Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mwp 6.0 on date 06-08-2021 and time 21:22:14 (Italy) 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

  • 06-08-2021 19:22:14 (UTC)
  • 06-08-2021 21:22:14 (UTC +02:00) Italian time
  • 06-08-2021 17:22:14 (UTC -02:00) local time in the region of the earthquake (Atlantic/South_Georgia)

and geographic coordinates (lat, lon) -59.4070, -26.1850 at 124 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 5.3
Mwp 6.0
Mwpd 6.1 		2021-08-06
19:22:14		 -59.407 -26.1849 124 2021-08-06
19:42:46		 Sala Sismica INGV-Roma 93766641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-06 19:22:14
Latitude -59.4070
Longitude -26.1849
Depth (km) 124 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 93766641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 12233
Semi-minor axis of confidence ellipse (meter) 5853
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 186
Circular confidence region, given by single value of horizontal uncertainty (meter) 10533.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69.8262
Number of associated phases, regardless of their use for origin computation 53
Number of defining phases 53
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.04265
Epicentral distance of station closest to the epicenter (degree) 7.60032
Epicentral distance of station farthest from the epicenter (degree) 106.97629
Number of stations at which the event was observed 53
Number of stations from which data was used for origin computation 53
Magnitudes information

Mwp:6.0

Field Value
Value 6.0
Uncertainty 0.1
Num. used stations 10
Type of magnitude Mwp
Reference to an origin 93766641
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-08-06 19:42:46

Mwpd:6.1

Field Value
Value 6.1
Uncertainty 0.1
Num. used stations 9
Type of magnitude Mwpd
Reference to an origin 93766641
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-08-06 19:42:46

mb:5.3

Field Value
Value 5.3
Uncertainty 0.1
Num. used stations 48
Type of magnitude mb
Reference to an origin 93766641
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-08-06 19:42:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GE.SNAA.BHZ. 2021-08-06T19:37:39.26 10.0 negative automatic ScS 152 15.4035 -0.615384 0
US.TZTN.BHZ.00 2021-08-06T19:36:18.70 10.0 positive automatic Pdiff 315 106.9763 3.03854 0
PM.ROSA.BHZ. 2021-08-06T19:35:27.68 10.0 positive automatic PcP 358 98.1384 -8.67982 0
IU.TEIG.BHZ.00 2021-08-06T19:35:17.85 10.0 negative automatic P 304 94.2442 -0.782969 0.0665168
AU.QLP.BHZ. 2021-08-06T19:35:17.65 10.0 positive automatic P 171 93.6407 1.76132 0
AU.WRKA.BHZ.00 2021-08-06T19:35:13.70 10.0 negative automatic P 157 92.9666 0.846737 0.0749063
G.ATD.BHZ.00 2021-08-06T19:35:00.20 10.0 negative automatic P 66 89.6306 2.8076 0.0845761
AU.FORT.BHZ.00 2021-08-06T19:34:47.30 10.0 positive automatic P 158 87.3203 0.863148 0.113345
G.TAM.BHZ.00 2021-08-06T19:34:42.25 10.0 negative automatic P 29 86.2300 0.891336 0.113568
AU.HTT.BHZ. 2021-08-06T19:34:42.30 10.0 positive automatic P 168 86.3397 0.519433 0.118018
GE.BOAB.BHZ. 2021-08-06T19:34:39.75 10.0 negative automatic P 303 86.1657 -1.12122 0.104727
G.CAN.BHZ.00 2021-08-06T19:34:37.20 10.0 negative automatic P 176 85.1861 1.11994 0.129939
NZ.OUZ.HHZ.10 2021-08-06T19:34:31.12 10.0 positive automatic P 196 83.9560 1.33379 0.138698
AU.MILA.BHZ.00 2021-08-06T19:34:30.15 10.0 positive automatic PcP 176 83.4571 -1.28357 0
AU.TOO.BHZ.00 2021-08-06T19:34:24.70 10.0 positive automatic P 173 82.7726 0.878247 0.15188
NZ.URZ.HHZ.10 2021-08-06T19:34:14.75 10.0 positive automatic P 198 80.4405 3.26871 0.166927
II.TAU.BHZ.00 2021-08-06T19:33:56.67 10.0 positive automatic P 175 77.5393 0.997854 0.198702
NZ.KHZ.HHZ.10 2021-08-06T19:33:55.38 10.0 negative automatic P 195 76.8800 3.40225 0.198689
II.MBAR.BHZ.00 2021-08-06T19:33:33.95 10.0 negative automatic P 61 73.3311 2.08156 0.221641
IU.OTAV.BHZ.00 2021-08-06T19:33:25.02 10.0 positive automatic P 304 72.0644 0.280321 0.250898
II.ABPO.BHZ.00 2021-08-06T19:32:43.57 10.0 negative automatic P 86 65.2979 1.13392 0.316465
GE.VOI.BHZ. 2021-08-06T19:32:26.05 10.0 positive automatic P 87 62.6497 1.00171 0.365634
II.NNA.BHZ.00 2021-08-06T19:32:10.72 10.0 positive automatic P 300 60.3674 1.09688 0.370821
GT.LPAZ.BHZ.00 2021-08-06T19:31:16.50 10.0 negative automatic P 306 52.7856 -0.222388 0.527351
IU.TSUM.BHZ.00 2021-08-06T19:31:01.92 10.0 negative automatic P 57 50.9332 -0.456666 0.538507
IU.CASY.BHZ.00 2021-08-06T19:30:56.97 10.0 positive automatic P 159 50.2782 -0.278193 0.549156
GT.LBTB.BHZ.00 2021-08-06T19:30:50.63 10.0 positive automatic P 69 49.5073 -0.990014 0.561822
GE.WIN.BHZ. 2021-08-06T19:30:38.10 10.0 positive automatic P 59 47.7352 -0.0675066 0.605572
GT.BOSA.BHZ.00 2021-08-06T19:30:25.98 10.0 negative automatic P 72 46.3097 -1.04632 0.63057
II.SHEL.BHZ.00 2021-08-06T19:30:24.92 10.0 negative automatic P 28 45.9551 0.802202 0.636866
C.GO03.BHZ. 2021-08-06T19:30:06.33 10.0 positive automatic P 297 43.7031 0.0111956 0.694114
AF.ALKP.BHZ. 2021-08-06T19:30:05.84 10.0 negative automatic P 70 43.7566 -0.964565 0.579948
BL.PMNB.HHZ. 2021-08-06T19:30:03.77 10.0 positive automatic P 331 43.4134 -0.264093 0.689484
AF.GRHM.BHZ. 2021-08-06T19:30:00.22 10.0 positive automatic P 77 43.0308 -0.68102 0.658626
C1.VA04.BHZ. 2021-08-06T19:30:00.68 10.0 positive automatic P 283 42.7776 1.89867 0.703057
GT.VNDA.BHZ.00 2021-08-06T19:29:59.98 10.0 positive automatic P 183 42.9831 -0.456869 0.109912
IU.LCO.BHZ.00 2021-08-06T19:29:59.37 10.0 negative automatic P 295 42.7046 0.812753 0.679859
IU.SBA.BHZ.00 2021-08-06T19:29:56.47 10.0 positive automatic P 184 42.5116 -0.146922 0.638803
C.GO04.BHZ. 2021-08-06T19:29:51.45 10.0 positive automatic P 294 41.7662 0.522462 0.174256
II.SUR.BHZ.00 2021-08-06T19:29:45.12 10.0 positive automatic P 70 41.0488 0.106948 0.727203
C1.CO02.BHZ. 2021-08-06T19:29:45.18 10.0 positive automatic P 293 40.9932 0.718689 0.184259
WA.ZON.HHZ. 2021-08-06T19:29:33.60 10.0 positive automatic P 295 39.6324 0.415181 0.772796
GT.CPUP.BHZ.00 2021-08-06T19:29:30.88 10.0 positive automatic P 313 39.4471 -0.659287 0.740364
G.PEL.BHZ.00 2021-08-06T19:29:30.35 10.0 positive automatic P 292 39.2270 0.544157 0.711453
C.GO05.BHZ. 2021-08-06T19:29:21.63 10.0 positive automatic P 289 38.3004 -0.349868 0.789827
C1.BO02.BHZ. 2021-08-06T19:29:18.72 10.0 negative automatic P 290 37.9258 -0.254337 0.797315
C.GO06.BHZ. 2021-08-06T19:28:49.05 10.0 positive automatic P 285 34.4639 -0.541356 0.809667
GT.PLCA.BHZ.00 2021-08-06T19:28:37.13 10.0 negative automatic P 284 33.1319 -0.906132 0.875183
C1.LL02.BHZ. 2021-08-06T19:28:27.15 10.0 negative automatic P 280 31.9521 -0.470823 0.89983
C1.MG02.BHZ. 2021-08-06T19:27:18.50 10.0 positive automatic P 267 24.4276 -2.08639 0.97561
II.EFI.BHZ.00 2021-08-06T19:26:29.82 10.0 positive automatic P 279 19.3847 0.107645 0.97561
IU.PMSA.BHZ.00 2021-08-06T19:26:16.17 10.0 positive automatic P 237 18.2030 -0.662129 0.930233
II.HOPE.BHZ.00 2021-08-06T19:24:02.52 10.0 positive automatic P 308 7.6003 0.879212 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