Earthquake with magnitude of Mwp 6.0 on date 31-08-2020 and time 17:24:06 (UTC) in region British Indian Ocean Territory [Sea]

A magnitude Mwp 6.0 earthquake occured in region: British Indian Ocean Territory [Sea], on

  • 31-08-2020 17:24:06 (UTC)
  • 31-08-2020 19:24:06 (UTC +02:00) Italian time
  • 31-08-2020 23:24:06 (UTC +06:00) local time in the region of the earthquake (Indian/Chagos)

and geographic coordinates (lat, lon) -3.92, 70.05 at 10 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
Reviewed
Rev100
mb 5.4
Mwp 6.0

Mwpd 6.1
2020-08-31
17:24:06
-3.92 70.05 10 2020-08-31
17:47:46
Sala Sismica INGV-Roma 82498441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-31 17:24:06
Latitude -3.92
Longitude 70.05
Depth (km) 10 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 82498441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 18344
Semi-minor axis of confidence ellipse (meter) 14794
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 4
Circular confidence region, given by single value of horizontal uncertainty (meter) 14807.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 31.0434
Number of associated phases, regardless of their use for origin computation 120
Number of defining phases 120
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.60429
Epicentral distance of station closest to the epicenter (degree) 4.23333
Epicentral distance of station farthest from the epicenter (degree) 83.83211
Number of stations at which the event was observed 119
Number of stations from which data was used for origin computation 119
Magnitudes information

Mwp:6

Field Value
Value 6
Uncertainty 0.1
Num. used stations 75
Type of magnitude Mwp
Reference to an origin 82498441
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2020-08-31 17:47:46

Mwpd:6.1

Field Value
Value 6.1
Uncertainty 0.1
Num. used stations 76
Type of magnitude Mwpd
Reference to an origin 82498441
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2020-08-31 17:47:46

mb:5.4

Field Value
Value 5.4
Uncertainty 0.1
Num. used stations 110
Type of magnitude mb
Reference to an origin 82498441
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2020-08-31 17:47:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
II.NIL.BHZ.00 2020-08-31T17:37:13.57 10.0 negative automatic S 4 37.6881 4.83437 0
II.ESK.BHZ.00 2020-08-31T17:36:36.47 10.0 positive automatic P 327 83.8321 2.47291 0.137774
LX.MORF.BHZ. 2020-08-31T17:36:35.60 10.0 positive automatic P 308 83.4483 3.51588 0.134669
LX.MESJ.BHZ. 2020-08-31T17:36:32.74 10.0 negative automatic P 309 83.2053 1.96738 0
GE.MTE.BHZ. 2020-08-31T17:36:31.95 10.0 negative automatic P 311 83.1662 1.2758 0.116244
PM.PESTR.BHZ. 2020-08-31T17:36:30.31 10.0 negative automatic P 310 82.9091 1.03519 0.12026
PM.PVAQ.BHZ. 2020-08-31T17:36:29.89 10.0 negative automatic P 308 82.7347 1.5589 0.069415
GB.MCH1.BHZ. 2020-08-31T17:36:28.82 10.0 positive automatic P 324 82.801 0.14058 0.144327
RD.ROSF.BHZ. 2020-08-31T17:36:26.48 10.0 positive automatic P 320 81.991 2.03029 0.153968
GB.JSA.BHZ. 2020-08-31T17:36:22.26 10.0 negative automatic P 321 81.5215 0.315338 0.122559
AU.ARMA.BHZ. 2020-08-31T17:36:19.75 10.0 positive automatic P 120 80.7544 1.70253 0.153407
IU.YSS.BHZ.00 2020-08-31T17:36:19.15 10.0 positive automatic P 41 81.2256 -1.23381 0.156294
GE.SNAA.BHZ. 2020-08-31T17:36:18.26 10.0 positive automatic P 198 80.9555 -0.810263 0.166184
AU.EIDS.BHZ. 2020-08-31T17:36:16.82 10.0 positive automatic P 115 80.2188 1.80898 0.141048
IU.YAK.BHZ.00 2020-08-31T17:36:11.07 10.0 negative automatic P 24 79.8451 -1.90425 0.172333
RD.MFF.BHZ. 2020-08-31T17:36:11.80 10.0 positive automatic P 319 79.4763 0.801839 0.165705
G.CAN.BHZ.00 2020-08-31T17:36:10.35 10.0 negative automatic P 125 78.717 3.44269 0.182811
IU.KEV.BHZ.00 2020-08-31T17:36:09.27 10.0 positive automatic P 346 79.1498 0.0860768 0.183011
IU.KONO.BHZ.00 2020-08-31T17:36:08.87 10.0 negative automatic P 333 79.0642 0.136668 0.183828
G.CLF.BHZ.00 2020-08-31T17:36:05.90 10.0 positive automatic P 321 78.3769 0.959507 0.181803
IU.PMG.BHZ.00 2020-08-31T17:35:57.77 10.0 positive automatic P 99 76.654 2.47275 0.193762
RD.MTLF.BHZ. 2020-08-31T17:35:57.52 10.0 negative automatic P 316 76.8838 0.876022 0.14274
RD.LOR.BHZ. 2020-08-31T17:35:57.48 10.0 negative automatic P 320 77.1058 -0.434907 0.182212
GE.WLF.BHZ. 2020-08-31T17:35:53.65 10.0 negative automatic P 323 76.58 -1.26173 0.0961639
G.SSB.BHZ.00 2020-08-31T17:35:51.50 10.0 negative automatic P 319 75.9641 0.0116954 0.204917
IU.CTAO.BHZ.00 2020-08-31T17:35:51.60 10.0 negative automatic P 110 75.7011 1.67364 0.212345
GT.DBIC.BHZ.00 2020-08-31T17:35:49.40 10.0 negative automatic P 278 75.5159 0.575356 0.219331
G.ECH.BHZ.00 2020-08-31T17:35:47.55 10.0 negative automatic P 322 75.4027 -0.698995 0.220516
IU.MAJO.BHZ.00 2020-08-31T17:35:45.97 10.0 positive automatic P 51 75.0684 -0.329756 0.218822
II.BFO.BHZ.00 2020-08-31T17:35:43.82 10.0 positive automatic P 323 74.7364 -0.586816 0.22755
JP.JGF.BHZ. 2020-08-31T17:35:42.85 10.0 positive automatic P 51 74.1393 1.91485 0.233949
G.INU.BHZ.00 2020-08-31T17:35:38.31 10.0 negative automatic P 51 73.8118 -0.632889 0.2267
OE.DAVA.BHZ. 2020-08-31T17:35:35.82 10.0 positive automatic P 322 73.3526 -0.670265 0.242514
MN.TUE.BHZ. 2020-08-31T17:35:35.80 10.0 positive automatic P 321 73.3375 -0.661485 0.237037
IV.BOB.BHZ. 2020-08-31T17:35:32.85 10.0 negative automatic P 320 72.5655 1.13173 0.251238
IV.SALO.BHZ. 2020-08-31T17:35:29.70 10.0 negative automatic P 321 72.2355 0.00521577 0.117665
CZ.KHC.BHZ. 2020-08-31T17:35:26.60 10.0 positive automatic P 325 72.0037 -1.71623 0.245852
JP.JMN.BHZ. 2020-08-31T17:35:24.25 10.0 positive automatic P 52 70.8446 2.95982 0.270849
PL.KSP.BHZ. 2020-08-31T17:35:22.96 10.0 negative automatic P 327 71.3662 -1.45912 0.122228
OE.KBA.BHZ. 2020-08-31T17:35:22.17 10.0 negative automatic P 323 71.1574 -1.22088 0.123336
GE.VSU.BHZ. 2020-08-31T17:35:22.25 10.0 positive automatic P 338 71.2457 -1.39279 0.260021
MN.VSL.BHZ. 2020-08-31T17:35:20.02 10.0 negative automatic P 314 70.5083 0.811031 0.126815
AU.HTT.BHZ. 2020-08-31T17:35:19.47 10.0 positive automatic P 124 70.2553 1.74696 0
IV.MGAB.BHZ. 2020-08-31T17:35:15.75 10.0 negative automatic P 319 70.0381 -0.615479 0.129365
GE.MORC.BHZ. 2020-08-31T17:35:15.25 10.0 positive automatic P 327 70.1221 -1.65872 0.286113
OE.ARSA.BHZ. 2020-08-31T17:35:14.87 10.0 negative automatic P 324 69.948 -0.946293 0.262599
PL.OJC.BHZ. 2020-08-31T17:35:10.34 10.0 positive automatic P 328 69.1628 -0.589116 0.283964
MN.AQU.BHZ. 2020-08-31T17:35:09.67 10.0 negative automatic P 319 68.938 0.0782292 0.189604
G.TAM.BHZ.00 2020-08-31T17:35:07.15 10.0 positive automatic P 296 68.3329 1.21565 0.308129
IU.CASY.BHZ.00 2020-08-31T17:35:07.32 10.0 negative automatic P 164 68.4176 1.09494 0.292785
HU.KOVH.BHZ. 2020-08-31T17:35:01.30 10.0 negative automatic P 324 67.8341 -1.3101 0.280237
GE.PSZ.BHZ. 2020-08-31T17:35:01.80 10.0 negative automatic P 326 67.8071 -0.756128 0.300113
MN.BLY.BHZ. 2020-08-31T17:35:00.87 10.0 negative automatic P 322 67.6865 -0.803746 0.244671
PL.KWP.BHZ. 2020-08-31T17:34:58.78 10.0 positive automatic P 329 67.303 -0.500929 0.292622
GE.MATE.BHZ. 2020-08-31T17:34:50.90 10.0 negative automatic P 318 65.9576 0.19765 0.213589
MN.TIP.BHZ. 2020-08-31T17:34:46.32 10.0 negative automatic P 317 65.2196 0.341652 0
MN.BZS.BHZ. 2020-08-31T17:34:46.82 10.0 negative automatic P 325 65.5182 -0.998189 0.320931
MN.PDG.BHZ. 2020-08-31T17:34:43.87 10.0 negative automatic P 321 65.1993 -1.84709 0.210217
IU.KIEV.BHZ.00 2020-08-31T17:34:41.72 10.0 positive automatic P 333 64.8289 -1.61402 0.315171
AU.MAW.BHZ. 2020-08-31T17:34:35.78 10.0 negative automatic P 183 63.8752 -1.27792 0.0816719
II.TLY.BHZ.00 2020-08-31T17:34:27.82 10.0 positive automatic P 23 62.5 -0.21387 0
GE.FAKI.BHZ. 2020-08-31T17:34:26.37 10.0 negative automatic P 91 62.0781 1.24031 0.373294
HT.LIT.HHZ. 2020-08-31T17:34:22.24 10.0 positive automatic P 320 61.9031 -1.78118 0.309449
HT.AGG.HHZ. 2020-08-31T17:34:19.10 10.0 positive automatic P 319 61.4108 -1.61504 0.393314
GE.TIRR.BHZ. 2020-08-31T17:34:17.07 10.0 negative automatic P 327 61.028 -0.963526 0.378764
II.ARTI.BHZ.00 2020-08-31T17:34:16.72 10.0 negative automatic P 353 61.0515 -1.51041 0.378449
HL.ITM.HHZ. 2020-08-31T17:34:14.83 10.0 negative automatic P 317 60.7026 -1.04546 0.138409
HT.ALN.HHZ. 2020-08-31T17:34:12.29 10.0 positive automatic P 323 60.1424 0.302904 0.40548
KO.BALB.HHZ. 2020-08-31T17:33:58.97 10.0 negative automatic P 323 58.2744 -0.0861416 0.226861
GE.TNTI.BHZ. 2020-08-31T17:33:52.87 10.0 positive automatic P 87 57.4635 -0.477174 0.43804
KO.BZK.BHZ. 2020-08-31T17:33:45.28 10.0 positive automatic P 328 56.3452 -0.158273 0.424866
HL.ARG.HHZ. 2020-08-31T17:33:45.05 10.0 positive automatic P 319 56.0468 1.74732 0.461099
GE.KARP.BHZ. 2020-08-31T17:33:45.45 10.0 negative automatic P 318 56.2862 0.367919 0.399625
KO.MDUB.BHZ. 2020-08-31T17:33:43.36 10.0 negative automatic P 325 56.8568 -5.87897 0.457579
GE.WIN.BHZ. 2020-08-31T17:33:32.50 10.0 positive automatic P 245 54.4665 0.318302 0.482861
GE.SOEI.BHZ. 2020-08-31T17:33:30.57 10.0 positive automatic P 99 54.0872 1.26782 0.477582
II.SUR.BHZ.00 2020-08-31T17:33:28.82 10.0 negative automatic P 232 54.0772 -0.533627 0.477734
II.KIV.BHZ.00 2020-08-31T17:33:27.07 10.0 negative automatic P 336 53.8109 -0.207472 0.441606
IU.TSUM.BHZ.00 2020-08-31T17:33:24.77 10.0 negative automatic P 249 53.3834 0.589944 0.236073
KO.BNN.BHZ. 2020-08-31T17:33:22.70 10.0 negative automatic P 327 53.1483 0.229728 0.470445
GE.CSS.BHZ. 2020-08-31T17:33:13.90 10.0 negative automatic P 322 51.9561 0.435809 0.498882
AF.ALKP.BHZ. 2020-08-31T17:33:13.74 10.0 negative automatic P 234 52.065 -0.654545 0.497225
GE.MMRI.BHZ. 2020-08-31T17:33:12.32 10.0 negative automatic P 98 52.0458 -1.768 0.497517
IU.MAKZ.BHZ.00 2020-08-31T17:33:09.92 10.0 negative automatic P 10 51.8045 -2.45164 0.530674
KO.GAZ.BHZ. 2020-08-31T17:33:08.84 10.0 positive automatic P 326 51.1958 0.955755 0.563075
IU.MBWA.BHZ.00 2020-08-31T17:33:07.30 10.0 negative automatic P 114 51.1913 -0.41801 0.528196
AU.MORW.BHZ. 2020-08-31T17:33:01.45 10.0 negative automatic P 125 50.276 0.620721 0.569042
AF.GRHM.BHZ. 2020-08-31T17:32:59.47 10.0 positive automatic P 229 50.1515 -0.463333 0.551228
IU.GNI.BHZ.00 2020-08-31T17:32:58.12 10.0 negative automatic P 335 49.8061 0.631625 0.520577
KO.GURO.HHZ. 2020-08-31T17:32:57.63 10.0 negative automatic P 331 49.7416 0.674849 0.585175
MY.LDM.BHZ. 2020-08-31T17:32:55.52 10.0 negative automatic P 80 49.2359 2.63121 0.2676
IS.GEM.BHZ. 2020-08-31T17:32:54.80 10.0 negative automatic P 321 49.3498 1.03258 0.545402
GE.SALP.BHZ. 2020-08-31T17:32:51.35 10.0 negative automatic P 320 48.8921 1.03861 0.517842
GT.BOSA.BHZ.00 2020-08-31T17:32:51.35 10.0 negative automatic P 235 49.139 -0.986436 0.574606
IS.KZIT.BHZ. 2020-08-31T17:32:49.41 10.0 negative automatic P 318 48.6625 0.914177 0.505356
GE.EIL.BHZ. 2020-08-31T17:32:40.75 10.0 negative automatic P 317 47.5123 1.15221 0.55645
GT.LBTB.BHZ.00 2020-08-31T17:32:40.03 10.0 positive automatic P 239 47.6054 -0.45839 0.593691
MY.KKM.BHZ. 2020-08-31T17:32:37.27 10.0 negative automatic P 78 47.1569 0.337395 0.574608
II.AAK.BHZ.00 2020-08-31T17:32:32.97 10.0 positive automatic P 4 46.7255 -0.735836 0.534192
GE.JAGI.BHZ. 2020-08-31T17:32:10.97 10.0 negative automatic P 98 44.051 -1.27269 0.612848
IU.LSZ.BHZ.00 2020-08-31T17:32:01.97 10.0 negative automatic P 252 42.7137 0.346672 0.695876
MY.SBM.BHZ. 2020-08-31T17:32:00.62 10.0 positive automatic P 82 42.6129 -0.0205418 0.681526
RM.SLV.BHZ. 2020-08-31T17:31:53.42 10.0 positive automatic P 51 41.6713 0.392195 0.682892
II.NIL.BHZ.00 2020-08-31T17:31:19.62 10.0 positive automatic P 4 37.6881 -0.241819 0.739702
IU.CHTO.BHZ.00 2020-08-31T17:31:09.27 10.0 positive automatic P 50 36.4084 0.330387 0.818155
II.RAYN.BHZ.00 2020-08-31T17:31:09.17 10.0 negative automatic P 320 36.4062 0.212745 0.789986
IO.EVN.BHZ. 2020-08-31T17:31:03.80 10.0 positive automatic P 26 35.729 -0.117851 0.794105
MY.KOM.BHZ. 2020-08-31T17:30:50.62 10.0 positive automatic P 81 34.2518 0.296519 0.787269
MY.IPM.BHZ. 2020-08-31T17:30:32.32 10.0 positive automatic P 75 32.0623 1.08581 0.866917
MY.KUM.BHZ. 2020-08-31T17:30:30.52 10.0 negative automatic P 73 31.9167 0.596143 0.911295
II.UOSS.BHZ.00 2020-08-31T17:30:29.42 10.0 negative automatic P 336 31.8419 0.117886 0.871394
G.ATD.BHZ.00 2020-08-31T17:30:25.75 10.0 negative automatic P 300 31.1578 2.41331 0.885368
GE.GSI.BHZ. 2020-08-31T17:29:58.82 10.0 positive automatic P 80 27.9961 3.59447 0.869565
II.ABPO.BHZ.00 2020-08-31T17:29:45.02 10.0 positive automatic P 234 26.9216 -0.811327 0.869565
GE.SBV.BHZ. 2020-08-31T17:28:59.40 10.0 negative automatic P 243 22.0442 0.374489 0.615385
II.MSEY.BHZ.00 2020-08-31T17:27:33.17 10.0 negative automatic P 266 14.551 2.92377 0.43956
GE.HALK.BHZ. 2020-08-31T17:27:27.05 10.0 positive automatic P 47 14.5841 -3.58504 0.43956
GE.HMDM.BHZ. 2020-08-31T17:26:44.62 10.0 positive automatic P 16 11.1363 1.10341 0.8
GE.KAAM.BHZ. 2020-08-31T17:25:22.02 10.0 positive automatic P 34 5.2994 -1.43701 0.952381
II.DGAR.BHZ.00 2020-08-31T17:25:04.27 10.0 positive automatic P 146 4.2333 -4.53167 0.888889
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