Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 3.8 on date 01-02-2023 and time 04:37:44 (UTC) in region Malta [Sea]

A magnitude ML 3.8 earthquake occured in region: Malta [Sea], on

  • 01-02-2023 04:37:44 (UTC)
  • 01-02-2023 05:37:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 34.8530, 14.2720 at 20 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 3.8 2023-02-01
04:37:44		 34.8533 14.2718 21 2024-03-01
17:18:09		 Bollettino Sismico Italiano INGV 117481101
Reviewed
Rev100 		ML 3.7 2023-02-01
04:37:43		 34.8495 14.2788 9 2023-02-01
05:07:05		 Sala Sismica INGV-Roma 113948381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-01 04:37:44 ± 0.39
Latitude 34.8533 ± 0.0162
Longitude 14.2718 ± 0.0625
Depth (km) 21 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 117481101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 5712
Semi-minor axis of confidence ellipse (meter) 1665
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 272
Circular confidence region, given by single value of horizontal uncertainty (meter) 5710.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 324
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 40
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 1.06120
Epicentral distance of station farthest from the epicenter (degree) 4.66119
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 32
Magnitudes information

ML:3.8

Field Value
Value 3.8
Uncertainty 0.2
Num. used stations 58
Type of magnitude ML
Reference to an origin 117481101
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-08-22 15:26:50

ML:3.7

Field Value
Value 3.7
Uncertainty 0.2
Num. used stations 60
Type of magnitude ML
Reference to an origin 113948381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-01 05:07:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAR1.HHZ. 2023-02-01T04:38:54.25 0.3 undecidable manual P 19 517.3932 54 0.08 25
IV.HLNI.HHZ. 2023-02-01T04:38:53.34 0.6 undecidable manual S 11 282.0066 54 -1.44 15
IV.HVZN.HHZ. 2023-02-01T04:38:50.49 0.6 undecidable manual S 9 260.9388 54 0.24 31
IV.ACATE.HNE. 2023-02-01T04:38:46.48 0.6 undecidable manual S 5 241.6803 54 0.39 35
IV.PLAC.HHZ. 2023-02-01T04:38:45.43 0.3 undecidable manual P 25 443.0232 54 0.51 25
IV.HMDC.HNN. 2023-02-01T04:38:45.96 0.6 undecidable manual S 11 238.0839 54 0.65 33
IV.HVIT.HHZ. 2023-02-01T04:38:44.51 0.6 undecidable manual S 5 238.3836 54 -0.87 30
IV.CROCE.HHZ. 2023-02-01T04:38:41.03 0.6 undecidable manual S 6 220.8123 54 -0.57 38
IV.IVPL.HHZ. 2023-02-01T04:38:39.40 0.3 undecidable manual P 9 395.9037 54 0.36 27
IV.MSRU.HHZ. 2023-02-01T04:38:39.45 0.3 undecidable manual P 16 394.0056 54 0.63 25
IV.MUCR.HHZ. 2023-02-01T04:38:35.04 0.3 undecidable manual P 8 357.8751 54 0.72 25
IV.PLLN.EHZ. 2023-02-01T04:38:34.78 0.3 undecidable manual P 358 348.3846 54 1.64 16
IV.GIB.HHZ. 2023-02-01T04:38:34.20 0.3 undecidable manual P 356 348.6843 54 1.03 22
IV.MSFR.HHZ. 2023-02-01T04:38:34.97 0.3 undecidable manual P 5 353.979 54 1.14 21
IV.EPZF.HHZ. 2023-02-01T04:38:33.06 0.3 undecidable manual P 9 333.6105 54 1.76 15
IV.CSLB.HHZ. 2023-02-01T04:38:32.76 0.3 undecidable manual P 357 342.7014 54 0.34 29
IV.GALF.HHZ. 2023-02-01T04:38:30.09 1.0 undecidable manual P 5 318.0372 54 0.73 9
IV.ESML.HHZ. 2023-02-01T04:38:28.82 0.6 undecidable manual P 10 311.4549 54 0.28 20
IV.CMDO.HHZ. 2023-02-01T04:38:27.87 0.3 undecidable manual P 352 292.3851 54 1.71 17
IV.EMSA.HHZ. 2023-02-01T04:38:27.59 0.6 undecidable manual P 11 299.478 54 0.54 19
IV.AGST.EHZ. 2023-02-01T04:38:25.17 0.6 undecidable manual P 18 280.0086 54 0.55 24
IV.HLNI.HHZ. 2023-02-01T04:38:24.39 0.3 undecidable manual P 11 282.0066 54 -0.48 36
IV.HAGA.HHZ. 2023-02-01T04:38:24.76 0.3 undecidable manual P 16 281.1075 54 0 40
IV.HCRL.HHZ. 2023-02-01T04:38:24.36 0.3 undecidable manual P 14 278.0106 54 -0.02 41
IV.FAVA.HHE. 2023-02-01T04:38:24.41 0.6 undecidable manual P 349 280.0086 54 -0.22 26
IV.HSRS.HNN. 2023-02-01T04:38:22.75 0.3 undecidable manual P 19 262.6371 54 0.28 45
IV.RAFF.HHZ. 2023-02-01T04:38:22.51 0.3 undecidable manual P 2 262.9368 54 0.01 48
1J.FX01.HHN. 2023-02-01T04:38:22.06 1.0 undecidable manual P 20 261.3384 54 -0.24 15
IV.SSY.HHZ. 2023-02-01T04:38:22.82 0.3 undecidable manual P 15 265.5342 54 0 46
ML.XLND.BHE. 2023-02-01T04:38:21.49 0.3 undecidable manual S 358 130.869 95 -0.01 100
IV.HVZN.HHZ. 2023-02-01T04:38:21.65 0.3 undecidable manual P 9 260.9388 54 -0.6 42
IV.CLTA.HHN. 2023-02-01T04:38:21.96 0.6 undecidable manual P 354 257.1537 54 0.18 32
IV.ACATE.HNE. 2023-02-01T04:38:19.23 0.3 undecidable manual P 5 241.6803 54 -0.62 49
IV.HMDC.HNN. 2023-02-01T04:38:19.04 0.6 undecidable manual P 11 238.0839 54 -0.36 36
IV.HAVL.HHZ. 2023-02-01T04:38:19.98 0.3 undecidable manual P 18 245.865 54 -0.39 51
ML.MSDA.BHE. 2023-02-01T04:38:18.37 0.3 undecidable manual S 9 117.7932 95 0.34 96
IV.HVIT.HHZ. 2023-02-01T04:38:18.71 0.3 undecidable manual P 5 238.3836 54 -0.73 48
IV.CROCE.HHZ. 2023-02-01T04:38:16.55 0.3 undecidable manual P 6 220.8123 54 -0.71 54
ML.XLND.BHE. 2023-02-01T04:38:05.02 0.3 undecidable manual P 358 130.869 95 -0.63 85
ML.MSDA.BHE. 2023-02-01T04:38:03.53 0.3 undecidable manual P 9 117.7932 95 -0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSY.HHN. ML:4.4 0.00452 0.4 AML other m 2023-02-01T04:38:33.68
IV.HVZN.HHN. ML:3.7 0.000825 1.34 AML other m 2023-02-01T04:38:34.09
IV.HVZN.HNN. ML:3.6 0.0007795 0.4 AML other m 2023-02-01T04:38:36.85
IV.SSY.HNE. ML:3.9 0.001295 0.88 AML other m 2023-02-01T04:38:38.03
IV.HCRL.HHN. ML:3.6 0.0006725 1.64 AML other m 2023-02-01T04:38:38.07
IV.HVZN.HHE. ML:3.8 0.00095229765 0.5792 AML other m 2023-02-01T04:38:49.79
IV.HVZN.HNE. ML:3.7 0.0008779117000000001 0.5888 AML other m 2023-02-01T04:38:49.79
IV.RAFF.HHN. ML:3.6 0.0006322674 0.6624 AML other m 2023-02-01T04:38:50.73
IV.RAFF.HHE. ML:3.7 0.0008621955 1.1424 AML other m 2023-02-01T04:38:52.81
IV.HAVL.HHE. ML:3.9 0.001618539 0.3808 AML other m 2023-02-01T04:38:56.26
IV.HAVL.HHN. ML:3.8 0.00126746885 0.7392 AML other m 2023-02-01T04:38:56.23
IV.SSY.HHE. ML:4.3 0.003308983 0.48 AML other m 2023-02-01T04:38:59.44
IV.SSY.HNN. ML:4.0 0.00150145135 0.3904 AML other m 2023-02-01T04:38:59.45
IV.HLNI.HHE. ML:3.8 0.0007987855 0.8384 AML other m 2023-02-01T04:39:00.22
IV.GALF.HNE. ML:3.2 0.00016231545 0.88 AML other m 2023-02-01T04:39:01.55
IV.HCRL.HHE. ML:3.6 0.0006309375500000001 0.4832 AML other m 2023-02-01T04:39:02.42
IV.ESML.HHN. ML:3.7 0.0005585 1.58 AML other m 2023-02-01T04:39:03.00
IV.HLNI.HHN. ML:3.6 0.0006125470500000001 0.4768 AML other m 2023-02-01T04:39:04.28
IV.EPZF.HHN. ML:3.9 0.00084 0.92 AML other m 2023-02-01T04:39:07.11
IV.AGST.EHE. ML:4.0 0.0015048965 0.6208 AML other m 2023-02-01T04:39:08.02
IV.AGST.EHN. ML:4.1 0.00175914 0.5984 AML other m 2023-02-01T04:39:08.38
IV.ESML.HNN. ML:3.6 0.000518704 0.3104 AML other m 2023-02-01T04:39:09.88
IV.CMDO.HNN. ML:3.6 0.0005245537999999999 1.2896 AML other m 2023-02-01T04:39:12.45
IV.CMDO.HHN. ML:3.6 0.0005331614 1.28 AML other m 2023-02-01T04:39:12.45
IV.ESML.HNE. ML:3.7 0.0006183332500000001 0.4192 AML other m 2023-02-01T04:39:14.61
IV.ESML.HHE. ML:3.8 0.0006922263 0.6016 AML other m 2023-02-01T04:39:14.56
IV.GALF.HHN. ML:4.3 0.0022633165 0.6016 AML other m 2023-02-01T04:39:16.66
IV.GALF.HNN. ML:3.3 0.00023082474999999998 0.5504 AML other m 2023-02-01T04:39:16.96
IV.GALF.HHE. ML:4.0 0.0010699984 0.7808 AML other m 2023-02-01T04:39:16.76
IV.GIB.HHE. ML:4.3 0.001635 1.02 AML other m 2023-02-01T04:39:17.34
IV.CSLB.HHN. ML:3.5 0.0002975675 1.04 AML other m 2023-02-01T04:39:18.21
IV.CSLB.HNN. ML:3.5 0.00030103959999999995 1.0272 AML other m 2023-02-01T04:39:18.21
IV.CMDO.HHE. ML:3.7 0.00065011675 1.6992 AML other m 2023-02-01T04:39:17.94
IV.CMDO.HNE. ML:3.6 0.00058169195 0.9888 AML other m 2023-02-01T04:39:18.80
IV.EPZF.HHE. ML:3.9 0.00077024635 0.5216 AML other m 2023-02-01T04:39:21.28
IV.CSLB.HNE. ML:3.8 0.0005112083 1.0496 AML other m 2023-02-01T04:39:24.48
IV.CSLB.HHE. ML:3.8 0.0005048774000000001 1.0208 AML other m 2023-02-01T04:39:24.47
IV.PLLN.EHE. ML:4.6 0.0030269244999999996 0.8192 AML other m 2023-02-01T04:39:28.49
IV.IVPL.HNN. ML:4.0 0.000608 0.7 AML other m 2023-02-01T04:39:30.88
IV.IVPL.HHN. ML:4.0 0.000587 0.7 AML other m 2023-02-01T04:39:30.89
IV.MUCR.HHN. ML:3.7 0.0004320859 0.6592 AML other m 2023-02-01T04:39:30.65
IV.MSFR.HHN. ML:3.7 0.00037053475000000004 1.9616 AML other m 2023-02-01T04:39:32.22
IV.GIB.HHN. ML:4.2 0.001342317 0.8224 AML other m 2023-02-01T04:39:31.70
IV.PLLN.EHN. ML:4.4 0.002301793 0.88 AML other m 2023-02-01T04:39:31.94
IV.MSFR.HHE. ML:3.7 0.00037561115000000003 1.3024 AML other m 2023-02-01T04:39:31.14
IV.IVPL.HNE. ML:3.9 0.00049421365 0.4512 AML other m 2023-02-01T04:39:32.94
IV.MUCR.HHE. ML:3.8 0.0005040252 0.6016 AML other m 2023-02-01T04:39:32.85
IV.MSRU.HHE. ML:4.2 0.00095640675 1.0784 AML other m 2023-02-01T04:39:36.89
IV.MSRU.HHN. ML:4.2 0.0008622919 1.0592 AML other m 2023-02-01T04:39:37.24
IV.PLAC.HHE. ML:3.6 0.00016299999999999998 0.66 AML other m 2023-02-01T04:39:39.70
IV.IVPL.HHE. ML:3.9 0.0005323396500000001 0.8192 AML other m 2023-02-01T04:39:43.28
IV.PLAC.HHN. ML:3.6 0.000153 1.2 AML other m 2023-02-01T04:39:49.96
IV.PLAC.HNN. ML:3.7 0.0001945 1.24 AML other m 2023-02-01T04:39:51.94
IV.PLAC.HNE. ML:3.6 0.0001820774 1.632 AML other m 2023-02-01T04:39:53.27
IV.CAR1.HHE. ML:4.0 0.00023241145 0.64 AML other m 2023-02-01T04:40:12.72
IV.CAR1.HNE. ML:4.0 0.00025388495 0.6688 AML other m 2023-02-01T04:40:12.72
IV.CAR1.HNN. ML:4.0 0.0002716769 0.7712 AML other m 2023-02-01T04:40:13.91
IV.CAR1.HHN. ML:3.9 0.00021655675 0.6816 AML other m 2023-02-01T04:40:14.00
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