Earthquake with magnitude of Mwp 6.0 on date 16-12-2021 and time 21:14:56 (UTC) in region South Georgia & the South Sandwich Is. [Sea]

A magnitude Mwp 6.0 earthquake occured in region: South Georgia & the South Sandwich Is. [Sea], on

  • 16-12-2021 21:14:56 (UTC)
  • 16-12-2021 22:14:56 (UTC +01:00) Italian time
  • 16-12-2021 19:14:56 (UTC -02:00) local time in the region of the earthquake (Atlantic/South_Georgia)

and geographic coordinates (lat, lon) -59.8150, -23.8670 at 79 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 5.4
Mwp 6.0

Mwpd 6.1
2021-12-16
21:14:56
-59.8148 -23.8672 79 2021-12-16
21:34:33
Sala Sismica INGV-Roma 98600741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-16 21:14:56
Latitude -59.8148
Longitude -23.8672
Depth (km) 79 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 98600741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 12475
Semi-minor axis of confidence ellipse (meter) 11690
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 320
Circular confidence region, given by single value of horizontal uncertainty (meter) 12944.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70.6247
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.42797
Epicentral distance of station closest to the epicenter (degree) 8.79086
Epicentral distance of station farthest from the epicenter (degree) 115.56291
Number of stations at which the event was observed 50
Number of stations from which data was used for origin computation 50
Magnitudes information

Mwp:6.0

Field Value
Value 6.0
Uncertainty 0.1
Num. used stations 31
Type of magnitude Mwp
Reference to an origin 98600741
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-12-16 21:34:33

Mwpd:6.1

Field Value
Value 6.1
Uncertainty 0.1
Num. used stations 30
Type of magnitude Mwpd
Reference to an origin 98600741
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-12-16 21:34:33

mb:5.4

Field Value
Value 5.4
Uncertainty 0.1
Num. used stations 47
Type of magnitude mb
Reference to an origin 98600741
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-12-16 21:34:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
PL.OJC.BHZ. 2021-12-16T21:29:48.30 10.0 positive automatic Pdiff 29 115.5629 7.94511 0
IU.TEIG.BHZ.00 2021-12-16T21:28:11.80 10.0 positive automatic P 302 95.4508 1.15089 0.0597954
AU.EIDS.BHZ. 2021-12-16T21:28:06.85 10.0 negative automatic P 175 94.7104 -0.451942 0.0603286
AU.QLP.BHZ. 2021-12-16T21:27:59.45 10.0 negative automatic P 169 93.0430 -0.191556 0
AU.WRKA.BHZ.00 2021-12-16T21:27:55.20 10.0 negative automatic P 155 92.1168 -0.22856 0.0783194
AU.ARMA.BHZ. 2021-12-16T21:27:44.30 10.0 positive automatic P 176 89.6862 0.0654362 0.0962725
GE.BOAB.BHZ. 2021-12-16T21:27:33.95 10.0 positive automatic P 301 87.3782 0.722626 0.115663
AU.FORT.BHZ.00 2021-12-16T21:27:28.65 10.0 negative automatic P 156 86.4881 -0.211594 0.1226
G.TAM.BHZ.00 2021-12-16T21:27:27.85 10.0 positive automatic P 27 86.0393 0.982906 0.110066
AU.HTT.BHZ. 2021-12-16T21:27:24.47 10.0 positive automatic P 166 85.6718 -0.463726 0.112652
G.CAN.BHZ.00 2021-12-16T21:27:20.15 10.0 negative automatic P 174 84.6799 0.168397 0.122386
NZ.OUZ.HHZ.10 2021-12-16T21:27:16.10 10.0 positive automatic P 194 83.8701 0.332689 0.136197
AU.TOO.BHZ.00 2021-12-16T21:27:06.93 10.0 positive automatic P 172 82.2139 -0.401758 0.154938
NZ.URZ.HHZ.10 2021-12-16T21:26:58.78 10.0 positive automatic P 197 80.4033 1.12414 0.174569
IU.SNZO.BHZ.00 2021-12-16T21:26:44.37 10.0 positive automatic P 194 77.7223 1.34337 0.199259
II.TAU.BHZ.00 2021-12-16T21:26:38.62 10.0 negative automatic P 173 77.0164 -0.465068 0.186202
GE.KMBO.BHZ.00 2021-12-16T21:26:30.12 10.0 positive automatic P 65 74.9388 2.53007 0.185625
IU.OTAV.BHZ.00 2021-12-16T21:26:19.52 10.0 positive automatic P 302 73.2711 1.36589 0.217516
II.MBAR.BHZ.00 2021-12-16T21:26:14.87 10.0 negative automatic P 59 72.5220 1.51097 0.229835
G.MPG.BHZ.00 2021-12-16T21:25:51.00 10.0 positive automatic P 329 68.7767 0.611006 0.275695
GT.DBIC.BHZ.00 2021-12-16T21:25:46.25 10.0 negative automatic P 20 68.1733 -0.374283 0.299186
II.NNA.BHZ.00 2021-12-16T21:25:04.47 10.0 positive automatic P 297 61.5925 0.476274 0.347535
GT.LPAZ.BHZ.00 2021-12-16T21:24:11.45 10.0 positive automatic P 304 53.9786 0.0537768 0.508089
CX.MNMCX.BHZ. 2021-12-16T21:23:56.00 10.0 positive automatic P 301 52.0538 -0.815824 0.349731
IU.TSUM.BHZ.00 2021-12-16T21:23:42.67 10.0 negative automatic P 54 50.1914 -0.0218632 0.563684
IU.CASY.BHZ.00 2021-12-16T21:23:36.47 10.0 negative automatic P 158 49.4673 -0.513834 0.5497
GT.LBTB.BHZ.00 2021-12-16T21:23:29.63 10.0 negative automatic P 67 48.5722 -0.718144 0.584175
GE.WIN.BHZ. 2021-12-16T21:23:18.30 10.0 positive automatic P 56 46.9680 0.249975 0.618962
GT.BOSA.BHZ.00 2021-12-16T21:23:04.60 10.0 negative automatic P 69 45.3433 -0.619685 0.647804
C.GO03.BHZ. 2021-12-16T21:23:01.70 10.0 positive automatic P 295 44.9359 -0.197196 0.604743
IU.LCO.BHZ.00 2021-12-16T21:22:54.27 10.0 positive automatic P 293 43.9410 0.0330901 0.65757
C.GO04.BHZ. 2021-12-16T21:22:46.65 10.0 positive automatic P 292 43.0042 -0.0337126 0.337212
AF.ALKP.BHZ. 2021-12-16T21:22:44.88 10.0 negative automatic P 67 42.8197 -0.13348 0.620086
GT.VNDA.BHZ.00 2021-12-16T21:22:43.05 10.0 negative automatic P 182 42.6202 -0.180219 0.706022
C1.CO02.BHZ. 2021-12-16T21:22:40.45 10.0 positive automatic P 291 42.2326 0.174871 0.657866
WA.ZON.HHZ. 2021-12-16T21:22:28.75 10.0 positive automatic P 293 40.8684 -0.300603 0.713647
G.PEL.BHZ.00 2021-12-16T21:22:25.75 10.0 positive automatic P 290 40.4677 0.0105633 0.68908
II.SUR.BHZ.00 2021-12-16T21:22:23.37 10.0 negative automatic P 67 40.1052 0.436797 0.680457
G.SPB.BHZ.00 2021-12-16T21:22:21.40 10.0 positive automatic P 325 39.7946 1.23056 0.717108
C.GO05.BHZ. 2021-12-16T21:22:16.05 10.0 positive automatic P 287 39.5413 -1.92192 0.774605
C1.BO02.BHZ. 2021-12-16T21:22:14.10 10.0 positive automatic P 288 39.1671 -0.897488 0.697053
AU.MAW.BHZ. 2021-12-16T21:21:45.43 10.0 negative automatic P 140 35.8922 -1.77153 0.106917
C.GO06.BHZ. 2021-12-16T21:21:44.38 10.0 positive automatic P 283 35.6993 -1.38583 0.85283
GT.PLCA.BHZ.00 2021-12-16T21:21:33.23 10.0 positive automatic P 282 34.3667 -1.04581 0.849755
C1.LL02.BHZ. 2021-12-16T21:21:22.88 10.0 positive automatic P 278 33.1737 -0.929532 0.774133
G.COYC.BHZ.00 2021-12-16T21:21:09.90 10.0 positive automatic P 275 31.5868 -0.00244776 0.918334
C.GO10.BHZ. 2021-12-16T21:20:28.03 10.0 positive automatic P 264 26.2753 5.21958 0.869565
C1.MG02.BHZ. 2021-12-16T21:20:15.30 10.0 positive automatic P 266 25.5696 -1.03369 0.898876
II.EFI.BHZ.00 2021-12-16T21:19:26.92 10.0 negative automatic P 278 20.6052 -0.593071 0.97561
II.HOPE.BHZ.00 2021-12-16T21:16:59.77 10.0 positive automatic P 303 8.7909 0.735623 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