Earthquake with magnitude of Mwp 6.5 on date 21-05-2023 and time 14:56:49 (UTC) in region Prince Edward Islands, South Africa, region [Sea]

A magnitude Mwp 6.5 earthquake occured in region: Prince Edward Islands, South Africa, region [Sea], on

  • 21-05-2023 14:56:49 (UTC)
  • 21-05-2023 16:56:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) -43.2700, 39.1810 at 23 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 5.5
Mwp 6.5

Mwpd 6.6
2023-05-21
14:56:49
-43.2703 39.1812 23 2023-05-21
15:27:54
Sala Sismica INGV-Roma 117558571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-21 14:56:49
Latitude -43.2703
Longitude 39.1812
Depth (km) 23 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 117558571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 28433799
Semi-minor axis of confidence ellipse (meter) 12806418
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 214
Circular confidence region, given by single value of horizontal uncertainty (meter) 23923600.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54.5053
Number of associated phases, regardless of their use for origin computation 68
Number of defining phases 68
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.93061
Epicentral distance of station closest to the epicenter (degree) 9.51518
Epicentral distance of station farthest from the epicenter (degree) 95.52929
Number of stations at which the event was observed 68
Number of stations from which data was used for origin computation 68
Magnitudes information

Mwp:6.5

Field Value
Value 6.5
Uncertainty 0.1
Num. used stations 43
Type of magnitude Mwp
Reference to an origin 117558571
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-05-21 15:27:54

Mwpd:6.6

Field Value
Value 6.6
Uncertainty 0.1
Num. used stations 43
Type of magnitude Mwpd
Reference to an origin 117558571
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-05-21 15:27:54

mb:5.5

Field Value
Value 5.5
Uncertainty 0.1
Num. used stations 65
Type of magnitude mb
Reference to an origin 117558571
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-05-21 15:27:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
II.BFO.BHZ.00 2023-05-21T15:10:15.27 10.0 positive automatic P 340 10603.7523 3.94418 0.0896848
RD.RJF.BHZ. 2023-05-21T15:10:11.28 10.0 positive automatic P 334 10510.6899 4.29759 0.0938396
RD.EPF.BHZ. 2023-05-21T15:10:03.62 10.0 positive automatic P 333 10327.884 4.14502 0.0928527
RD.MTLF.BHZ. 2023-05-21T15:10:01.60 10.0 positive automatic P 334 10290.6324 3.74544 0.0978968
IV.PTCC.BHZ. 2023-05-21T15:10:00.85 10.0 positive automatic P 343 10272.828 3.38139 0.0914027
OE.ARSA.BHZ. 2023-05-21T15:09:59.02 10.0 positive automatic P 344 10311.6669 0.249668 0.0948387
MN.BNI.BHZ. 2023-05-21T15:09:58.92 10.0 positive automatic P 338 10315.9293 -1.21584 0.096964
GE.PSZ.BHZ. 2023-05-21T15:09:57.35 10.0 positive automatic P 347 10295.7828 -1.78486 0.0909955
IU.PAB.BHZ.00 2023-05-21T15:09:55.72 10.0 positive automatic P 328 10176.1359 2.23195 0.0470861
GT.LPAZ.BHZ.00 2023-05-21T15:09:53.90 10.0 positive automatic P 246 10089.6225 2.73502 0.102556
HU.KOVH.BHZ. 2023-05-21T15:09:50.85 10.0 positive automatic P 346 10133.3343 -0.443036 0.100491
CX.MNMCX.BHZ. 2023-05-21T15:09:47.00 10.0 positive automatic P 243 9969.1209 1.30393 0.0346097
MN.BZS.BHZ. 2023-05-21T15:09:45.72 10.0 positive automatic P 348 10016.862 -0.686155 0.0526452
IV.LNSS.BHZ. 2023-05-21T15:09:42.75 10.0 positive automatic P 341 9880.5318 1.9281 0.110856
MN.AQU.BHZ. 2023-05-21T15:09:41.67 10.0 positive automatic P 341 9844.8342 1.55186 0.0503092
RM.SLV.BHZ. 2023-05-21T15:09:35.22 10.0 positive automatic P 57 9733.0461 -0.31708 0.0974654
GE.SANI.BHZ. 2023-05-21T15:09:28.37 10.0 positive automatic P 89 9575.6037 2.53145 0.0643306
II.SIMI.BHZ.00 2023-05-21T15:09:25.55 10.0 positive automatic P 23 9574.6824 -1.84776 0.116463
AC.KBN.HHZ. 2023-05-21T15:09:23.21 10.0 positive automatic P 346 9492.1428 -0.639926 0.11973
C.GO03.BHZ. 2023-05-21T15:09:21.63 10.0 positive automatic P 237 9333.4905 2.92587 0.122738
HL.RDO.HHZ. 2023-05-21T15:09:21.12 10.0 positive automatic P 350 9468.5109 -1.97361 0.0650825
IV.SERS.HHZ. 2023-05-21T15:09:20.88 10.0 positive automatic P 343 9410.9685 0.62371 0.119859
HT.LIT.HHZ. 2023-05-21T15:09:18.12 10.0 positive automatic P 347 9403.8423 -1.14965 0.152995
IU.LCO.BHZ.00 2023-05-21T15:09:16.92 10.0 positive automatic P 236 9251.0064 3.45331 0.126461
C1.CO02.BHZ. 2023-05-21T15:09:06.90 10.0 positive automatic P 234 9094.6518 1.31702 0.127732
KO.GURO.HHZ. 2023-05-21T15:09:04.89 10.0 positive automatic P 2 9086.2824 -0.331708 0.130452
G.PEL.BHZ.00 2023-05-21T15:08:59.05 10.0 positive automatic P 233 8918.1396 1.5901 0.13284
II.WRAB.BHZ.00 2023-05-21T15:08:56.12 10.0 positive automatic P 108 8890.878 2.72615 0.130547
C1.BO02.BHZ. 2023-05-21T15:08:53.00 10.0 positive automatic P 232 8793.4866 3.00764 0.133456
GE.MMRI.BHZ. 2023-05-21T15:08:51.12 10.0 positive automatic P 92 8774.1948 1.54074 0.088675
GE.CSS.BHZ. 2023-05-21T15:08:44.45 10.0 positive automatic P 355 8703.4878 -2.36719 0.104958
GT.CPUP.BHZ.00 2023-05-21T15:08:38.33 10.0 positive automatic P 246 8513.5446 3.34692 0.144054
C.GO06.BHZ. 2023-05-21T15:08:35.38 10.0 positive automatic P 228 8455.8135 1.2823 0.149547
AU.TOO.BHZ.00 2023-05-21T15:08:32.05 10.0 positive automatic P 128 8343.9699 3.83636 0.148227
GT.PLCA.BHZ.00 2023-05-21T15:08:27.58 10.0 positive automatic P 228 8310.3369 0.627041 0.139684
C1.LL02.BHZ. 2023-05-21T15:08:24.00 10.0 positive automatic P 225 8193.8091 3.68773 0.15737
MY.IPM.BHZ. 2023-05-21T15:08:17.17 10.0 positive automatic P 67 8125.0668 0.464825 0.198096
G.TAM.BHZ.00 2023-05-21T15:08:15.30 10.0 positive automatic P 328 8096.7951 -0.743068 0.157424
GE.EIL.BHZ. 2023-05-21T15:08:13.55 10.0 positive automatic P 356 8107.4733 -2.82783 0.149181
AU.WRKA.BHZ.00 2023-05-21T15:08:13.40 10.0 positive automatic P 108 8049.9975 0.695148 0.157423
G.COYC.BHZ.00 2023-05-21T15:08:12.90 10.0 positive automatic P 223 8020.7157 1.43113 0.160419
II.UOSS.BHZ.00 2023-05-21T15:07:54.70 10.0 positive automatic P 16 7768.5126 -2.49852 0.174908
AU.FORT.BHZ.00 2023-05-21T15:07:50.13 10.0 positive automatic P 113 7626.9987 0.726049 0.183826
GE.GSI.BHZ. 2023-05-21T15:07:49.97 10.0 positive automatic P 66 7607.3073 1.53438 0.17428
GE.MALK.BHZ. 2023-05-21T15:07:22.27 10.0 positive automatic P 47 7088.2602 3.40766 0.0970644
GT.DBIC.BHZ.00 2023-05-21T15:07:17.93 10.0 positive automatic P 310 7090.1916 -0.0360346 0.239496
GE.HALK.BHZ. 2023-05-21T15:07:07.30 10.0 positive automatic P 48 6880.9566 1.23106 0.199431
AU.MORW.BHZ. 2023-05-21T15:07:04.80 10.0 positive automatic P 104 6822.2376 3.24342 0.227033
G.ATD.BHZ.00 2023-05-21T15:06:16.55 10.0 positive automatic P 4 6093.9999 -1.8557 0.345289
IU.SBA.BHZ.00 2023-05-21T15:06:15.27 10.0 positive automatic P 168 6081.0351 -1.96714 0.292251
GT.VNDA.BHZ.00 2023-05-21T15:06:10.53 10.0 positive automatic P 167 6021.2505 -2.32202 0.037683
II.HOPE.BHZ.00 2023-05-21T15:05:30.62 10.0 positive automatic P 229 5390.8038 0.0923801 0.339428
IU.CASY.BHZ.00 2023-05-21T15:04:50.42 10.0 positive automatic P 147 4866.906 -2.46032 0.212969
II.MBAR.BHZ.00 2023-05-21T15:04:47.92 10.0 positive automatic P 348 4809.5634 -0.100636 0.44769
IU.KMBO.BHZ.00 2023-05-21T15:04:39.17 10.0 positive automatic P 357 4681.5915 0.751731 0.45011
GE.SNAA.BHZ. 2023-05-21T15:03:35.86 10.0 positive automatic P 202 3866.7516 -0.146107 0.927011
IU.TSUM.BHZ.00 2023-05-21T15:02:55.37 10.0 positive automatic P 316 3345.5955 -0.595788 0.985602
IU.LSZ.BHZ.00 2023-05-21T15:02:49.57 10.0 positive automatic P 338 3277.386 -0.903847 1.20789
GE.WIN.BHZ. 2023-05-21T15:02:33.55 10.0 positive automatic P 311 3065.1318 -0.00246491 0.930233
AU.MAW.BHZ. 2023-05-21T15:02:28.88 10.0 positive automatic P 161 3041.6997 -2.47448 1.16098
II.ABPO.BHZ.00 2023-05-21T15:02:12.52 10.0 positive automatic P 18 2795.0022 0.674705 0.898876
G.PAF.BHZ.00 2023-05-21T15:01:43.35 10.0 positive automatic P 117 2453.4774 2.10953 0.43956
GE.VOI.BHZ. 2023-05-21T15:01:42.35 10.0 positive automatic P 19 2458.0062 0.275766 0.952381
GT.LBTB.BHZ.00 2023-05-21T15:01:33.23 10.0 positive automatic P 324 2372.5917 -0.266099 1.1177
G.FOMA.BHZ.00 2023-05-21T15:01:13.00 10.0 positive automatic P 22 2150.8248 1.59265 0.909091
AF.ALKP.BHZ. 2023-05-21T15:01:07.74 10.0 positive automatic P 309 2105.2593 0.292941 1.41513
II.SUR.BHZ.00 2023-05-21T15:00:57.37 10.0 positive automatic P 301 2006.1474 -0.478096 1.46168
G.CRZF.BHZ.00 2023-05-21T14:58:57.60 10.0 positive automatic P 114 1056.1872 -5.65785 0.734167
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