:21:49.15 10.0 positive automatic P 321 7795.308 0.364612 0.173827
G.INU.BHZ.00 2023-05-27T00:21:49.56 10.0 positive automatic P 320 7798.3272 0.827933 0.165797
IU.ADK.BHZ.00 2023-05-27T00:21:48.47 10.0 positive automatic P 359 7805.4201 -1.09533 0.171337
JP.JSG.BHZ. 2023-05-27T00:21:43.35 10.0 positive automatic P 320 7670.4774 0.380575 0.0438392
GE.BKB.BHZ. 2023-05-27T00:21:42.67 10.0 positive automatic P 276 7620.3498 1.17397 0.141479
GE.JAGI.BHZ. 2023-05-27T00:21:41.77 10.0 positive automatic P 268 7658.0454 0.665162 0.186507
IU.CASY.BHZ.00 2023-05-27T00:21:30.17 10.0 positive automatic P 205 7418.8182 1.43046 0.196601
JP.JHJ2.BHZ. 2023-05-27T00:21:29.80 10.0 positive automatic P 320 7442.3613 -0.088692 0.190708
II.KAPI.BHZ.00 2023-05-27T00:21:15.90 10.0 positive automatic P 273 7182.2439 1.06566 0.209768
GE.LUWI.BHZ. 2023-05-27T00:21:06.52 10.0 positive automatic P 278 7010.094 2.15872 0.211973
AU.MORW.BHZ. 2023-05-27T00:21:04.30 10.0 positive automatic P 246 6986.7285 1.22479 0.221674
IU.NWAO.BHZ.00 2023-05-27T00:20:55.07 10.0 positive automatic P 242 6830.3961 1.43711 0.223754
GE.MMRI.BHZ. 2023-05-27T00:20:53.27 10.0 positive automatic P 270 6801.6138 1.37134 0.233907
IU.MBWA.BHZ.00 2023-05-27T00:20:49.97 10.0 positive automatic P 256 6748.0674 1.25923 0.237634
GT.VNDA.BHZ.00 2023-05-27T00:20:47.38 10.0 positive automatic P 186 6677.5047 0.98778 0.0263229
IU.SBA.BHZ.00 2023-05-27T00:20:47.45 10.0 positive automatic P 184 6667.1817 1.35154 0.229446
GE.SANI.BHZ. 2023-05-27T00:20:43.02 10.0 positive automatic P 279 6636.5457 1.43473 0.234262
GE.TNTI.BHZ. 2023-05-27T00:20:41.67 10.0 positive automatic P 282 6606.5202 1.43052 0.236397
GE.SOEI.BHZ. 2023-05-27T00:20:40.07 10.0 positive automatic P 270 6553.5621 2.22668 0.325215
GE.BNDI.BHZ. 2023-05-27T00:20:11.57 10.0 positive automatic P 277 6135.303 0.75752 0.226669
GE.FAKI.BHZ. 2023-05-27T00:19:59.67 10.0 positive automatic P 280 5952.4416 1.28547 0.369814
AU.WRKA.BHZ.00 2023-05-27T00:19:51.40 10.0 positive automatic P 252 5825.8683 0.0929708 0.451034
AU.FORT.BHZ.00 2023-05-27T00:19:50.85 10.0 positive automatic P 245 5821.2063 -0.071674 0.335571
AU.MTN.BHZ.00 2023-05-27T00:19:45.78 10.0 positive automatic P 268 5743.9947 -0.0333965 0.254808
AU.KDU.BHZ.00 2023-05-27T00:19:36.95 10.0 positive automatic P 269 5607.0207 0.304743 0.475421
II.WRAB.BHZ.00 2023-05-27T00:19:12.92 10.0 positive automatic P 260 5264.0973 0.855353 0.381237
PS.JAY.BHZ. 2023-05-27T00:19:02.36 10.0 positive automatic P 285 5100.5277 0.423957 0.428773
AU.HTT.BHZ.00 2023-05-27T00:18:40.75 10.0 positive automatic P 240 4822.7058 -1.5345 0.438569
AU.MCQ.BHZ.00 2023-05-27T00:18:26.00 10.0 positive automatic P 203 4562.9436 2.65175 0.463311
IU.WAKE.BHZ.00 2023-05-27T00:18:26.87 10.0 positive automatic P 334 4626.5355 -1.11986 0.243886
AU.COEN.BHZ.00 2023-05-27T00:18:15.38 10.0 positive automatic P 270 4448.7579 0.374115 0.103083
II.TAU.BHZ.00 2023-05-27T00:18:13.42 10.0 positive automatic P 224 4429.2552 -0.504826 0.538538
AU.TOO.BHZ.00 2023-05-27T00:18:06.28 10.0 positive automatic P 233 4349.6793 -1.44076 0.57911
AU.QLP.BHZ. 2023-05-27T00:17:58.95 10.0 positive automatic P 250 4232.6076 0.253605 0.601396
GE.PMG.BHZ.00 2023-05-27T00:17:54.27 10.0 positive automatic P 279 4162.0449 0.510767 0.646038
PS.PATS.BHZ. 2023-05-27T00:17:44.16 10.0 positive automatic P 312 4029.1002 0.660407 0.635716
IU.CTAO.BHZ.00 2023-05-27T00:17:43.40 10.0 positive automatic P 261 4027.9569 -0.416765 0.843848
AU.MILA.BHZ.00 2023-05-27T00:17:42.80 10.0 positive automatic P 232 4025.748 -0.580184 0.622303
G.CAN.BHZ.00 2023-05-27T00:17:39.20 10.0 positive automatic P 235 3973.6224 -0.761957 0.638741
G.TAOE.BHZ.00 2023-05-27T00:17:36.92 10.0 positive automatic P 79 3925.3929 -0.390662 0.672889
AU.RIV.BHZ. 2023-05-27T00:17:21.85 10.0 positive automatic P 236 3733.4961 0.0162497 0.684671
AU.ARMA.BHZ. 2023-05-27T00:17:09.97 10.0 positive automatic P 242 3584.1456 0.0560504 1.04675
AU.EIDS.BHZ. 2023-05-27T00:17:05.92 10.0 positive automatic P 251 3540.7002 0.113714 1.16165
NZ.ODZ.HHZ.10 2023-05-27T00:16:41.44 10.0 positive automatic P 201 3228.8457 1.18742 0.961538
AU.LHI.BHZ.00 2023-05-27T00:16:20.78 10.0 positive automatic P 236 2952.5778 1.69407 0.108696
NZ.KHZ.HHZ.10 2023-05-27T00:16:10.85 10.0 positive automatic P 199 2863.9776 0.224274 0.97561
IU.HNR.BHZ.00 2023-05-27T00:16:09.80 10.0 positive automatic P 287 2846.8614 -0.574721 0.439567
G.PPTF.BHZ.00 2023-05-27T00:16:00.30 10.0 positive automatic P 92 2711.7522 -1.83639 0.869565
IU.SNZO.BHZ.00 2023-05-27T00:15:58.70 10.0 positive automatic P 198 2712.3072 0.330698 0.97561
NZ.URZ.HHZ.10 2023-05-27T00:15:23.76 10.0 positive automatic P 197 2321.4984 -1.69736 0.985222
NZ.OUZ.HHZ.10 2023-05-27T00:15:11.68 10.0 positive automatic P 208 2162.2245 -1.1461 0.995025
ND.KOUNC.BHZ.00 2023-05-27T00:15:10.70 10.0 positive automatic P 260 2151.5463 -0.863388 1.10269
AU.NFK.BHZ.00 2023-05-27T00:15:03.16 10.0 positive automatic P 232 2070.0612 0.198264 0.505265
ND.ONTNC.BHZ.00 2023-05-27T00:14:52.35 10.0 positive automatic P 254 1949.2488 0.865054 1.16199
ND.MARNC.BHZ.00 2023-05-27T00:14:34.60 10.0 positive automatic P 256 1774.8123 0.438709 1.52681
IU.RAR.BHZ.00 2023-05-27T00:14:18.50 10.0 positive automatic P 103 1645.7082 -3.60078 0.792079
IU.FUNA.BHZ.00 2023-05-27T00:13:37.87 10.0 positive automatic P 331 1251.0033 0.438683 0.909091
II.MSVF.BHZ.00 2023-05-27T00:12:37.17 10.0 positive automatic P 275 709.4676 0.619704 0.952381
AU.NIUE.BHZ.00 2023-05-27T00:12:13.60 10.0 positive automatic P 98 565.1898 -5.74016 0.94127
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