Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mwp 5.7 on date 04-12-2022 and time 09:53:13 (UTC) in region Gabon

A magnitude Mwp 5.7 earthquake occured in region: Gabon, on

  • 04-12-2022 09:53:13 (UTC)
  • 04-12-2022 10:53:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) -0.9700, 10.1950 at 2 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 5.7
Mwpd 5.7 		2022-12-04
09:53:13		 -0.9703 10.1953 2 2022-12-04
13:41:42		 Sala Sismica INGV-Roma 112494371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-12-04 09:53:13
Latitude -0.9703
Longitude 10.1953
Depth (km) 2 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 112494371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 18060
Semi-minor axis of confidence ellipse (meter) 13085
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 104
Circular confidence region, given by single value of horizontal uncertainty (meter) 14577.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 43.5948
Number of associated phases, regardless of their use for origin computation 87
Number of defining phases 87
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.21983
Epicentral distance of station closest to the epicenter (degree) 16.85256
Epicentral distance of station farthest from the epicenter (degree) 87.82103
Number of stations at which the event was observed 87
Number of stations from which data was used for origin computation 87
Magnitudes information

Mwpd:5.7

Field Value
Value 5.7
Uncertainty 0.1
Num. used stations 21
Type of magnitude Mwpd
Reference to an origin 112494371
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-12-04 13:41:42

Mwp:5.7

Field Value
Value 5.7
Uncertainty 0.1
Num. used stations 22
Type of magnitude Mwp
Reference to an origin 112494371
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-12-04 13:41:42

mb:5.4

Field Value
Value 5.4
Uncertainty 0.1
Num. used stations 80
Type of magnitude mb
Reference to an origin 112494371
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-12-04 13:41:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
KO.GURO.HHZ. 2022-12-04T10:07:15.23 10.0 positive automatic ScP 33 5458.203 -4.37785 0
MN.RTC.BHZ. 2022-12-04T10:06:37.67 10.0 negative automatic ScP 337 4268.061 2.00461 0
US.BINY.BHZ.00 2022-12-04T10:06:05.55 10.0 positive automatic P 312 9748.131 3.12962 0.11101
US.LONY.BHZ.00 2022-12-04T10:06:01.33 10.0 positive automatic P 315 9653.1372 3.05125 0.114737
G.TAM.BHZ.00 2022-12-04T10:05:51.95 10.0 negative automatic ScP 349 2685.2676 3.26687 0
C1.LL02.BHZ. 2022-12-04T10:05:42.80 10.0 positive automatic P 227 9272.6292 1.69273 0.14362
DK.NOR.BHZ. 2022-12-04T10:05:40.35 10.0 negative automatic P 356 9266.3022 -0.404999 0.131572
C.GO05.BHZ. 2022-12-04T10:05:40.30 10.0 negative automatic P 235 9212.3229 2.04465 0.120903
C.GO06.BHZ. 2022-12-04T10:05:40.18 10.0 negative automatic P 230 9208.782 1.88663 0.146777
IN.SHL.HHZ. 2022-12-04T10:05:38.83 10.0 negative automatic P 64 9202.0887 1.07008 0.139106
IU.PMSA.BHZ.00 2022-12-04T10:05:36.92 10.0 positive automatic P 204 9153.8814 1.41201 0.152807
GT.PLCA.BHZ.00 2022-12-04T10:05:36.55 10.0 negative automatic P 229 9141.9489 1.42984 0.148444
C1.BO02.BHZ. 2022-12-04T10:05:35.85 10.0 negative automatic P 235 9106.2957 2.43572 0.151169
G.PEL.BHZ.00 2022-12-04T10:05:34.85 10.0 negative automatic P 237 9082.8303 2.58714 0.158439
C.GO04.BHZ. 2022-12-04T10:05:34.03 10.0 positive automatic P 240 9071.7969 2.04135 0.159323
IU.LCO.BHZ.00 2022-12-04T10:05:33.27 10.0 negative automatic P 241 9054.0702 2.10439 0.15701
CX.MNMCX.BHZ. 2022-12-04T10:05:24.90 10.0 negative automatic P 251 8883.9294 1.92905 0.0834032
GE.SFJD.BHZ.00 2022-12-04T10:05:22.87 10.0 positive automatic P 340 8871.2754 0.854464 0.175814
GE.DAG.BHZ. 2022-12-04T10:05:19.32 10.0 negative automatic P 354 8813.2002 0.197183 0.168692
DK.NUUK.BHZ.00 2022-12-04T10:05:18.60 10.0 negative automatic P 337 8773.2624 1.43682 0.179888
GT.LPAZ.BHZ.00 2022-12-04T10:05:16.43 10.0 negative automatic P 254 8715.8643 1.29415 0.184754
IO.EVN.BHZ. 2022-12-04T10:05:15.90 10.0 negative automatic P 61 8731.815 -0.0610854 0.171435
AU.MAW.BHZ. 2022-12-04T10:04:59.10 10.0 negative automatic P 162 8404.7091 0.551129 0.200611
DK.NRS.BHZ. 2022-12-04T10:04:55.30 10.0 positive automatic P 336 8332.9587 0.454322 0.204614
II.AAK.BHZ.00 2022-12-04T10:04:37.97 10.0 negative automatic P 44 8001.657 0.40913 0.256729
IU.KEV.BHZ.00 2022-12-04T10:04:33.67 10.0 positive automatic P 6 7949.6313 -0.805664 0.262053
II.PALK.BHZ.00 2022-12-04T10:04:31.02 10.0 negative automatic P 82 7858.7889 1.43532 0.26517
GE.SNAA.BHZ. 2022-12-04T10:04:31.86 10.0 negative automatic P 184 7901.9013 -0.142063 0.243771
GE.MALK.BHZ. 2022-12-04T10:04:30.37 10.0 negative automatic P 81 7849.5204 1.353 0.2791
GE.HALK.BHZ. 2022-12-04T10:04:30.65 10.0 negative automatic P 83 7848.6546 1.68147 0.260157
II.ARTI.BHZ.00 2022-12-04T10:04:18.92 10.0 negative automatic P 26 7682.3322 -0.86795 0.290273
GE.KAAM.BHZ. 2022-12-04T10:03:40.12 10.0 positive automatic P 89 6972.0654 1.54918 0.355349
GE.VSU.BHZ. 2022-12-04T10:03:24.45 10.0 negative automatic P 10 6755.3712 -0.991692 0.39003
BL.PMNB.HHZ. 2022-12-04T10:03:09.33 10.0 negative automatic P 249 6461.5764 2.00756 0.433371
II.ESK.BHZ.00 2022-12-04T10:03:01.27 10.0 positive automatic P 351 6365.295 0.16903 0.439917
PL.SUW.BHZ. 2022-12-04T10:02:50.39 10.0 negative automatic P 9 6218.7528 -1.31207 0.439012
IU.KIEV.BHZ.00 2022-12-04T10:02:36.32 10.0 negative automatic P 15 6011.1828 -1.86855 0.466121
II.KIV.BHZ.00 2022-12-04T10:02:32.72 10.0 negative automatic P 29 5933.9712 -0.527827 0.466055
GE.IBBN.BHZ. 2022-12-04T10:02:32.20 10.0 negative automatic P 358 5917.8318 0.174631 0.468174
GE.FLT1.BHZ. 2022-12-04T10:02:31.25 10.0 negative automatic P 1 5916.9438 -0.70511 0.458327
PL.KSP.BHZ. 2022-12-04T10:02:22.36 10.0 negative automatic P 5 5779.8477 -0.488896 0.520419
IU.GNI.BHZ.00 2022-12-04T10:02:20.22 10.0 negative automatic P 33 5748.0573 -0.717796 0.24807
PL.OJC.BHZ. 2022-12-04T10:02:20.14 10.0 positive automatic P 8 5754.6507 -1.03018 0.500745
GE.MORC.BHZ. 2022-12-04T10:02:14.95 10.0 negative automatic P 6 5676.0738 -0.975569 0.479623
GE.WLF.BHZ. 2022-12-04T10:02:13.10 10.0 negative automatic P 357 5633.4609 0.141632 0.506283
IU.GRFO.BHZ.00 2022-12-04T10:02:12.10 10.0 negative automatic P 1 5624.0037 -0.237228 0.530649
CZ.KHC.BHZ. 2022-12-04T10:02:08.50 10.0 negative automatic P 3 5570.4351 -0.237663 0.538338
GE.PSZ.BHZ. 2022-12-04T10:02:03.70 10.0 negative automatic P 9 5506.7766 -0.71836 0.560281
G.ECH.BHZ.00 2022-12-04T10:02:01.45 10.0 negative automatic P 357 5467.3272 -0.188837 0.579641
II.BFO.BHZ.00 2022-12-04T10:02:01.92 10.0 negative automatic P 358 5475.0528 -0.253391 0.565006
OE.ARSA.BHZ. 2022-12-04T10:01:55.62 10.0 positive automatic P 5 5377.2396 0.214897 0.593507
GE.TIRR.BHZ. 2022-12-04T10:01:52.54 10.0 positive automatic P 17 5354.2626 -1.1847 0.557265
OE.DAVA.BHZ. 2022-12-04T10:01:52.92 10.0 negative automatic P 360 5356.3827 -1.21192 0.54485
MN.BZS.BHZ. 2022-12-04T10:01:49.47 10.0 positive automatic P 11 5291.814 0.0766069 0.606806
HU.KOVH.BHZ. 2022-12-04T10:01:48.35 10.0 positive automatic P 7 5280.2811 -0.241017 0.608614
IV.PTCC.BHZ. 2022-12-04T10:01:47.80 10.0 positive automatic P 3 5267.7492 0.00800454 0.582826
G.SSB.BHZ.00 2022-12-04T10:01:40.65 10.0 negative automatic P 355 5163.5091 0.205017 0.572532
IV.MONC.BHZ. 2022-12-04T10:01:37.37 10.0 positive automatic P 358 5115.5682 0.359113 0.605861
MN.BLY.BHZ. 2022-12-04T10:01:37.27 10.0 positive automatic P 7 5121.2958 -0.104566 0.619055
MN.DIVS.BHZ. 2022-12-04T10:01:35.70 10.0 negative automatic P 10 5095.7436 0.000597835 0.615892
IV.BOB.BHZ. 2022-12-04T10:01:34.55 10.0 negative automatic P 359 5077.2621 0.182574 0.625956
IU.ANTO.BHZ.00 2022-12-04T10:01:34.37 10.0 positive automatic P 24 5079.3822 -0.174844 0.656141
MN.VLC.BHZ. 2022-12-04T10:01:30.17 10.0 positive automatic P 0 5009.208 0.731256 0.667752
HL.RDO.HHZ. 2022-12-04T10:01:22.44 10.0 positive automatic P 17 4923.6492 -0.770687 0.63267
HT.ALN.HHZ. 2022-12-04T10:01:22.10 10.0 positive automatic P 17 4914.6804 -0.462327 0.648746
IV.MGAB.BHZ. 2022-12-04T10:01:19.90 10.0 negative automatic P 2 4874.5539 0.15704 0.643255
MN.AQU.BHZ. 2022-12-04T10:01:16.82 10.0 positive automatic P 3 4819.5201 1.04941 0.637462
G.FOMA.BHZ.00 2022-12-04T10:01:12.00 10.0 negative automatic P 127 4756.905 0.907498 0.661914
HT.LIT.HHZ. 2022-12-04T10:01:08.56 10.0 positive automatic P 14 4726.2135 -0.375157 0.632335
II.RAYN.BHZ.00 2022-12-04T10:01:06.04 10.0 negative automatic P 52 4678.539 0.596215 0.715124
GE.CSS.BHZ. 2022-12-04T10:01:03.25 10.0 negative automatic P 29 4655.3844 -0.452301 0.678232
GE.SBV.BHZ. 2022-12-04T10:01:00.40 10.0 negative automatic P 109 4578.6945 2.41951 0.67534
GE.VOI.BHZ. 2022-12-04T10:01:00.35 10.0 negative automatic P 123 4585.8762 0.948141 0.705554
HT.AGG.HHZ. 2022-12-04T10:00:59.99 10.0 negative automatic P 14 4608.1095 -0.269072 0.721997
HL.ARG.HHZ. 2022-12-04T10:00:53.51 10.0 negative automatic P 22 4523.3055 -0.378032 0.699757
HL.ITM.HHZ. 2022-12-04T10:00:44.71 10.0 positive automatic P 15 4402.815 -0.216456 0.776133
GE.EIL.BHZ. 2022-12-04T10:00:36.65 10.0 negative automatic P 36 4294.3458 -0.0681456 0.773004
G.ATD.BHZ.00 2022-12-04T10:00:06.00 10.0 positive automatic P 68 3859.026 2.63235 0.813116
II.SUR.BHZ.00 2022-12-04T09:59:46.47 10.0 positive automatic P 163 3658.8486 -1.41677 0.889367
AF.ALKP.BHZ. 2022-12-04T09:59:29.70 10.0 negative automatic P 160 3458.1162 -2.1822 0.906242
GT.BOSA.BHZ.00 2022-12-04T09:59:29.70 10.0 negative automatic P 154 3458.8932 -2.27647 0.916753
GE.KMBO.BHZ.00 2022-12-04T09:58:57.32 10.0 negative automatic P 91 3002.7276 1.75425 0.727273
GE.WIN.BHZ. 2022-12-04T09:58:12.20 10.0 positive automatic P 163 2510.2317 -1.60352 0.909091
II.SHEL.BHZ.00 2022-12-04T09:58:05.67 10.0 positive automatic P 226 2410.7202 1.64568 0.888889
II.MBAR.BHZ.00 2022-12-04T09:57:51.37 10.0 positive automatic P 89 2280.3063 -0.124756 0.963855
IU.TSUM.BHZ.00 2022-12-04T09:57:39.37 10.0 negative automatic P 159 2177.3871 -2.00027 0.888889
GT.DBIC.BHZ.00 2022-12-04T09:57:08.63 10.0 positive automatic P 297 1870.6386 0.0646503 0.963855
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