Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 3.6 on date 19-02-2023 and time 22:29:16 (UTC) in region Libya [Sea]

A magnitude ML 3.6 earthquake occured in region: Libya [Sea], on

  • 19-02-2023 22:29:16 (UTC)
  • 19-02-2023 23:29:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 34.5780, 13.7640 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Bulletin
Rev1000 		ML 3.6 2023-02-19
22:29:16		 34.5777 13.7637 10 2024-03-01
17:18:17		 Bollettino Sismico Italiano INGV 122745941
Reviewed
Rev100 		ML 3.7 2023-02-19
22:29:15		 34.5018 13.739 10 2023-02-19
22:42:43		 Sala Sismica INGV-Roma 114602301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-19 22:29:16 ± 0.38
Latitude 34.5777 ± 0.0243
Longitude 13.7637 ± 0.0153
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 122745941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2700
Semi-minor axis of confidence ellipse (meter) 1390
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 8
Circular confidence region, given by single value of horizontal uncertainty (meter) 2700.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 288
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 1.32020
Epicentral distance of station farthest from the epicenter (degree) 5.24934
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 31
Magnitudes information

ML:3.6

Field Value
Value 3.6
Uncertainty 0.3
Num. used stations 70
Type of magnitude ML
Reference to an origin 122745941
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-11-03 17:39:38

ML:3.7

Field Value
Value 3.7
Uncertainty 0.3
Num. used stations 70
Type of magnitude ML
Reference to an origin 114602301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-19 22:42:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CET2.HHZ. 2023-02-19T22:30:35.59 0.3 undecidable manual P 19 582.6723 38 -0.26 17
IV.CAR1.HHZ. 2023-02-19T22:30:33.31 0.6 undecidable manual P 22 562.5147 38 -0.03 12
IV.SELL.HHZ. 2023-02-19T22:30:32.27 0.3 undecidable manual P 27 551.1372 38 0.33 18
IV.PLAC.HHZ. 2023-02-19T22:30:24.74 0.3 undecidable manual P 28 491.4414 38 0.24 19
IV.IFIL.HHZ. 2023-02-19T22:30:19.20 1.0 undecidable manual P 9 448.218 38 0.08 7
IV.MRCB.HHZ. 2023-02-19T22:30:18.08 0.3 undecidable manual P 23 433.8435 38 0.74 18
IV.MSRU.HHZ. 2023-02-19T22:30:18.01 0.3 undecidable manual P 20 437.6286 38 0.19 21
IV.SOI.EHZ. 2023-02-19T22:30:17.86 0.3 undecidable manual P 27 438.6276 38 -0.07 21
IV.LIBRI.HHZ. 2023-02-19T22:30:13.91 0.3 undecidable manual P 15 402.6969 38 0.44 21
IV.AIO.HHZ. 2023-02-19T22:30:13.26 0.3 undecidable manual P 19 398.8008 38 0.28 21
IV.SOLUN.HHZ. 2023-02-19T22:30:12.05 0.3 undecidable manual P 357 390.4092 38 0.11 22
IV.MSFR.HHZ. 2023-02-19T22:30:12.66 0.3 undecidable manual P 11 390.5091 38 0.71 19
IV.PLLN.EHZ. 2023-02-19T22:30:12.38 0.6 undecidable manual P 5 380.3304 38 1.7 8
IV.GIB.HHZ. 2023-02-19T22:30:11.48 0.3 undecidable manual P 3 379.3314 38 0.92 18
IV.CSLB.HHZ. 2023-02-19T22:30:10.60 0.3 undecidable manual P 4 373.6482 38 0.75 19
IV.MBFT.HHZ. 2023-02-19T22:30:10.45 0.3 undecidable manual P 349 380.6301 38 -0.26 22
IV.CORL.HHZ. 2023-02-19T22:30:09.76 0.6 undecidable manual P 354 370.2516 38 0.34 15
IV.MMGO.HHZ. 2023-02-19T22:30:05.88 0.3 undecidable manual P 349 349.2837 38 -0.94 18
IV.CMDO.HHZ. 2023-02-19T22:30:05.29 0.3 undecidable manual P 1 320.235 38 2.09 9
IV.SCIAC.HHZ. 2023-02-19T22:30:03.00 0.3 undecidable manual P 350 331.3128 38 -1.59 13
IV.CPTP.HHZ. 2023-02-19T22:30:03.99 0.6 undecidable manual P 6 315.9504 38 1.32 10
IV.HCRL.HHZ. 2023-02-19T22:30:03.32 0.3 undecidable manual P 20 321.1341 38 0.01 25
ML.MSDA.BHE. 2023-02-19T22:30:02.47 0.6 undecidable manual S 24 160.7169 50 0.32 45
IV.HLNI.HHZ. 2023-02-19T22:30:02.73 0.3 undecidable manual P 18 323.1321 38 -0.83 19
IV.LINA.HHE. 2023-02-19T22:30:02.79 0.3 undecidable manual S 331 165.1125 50 -0.53 62
IV.RAFF.HHZ. 2023-02-19T22:30:00.18 0.3 undecidable manual P 10 298.2792 38 -0.29 24
IV.HVZN.HHZ. 2023-02-19T22:30:00.57 0.3 undecidable manual P 16 300.9765 38 -0.23 24
IV.LPDG.HHE. 2023-02-19T22:29:59.60 0.6 undecidable manual S 316 146.5422 50 1.23 33
IV.CLTA.HHZ. 2023-02-19T22:29:59.01 0.3 undecidable manual P 4 286.8018 38 -0.03 29
IV.ACATE.EHZ. 2023-02-19T22:29:58.18 0.3 undecidable manual P 14 279.4092 38 0.06 32
IV.HAVL.HHZ. 2023-02-19T22:29:58.89 0.3 undecidable manual P 24 291.1863 38 -0.7 23
IV.LINA.HHE. 2023-02-19T22:29:43.26 0.3 undecidable manual P 331 165.1125 50 -0.3 66
ML.MSDA.BHE. 2023-02-19T22:29:42.41 0.1 undecidable manual P 24 160.7169 50 -0.47 87
IV.LPDG.HHE. 2023-02-19T22:29:40.61 0.1 undecidable manual P 316 146.5422 50 -0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSRU.HHE. ML:3.9 0.000376 0.42 AML other m 2023-02-19T22:30:25.45
IV.SOI.EHN. ML:3.5 0.00015099999999999998 0.46 AML other m 2023-02-19T22:30:26.52
IV.MRCB.HHN. ML:3.6 0.00018099999999999998 0.46 AML other m 2023-02-19T22:30:27.56
IV.PLAC.HHN. ML:3.8 0.0001735 0.46 AML other m 2023-02-19T22:30:29.59
IV.PLAC.HNN. ML:3.8 0.0001895 0.42 AML other m 2023-02-19T22:30:29.61
IV.PLAC.HHE. ML:3.8 0.00017449999999999999 1.1 AML other m 2023-02-19T22:30:29.23
IV.PLAC.HNE. ML:3.7 0.00014600000000000003 0.38 AML other m 2023-02-19T22:30:30.24
IV.SELL.HNE. ML:4.0 0.0001865 0.54 AML other m 2023-02-19T22:30:48.18
IV.ACATE.HNN. ML:3.9 0.00128 0.76 AML other m 2023-02-19T22:30:48.20
IV.CET2.HHN. ML:4.0 0.0001725 0.62 AML other m 2023-02-19T22:30:48.35
IV.SELL.HNN. ML:3.9 0.00016599999999999997 0.54 AML other m 2023-02-19T22:30:48.71
IV.SELL.HHN. ML:3.3 0.000046649999999999996 1.16 AML other m 2023-02-19T22:30:49.25
IV.SELL.HHE. ML:3.5 0.00005795 1.44 AML other m 2023-02-19T22:30:50.21
IV.ACATE.HNE. ML:4.1 0.00196 0.88 AML other m 2023-02-19T22:30:51.80
IV.ACATE.EHE. ML:4.1 0.00181 0.88 AML other m 2023-02-19T22:30:51.36
IV.RAFF.HHN. ML:3.8 0.000764 0.6 AML other m 2023-02-19T22:30:52.46
IV.MMGO.HHE. ML:3.1 0.0001014 1.46 AML other m 2023-02-19T22:30:53.11
IV.MMGO.HNE. ML:3.1 0.00010735000000000001 1.38 AML other m 2023-02-19T22:30:54.10
IV.ACATE.EHN. ML:3.9 0.00109 0.9 AML other m 2023-02-19T22:30:56.60
IV.HLNI.HHN. ML:3.7 0.0005905 0.66 AML other m 2023-02-19T22:30:57.90
IV.HVZN.HNE. ML:4.1 0.00156 1.2 AML other m 2023-02-19T22:30:58.39
IV.AIO.HHN. ML:3.5 0.00017199999999999998 0.5 AML other m 2023-02-19T22:30:59.00
IV.SCIAC.HHE. ML:3.4 0.00023349999999999998 0.66 AML other m 2023-02-19T22:30:59.55
IV.MSFR.HHN. ML:3.4 0.00014150000000000002 1.1 AML other m 2023-02-19T22:30:59.67
IV.SCIAC.HNN. ML:3.6 0.00037150000000000003 1.48 AML other m 2023-02-19T22:31:00.76
IV.SCIAC.HHN. ML:3.6 0.000364 1.48 AML other m 2023-02-19T22:31:00.77
IV.MBFT.HHE. ML:3.3 0.0001445 1.04 AML other m 2023-02-19T22:31:00.95
IV.CLTA.HHN. ML:3.4 0.00031 0.96 AML other m 2023-02-19T22:31:01.50
IV.MBFT.HHN. ML:3.2 0.0001114 0.56 AML other m 2023-02-19T22:31:01.52
IV.LIBRI.HNE. ML:3.6 0.0002115 0.6 AML other m 2023-02-19T22:31:01.93
IV.HVZN.HNN. ML:4.1 0.0016899999999999999 0.6 AML other m 2023-02-19T22:31:02.38
IV.RAFF.HHE. ML:4.0 0.00125 0.6 AML other m 2023-02-19T22:31:03.63
IV.GIB.HHE. ML:4.0 0.0006155 0.74 AML other m 2023-02-19T22:31:04.73
IV.SCIAC.HNE. ML:3.4 0.0002475 0.52 AML other m 2023-02-19T22:31:05.77
IV.MSRU.HHN. ML:3.9 0.0003655 0.68 AML other m 2023-02-19T22:31:06.41
IV.CMDO.HHE. ML:3.5 0.0003095 0.82 AML other m 2023-02-19T22:31:06.86
IV.CLTA.HHE. ML:3.4 0.000327 1.24 AML other m 2023-02-19T22:31:06.09
IV.CSLB.HHE. ML:3.4 0.0001665 0.52 AML other m 2023-02-19T22:31:06.72
IV.CSLB.HNE. ML:3.4 0.00016700000000000002 0.54 AML other m 2023-02-19T22:31:06.72
IV.CORL.HNE. ML:3.6 0.00027949999999999996 0.92 AML other m 2023-02-19T22:31:08.20
IV.PLLN.EHN. ML:4.2 0.001085 1.38 AML other m 2023-02-19T22:31:09.81
IV.HCRL.HHN. ML:3.7 0.00048550000000000004 0.74 AML other m 2023-02-19T22:31:09.52
IV.CMDO.HHN. ML:3.4 0.00027949999999999996 0.84 AML other m 2023-02-19T22:31:09.52
IV.HLNI.HHE. ML:3.8 0.000611 1 AML other m 2023-02-19T22:31:10.17
IV.SOLUN.HHE. ML:3.7 0.0002925 1.22 AML other m 2023-02-19T22:31:10.20
IV.SOLUN.HHN. ML:3.7 0.00027800000000000004 0.84 AML other m 2023-02-19T22:31:10.31
IV.MSFR.HHE. ML:3.2 0.00008895000000000001 0.5 AML other m 2023-02-19T22:31:10.48
IV.HCRL.HHE. ML:3.7 0.0005795 0.7 AML other m 2023-02-19T22:31:10.14
IV.GIB.HHN. ML:4.0 0.0006525 1.38 AML other m 2023-02-19T22:31:10.99
IV.CSLB.HNN. ML:3.4 0.000188 0.68 AML other m 2023-02-19T22:31:12.13
IV.CSLB.HHN. ML:3.4 0.0001885 0.64 AML other m 2023-02-19T22:31:14.11
IV.MMGO.HNN. ML:3.2 0.000131 0.98 AML other m 2023-02-19T22:31:14.70
IV.MMGO.HHN. ML:3.2 0.00012355 1.02 AML other m 2023-02-19T22:31:14.72
IV.LIBRI.HHN. ML:3.5 0.0001645 1.42 AML other m 2023-02-19T22:31:14.77
IV.LIBRI.HNN. ML:3.6 0.0002445 0.8 AML other m 2023-02-19T22:31:16.11
IV.CORL.HHN. ML:3.5 0.000235 0.6 AML other m 2023-02-19T22:31:17.49
IV.CORL.HHE. ML:3.6 0.00028 0.42 AML other m 2023-02-19T22:31:19.54
IV.MRCB.HHE. ML:3.7 0.000226 1.38 AML other m 2023-02-19T22:31:20.81
IV.CORL.HNN. ML:3.5 0.0002215 0.78 AML other m 2023-02-19T22:31:21.56
IV.PLLN.EHE. ML:4.1 0.0009260000000000001 1.14 AML other m 2023-02-19T22:31:26.61
IV.LIBRI.HHE. ML:3.5 0.0001645 0.56 AML other m 2023-02-19T22:31:26.87
IV.IFIL.HHE. ML:4.3 0.0008129999999999999 1.28 AML other m 2023-02-19T22:31:29.26
IV.IFIL.HHN. ML:4.0 0.000389 0.56 AML other m 2023-02-19T22:31:30.29
IV.AIO.HHE. ML:3.5 0.000177 0.7 AML other m 2023-02-19T22:31:31.63
IV.SOI.EHE. ML:3.6 0.000179 0.72 AML other m 2023-02-19T22:31:35.41
IV.CET2.HHE. ML:3.7 0.00008724999999999999 0.78 AML other m 2023-02-19T22:31:37.32
IV.CAR1.HHE. ML:3.7 0.000103 0.5 AML other m 2023-02-19T22:31:39.07
IV.CAR1.HNE. ML:3.8 0.000108 0.72 AML other m 2023-02-19T22:31:53.16
IV.CAR1.HNN. ML:3.9 0.00014330000000000001 1.6 AML other m 2023-02-19T22:32:02.97
IV.CAR1.HHN. ML:3.8 0.0001115 0.62 AML other m 2023-02-19T22:32:04.01
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