ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of Mwp 6.2 on date 04-09-2017 and time 10:07:35 (Italy) in region South Georgia & the South Sandwich Is. [Sea]

A magnitude Mwp 6.2 earthquake occured in region: South Georgia & the South Sandwich Is. [Sea], on

  • 04-09-2017 08:07:35 (UTC)
  • 04-09-2017 10:07:35 (UTC +02:00) Italian time
  • 04-09-2017 06:07:35 (UTC -02:00) local time in the region of the earthquake (Atlantic/South_Georgia)

and geographic coordinates (lat, lon) -57.55, -25.25 at 20 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
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 mb 5.6
Mwp 6.2

Mwpd 6.3
2017-09-04
08:07:35
-57.55 -25.25 20 2017-09-04
08:26:14
Sala Sismica INGV-Roma 49685841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-09-04 08:07:35
Latitude -57.55
Longitude -25.25
Depth (km) 20 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 49685841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 13555
Semi-minor axis of confidence ellipse (meter) 6548
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 27
Circular confidence region, given by single value of horizontal uncertainty (meter) 12183.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 57.071
Number of associated phases, regardless of their use for origin computation 84
Number of defining phases 84
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.646
Epicentral distance of station closest to the epicenter (degree) 7.08378
Epicentral distance of station farthest from the epicenter (degree) 107.74625
Number of stations at which the event was observed 79
Number of stations from which data was used for origin computation 79
Magnitudes information

Mwpd:6.3

Field Value
Value 6.3
Uncertainty 0.1
Num. used stations 23
Type of magnitude Mwpd
Reference to an origin 49685841
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-09-04 08:26:14

Mwp:6.2

Field Value
Value 6.2
Uncertainty 0.1
Num. used stations 25
Type of magnitude Mwp
Reference to an origin 49685841
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-09-04 08:26:14

mb:5.6

Field Value
Value 5.6
Uncertainty 0.2
Num. used stations 68
Type of magnitude mb
Reference to an origin 49685841
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-09-04 08:26:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
US.JCT.BHZ.00 2017-09-04T08:21:54.30 10.0 negative automatic Pdiff 299 107.7463 1.87925 0
US.GOGA.BHZ.00 2017-09-04T08:21:31.25 10.0 positive automatic Pdiff 313 103.2215 -0.965522 0
IU.CTAO.BHZ.00 2017-09-04T08:21:27.57 10.0 positive automatic Pdiff 172 102.0325 0.593795 0
GE.LVC.BHZ.00 2017-09-04T08:21:26.02 10.0 positive automatic ScP 299 46.9326 -2.03921 0
II.WRAB.BHZ.00 2017-09-04T08:21:20.62 10.0 positive automatic Pdiff 161 100.6626 -0.265868 0
IU.DWPF.BHZ.00 2017-09-04T08:21:06.92 10.0 positive automatic P 312 97.7099 -0.722843 0.0445073
IU.MBWA.BHZ.00 2017-09-04T08:21:00.20 10.0 positive automatic P 147 96.0333 0.110037 0.0560193
MX.TLIG.BHZ. 2017-09-04T08:20:59.39 10.0 positive automatic P 293 96.1844 -1.54304 0
AU.QLP.BHZ. 2017-09-04T08:20:57.32 10.0 negative automatic P 171 95.3972 0.133077 0.0593877
AU.WRKA.BHZ. 2017-09-04T08:20:52.95 10.0 negative automatic P 156 94.4744 -0.0972019 0.0675924
IU.TEIG.BHZ.00 2017-09-04T08:20:46.74 10.0 positive automatic P 303 93.6313 -2.32589 0.070903
AU.ARMA.BHZ. 2017-09-04T08:20:42.47 10.0 negative automatic P 177 91.9874 0.803925 0.0810032
MX.CCIG.BHZ. 2017-09-04T08:20:40.13 10.0 positive automatic P 298 91.9693 -1.53752 0.0681392
GT.PLCA.BHZ.00 2017-09-04T08:20:32.10 10.0 negative automatic ScP 280 33.2138 -2.19639 0
C1.LL02.BHZ. 2017-09-04T08:20:27.38 10.0 negative automatic ScP 276 32.1826 -3.17531 0
AU.FORT.BHZ. 2017-09-04T08:20:26.90 10.0 positive automatic P 157 88.8511 0.00465682 0.104631
AU.HTT.BHZ. 2017-09-04T08:20:23.37 10.0 negative automatic P 167 88.0413 0.21195 0.109295
CU.GRTK.BHZ.00 2017-09-04T08:20:21.00 10.0 positive automatic P 318 87.816 -0.968884 0.0703111
AU.MORW.BHZ. 2017-09-04T08:20:20.10 10.0 negative automatic P 147 87.4712 -0.270354 0.110893
CU.GTBY.BHZ.00 2017-09-04T08:20:20.33 10.0 positive automatic P 314 87.8439 -1.78653 0.0505135
CU.TGUH.BHZ.00 2017-09-04T08:20:19.08 10.0 positive automatic P 301 87.7505 -2.77804 0.106338
CU.MTDJ.BHZ.00 2017-09-04T08:20:18.53 10.0 positive automatic P 311 87.2558 -0.90398 0.116606
G.CAN.BHZ.00 2017-09-04T08:20:17.90 10.0 positive automatic P 175 87.0001 -0.252375 0.115762
NZ.OUZ.HHZ.10 2017-09-04T08:20:11.85 10.0 negative automatic P 195 85.8754 -0.664439 0.11934
AU.MILA.BHZ. 2017-09-04T08:20:10.35 10.0 positive automatic P 176 85.2733 0.699471 0.130795
CU.SDDR.BHZ.00 2017-09-04T08:20:08.48 10.0 positive automatic P 317 85.5394 -2.46579 0.121335
GE.BOAB.BHZ. 2017-09-04T08:20:08.25 10.0 positive automatic P 302 85.5956 -2.94029 0.123721
AU.TOO.BHZ. 2017-09-04T08:20:06.10 10.0 positive automatic P 173 84.5551 0.0870469 0.120694
G.TAM.BHZ.00 2017-09-04T08:20:05.60 10.0 positive automatic P 28 84.3664 0.412596 0.133437
IU.NWAO.BHZ.00 2017-09-04T08:20:04.22 10.0 positive automatic P 149 84.1718 0.195326 0.138223
II.JTS.BHZ.00 2017-09-04T08:19:58.02 10.0 positive automatic P 301 83.3605 -1.84662 0.141661
G.HDC.BHZ.00 2017-09-04T08:19:55.15 10.0 positive automatic P 302 82.7201 -1.54179 0.123962
NZ.URZ.HHZ.10 2017-09-04T08:19:54.49 10.0 negative automatic P 198 82.3573 -0.12854 0.150107
CU.ANWB.BHZ.00 2017-09-04T08:19:46.08 10.0 positive automatic P 325 81.1004 -1.90617 0.161034
IU.SNZO.BHZ.00 2017-09-04T08:19:40.57 10.0 negative automatic P 195 79.7315 -0.0638822 0.173374
CU.BCIP.BHZ.00 2017-09-04T08:19:40.45 10.0 positive automatic P 305 80.0639 -1.97798 0.139513
II.TAU.BHZ.00 2017-09-04T08:19:38.12 10.0 positive automatic P 174 79.3434 -0.404959 0.176954
NZ.KHZ.HHZ.10 2017-09-04T08:19:35.80 10.0 negative automatic P 194 78.7997 0.265857 0.189068
G.FDF.BHZ.00 2017-09-04T08:19:30.95 10.0 positive automatic P 325 78.1258 -0.935071 0.184144
NZ.ODZ.HHZ.10 2017-09-04T08:19:24.28 10.0 positive automatic P 191 76.5497 1.25442 0.203811
CU.BBGH.BHZ.00 2017-09-04T08:19:22.00 10.0 positive automatic P 326 76.1284 1.38338 0.192368
CU.GRGR.BHZ.00 2017-09-04T08:19:17.73 10.0 positive automatic P 323 75.825 -1.16385 0.213572
IU.KOWA.BHZ.00 2017-09-04T08:19:08.82 10.0 positive automatic P 21 74.156 -0.45433 0.231018
II.MBAR.BHZ.00 2017-09-04T08:18:59.07 10.0 positive automatic P 61 71.9981 2.37779 0.257622
IU.OTAV.BHZ.00 2017-09-04T08:18:52.42 10.0 positive automatic P 302 71.4622 -1.41793 0.257593
GE.SBV.BHZ. 2017-09-04T08:18:51.65 10.0 positive automatic P 85 70.7297 2.84461 0.125623
G.MPG.BHZ.00 2017-09-04T08:18:20.95 10.0 positive automatic P 330 66.4617 -1.22404 0.309387
C1.VA02.BHZ. 2017-09-04T08:18:09.43 10.0 positive automatic P 259 64.3035 1.2402 0.339967
II.NNA.BHZ.00 2017-09-04T08:17:38.47 10.0 positive automatic P 298 59.9102 -0.322754 0.385153
IU.LSZ.BHZ.00 2017-09-04T08:17:25.92 10.0 negative automatic P 66 57.9445 0.663089 0.421252
IU.SAML.BHZ.00 2017-09-04T08:17:14.72 10.0 positive automatic P 313 56.6789 -1.41352 0.449563
GT.CPUP.BHZ.00 2017-09-04T08:14:54.68 10.0 positive automatic P 310 38.5782 -0.973851 0.765842
C.GO06.BHZ. 2017-09-04T08:16:56.43 10.0 negative automatic PcP 281 34.5312 0.467284 0
IU.RCBR.BHZ.00 2017-09-04T08:16:45.17 10.0 positive automatic P 347 52.3896 0.145627 0.243447
GT.LPAZ.BHZ.00 2017-09-04T08:16:42.48 10.0 positive automatic P 304 52.1149 -1.27666 0.525672
IU.CASY.BHZ.00 2017-09-04T08:16:41.77 10.0 positive automatic P 159 51.8363 0.923642 0.512086
IU.TSUM.BHZ.00 2017-09-04T08:16:24.77 10.0 negative automatic P 58 49.5207 1.17367 0.524975
GT.LBTB.BHZ.00 2017-09-04T08:16:15.90 10.0 negative automatic P 70 48.4036 0.89668 0.587035
GE.LVC.BHZ.00 2017-09-04T08:16:02.87 10.0 negative automatic P 299 46.9326 -1.02786 0.578278
GT.BOSA.BHZ.00 2017-09-04T08:15:48.03 10.0 negative automatic P 72 45.2716 -2.50963 0.656912
C.GO02.BHZ. 2017-09-04T08:15:48.38 10.0 negative automatic P 297 45.0784 -0.843745 0.660431
GT.VNDA.BHZ.00 2017-09-04T08:15:47.10 10.0 positive automatic P 182 44.8578 0.0507212 0.641281
IU.SBA.BHZ.00 2017-09-04T08:15:43.80 10.0 positive automatic P 184 44.3961 0.445988 0.634697
C.GO03.BHZ. 2017-09-04T08:15:34.23 10.0 positive automatic P 294 43.3462 -0.804629 0.660566
C1.VA04.BHZ. 2017-09-04T08:15:33.60 10.0 positive automatic P 280 42.8854 2.40705 0.684535
IU.LCO.BHZ.00 2017-09-04T08:15:26.92 10.0 positive automatic P 292 42.4013 -0.714014 0.685383
BL.PMNB.HHZ. 2017-09-04T08:15:25.60 10.0 positive automatic P 329 42.0427 1.11587 0.695177
C.GO04.BHZ. 2017-09-04T08:15:20.03 10.0 negative automatic P 291 41.4982 -0.204253 0.693899
C1.CO02.BHZ. 2017-09-04T08:15:13.23 10.0 positive automatic P 290 40.7616 -0.784523 0.370752
II.SUR.BHZ.00 2017-09-04T08:15:10.72 10.0 positive automatic P 71 39.9712 3.15293 0.730453
WA.ZON.HHZ. 2017-09-04T08:15:01.07 10.0 positive automatic P 292 39.3268 -0.96592 0.70964
G.PEL.BHZ.00 2017-09-04T08:14:59.65 10.0 positive automatic P 289 39.0418 0.0142639 0.699285
AU.MAW.BHZ. 2017-09-04T08:14:50.99 10.0 positive automatic P 142 38.0989 -0.612712 0.757353
C1.BO02.BHZ. 2017-09-04T08:14:48.57 10.0 negative automatic P 287 37.7969 -0.627088 0.809655
GT.PLCA.BHZ.00 2017-09-04T08:14:08.73 10.0 negative automatic P 280 33.2138 -1.12344 0.873484
C1.LL02.BHZ. 2017-09-04T08:13:59.75 10.0 positive automatic P 276 32.1826 -0.956509 0.845267
C.GO10.BHZ. 2017-09-04T08:13:04.93 10.0 negative automatic P 260 25.8918 0.14185 0.952381
C1.MG02.BHZ. 2017-09-04T08:12:55.75 10.0 positive automatic P 262 25.1025 -1.77182 0.898876
II.EFI.BHZ.00 2017-09-04T08:12:03.67 10.0 negative automatic P 273 19.6689 1.81702 0.909091
IU.PMSA.BHZ.00 2017-09-04T08:12:03.52 10.0 negative automatic P 232 19.677 1.59106 0.833333
GE.SNAA.BHZ. 2017-09-04T08:11:28.06 10.0 negative automatic P 156 16.8536 -0.948222 0.930233
II.HOPE.BHZ.00 2017-09-04T08:09:21.57 10.0 negative automatic P 293 7.0838 4.89989 0.851064
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download