Earthquake with magnitude of Mwp 5.7 on date 28-04-2023 and time 01:07:53 (UTC) in region South Georgia & the South Sandwich Is. [Sea]

A magnitude Mwp 5.7 earthquake occured in region: South Georgia & the South Sandwich Is. [Sea], on

  • 28-04-2023 01:07:53 (UTC)
  • 28-04-2023 03:07:53 (UTC +02:00) Italian time
  • 27-04-2023 23:07:53 (UTC -02:00) local time in the region of the earthquake (Atlantic/South_Georgia)

and geographic coordinates (lat, lon) -59.9410, -27.9280 at 137 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 5.7

Mwpd 5.7
2023-04-28
01:07:53
-59.9414 -27.9284 137 2023-04-28
01:29:25
Sala Sismica INGV-Roma 116815151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-28 01:07:53
Latitude -59.9414
Longitude -27.9284
Depth (km) 137 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 116815151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 16430079
Semi-minor axis of confidence ellipse (meter) 7654759
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 357
Circular confidence region, given by single value of horizontal uncertainty (meter) 13486100.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 45.1736
Number of associated phases, regardless of their use for origin computation 58
Number of defining phases 58
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.27133
Epicentral distance of station closest to the epicenter (degree) 7.30998
Epicentral distance of station farthest from the epicenter (degree) 93.82087
Number of stations at which the event was observed 58
Number of stations from which data was used for origin computation 58
Magnitudes information

Mwp:5.7

Field Value
Value 5.7
Uncertainty 0.1
Num. used stations 8
Type of magnitude Mwp
Reference to an origin 116815151
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-04-28 01:29:25

Mwpd:5.7

Field Value
Value 5.7
Uncertainty 0.1
Num. used stations 8
Type of magnitude Mwpd
Reference to an origin 116815151
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-04-28 01:29:25

mb:5.3

Field Value
Value 5.3
Uncertainty 0.2
Num. used stations 46
Type of magnitude mb
Reference to an origin 116815151
Agency INGV
Autore Auto added
Time of creation (UTC) 2023-04-28 01:29:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IU.TEIG.BHZ.00 2023-04-28T01:20:52.25 10.0 positive automatic P 305 10414.1199 -2.04768 0.124853
AU.WRKA.BHZ.00 2023-04-28T01:20:50.55 10.0 positive automatic P 159 10301.355 0.794457 0.121735
WM.TIO.BHZ. 2023-04-28T01:20:47.85 10.0 positive automatic P 18 10261.8279 -0.395713 0.124101
G.ATD.BHZ.00 2023-04-28T01:20:41.80 10.0 positive automatic P 68 10062.1167 0.64471 0.12334
AU.ARMA.BHZ. 2023-04-28T01:20:36.15 10.0 positive automatic P 180 9949.5516 2.39704 0.133567
ES.EFAM.HHZ. 2023-04-28T01:20:35.80 10.0 positive automatic P 13 9973.6164 -0.198052 0.125539
IU.MACI.BHZ.00 2023-04-28T01:20:30.15 10.0 positive automatic P 10 9844.4124 -0.674742 0.130304
CU.MTDJ.BHZ.00 2023-04-28T01:20:24.95 10.0 positive automatic P 314 9750.351 -1.74576 0.135884
AU.FORT.BHZ.00 2023-04-28T01:20:24.30 10.0 positive automatic P 160 9672.6288 1.07054 0.141326
G.TAM.BHZ.00 2023-04-28T01:20:22.90 10.0 positive automatic P 31 9671.5854 -1.74994 0.133503
GE.BOAB.BHZ. 2023-04-28T01:20:13.55 10.0 positive automatic P 304 9515.3196 -2.14885 0.147776
G.CAN.BHZ.00 2023-04-28T01:20:12.55 10.0 positive automatic P 177 9401.9553 1.40223 0.141271
NZ.OUZ.HHZ.10 2023-04-28T01:20:04.75 10.0 positive automatic P 198 9234.2121 0.265284 0.159958
IU.SJG.BHZ.00 2023-04-28T01:20:03.90 10.0 positive automatic P 324 9320.6367 -2.96422 0.0300866
II.JTS.BHZ.00 2023-04-28T01:20:03.22 10.0 positive automatic P 304 9265.4142 -2.00677 0.148772
AU.TOO.BHZ.00 2023-04-28T01:20:00.28 10.0 positive automatic P 175 9138.8964 1.06261 0.156477
CU.ANWB.BHZ.00 2023-04-28T01:19:55.00 10.0 positive automatic P 328 9137.1426 -3.03834 0.160264
NZ.URZ.HHZ.10 2023-04-28T01:19:46.12 10.0 positive automatic P 200 8841.1278 1.21235 0.175351
GE.KMBO.BHZ.00 2023-04-28T01:19:32.82 10.0 positive automatic P 69 8531.7375 1.36216 0.183818
IU.SNZO.BHZ.00 2023-04-28T01:19:32.82 10.0 positive automatic P 197 8552.3946 2.18796 0.182931
CU.GRGR.BHZ.00 2023-04-28T01:19:27.82 10.0 positive automatic P 326 8543.8365 -1.42632 0.155525
NZ.KHZ.HHZ.10 2023-04-28T01:19:27.71 10.0 positive automatic P 196 8450.43 2.15701 0.174881
IU.SDV.BHZ.00 2023-04-28T01:19:26.87 10.0 positive automatic P 316 8513.6778 -1.00106 0.301874
II.MBAR.BHZ.00 2023-04-28T01:19:17.10 10.0 positive automatic P 62 8253.8934 0.717395 0.18331
NZ.ODZ.HHZ.10 2023-04-28T01:19:15.13 10.0 positive automatic P 194 8204.5872 1.7174 0.202631
GE.SBV.BHZ. 2023-04-28T01:19:05.35 10.0 positive automatic P 86 8025.3666 0.903811 0.20775
G.RER.BHZ.00 2023-04-28T01:18:43.60 10.0 positive automatic P 96 7619.595 1.08534 0.22511
G.MPG.BHZ.00 2023-04-28T01:18:33.50 10.0 positive automatic P 333 7537.4217 -2.4767 0.224817
II.ABPO.BHZ.00 2023-04-28T01:18:28.12 10.0 positive automatic P 87 7349.2656 1.66565 0.253781
GE.VOI.BHZ. 2023-04-28T01:18:10.20 10.0 positive automatic P 88 7038.0216 2.63477 0.263856
IU.LSZ.BHZ.00 2023-04-28T01:17:45.72 10.0 positive automatic P 67 6678.4815 -0.493324 0.293035
II.NNA.BHZ.00 2023-04-28T01:17:43.37 10.0 positive automatic P 302 6646.7355 -0.0381881 0.303882
IU.TSUM.BHZ.00 2023-04-28T01:16:47.67 10.0 positive automatic P 59 5767.8708 -0.0641084 0.392886
GT.LBTB.BHZ.00 2023-04-28T01:16:36.78 10.0 positive automatic P 71 5607.387 0.0718211 0.43598
IU.CASY.BHZ.00 2023-04-28T01:16:35.27 10.0 positive automatic P 160 5559.9012 1.03968 0.395258
GE.WIN.BHZ. 2023-04-28T01:16:23.00 10.0 positive automatic P 60 5412.8928 0.104499 0.43598
GT.BOSA.BHZ.00 2023-04-28T01:16:12.43 10.0 positive automatic P 73 5251.4766 0.406637 0.485255
II.SHEL.BHZ.00 2023-04-28T01:16:08.87 10.0 positive automatic P 30 5200.1502 -0.908747 0.483373
C.GO02.BHZ. 2023-04-28T01:15:55.40 10.0 positive automatic P 302 4998.4521 0.359336 0.192052
AF.ALKP.BHZ. 2023-04-28T01:15:52.87 10.0 positive automatic P 71 4968.9705 0.181707 0.529408
C.GO03.BHZ. 2023-04-28T01:15:39.58 10.0 positive automatic P 299 4792.8135 -0.160279 0.56251
GT.VNDA.BHZ.00 2023-04-28T01:15:35.50 10.0 positive automatic P 183 4707.0549 0.691896 0.0570091
IU.SBA.BHZ.00 2023-04-28T01:15:32.35 10.0 positive automatic P 185 4652.343 0.923905 0.583583
II.SUR.BHZ.00 2023-04-28T01:15:32.02 10.0 positive automatic P 71 4668.2049 0.092379 0.573181
IU.LCO.BHZ.00 2023-04-28T01:15:31.47 10.0 positive automatic P 298 4679.2938 0.347807 0.291717
C1.CO02.BHZ. 2023-04-28T01:15:17.55 10.0 positive automatic P 296 4485.8652 -0.0209845 0.224363
GT.CPUP.BHZ.00 2023-04-28T01:15:07.08 10.0 positive automatic P 316 4350.5229 0.789608 0.979491
WA.ZON.HHZ. 2023-04-28T01:15:06.04 10.0 positive automatic P 298 4338.6903 -0.503558 0.742809
G.PEL.BHZ.00 2023-04-28T01:15:02.50 10.0 positive automatic P 294 4287.708 0.11278 0.915657
AU.MAW.BHZ. 2023-04-28T01:14:50.60 10.0 positive automatic P 141 4118.0889 0.667429 0.720582
C1.BO02.BHZ. 2023-04-28T01:14:50.30 10.0 positive automatic P 293 4140.6885 -1.33159 0.780617
C.GO06.BHZ. 2023-04-28T01:14:19.60 10.0 positive automatic P 287 3747.7485 -1.85902 0.95521
C1.LL02.BHZ. 2023-04-28T01:13:57.58 10.0 positive automatic P 282 3462.2676 -1.30708 0.898876
G.COYC.BHZ.00 2023-04-28T01:13:45.00 10.0 positive automatic P 279 3283.2801 1.04471 0.851064
II.EFI.BHZ.00 2023-04-28T01:12:00.02 10.0 positive automatic P 283 2067.2751 0.863898 0.930233
IU.PMSA.BHZ.00 2023-04-28T01:11:45.02 10.0 positive automatic P 238 1906.2474 0.436909 0.0869565
GE.SNAA.BHZ. 2023-04-28T01:11:19.06 10.0 positive automatic P 150 1705.4817 -1.34394 1.52038
II.HOPE.BHZ.00 2023-04-28T01:09:38.22 10.0 positive automatic P 317 811.41 1.41706 0.909091
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