ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of Mwp 6.1 on date 14-08-2018 and time 05:29:53 (Italy) in region South Georgia & the South Sandwich Is. [Sea]

A magnitude Mwp 6.1 earthquake occured in region: South Georgia & the South Sandwich Is. [Sea], on

  • 14-08-2018 03:29:53 (UTC)
  • 14-08-2018 05:29:53 (UTC +02:00) Italian time
  • 14-08-2018 01:29:53 (UTC -02:00) local time in the region of the earthquake (Atlantic/South_Georgia)

and geographic coordinates (lat, lon) -57.9, -25.06 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 5.7
Mwp 6.1

Mwpd 6.2
2018-08-14
03:29:53
-57.9 -25.07 20 2018-08-14
05:56:51
Sala Sismica INGV-Roma 59731891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-14 03:29:53
Latitude -57.90
Longitude -25.07
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 59731891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 12380
Semi-minor axis of confidence ellipse (meter) 6557
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 351
Circular confidence region, given by single value of horizontal uncertainty (meter) 11160.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 39.5041
Number of associated phases, regardless of their use for origin computation 126
Number of defining phases 126
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.72126
Epicentral distance of station closest to the epicenter (degree) 7.31434
Epicentral distance of station farthest from the epicenter (degree) 113.21501
Number of stations at which the event was observed 108
Number of stations from which data was used for origin computation 108
Magnitudes information

Mwpd:6.2

Field Value
Value 6.2
Uncertainty 0.1
Num. used stations 31
Type of magnitude Mwpd
Reference to an origin 59731891
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-08-14 05:56:51

Mwp:6.1

Field Value
Value 6.1
Uncertainty 0.1
Num. used stations 28
Type of magnitude Mwp
Reference to an origin 59731891
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-08-14 05:56:51

mb:5.7

Field Value
Value 5.7
Uncertainty 0.1
Num. used stations 78
Type of magnitude mb
Reference to an origin 59731891
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-08-14 05:56:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GE.MORC.BHZ. 2018-08-14T03:44:33.45 10.0 positive automatic Pdiff 28 113.215 -0.685216 0
OE.ARSA.BHZ. 2018-08-14T03:44:24.92 10.0 positive automatic Pdiff 28 110.3711 3.46096 0
II.BFO.BHZ.00 2018-08-14T03:44:24.57 10.0 positive automatic Pdiff 23 109.7422 5.9053 0
OE.KBA.BHZ. 2018-08-14T03:44:21.97 10.0 positive automatic Pdiff 27 109.6772 3.39462 0
MN.BZS.BHZ. 2018-08-14T03:44:21.22 10.0 positive automatic Pdiff 33 110.5191 -0.840105 0
OE.DAVA.BHZ. 2018-08-14T03:44:20.67 10.0 negative automatic Pdiff 24 109.0812 4.76638 0
HL.RDO.HHZ. 2018-08-14T03:44:13.28 10.0 positive automatic Pdiff 38 107.6583 3.95969 0
RD.MFF.BHZ. 2018-08-14T03:44:10.14 10.0 negative automatic Pdiff 18 106.5213 5.84979 0
IU.RCBR.BHZ.00 2018-08-14T03:44:09.57 10.0 positive automatic ScP 346 52.7542 -0.0402151 0
MN.PDG.BHZ. 2018-08-14T03:44:04.77 10.0 positive automatic Pdiff 33 106.9123 -1.21929 0
HT.LIT.HHZ. 2018-08-14T03:44:02.81 10.0 positive automatic Pdiff 36 105.7413 1.9524 0
HT.FNA.HHZ. 2018-08-14T03:44:01.03 10.0 positive automatic Pdiff 35 106.0243 -1.13482 0
GE.CSS.BHZ. 2018-08-14T03:43:57.60 10.0 positive automatic Pdiff 46 104.9004 0.49103 0
HT.AGG.HHZ. 2018-08-14T03:43:55.86 10.0 positive automatic Pdiff 36 104.7064 -0.423383 0
HL.KEK.HHZ. 2018-08-14T03:43:54.73 10.0 positive automatic Pdiff 34 104.5644 -0.849354 0
MN.CUC.BHZ. 2018-08-14T03:43:49.77 10.0 positive automatic Pdiff 31 103.6854 -1.97647 0
MN.TIP.BHZ. 2018-08-14T03:43:48.72 10.0 positive automatic Pdiff 32 103.1885 -0.844797 0
HL.ITM.HHZ. 2018-08-14T03:43:47.47 10.0 positive automatic Pdiff 37 102.8895 -0.702257 0
MN.CEL.BHZ. 2018-08-14T03:43:43.57 10.0 positive automatic Pdiff 32 102.0885 -1.08857 0
GE.LVC.BHZ.00 2018-08-14T03:43:43.57 10.0 negative automatic ScP 299 47.1896 -2.94351 0
MN.VSL.BHZ. 2018-08-14T03:43:41.02 10.0 positive automatic Pdiff 26 101.5705 -1.27967 0
GE.EIL.BHZ. 2018-08-14T03:43:39.65 10.0 positive automatic Pdiff 50 100.8666 0.505341 0
II.RAYN.BHZ.00 2018-08-14T03:43:36.17 10.0 positive automatic Pdiff 61 100.1336 0.216204 0
GT.VNDA.BHZ.00 2018-08-14T03:43:33.08 10.0 positive automatic ScP 182 44.5101 -1.51294 0
GE.MTE.BHZ. 2018-08-14T03:43:31.80 10.0 positive automatic P 13 99.3862 -0.870902 0.0408393
IU.PAB.BHZ.00 2018-08-14T03:43:30.17 10.0 positive automatic P 16 98.9761 -0.686558 0.042709
PM.PESTR.BHZ. 2018-08-14T03:43:25.35 10.0 positive automatic P 14 97.8682 -0.45061 0.0428661
IU.LCO.BHZ.00 2018-08-14T03:43:23.87 10.0 negative automatic ScP 293 42.6259 -3.67352 0
LX.MESJ.BHZ. 2018-08-14T03:43:20.62 10.0 positive automatic P 13 96.7755 -0.224635 0.0498928
PM.ROSA.BHZ. 2018-08-14T03:43:20.35 10.0 positive automatic P 358 96.6557 0.0374048 0.0540759
PM.PVAQ.BHZ. 2018-08-14T03:43:18.85 10.0 positive automatic P 14 96.4077 -0.320638 0.0516791
MX.TLIG.BHZ. 2018-08-14T03:43:17.55 10.0 positive automatic P 293 96.4123 -1.79433 0.0438594
C1.CO02.BHZ. 2018-08-14T03:43:17.05 10.0 negative automatic ScP 290 40.9749 -3.59588 0
LX.MORF.BHZ. 2018-08-14T03:43:17.59 10.0 positive automatic P 13 96.1942 -0.671343 0.0456323
IU.MBWA.BHZ.00 2018-08-14T03:43:15.45 10.0 negative automatic P 147 95.6848 -0.42692 0.0592303
II.CMLA.BHZ.00 2018-08-14T03:43:15.97 10.0 positive automatic P 360 95.6626 0.156656 0.0579702
TT.TATN.BHZ.00 2018-08-14T03:43:14.71 10.0 positive automatic P 30 95.2776 0.627692 0.0586673
AU.QLP.BHZ. 2018-08-14T03:43:12.62 10.0 positive automatic P 170 95.0344 -0.28816 0.0613529
WA.ZON.HHZ. 2018-08-14T03:43:11.80 10.0 negative automatic ScP 293 39.5513 -3.16051 0
G.PEL.BHZ.00 2018-08-14T03:43:10.25 10.0 positive automatic ScP 289 39.2475 -3.51394 0
GT.CPUP.BHZ.00 2018-08-14T03:43:09.35 10.0 positive automatic S 310 38.8798 -2.0809 0
AU.WRKA.BHZ. 2018-08-14T03:43:08.40 10.0 positive automatic P 156 94.1137 -0.362624 0.0657194
C.GO05.BHZ. 2018-08-14T03:43:07.00 10.0 negative automatic S 286 38.4082 2.70014 0
C1.BO02.BHZ. 2018-08-14T03:43:05.72 10.0 negative automatic ScP 287 37.9935 -3.30296 0
WM.AVE.BHZ. 2018-08-14T03:43:00.85 10.0 positive automatic P 15 92.3951 0.0762807 0.080349
MX.CCIG.BHZ. 2018-08-14T03:42:57.64 10.0 positive automatic P 298 92.2196 -2.55673 0.0759208
AU.ARMA.BHZ. 2018-08-14T03:42:56.57 10.0 positive automatic P 177 91.6317 -0.824127 0.0853094
C.GO06.BHZ. 2018-08-14T03:42:53.40 10.0 negative automatic ScP 281 34.6947 -3.56147 0
GT.PLCA.BHZ.00 2018-08-14T03:42:48.95 10.0 positive automatic ScP 281 33.3745 -3.28309 0
C1.LL01.BHZ. 2018-08-14T03:42:47.18 10.0 positive automatic ScP 277 33.1788 -4.08874 0
C1.LL02.BHZ. 2018-08-14T03:42:44.25 10.0 positive automatic ScP 276 32.3171 -4.13286 0
G.ATD.BHZ.00 2018-08-14T03:42:44.50 10.0 positive automatic P 65 88.481 1.90753 0.0936464
AU.FORT.BHZ. 2018-08-14T03:42:42.65 10.0 positive automatic P 157 88.4892 0.090197 0.101124
G.COYC.BHZ.00 2018-08-14T03:42:40.00 10.0 positive automatic ScP 273 30.8414 -3.38252 0
CU.GTBY.BHZ.00 2018-08-14T03:42:39.40 10.0 positive automatic P 314 88.1579 -1.57881 0.091835
AU.HTT.BHZ. 2018-08-14T03:42:38.95 10.0 positive automatic P 167 87.6768 0.146832 0.114782
CU.TGUH.BHZ.00 2018-08-14T03:42:38.20 10.0 positive automatic P 301 88.0146 -2.28356 0.100977
CU.MTDJ.BHZ.00 2018-08-14T03:42:37.45 10.0 positive automatic P 311 87.5603 -0.825959 0.110237
AU.MORW.BHZ. 2018-08-14T03:42:35.35 10.0 positive automatic P 147 87.1239 -0.711119 0.100471
G.CAN.BHZ.00 2018-08-14T03:42:33.95 10.0 positive automatic P 175 86.6416 0.17803 0.110599
NZ.OUZ.HHZ.10 2018-08-14T03:42:28.65 10.0 negative automatic P 195 85.5619 0.310726 0.124562
CU.SDDR.BHZ.00 2018-08-14T03:42:27.85 10.0 positive automatic P 317 85.8625 -2.06514 0.120262
GE.BOAB.BHZ. 2018-08-14T03:42:27.30 10.0 positive automatic P 301 85.8624 -2.58378 0.116254
AU.MILA.BHZ. 2018-08-14T03:42:25.45 10.0 positive automatic P 175 84.9153 0.216149 0.12757
G.TAM.BHZ.00 2018-08-14T03:42:24.10 10.0 positive automatic P 28 84.6302 0.199163 0.134448
AU.TOO.BHZ. 2018-08-14T03:42:21.37 10.0 positive automatic P 172 84.1939 -0.180823 0.13328
IU.NWAO.BHZ.00 2018-08-14T03:42:18.87 10.0 positive automatic P 149 83.8203 -0.737116 0.126137
II.JTS.BHZ.00 2018-08-14T03:42:17.22 10.0 positive automatic P 301 83.6256 -1.38047 0.136299
NZ.URZ.HHZ.10 2018-08-14T03:42:11.35 10.0 negative automatic P 197 82.0512 0.962422 0.160184
IU.PMSA.BHZ.00 2018-08-14T03:42:08.77 10.0 positive automatic ScP 233 19.5424 -2.63345 0
CU.ANWB.BHZ.00 2018-08-14T03:42:05.50 10.0 positive automatic P 325 81.444 -1.68372 0.150987
GE.SNAA.BHZ. 2018-08-14T03:42:01.76 10.0 positive automatic ScP 155 16.4935 -3.38224 0
CU.BCIP.BHZ.00 2018-08-14T03:41:59.62 10.0 positive automatic P 305 80.346 -1.69743 0.158561
II.TAU.BHZ.00 2018-08-14T03:41:54.32 10.0 negative automatic P 174 78.984 0.386632 0.184596
NZ.KHZ.HHZ.10 2018-08-14T03:41:51.80 10.0 negative automatic P 194 78.482 0.638095 0.185897
G.FDF.BHZ.00 2018-08-14T03:41:50.35 10.0 positive automatic P 324 78.4685 -0.805453 0.169402
CU.BBGH.BHZ.00 2018-08-14T03:41:41.40 10.0 positive automatic P 325 76.4733 1.45224 0.187162
NZ.ODZ.HHZ.10 2018-08-14T03:41:39.93 10.0 positive automatic P 191 76.2244 1.37413 0.215064
IU.PAYG.BHZ.00 2018-08-14T03:41:39.72 10.0 positive automatic P 291 76.543 -0.640568 0.162347
CU.GRGR.BHZ.00 2018-08-14T03:41:36.67 10.0 positive automatic P 323 76.1647 -1.53085 0.0981258
II.SACV.BHZ.00 2018-08-14T03:41:18.27 10.0 positive automatic P 1 72.8793 -0.883057 0.24198
II.MBAR.BHZ.00 2018-08-14T03:41:16.17 10.0 positive automatic P 60 72.0865 1.57234 0.239514
GE.SBV.BHZ. 2018-08-14T03:41:07.05 10.0 positive automatic P 85 70.6654 1.26203 0.224768
G.RER.BHZ.00 2018-08-14T03:40:46.55 10.0 positive automatic P 94 67.3452 1.25817 0.29213
G.MPG.BHZ.00 2018-08-14T03:40:40.45 10.0 positive automatic P 330 66.8148 -1.35586 0.305123
GT.DBIC.BHZ.00 2018-08-14T03:40:39.50 10.0 positive automatic P 22 66.6138 -1.01822 0.304091
II.ABPO.BHZ.00 2018-08-14T03:40:29.07 10.0 positive automatic P 86 64.6034 1.29557 0.356643
G.AIS.BHZ.00 2018-08-14T03:40:29.45 10.0 positive automatic P 121 64.6983 1.30676 0.346901
GE.VOI.BHZ. 2018-08-14T03:40:11.15 10.0 positive automatic P 87 61.9912 0.742053 0.365956
G.FOMA.BHZ.00 2018-08-14T03:39:54.30 10.0 positive automatic P 89 59.5873 0.44519 0.398336
IU.LSZ.BHZ.00 2018-08-14T03:39:42.57 10.0 positive automatic P 66 57.9993 -0.449317 0.430256
C1.LL01.BHZ. 2018-08-14T03:36:25.18 10.0 positive automatic P 277 33.1788 -1.57378 0.807693
IU.RCBR.BHZ.00 2018-08-14T03:39:04.92 10.0 positive automatic P 346 52.7542 -0.186999 0.476225
GT.LPAZ.BHZ.00 2018-08-14T03:39:02.13 10.0 positive automatic P 304 52.3928 -1.0595 0.527417
IU.TSUM.BHZ.00 2018-08-14T03:38:42.02 10.0 positive automatic P 57 49.6285 0.229619 0.559822
AF.POGA.BHZ. 2018-08-14T03:38:41.30 10.0 positive automatic P 77 49.6234 -0.289271 0.54718
GT.LBTB.BHZ.00 2018-08-14T03:38:32.43 10.0 positive automatic P 70 48.434 -0.190464 0.593502
GE.LVC.BHZ.00 2018-08-14T03:38:22.67 10.0 positive automatic P 299 47.1896 -0.607276 0.587121
GE.WIN.BHZ. 2018-08-14T03:38:18.10 10.0 positive automatic P 59 46.4571 0.751902 0.627961
C.GO02.BHZ. 2018-08-14T03:38:07.13 10.0 positive automatic P 297 45.3236 -1.41727 0.567139
GT.BOSA.BHZ.00 2018-08-14T03:38:07.88 10.0 positive automatic P 72 45.2865 -0.1533 0.641192
GT.VNDA.BHZ.00 2018-08-14T03:38:02.75 10.0 positive automatic P 182 44.5101 1.0972 0.662849
II.SHEL.BHZ.00 2018-08-14T03:38:01.72 10.0 positive automatic P 27 44.3519 1.26574 0.621343
IU.SBA.BHZ.00 2018-08-14T03:37:59.60 10.0 positive automatic P 184 44.0514 1.63029 0.671207
C.GO03.BHZ. 2018-08-14T03:37:53.08 10.0 negative automatic P 294 43.579 -1.20553 0.664058
C1.VA04.BHZ. 2018-08-14T03:37:50.55 10.0 positive automatic P 280 43.0437 0.699968 0.562514
IU.LCO.BHZ.00 2018-08-14T03:37:45.07 10.0 positive automatic P 293 42.6259 -1.76742 0.697511
AF.SOE.BHZ. 2018-08-14T03:37:42.90 10.0 negative automatic P 76 42.1449 0.224728 0.645065
AF.GRHM.BHZ. 2018-08-14T03:37:42.12 10.0 positive automatic P 77 42.1207 -0.319051 0.549854
C1.CO02.BHZ. 2018-08-14T03:37:32.65 10.0 negative automatic P 290 40.9749 -0.493904 0.651098
II.SUR.BHZ.00 2018-08-14T03:37:26.02 10.0 positive automatic P 71 39.9944 0.886067 0.615505
WA.ZON.HHZ. 2018-08-14T03:37:19.15 10.0 positive automatic P 293 39.5513 -2.12973 0.642727
G.PEL.BHZ.00 2018-08-14T03:37:18.30 10.0 negative automatic P 289 39.2475 -0.433767 0.761872
GT.CPUP.BHZ.00 2018-08-14T03:37:14.55 10.0 positive automatic P 310 38.8798 -1.00713 0.702175
C.GO05.BHZ. 2018-08-14T03:37:10.35 10.0 positive automatic P 286 38.4082 -1.23972 0.742924
G.SPB.BHZ.00 2018-08-14T03:37:08.90 10.0 positive automatic P 325 37.8703 1.74674 0.808166
C1.BO02.BHZ. 2018-08-14T03:37:07.07 10.0 positive automatic P 287 37.9935 -1.16298 0.768194
AU.MAW.BHZ. 2018-08-14T03:37:06.11 10.0 positive automatic P 142 37.7626 -0.0190119 0.685041
C.GO06.BHZ. 2018-08-14T03:36:38.68 10.0 positive automatic P 281 34.6947 -1.44692 0.770542
GT.PLCA.BHZ.00 2018-08-14T03:36:28.18 10.0 positive automatic P 281 33.3745 -0.453768 0.891125
C1.LL02.BHZ. 2018-08-14T03:36:19.05 10.0 positive automatic P 276 32.3171 -0.206395 0.806748
G.COYC.BHZ.00 2018-08-14T03:36:07.15 10.0 positive automatic P 273 30.8414 0.893126 0.957125
IU.PMSA.BHZ.00 2018-08-14T03:34:19.37 10.0 negative automatic P 233 19.5424 1.5338 0.930233
GE.SNAA.BHZ. 2018-08-14T03:33:39.46 10.0 negative automatic P 155 16.4935 -2.37402 0.869565
II.HOPE.BHZ.00 2018-08-14T03:31:43.97 10.0 negative automatic P 295 7.3143 6.76309 0.930233
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