Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 3.6 on date 18-11-2018 and time 15:22:23 (Italy) in region Libya [Sea]

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

  • 18-11-2018 14:22:23 (UTC)
  • 18-11-2018 15:22:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 34.6240, 13.2940 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 2018-11-18
14:22:23		 34.6237 13.2945 10 2019-06-04
09:16:01		 Bollettino Sismico Italiano INGV 63185741
Reviewed
Rev100 		ML 3.7 2018-11-18
14:22:24		 34.648 13.2867 9 2018-11-18
14:58:02		 Sala Sismica INGV-Roma 63180621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-11-18 14:22:23 ± 0.19
Latitude 34.6237 ± 0.0099
Longitude 13.2945 ± 0.0055
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 63185741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1150
Semi-minor axis of confidence ellipse (meter) 540
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 6
Circular confidence region, given by single value of horizontal uncertainty (meter) 1150.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 290
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 1.04591
Epicentral distance of station farthest from the epicenter (degree) 3.69262
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:3.6

Field Value
Value 3.6
Uncertainty 0.3
Num. used stations 29
Type of magnitude ML
Reference to an origin 63185741
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-11-18 20:53:55

ML:3.7

Field Value
Value 3.7
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 63180621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-11-18 14:58:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RAFF.HHZ. 2018-11-18T14:23:40.10 1.0 undecidable manual S 18 303.8625 38 -0.88 12
IV.CROCE.HHZ. 2018-11-18T14:23:33.68 0.1 undecidable manual S 24 269.3304 38 0.15 98
IV.AIO.HHZ. 2018-11-18T14:23:22.57 0.1 undecidable manual P 24 409.8786 38 1.05 0
IV.MUCR.HHZ. 2018-11-18T14:23:21.83 0.1 undecidable manual P 20 404.7837 38 0.94 0
IV.MNO.SHZ. 2018-11-18T14:23:20.09 0.6 undecidable manual P 18 387.723 38 1.33 0
IV.PLLN.EHZ. 2018-11-18T14:23:19.99 0.1 undecidable manual P 11 381.3294 38 2.02 0
IV.CSLB.HHZ. 2018-11-18T14:23:18.14 0.1 undecidable manual P 10 373.9479 38 1.1 0
IV.GALF.HHZ. 2018-11-18T14:23:16.66 0.1 undecidable manual P 18 360.9609 38 1.23 0
IV.CRJA.HHZ. 2018-11-18T14:23:14.43 0.1 undecidable manual P 356 353.4795 38 -0.07 0
MN.WDD.HHZ. 2018-11-18T14:23:13.15 0.3 undecidable manual S 39 174.7917 50 0.08 75
IV.MMGO.HHZ. 2018-11-18T14:23:11.86 0.1 undecidable manual P 355 338.2059 38 -0.75 4
IV.SSY.HHZ. 2018-11-18T14:23:10.64 0.1 undecidable manual P 29 323.4318 38 -0.12 24
MN.CLTB.HHZ. 2018-11-18T14:23:10.78 0.1 undecidable manual P 359 327.8274 38 -0.52 15
IV.RAFF.HHZ. 2018-11-18T14:23:08.32 0.1 undecidable manual P 18 303.8625 38 0 62
IV.CROCE.HHZ. 2018-11-18T14:23:03.97 0.1 undecidable manual P 24 269.3304 38 -0.06 100
IV.LPDG.HHZ. 2018-11-18T14:22:57.31 0.1 undecidable manual S 329 116.0949 50 -0.11 99
MN.WDD.HHZ. 2018-11-18T14:22:52.15 0.1 undecidable manual P 39 174.7917 50 -0.06 100
IV.LPDG.HHZ. 2018-11-18T14:22:43.44 0.1 undecidable manual P 329 116.0949 50 0.27 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LPDG.HHE. ML:3.6 0.0035405280000000003 0.5632 AML other m 2018-11-18T14:23:12.58
IV.LPDG.HHN. ML:3.9 0.0064415505 0.5184 AML other m 2018-11-18T14:23:00.16
MN.WDD.HHE. ML:3.6 0.0016140560000000002 0.64 AML other m 2018-11-18T14:23:22.72
MN.WDD.HNE. ML:2.4 0.000090624305 0.9152 AML other m 2018-11-18T14:23:24.84
MN.WDD.HHN. ML:3.7 0.0018129135000000002 0.48 AML other m 2018-11-18T14:23:24.83
MN.WDD.HNN. ML:2.2 0.00006264997 0.6976 AML other m 2018-11-18T14:23:43.83
IV.CROCE.HHN. ML:3.5 0.0004568383 0.6976 AML other m 2018-11-18T14:24:08.68
IV.CROCE.HHE. ML:3.6 0.00066304855 0.8 AML other m 2018-11-18T14:23:56.08
IV.RAFF.HHE. ML:3.8 0.0007247882 0.6016 AML other m 2018-11-18T14:24:07.12
IV.RAFF.HHN. ML:3.7 0.0005764983500000001 1.024 AML other m 2018-11-18T14:23:56.59
IV.SSY.HHE. ML:4.2 0.0017959294999999999 0.6016 AML other m 2018-11-18T14:24:12.28
IV.SSY.HHN. ML:4.4 0.0025710345 0.3776 AML other m 2018-11-18T14:24:00.82
MN.CLTB.HHN. ML:3.8 0.00056212925 0.864 AML other m 2018-11-18T14:23:55.46
MN.CLTB.HHE. ML:3.6 0.00037453884999999996 0.5376 AML other m 2018-11-18T14:23:59.10
IV.MMGO.HHE. ML:2.8 0.000061085835 0.48 AML other m 2018-11-18T14:23:47.48
IV.CRJA.HHN. ML:3.2 0.0001205532 1.3184 AML other m 2018-11-18T14:23:55.92
IV.CRJA.HHE. ML:3.6 0.0003171427 1.4592 AML other m 2018-11-18T14:23:51.39
IV.GALF.HNE. ML:3.4 0.00018938885 0.8512 AML other m 2018-11-18T14:24:13.99
IV.GALF.HNN. ML:3.3 0.00016449265000000003 0.9408 AML other m 2018-11-18T14:24:12.29
IV.GALF.HHE. ML:3.7 0.00041989670000000003 0.6592 AML other m 2018-11-18T14:23:58.11
IV.GALF.HHN. ML:3.7 0.00040274575 0.704 AML other m 2018-11-18T14:24:02.33
IV.CSLB.HHN. ML:3.6 0.00025954604999999995 1.0624 AML other m 2018-11-18T14:24:01.13
IV.CSLB.HHE. ML:3.4 0.0001897663 0.6592 AML other m 2018-11-18T14:24:06.39
IV.PLLN.EHN. ML:4.2 0.00103827255 1.0048 AML other m 2018-11-18T14:24:07.80
IV.PLLN.EHE. ML:4.1 0.0008208833 0.64 AML other m 2018-11-18T14:24:10.19
IV.MNO.SHN. ML:0.0 0.0003471115 0.7552 AML other m 2018-11-18T14:24:07.75
IV.MNO.SHE. ML:0.0 0.00047087020000000004 1.1968 AML other m 2018-11-18T14:24:11.29
IV.MUCR.HHN. ML:3.8 0.00032355190000000003 0.8192 AML other m 2018-11-18T14:24:07.54
IV.MUCR.HHE. ML:3.6 0.00024725425 0.7808 AML other m 2018-11-18T14:24:11.41
IV.AIO.HHN. ML:3.4 0.00013928794999999998 0.5184 AML other m 2018-11-18T14:24:11.72
IV.AIO.HHE. ML:3.3 0.000115995215 0.64 AML other m 2018-11-18T14:24:22.63
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