Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mwp 6.8 on date 08-09-2023 and time 22:11:00 (UTC) in region Morocco

A magnitude Mwp 6.8 earthquake occured in region: Morocco, on

  • 08-09-2023 22:11:00 (UTC)
  • 09-09-2023 00:11:00 (UTC +02:00) Italian time
  • 08-09-2023 23:11:00 (UTC +01:00) local time in the region of the earthquake (Africa/Casablanca)

and geographic coordinates (lat, lon) 31.0540, -8.3940 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.

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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 5.7
Mwp 6.8
Mwpd 7.0 		2023-09-08
22:11:00		 31.0535 -8.3936 10 2023-09-08
22:25:26		 Sala Sismica INGV-Roma 120894211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-08 22:11:00
Latitude 31.0535
Longitude -8.3936
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 120894211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 9459
Semi-minor axis of confidence ellipse (meter) 6533
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 334
Circular confidence region, given by single value of horizontal uncertainty (meter) 7642.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 43.76
Number of associated phases, regardless of their use for origin computation 123
Number of defining phases 123
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.3691
Epicentral distance of station closest to the epicenter (degree) 2.39287
Epicentral distance of station farthest from the epicenter (degree) 66.29848
Number of stations at which the event was observed 114
Number of stations from which data was used for origin computation 114
Magnitudes information

Mwp:6.8

Field Value
Value 6.8
Uncertainty 0.1
Num. used stations 86
Type of magnitude Mwp
Reference to an origin 120894211
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-09-08 22:25:26

Mwpd:7.0

Field Value
Value 7.0
Uncertainty 0.1
Num. used stations 71
Type of magnitude Mwpd
Reference to an origin 120894211
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-09-08 22:25:26

mb:5.7

Field Value
Value 5.7
Uncertainty 0.2
Num. used stations 87
Type of magnitude mb
Reference to an origin 120894211
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2023-09-08 22:25:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IU.CCM.BHZ.00 2023-09-08T22:21:48.10 10.0 negative automatic P 301 7359.1335 -0.451529 0.297774
US.AGMN.BHZ.00 2023-09-08T22:21:45.20 10.0 negative automatic P 313 7300.8141 0.0135029 0.307256
US.LRAL.BHZ.00 2023-09-08T22:21:41.20 10.0 negative automatic P 295 7210.9929 1.2938 0.303599
IU.WVT.BHZ.00 2023-09-08T22:21:36.72 10.0 positive automatic P 298 7155.7815 0.05066 0.296876
US.HDIL.BHZ.00 2023-09-08T22:21:34.08 10.0 negative automatic P 303 7103.9778 0.460644 0.33607
US.JFWS.BHZ.00 2023-09-08T22:21:32.98 10.0 negative automatic P 306 7091.2239 0.0988974 0.337515
CU.MTDJ.BHZ.00 2023-09-08T22:21:30.35 10.0 positive automatic P 276 7013.4906 1.99536 0.338776
US.EYMN.BHZ.00 2023-09-08T22:21:28.05 10.0 negative automatic P 312 7007.319 0.145422 0.355078
IM.TKL.BHZ. 2023-09-08T22:21:18.99 10.0 positive automatic P 297 6831.7392 1.69973 0
US.TZTN.BHZ.00 2023-09-08T22:21:15.40 10.0 negative automatic P 297 6780.3573 1.23111 0.39594
US.NHSC.BHZ.00 2023-09-08T22:21:06.00 10.0 positive automatic P 293 6615.0339 2.08653 0.393689
US.ACSO.BHZ.00 2023-09-08T22:21:04.80 10.0 positive automatic P 301 6608.3406 1.25449 0.394509
US.GLMI.BHZ.00 2023-09-08T22:21:04.15 10.0 positive automatic P 307 6598.4061 1.20526 0.391332
II.BORK.BHZ.00 2023-09-08T22:21:02.70 10.0 negative automatic P 43 6563.6298 1.931 0.418835
GE.WIN.BHZ. 2023-09-08T22:20:58.25 10.0 positive automatic P 152 6540.6306 -1.32126 0.407434
IU.LSZ.BHZ.00 2023-09-08T22:20:52.87 10.0 positive automatic P 137 6454.4169 -1.19072 0.418309
CU.SDDR.BHZ.00 2023-09-08T22:20:52.13 10.0 positive automatic P 274 6385.2528 2.54969 0.452871
US.ERPA.BHZ.00 2023-09-08T22:20:45.85 10.0 positive automatic P 303 6311.9928 0.98964 0.404422
IU.SSPA.BHZ.00 2023-09-08T22:20:37.62 10.0 negative automatic P 301 6181.2792 1.16785 0.481047
US.BINY.BHZ.00 2023-09-08T22:20:25.43 10.0 negative automatic P 302 5988.783 1.49962 0.502366
CN.GAC.BHZ. 2023-09-08T22:20:17.78 10.0 negative automatic P 306 5880.0141 1.12642 0.500117
US.LONY.BHZ.00 2023-09-08T22:20:14.35 10.0 positive automatic P 305 5829.3426 1.01272 0.538147
G.ATD.BHZ.00 2023-09-08T22:20:04.05 10.0 positive automatic P 101 5666.4612 1.63432 0.536552
US.LBNH.BHZ.00 2023-09-08T22:20:00.85 10.0 negative automatic P 304 5627.0784 1.15236 0.548677
G.MPG.BHZ.00 2023-09-08T22:19:46.75 10.0 positive automatic P 247 5429.6205 0.620962 0.501574
II.MBAR.BHZ.00 2023-09-08T22:19:45.67 10.0 positive automatic P 123 5413.3257 0.455235 0.530807
II.SHEL.BHZ.00 2023-09-08T22:19:30.32 10.0 positive automatic P 177 5225.8467 -1.66056 0.539802
IU.RCBR.BHZ.00 2023-09-08T22:19:17.52 10.0 positive automatic P 220 5026.8237 -0.328717 0.619243
II.LVZ.BHZ.00 2023-09-08T22:19:12.02 10.0 negative automatic P 22 4937.0136 0.575218 0.647923
IU.GNI.BHZ.00 2023-09-08T22:19:05.17 10.0 positive automatic P 63 4827.5454 1.47674 0.665542
IU.KEV.BHZ.00 2023-09-08T22:19:03.22 10.0 negative automatic P 17 4826.1468 -0.110569 0.650638
KO.SIRT.HHZ. 2023-09-08T22:18:53.44 10.0 positive automatic P 67 4660.4571 2.06954 0.674078
II.KIV.BHZ.00 2023-09-08T22:18:51.17 10.0 positive automatic P 57 4639.5336 1.33366 0.665407
KO.GURO.HHZ. 2023-09-08T22:18:49.59 10.0 positive automatic P 65 4612.5717 1.68764 0.691186
CN.DRLN.BHZ. 2023-09-08T22:18:41.70 10.0 negative automatic P 311 4530.132 0.106108 0.706392
DK.SCO.BHZ. 2023-09-08T22:18:38.60 10.0 negative automatic P 353 4455.9951 2.55817 0.589917
G.IVI.BHZ.00 2023-09-08T22:18:32.00 10.0 negative automatic P 331 4408.6647 -0.483877 0.6872
DK.ISOG.BHZ. 2023-09-08T22:18:28.25 10.0 negative automatic P 341 4351.9104 0.0302743 0.696265
DK.ANGG.BHZ. 2023-09-08T22:18:26.80 10.0 positive automatic P 341 4315.8243 1.30152 0.75104
RD.ROSF.BHZ. 2023-09-08T22:18:25.34 10.0 negative automatic S 11 1966.365 1.77216 0
GE.PUL.BHZ. 2023-09-08T22:18:22.40 10.0 negative automatic P 30 4276.7523 -0.156443 0.678844
DK.NRS.BHZ. 2023-09-08T22:18:22.90 10.0 negative automatic P 332 4281.7917 -0.0351597 0.723269
GE.EIL.BHZ. 2023-09-08T22:18:13.45 10.0 positive automatic P 81 4127.5239 2.2295 0.802464
GE.MSBI.BHZ. 2023-09-08T22:18:13.40 10.0 positive automatic P 78 4126.4694 2.33453 0.783988
GE.VSU.BHZ. 2023-09-08T22:18:02.00 10.0 negative automatic P 31 4026.9246 -0.476821 0.765964
GE.CSS.BHZ. 2023-09-08T22:17:53.65 10.0 positive automatic P 72 3879.9495 1.49105 0.82794
II.BORG.BHZ.00 2023-09-08T22:17:52.15 10.0 negative automatic P 350 3844.8513 2.76997 0.824705
IU.ANTO.BHZ.00 2023-09-08T22:17:48.75 10.0 positive automatic P 64 3813.9378 1.60991 0.8116
IU.KIEV.BHZ.00 2023-09-08T22:17:42.27 10.0 negative automatic P 44 3774.5661 -1.62871 0.847093
GE.SLIT.BHZ. 2023-09-08T22:17:41.70 10.0 negative automatic P 29 3761.3793 -1.14074 0.811751
PL.SUW.BHZ. 2023-09-08T22:17:27.22 10.0 negative automatic P 35 3573.2232 -0.835071 0.844998
GE.TIRR.BHZ. 2023-09-08T22:17:24.79 10.0 negative automatic P 54 3517.8342 1.12886 0.894675
PL.KWP.BHZ. 2023-09-08T22:17:06.75 10.0 negative automatic P 42 3302.9604 0.116984 0.952381
GE.APE.BHZ. 2023-09-08T22:16:57.80 10.0 positive automatic P 69 3172.4133 1.57254 0.930233
HU.LTVH.BHZ. 2023-09-08T22:16:54.36 10.0 negative automatic P 46 3141.5997 0.700145 0.851064
DK.MUD.BHZ.00 2023-09-08T22:16:52.45 10.0 negative automatic P 21 3130.8216 -0.321885 0.952381
GE.RGN.BHZ. 2023-09-08T22:16:51.80 10.0 negative automatic P 27 3122.8518 -0.338914 0.909091
MN.BZS.BHZ. 2023-09-08T22:16:46.57 10.0 negative automatic P 49 3046.8723 0.510937 0.869565
GE.PSZ.BHZ. 2023-09-08T22:16:44.55 10.0 negative automatic P 44 3032.742 -0.484802 0.888889
GE.MORC.BHZ. 2023-09-08T22:16:40.80 10.0 negative automatic P 39 2991.9051 -0.884454 0.909091
PL.KSP.BHZ. 2023-09-08T22:16:40.24 10.0 negative automatic P 36 2989.896 -1.21795 0.952381
GE.RUE.BHZ. 2023-09-08T22:16:39.95 10.0 negative automatic P 31 2978.3742 -0.521408 0.952381
HT.LIT.HHZ. 2023-09-08T22:16:38.65 10.0 positive automatic P 61 2945.4405 0.764259 0.865801
HL.ITM.HHZ. 2023-09-08T22:16:31.34 10.0 positive automatic P 68 2854.6425 0.880699 0.784314
GE.HLG.BHZ. 2023-09-08T22:16:31.85 10.0 negative automatic P 22 2875.4328 -0.244659 0.930233
MN.DIVS.BHZ. 2023-09-08T22:16:31.97 10.0 negative automatic P 52 2865.0321 0.567138 0.91954
GE.FLT1.BHZ. 2023-09-08T22:16:28.60 10.0 negative automatic P 28 2847.7272 -1.23857 0.909091
HU.KOVH.BHZ. 2023-09-08T22:16:27.70 10.0 negative automatic P 46 2818.7118 0.196208 0.952381
MN.PDG.BHZ. 2023-09-08T22:16:22.02 10.0 negative automatic P 55 2747.4942 0.397986 0.833333
HL.KEK.HHZ. 2023-09-08T22:16:19.08 10.0 positive automatic P 61 2712.1074 0.327577 0.796813
II.ESK.BHZ.00 2023-09-08T22:16:19.02 10.0 negative automatic P 7 2723.8401 -0.697173 0.888889
GE.IBBN.BHZ. 2023-09-08T22:16:17.25 10.0 negative automatic P 24 2698.5876 -0.375501 0.952381
OE.ARSA.BHZ. 2023-09-08T22:16:17.62 10.0 negative automatic P 42 2712.9954 -1.26565 0.952381
GT.DBIC.BHZ.00 2023-09-08T22:16:17.38 10.0 positive automatic P 172 2731.2882 -2.93892 0.952381
MN.BLY.BHZ. 2023-09-08T22:16:16.02 10.0 negative automatic P 48 2688.7863 -0.816387 0.888889
OE.KBA.BHZ. 2023-09-08T22:16:04.42 10.0 negative automatic P 40 2566.7085 -2.04284 0.930233
IV.PTCC.BHZ. 2023-09-08T22:16:00.90 10.0 negative automatic P 41 2524.0845 -1.3331 0.869565
GE.MATE.BHZ. 2023-09-08T22:15:58.65 10.0 negative automatic P 58 2484.7128 0.221738 0.851064
GE.DSB.BHZ. 2023-09-08T22:15:56.55 10.0 negative automatic P 3 2468.5068 -0.275191 0.930233
GE.STU.BHZ. 2023-09-08T22:15:54.70 10.0 positive automatic P 32 2459.0607 -1.24063 0.952381
MN.CUC.BHZ. 2023-09-08T22:15:50.77 10.0 negative automatic P 59 2391.3618 1.31287 0.952381
GE.WLF.BHZ. 2023-09-08T22:15:49.80 10.0 negative automatic P 26 2394.7917 0.0709912 0.888889
II.BFO.BHZ.00 2023-09-08T22:15:47.47 10.0 negative automatic P 32 2379.8622 -0.873093 0.952381
OE.DAVA.BHZ. 2023-09-08T22:15:46.92 10.0 negative automatic P 36 2379.3072 -1.53531 0.8
II.SACV.BHZ.00 2023-09-08T22:15:46.02 10.0 positive automatic P 224 2361.414 -0.486427 0.941176
GE.VAL.BHZ. 2023-09-08T22:15:43.35 10.0 negative automatic P 357 2323.1412 0.624288 0.952381
MN.AQU.BHZ. 2023-09-08T22:15:41.92 10.0 negative automatic P 51 2299.3983 1.39226 0.888889
G.ECH.BHZ.00 2023-09-08T22:15:41.35 10.0 negative automatic P 30 2313.2844 -0.514251 0.930233
IV.SALO.BHZ. 2023-09-08T22:15:40.30 10.0 positive automatic P 40 2296.6344 0.0575204 0.909091
IV.MGAB.BHZ. 2023-09-08T22:15:34.00 10.0 negative automatic P 48 2234.5854 0.830169 0.909091
MN.WDD.BHZ. 2023-09-08T22:15:31.12 10.0 positive automatic P 70 2182.3488 2.17568 0.833333
MN.VLC.BHZ. 2023-09-08T22:15:30.57 10.0 negative automatic P 43 2191.0734 0.676378 0.8
IV.MONC.BHZ. 2023-09-08T22:15:22.68 10.0 negative automatic P 38 2102.7951 1.50449 0.909091
RD.LOR.BHZ. 2023-09-08T22:15:19.30 10.0 negative automatic P 27 2080.1622 0.360955 0.925926
PM.ROSA.BHZ. 2023-09-08T22:15:11.75 10.0 negative automatic P 301 1992.2058 2.12698 0.930233
RD.PGF.BHZ. 2023-09-08T22:15:09.84 10.0 positive automatic P 45 1997.3118 -0.484845 0.943396
RD.ROSF.BHZ. 2023-09-08T22:15:05.28 10.0 positive automatic P 11 1966.365 -1.45811 0.952381
G.SSB.BHZ.00 2023-09-08T22:15:03.15 10.0 negative automatic P 32 1935.6069 -0.226627 0.909091
RD.MFF.BHZ. 2023-09-08T22:14:53.50 10.0 positive automatic P 20 1864.8222 -1.81308 0.862069
MN.VSL.BHZ. 2023-09-08T22:14:53.82 10.0 positive automatic P 55 1858.1511 -0.748309 0.869565
II.CMLA.BHZ.00 2023-09-08T22:14:41.47 10.0 negative automatic P 300 1732.9098 1.37761 0.91954
RD.MTLF.BHZ. 2023-09-08T22:14:28.74 10.0 negative automatic P 31 1652.3016 -1.73184 0.892857
G.TAM.BHZ.00 2023-09-08T22:14:26.30 10.0 positive automatic P 120 1652.7234 -4.40329 0.888889
WM.MAHO.BHZ. 2023-09-08T22:14:11.40 10.0 negative automatic P 46 1504.8048 -0.888435 0.833333
GE.MTE.BHZ. 2023-09-08T22:13:13.70 10.0 negative automatic P 4 1040.181 -1.46864 0.952381
SS.COI.BHZ. 2023-09-08T22:13:10.77 10.0 negative automatic P 360 1016.1051 -1.3054 0.869565
PM.PESTR.BHZ. 2023-09-08T22:12:52.96 10.0 negative automatic P 5 870.3399 -1.15539 0.952381
LX.GGNV.BHZ. 2023-09-08T22:12:51.42 10.0 negative automatic P 356 853.5567 -0.551469 0.952381
PM.PMOZ.BHZ. 2023-09-08T22:12:50.32 10.0 positive automatic P 286 851.8806 -1.6139 0.97561
IU.MACI.BHZ.00 2023-09-08T22:12:46.85 10.0 negative automatic P 250 842.0238 -3.97856 0.952381
PM.PVAQ.BHZ. 2023-09-08T22:12:33.19 10.0 positive automatic P 5 707.5584 -0.754313 0.952381
LX.MORF.BHZ. 2023-09-08T22:12:31.24 10.0 negative automatic P 358 694.2162 -1.10722 0.909091
WM.SFS.BHZ. 2023-09-08T22:12:25.50 10.0 negative automatic P 18 633.6879 0.732189 0.930233
MN.RTC.BHZ. 2023-09-08T22:11:50.72 10.0 positive automatic P 23 356.0436 0.330093 0.47619
WM.AVE.BHZ. 2023-09-08T22:11:39.95 10.0 negative automatic P 20 265.6119 0.732659 0.97561
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