Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mwp 5.8 on date 19-10-2022 and time 15:03:03 (UTC) in region Saint Helena, Ascension en Tristan da Cunha [Sea]

A magnitude Mwp 5.8 earthquake occured in region: Saint Helena, Ascension en Tristan da Cunha [Sea], on

  • 19-10-2022 15:03:03 (UTC)
  • 19-10-2022 17:03:03 (UTC +02:00) Italian time
  • 19-10-2022 15:03:03 (UTC +00:00) local time in the region of the earthquake (Atlantic/St_Helena)

and geographic coordinates (lat, lon) -7.5450, -13.5910 at 1 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 5.8
Mwpd 5.9 		2022-10-19
15:03:03		 -7.5445 -13.5914 1 2022-10-19
15:20:49		 Sala Sismica INGV-Roma 110975131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-10-19 15:03:03
Latitude -7.5445
Longitude -13.5914
Depth (km) 1 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 110975131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 13200
Semi-minor axis of confidence ellipse (meter) 4464
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 58
Circular confidence region, given by single value of horizontal uncertainty (meter) 10727.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 44.5538
Number of associated phases, regardless of their use for origin computation 90
Number of defining phases 90
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.777548
Epicentral distance of station closest to the epicenter (degree) 11.38770
Epicentral distance of station farthest from the epicenter (degree) 96.10926
Number of stations at which the event was observed 89
Number of stations from which data was used for origin computation 89
Magnitudes information

Mwp:5.8

Field Value
Value 5.8
Uncertainty 0.1
Num. used stations 35
Type of magnitude Mwp
Reference to an origin 110975131
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-10-19 15:20:49

Mwpd:5.9

Field Value
Value 5.9
Uncertainty 0.1
Num. used stations 35
Type of magnitude Mwpd
Reference to an origin 110975131
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-10-19 15:20:49

mb:5.4

Field Value
Value 5.4
Uncertainty 0.1
Num. used stations 80
Type of magnitude mb
Reference to an origin 110975131
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-10-19 15:20:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
US.SDCO.BHZ.00 2022-10-19T15:16:32.80 10.0 negative automatic P 307 10668.1323 1.44041 0.0556236
GT.VNDA.BHZ.00 2022-10-19T15:16:24.98 10.0 positive automatic P 179 10533.3561 -0.425956 0.0296776
IU.SBA.BHZ.00 2022-10-19T15:16:24.17 10.0 positive automatic P 180 10500.7998 0.12846 0.0532176
US.WMOK.BHZ.00 2022-10-19T15:16:05.23 10.0 negative automatic P 305 10030.8702 0.66705 0.0916099
US.ECSD.BHZ.00 2022-10-19T15:16:04.00 10.0 positive automatic P 314 10013.421 0.173973 0.0894786
DK.NOR.BHZ. 2022-10-19T15:15:59.75 10.0 negative automatic P 360 9896.4492 0.931591 0.0912758
II.SIMI.BHZ.00 2022-10-19T15:15:58.45 10.0 positive automatic P 51 9877.0575 0.212028 0.0752319
US.EYMN.BHZ.00 2022-10-19T15:15:51.25 10.0 negative automatic P 319 9724.5435 -0.316717 0.108604
US.MIAR.BHZ.00 2022-10-19T15:15:44.95 10.0 negative automatic P 306 9559.653 0.684021 0.119665
IU.CCM.BHZ.00 2022-10-19T15:15:39.12 10.0 positive automatic P 309 9442.104 0.117143 0.130923
GE.DAG.BHZ. 2022-10-19T15:15:36.03 10.0 positive automatic P 359 9364.3041 0.593846 0.127532
II.LVZ.BHZ.00 2022-10-19T15:15:27.72 10.0 negative automatic P 16 9181.2429 0.663071 0.150579
IU.WVT.BHZ.00 2022-10-19T15:15:23.27 10.0 negative automatic P 308 9095.784 0.320756 0.155466
US.ACSO.BHZ.00 2022-10-19T15:15:10.20 10.0 positive automatic P 313 8828.2407 0.131776 0.186009
US.TZTN.BHZ.00 2022-10-19T15:15:07.40 10.0 negative automatic P 310 8742.9039 1.51838 0.178215
IM.TKL.BHZ. 2022-10-19T15:15:05.84 10.0 positive automatic P 309 8731.482 0.538862 0.159256
AU.MAW.BHZ. 2022-10-19T15:15:00.25 10.0 positive automatic P 158 8645.2905 -0.698079 0.0284776
US.BLA.BHZ.00 2022-10-19T15:14:55.80 10.0 negative automatic P 311 8505.4638 1.81587 0.20789
IU.SSPA.BHZ.00 2022-10-19T15:14:50.97 10.0 positive automatic P 315 8443.1151 0.238844 0.218852
US.LONY.BHZ.00 2022-10-19T15:14:48.70 10.0 positive automatic P 320 8382.8754 1.0413 0.211713
GE.VSU.BHZ. 2022-10-19T15:14:35.75 10.0 negative automatic P 21 8162.1297 -0.28725 0.24054
DK.NRS.BHZ. 2022-10-19T15:14:34.15 10.0 positive automatic P 345 8109.8709 0.892243 0.245718
IU.HRV.BHZ.00 2022-10-19T15:14:31.72 10.0 negative automatic P 319 8059.044 1.16101 0.224125
II.KIV.BHZ.00 2022-10-19T15:14:28.82 10.0 positive automatic P 39 8018.0739 0.313444 0.232779
PL.SUW.BHZ. 2022-10-19T15:14:07.07 10.0 positive automatic P 22 7644.9918 -0.767293 0.242292
CU.MTDJ.BHZ.00 2022-10-19T15:14:04.83 10.0 negative automatic P 293 7561.7862 1.54324 0.303351
II.RAYN.BHZ.00 2022-10-19T15:13:48.12 10.0 positive automatic P 60 7271.7876 1.54651 0.307055
PL.OJC.BHZ. 2022-10-19T15:13:40.21 10.0 positive automatic P 23 7171.8654 -0.462367 0.348046
PL.KSP.BHZ. 2022-10-19T15:13:35.29 10.0 positive automatic P 21 7085.5074 -0.273651 0.358358
GE.MORC.BHZ. 2022-10-19T15:13:32.80 10.0 positive automatic P 22 7037.3889 0.0323162 0.373054
GE.FLT1.BHZ. 2022-10-19T15:13:32.90 10.0 positive automatic P 17 7050.3759 -0.530027 0.354165
II.ESK.BHZ.00 2022-10-19T15:13:32.72 10.0 negative automatic P 7 7043.172 -0.306426 0.36347
GE.PSZ.BHZ. 2022-10-19T15:13:28.60 10.0 positive automatic P 25 6973.5084 -0.382374 0.318822
MN.BZS.BHZ. 2022-10-19T15:13:22.22 10.0 positive automatic P 27 6859.6557 0.231186 0.368498
C1.LL02.BHZ. 2022-10-19T15:13:22.15 10.0 negative automatic P 225 6877.0272 -0.91435 0.350498
CZ.KHC.BHZ. 2022-10-19T15:13:18.80 10.0 positive automatic P 20 6821.5161 -0.947205 0.34197
IU.GRFO.BHZ.00 2022-10-19T15:13:17.22 10.0 positive automatic P 18 6791.1798 -0.625195 0.385464
HU.KOVH.BHZ. 2022-10-19T15:13:14.20 10.0 positive automatic P 25 6729.6969 0.136706 0.38415
HL.RDO.HHZ. 2022-10-19T15:13:13.12 10.0 positive automatic P 33 6712.9692 0.12339 0.356981
OE.ARSA.BHZ. 2022-10-19T15:13:13.62 10.0 positive automatic P 22 6722.1045 -0.0228755 0.403411
GT.PLCA.BHZ.00 2022-10-19T15:13:10.68 10.0 negative automatic P 227 6694.4877 -1.35102 0.397479
MN.DIVS.BHZ. 2022-10-19T15:13:09.60 10.0 positive automatic P 27 6646.9908 0.519292 0.408198
GE.EIL.BHZ. 2022-10-19T15:13:08.30 10.0 positive automatic P 49 6620.8059 0.987971 0.406761
GE.WLF.BHZ. 2022-10-19T15:13:07.70 10.0 positive automatic P 15 6631.3842 -0.284381 0.405422
OE.KBA.BHZ. 2022-10-19T15:13:06.22 10.0 positive automatic P 21 6617.6646 -1.15795 0.296743
MN.BLY.BHZ. 2022-10-19T15:13:04.07 10.0 positive automatic P 25 6567.7146 0.0503909 0.362879
II.BFO.BHZ.00 2022-10-19T15:13:02.97 10.0 positive automatic P 17 6561.1989 -0.702413 0.424211
IV.PTCC.BHZ. 2022-10-19T15:13:02.80 10.0 positive automatic P 21 6554.5278 -0.476603 0.388122
C1.BO02.BHZ. 2022-10-19T15:13:01.40 10.0 positive automatic P 234 6541.1967 -1.07481 0.265586
G.ECH.BHZ.00 2022-10-19T15:13:00.00 10.0 positive automatic P 16 6513.3135 -0.672075 0.430502
OE.DAVA.BHZ. 2022-10-19T15:12:59.02 10.0 positive automatic P 18 6509.262 -1.57281 0.329155
C1.CO02.BHZ. 2022-10-19T15:12:57.55 10.0 positive automatic P 238 6476.406 -0.900199 0.200946
HT.LIT.HHZ. 2022-10-19T15:12:56.44 10.0 positive automatic P 32 6450.2766 -0.254866 0.428648
C.GO04.BHZ. 2022-10-19T15:12:55.20 10.0 positive automatic P 239 6435.9687 -0.859492 0.274251
IV.SALO.BHZ. 2022-10-19T15:12:50.65 10.0 positive automatic P 20 6369.1911 -0.921375 0.429274
HT.AGG.HHZ. 2022-10-19T15:12:50.72 10.0 positive automatic P 33 6354.2505 0.0970086 0.362075
RD.LOR.BHZ. 2022-10-19T15:12:48.78 10.0 negative automatic P 14 6321.783 0.251351 0.456128
RD.ROSF.BHZ. 2022-10-19T15:12:46.28 10.0 negative automatic P 8 6284.0208 0.211748 0.444341
IV.BOB.BHZ. 2022-10-19T15:12:44.45 10.0 positive automatic P 20 6246.1809 0.695081 0.445245
C.GO02.BHZ. 2022-10-19T15:12:42.95 10.0 negative automatic P 245 6228.0435 0.0848327 0.468939
MN.VLC.BHZ. 2022-10-19T15:12:41.62 10.0 positive automatic P 21 6222.1716 -0.523966 0.448395
MN.BNI.BHZ. 2022-10-19T15:12:40.42 10.0 positive automatic P 17 6178.3599 0.957594 0.493424
HL.ITM.HHZ. 2022-10-19T15:12:40.12 10.0 positive automatic P 34 6182.1672 0.578639 0.397639
MN.AQU.BHZ. 2022-10-19T15:12:39.62 10.0 positive automatic P 24 6176.3397 0.406313 0.434683
IV.MGAB.BHZ. 2022-10-19T15:12:39.10 10.0 positive automatic P 23 6172.5102 0.158088 0.465528
RD.MFF.BHZ. 2022-10-19T15:12:38.00 10.0 negative automatic P 11 6155.3163 0.227046 0.479002
CX.MNMCX.BHZ. 2022-10-19T15:12:37.40 10.0 negative automatic P 252 6157.8915 -0.890414 0.291349
G.SSB.BHZ.00 2022-10-19T15:12:36.45 10.0 positive automatic P 15 6135.3474 -0.101501 0.396763
MN.CUC.BHZ. 2022-10-19T15:12:32.32 10.0 positive automatic P 27 6076.2399 -0.367248 0.467788
MN.TIP.BHZ. 2022-10-19T15:12:30.87 10.0 positive automatic P 29 6053.1408 -0.329591 0.481846
RD.PGF.BHZ. 2022-10-19T15:12:28.68 10.0 positive automatic P 20 6011.6157 0.14369 0.503998
GT.LPAZ.BHZ.00 2022-10-19T15:12:26.90 10.0 positive automatic P 255 5985.2532 -0.538131 0.515214
MN.CEL.BHZ. 2022-10-19T15:12:23.37 10.0 positive automatic P 29 5926.6452 0.514433 0.438287
RD.MTLF.BHZ. 2022-10-19T15:12:18.64 10.0 positive automatic P 14 5868.5256 -0.300623 0.491629
MN.VSL.BHZ. 2022-10-19T15:12:10.17 10.0 positive automatic P 23 5729.9421 0.513583 0.503993
WM.MAHO.BHZ. 2022-10-19T15:11:59.90 10.0 positive automatic P 18 5575.2414 0.798421 0.503178
GE.MTE.BHZ. 2022-10-19T15:11:45.20 10.0 positive automatic P 6 5357.4705 0.969206 0.582531
AF.POGA.BHZ. 2022-10-19T15:11:35.03 10.0 positive automatic P 121 5236.6248 -0.6586 0.615302
GT.CPUP.BHZ.00 2022-10-19T15:11:22.55 10.0 negative automatic P 240 5056.938 -0.375246 0.614685
II.MBAR.BHZ.00 2022-10-19T15:11:18.62 10.0 positive automatic P 83 4964.3751 2.10244 0.615038
AF.GRHM.BHZ. 2022-10-19T15:11:17.97 10.0 negative automatic P 131 4993.6791 -0.515514 0.59731
IU.LSZ.BHZ.00 2022-10-19T15:10:52.22 10.0 positive automatic P 105 4618.0662 0.973326 0.70001
II.SUR.BHZ.00 2022-10-19T15:10:41.37 10.0 negative automatic P 133 4488.7179 -0.37365 0.705267
GE.WIN.BHZ. 2022-10-19T15:09:39.15 10.0 positive automatic P 120 3674.6217 -0.127793 0.827094
IU.TSUM.BHZ.00 2022-10-19T15:09:32.72 10.0 positive automatic P 114 3598.0539 -0.431645 0.804898
II.SACV.BHZ.00 2022-10-19T15:08:24.29 10.0 negative automatic P 336 2731.3104 1.00524 0.888889
IU.RCBR.BHZ.00 2022-10-19T15:07:59.22 10.0 negative automatic P 273 2466.5199 -0.29782 0.869565
GT.DBIC.BHZ.00 2022-10-19T15:06:55.98 10.0 negative automatic P 32 1850.5254 -0.418777 0.941176
II.SHEL.BHZ.00 2022-10-19T15:05:44.32 10.0 negative automatic P 138 1264.0347 -1.06678 0.930233
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