Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mwp 5.8 on date 24-10-2022 and time 07:51:00 (UTC) in region Tonga Islands [Sea: Tonga]

A magnitude Mwp 5.8 earthquake occured in region: Tonga Islands [Sea: Tonga], on

  • 24-10-2022 07:51:00 (UTC)
  • 24-10-2022 09:51:00 (UTC +02:00) Italian time
  • 24-10-2022 20:51:00 (UTC +13:00) local time in the region of the earthquake (Pacific/Apia)

and geographic coordinates (lat, lon) -15.2790, -173.3720 at 6 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 5.4
Mwp 5.8
Mwpd 5.9 		2022-10-24
07:51:00		 -15.2789 -173.372 5 2022-10-24
08:12:39		 Sala Sismica INGV-Roma 111132371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-10-24 07:51:00
Latitude -15.2789
Longitude -173.3720
Depth (km) 5 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 111132371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 14629
Semi-minor axis of confidence ellipse (meter) 9467
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 343
Circular confidence region, given by single value of horizontal uncertainty (meter) 14039.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 55.7505
Number of associated phases, regardless of their use for origin computation 70
Number of defining phases 70
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.34205
Epicentral distance of station closest to the epicenter (degree) 9.91989
Epicentral distance of station farthest from the epicenter (degree) 98.26167
Number of stations at which the event was observed 65
Number of stations from which data was used for origin computation 65
Magnitudes information

Mwpd:5.9

Field Value
Value 5.9
Uncertainty 0.2
Num. used stations 9
Type of magnitude Mwpd
Reference to an origin 111132371
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-10-24 08:12:39

Mwp:5.8

Field Value
Value 5.8
Uncertainty 0.0
Num. used stations 8
Type of magnitude Mwp
Reference to an origin 111132371
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-10-24 08:12:39

mb:5.4

Field Value
Value 5.4
Uncertainty 0.2
Num. used stations 47
Type of magnitude mb
Reference to an origin 111132371
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-10-24 08:12:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
US.GOGA.BHZ.00 2022-10-24T08:04:39.60 10.0 positive automatic P 58 10907.0487 2.70545 0.0416084
IU.WVT.BHZ.00 2022-10-24T08:04:23.57 10.0 negative automatic P 54 10593.396 -0.540372 0.0541428
US.JFWS.BHZ.00 2022-10-24T08:04:22.80 10.0 negative automatic P 47 10593.618 -1.34743 0.0584886
IU.ULN.BHZ.00 2022-10-24T08:04:20.12 10.0 negative automatic P 319 10488.1125 0.102347 0.0659083
IU.LCO.BHZ.00 2022-10-24T08:04:17.22 10.0 negative automatic P 121 10353.8469 2.64795 0.069699
IU.CCM.BHZ.00 2022-10-24T08:04:13.55 10.0 positive automatic P 51 10361.1285 -0.975187 0.0701187
GE.SNAA.BHZ. 2022-10-24T08:04:13.31 10.0 positive automatic P 177 10301.8323 1.14618 0.0741054
II.JTS.BHZ.00 2022-10-24T08:04:07.32 10.0 positive automatic P 80 10122.423 2.71732 0.0822112
US.ECSD.BHZ.00 2022-10-24T08:04:03.88 10.0 positive automatic P 45 10132.6794 -1.17647 0.0835332
US.MIAR.BHZ.00 2022-10-24T08:04:00.88 10.0 positive automatic P 54 10044.6231 -0.444991 0.0828822
US.KSU1.BHZ.00 2022-10-24T08:03:57.05 10.0 negative automatic P 49 9956.3004 -0.574574 0.09507
US.DGMT.BHZ.00 2022-10-24T08:03:50.53 10.0 positive automatic P 38 9798.1143 -0.457731 0.101483
IU.HKT.BHZ.00 2022-10-24T08:03:46.27 10.0 negative automatic P 58 9679.0446 0.60114 0.107841
MY.IPM.BHZ. 2022-10-24T08:03:45.82 10.0 positive automatic P 275 9651.3834 1.25243 0.116147
IU.RSSD.BHZ.00 2022-10-24T08:03:41.27 10.0 negative automatic P 42 9601.8885 -1.43514 0.115439
US.WMOK.BHZ.00 2022-10-24T08:03:41.48 10.0 negative automatic P 53 9604.7301 -1.07852 0.107813
US.EGMT.BHZ.00 2022-10-24T08:03:33.15 10.0 positive automatic P 37 9411.357 -0.839121 0.130071
US.AMTX.BHZ.00 2022-10-24T08:03:31.50 10.0 negative automatic P 51 9366.0912 -0.421022 0.131802
US.ISCO.BHZ.00 2022-10-24T08:03:27.95 10.0 negative automatic P 46 9276.7473 -0.158618 0.146717
US.EGAK.BHZ.00 2022-10-24T08:03:26.93 10.0 negative automatic P 13 9292.4094 -1.4878 0.129684
US.SDCO.BHZ.00 2022-10-24T08:03:23.40 10.0 positive automatic P 48 9185.9271 -0.44803 0.138659
US.JCT.BHZ.00 2022-10-24T08:03:23.53 10.0 negative automatic P 56 9343.0365 -7.26457 0
IU.COLA.BHZ.00 2022-10-24T08:03:19.85 10.0 positive automatic P 11 9153.4596 -2.07382 0.154594
US.MNTX.BHZ.00 2022-10-24T08:03:10.38 10.0 positive automatic P 53 8908.7601 0.117183 0.172579
IU.FUNA.BHZ.00 2022-10-24T08:03:06.55 10.0 positive automatic ScP 312 1101.1089 1.06082 0
US.WRAK.BHZ.00 2022-10-24T08:03:05.35 10.0 positive automatic P 22 8819.2053 -0.481064 0.173924
MX.ZAIG.BHZ. 2022-10-24T08:03:04.78 10.0 negative automatic P 63 8770.8204 0.930056 0.184286
MX.HPIG.BHZ. 2022-10-24T08:02:58.07 10.0 positive automatic P 57 8664.5268 -0.383403 0.193571
US.ELK.BHZ.00 2022-10-24T08:02:55.50 10.0 negative automatic P 41 8618.9502 -0.740591 0.193026
US.NLWA.BHZ.00 2022-10-24T08:02:50.00 10.0 positive automatic P 32 8512.6344 -0.59594 0.200087
US.WVOR.BHZ.00 2022-10-24T08:02:49.08 10.0 negative automatic P 38 8492.3547 -0.605517 0.20423
IU.COR.BHZ.00 2022-10-24T08:02:41.57 10.0 positive automatic P 34 8343.0819 -0.2161 0.208167
II.KDAK.BHZ.00 2022-10-24T08:02:39.45 10.0 negative automatic P 11 8330.9385 -1.71762 0.211595
IU.YSS.BHZ.00 2022-10-24T08:02:32.75 10.0 positive automatic P 330 8171.0319 -0.0178111 0.239664
II.PFO.BHZ.00 2022-10-24T08:02:28.57 10.0 negative automatic P 47 8100.6579 -0.652495 0.238132
BK.CMB.BHZ.00 2022-10-24T08:02:27.52 10.0 positive automatic P 41 8084.796 -0.752953 0.224201
JP.JKA.BHZ. 2022-10-24T08:02:21.40 10.0 negative automatic PcP 326 7721.3265 -10.0388 0
BK.SAO.BHZ.00 2022-10-24T08:02:19.25 10.0 negative automatic P 42 7925.7219 -0.378626 0.24678
IU.CASY.BHZ.00 2022-10-24T08:02:14.07 10.0 positive automatic P 204 7820.3163 0.266576 0.262892
AT.AKUT.BHZ. 2022-10-24T08:02:07.22 10.0 positive automatic P 5 7738.3095 -2.04896 0.289644
JP.JGF.BHZ. 2022-10-24T08:02:04.30 10.0 positive automatic P 319 7659.0777 -0.645716 0.267228
AT.SMY.BHZ. 2022-10-24T08:02:02.52 10.0 negative automatic P 352 7643.8152 -1.48334 0
AK.ATKA.BHZ. 2022-10-24T08:01:53.13 10.0 negative automatic P 359 7490.4243 -2.19978 0.294474
IU.SBA.BHZ.00 2022-10-24T08:01:31.22 10.0 positive automatic pP 185 7031.3172 2.67512 0.352325
GT.VNDA.BHZ.00 2022-10-24T08:01:31.10 10.0 positive automatic P 186 7045.3143 1.71107 0.0886911
IU.MBWA.BHZ.00 2022-10-24T08:01:29.80 10.0 positive automatic P 254 7034.5584 1.0331 0.351945
GE.SOEI.BHZ. 2022-10-24T08:01:14.22 10.0 positive automatic pP 267 6764.3733 1.64165 0.388778
AU.FORT.BHZ.00 2022-10-24T08:00:33.65 10.0 negative automatic P 243 6155.4162 -0.377377 0.467849
AU.MTN.BHZ.00 2022-10-24T08:00:21.48 10.0 positive automatic P 265 5965.6506 -0.131015 0.51808
II.WRAB.BHZ.00 2022-10-24T07:59:52.85 10.0 negative automatic P 257 5532.9726 0.29776 0.576335
AU.TOO.BHZ.00 2022-10-24T07:58:54.65 10.0 positive automatic P 230 4724.5374 -0.607284 0.682429
AU.QLP.BHZ. 2022-10-24T07:58:41.00 10.0 negative automatic P 247 4547.6145 -0.145158 0.737492
G.CAN.BHZ.00 2022-10-24T07:58:26.50 10.0 negative automatic P 232 4343.4522 -0.4522 0.746388
IU.CTAO.BHZ.00 2022-10-24T07:58:23.32 10.0 positive automatic P 257 4292.6919 0.260837 0.773102
AU.ARMA.BHZ. 2022-10-24T07:57:55.97 10.0 positive automatic P 239 3932.175 0.392472 0.848215
AU.EIDS.BHZ. 2022-10-24T07:57:49.95 10.0 positive automatic P 247 3852.0441 0.741298 0.852926
NZ.ODZ.HHZ.10 2022-10-24T07:57:31.99 10.0 positive automatic P 201 3627.1026 0.418112 0.862335
NZ.KHZ.HHZ.10 2022-10-24T07:57:01.65 10.0 positive automatic P 200 3260.6583 -0.775284 0.966184
IU.SNZO.BHZ.00 2022-10-24T07:56:49.12 10.0 positive automatic P 199 3108.0999 -1.08781 0.97561
NZ.URZ.HHZ.10 2022-10-24T07:56:16.00 10.0 positive automatic P 198 2715.5262 -2.24367 0.328407
IU.XMAS.BHZ.00 2022-10-24T07:56:08.07 10.0 negative automatic P 44 2599.1982 -0.3882 0.91954
G.PPTF.BHZ.00 2022-10-24T07:56:06.20 10.0 negative automatic P 99 2545.6851 2.70899 0.909091
NZ.OUZ.HHZ.10 2022-10-24T07:56:04.55 10.0 positive automatic P 208 2565.1878 -0.684841 0.328407
AU.NFK.BHZ.00 2022-10-24T07:55:55.72 10.0 negative automatic P 228 2448.2049 1.64989 0.934579
IU.RAR.BHZ.00 2022-10-24T07:54:18.22 10.0 positive automatic P 117 1576.4442 -1.98595 0.97561
IU.FUNA.BHZ.00 2022-10-24T07:53:23.25 10.0 negative automatic P 312 1101.1089 1.58954 0.963855
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