Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 3.5 on date 25-01-2023 and time 04:06:30 (UTC) in region Malta [Sea]

A magnitude ML 3.5 earthquake occured in region: Malta [Sea], on

  • 25-01-2023 04:06:30 (UTC)
  • 25-01-2023 05:06:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 34.9310, 14.0350 at 20 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 		ML 3.5 2023-01-25
04:06:30		 34.9308 14.0347 20 2023-01-25
04:57:47		 Sala Sismica INGV-Roma 113771371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-25 04:06:30 ± 0.34
Latitude 34.9308 ± 0.0207
Longitude 14.0347 ± 0.0395
Depth (km) 20 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 113771371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3628
Semi-minor axis of confidence ellipse (meter) 2183
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 103
Circular confidence region, given by single value of horizontal uncertainty (meter) 3630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 320
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 2.81128
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 12
Magnitude information

ML:3.5

Field Value
Value 3.5
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 113771371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-25 04:57:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.INTR.HNZ. 2023-01-25T04:09:09.91 3.0 undecidable manual Sn -9.99 0
IV.FRON.EHZ. 2023-01-25T04:08:38.79 3.0 positive manual Pn 1.64 0
IV.CMPR.HHZ. 2023-01-25T04:08:33.22 3.0 undecidable manual Sn -9.99 0
IV.MTMR.HNZ. 2023-01-25T04:08:02.25 3.0 positive manual Pn 1.29 0
IX.COL3.HHZ.02 2023-01-25T04:07:55.07 3.0 undecidable manual Pn -3.33 0
1J.FX14.HHZ.00 2023-01-25T04:07:53.54 3.0 undecidable manual Sg -0.36 0
IV.MGR.HHZ. 2023-01-25T04:07:47.96 3.0 undecidable manual Pn -3.64 0
IV.SCIAC.HHZ. 2023-01-25T04:07:44.41 0.3 undecidable manual S 344 2.6917 54 -0.8 20
IV.CAR1.HHZ. 2023-01-25T04:07:41.93 3.0 negative manual Pn -0.85 0
IV.HCRL.HHZ. 2023-01-25T04:07:40.82 0.3 undecidable manual S 19 2.4848 54 0.55 28
IV.AGST.EHZ. 2023-01-25T04:07:40.45 0.6 undecidable manual S 22 2.5154 54 -0.55 18
IV.HLNI.HHZ. 2023-01-25T04:07:40.68 1.0 undecidable manual S 15 2.5091 54 -0.16 10
IV.RAFF.HHZ. 2023-01-25T04:07:36.47 0.6 undecidable manual S 6 2.3059 54 0.5 23
IV.HAVL.HHZ. 2023-01-25T04:07:33.23 0.6 undecidable manual S 23 2.2105 54 -0.46 25
IV.PLAC.HHZ. 2023-01-25T04:07:32.55 3.0 negative manual Pn -2.17 0
IV.CROCE.HHZ. 2023-01-25T04:07:27.44 0.3 undecidable manual S 12 1.9434 54 0.14 50
IV.MSRU.HHZ. 2023-01-25T04:07:27.03 3.0 positive manual Pn -0.24 0
IV.MPNC.HHZ. 2023-01-25T04:07:24.64 3.0 undecidable manual Pn -0.46 0
IV.AIO.HHZ. 2023-01-25T04:07:22.36 3.0 positive manual Pn -0.02 0
IV.PLLN.EHZ. 2023-01-25T04:07:21.16 3.0 positive manual Pn 0.89 0
IV.MBFT.HHZ. 2023-01-25T04:07:21.51 3.0 negative manual Pn -1.33 0
IV.SOLUN.HHZ. 2023-01-25T04:07:21.43 3.0 positive manual Pn -1.06 0
IV.MUCR.HHZ. 2023-01-25T04:07:21.91 3.0 positive manual Pn -0.08 0
IV.GIB.HHZ. 2023-01-25T04:07:20.52 3.0 negative manual Pn 0.24 0
IV.CIMI.HHZ. 2023-01-25T04:07:19.26 3.0 positive manual Pn -0.33 0
IV.CSLB.HHZ. 2023-01-25T04:07:19.89 3.0 positive manual Pn 0.35 0
IV.EPZF.HHZ. 2023-01-25T04:07:18.58 3.0 negative manual Pn -0.48 0
IV.GALF.HHZ. 2023-01-25T04:07:17.15 0.3 undecidable manual P 9 2.8113 54 1.75 11
IV.GALF.HHZ. 2023-01-25T04:07:15.88 1.0 undecidable manual S 9 2.8113 54 -9.99 0
IV.SCIAC.HHZ. 2023-01-25T04:07:13.40 0.3 undecidable manual P 344 2.6917 54 -0.35 23
IV.HCRL.HHZ. 2023-01-25T04:07:11.05 0.3 undecidable manual P 19 2.4848 54 0.15 31
IV.AGST.EHZ. 2023-01-25T04:07:11.74 0.3 undecidable manual P 22 2.5154 54 0.42 28
IV.HLNI.HHZ. 2023-01-25T04:07:10.99 0.3 undecidable manual P 15 2.5091 54 -0.24 29
IV.SSY.HHZ. 2023-01-25T04:07:09.56 0.3 undecidable manual P 20 2.3787 54 0.13 35
IV.RAFF.HHZ. 2023-01-25T04:07:08.90 0.3 undecidable manual P 6 2.3059 54 0.48 35
IV.HAVL.HHZ. 2023-01-25T04:07:06.64 0.1 undecidable manual P 23 2.2105 54 -0.46 50
ML.XLND.BHE. 2023-01-25T04:07:06.26 0.6 undecidable manual S 8 1.1116 95 0 50
ML.MSDA.BHE. 2023-01-25T04:07:04.03 1.0 undecidable manual S 21 1.0369 95 -0.03 26
IV.HPAC.HHZ. 2023-01-25T04:07:03.29 0.1 undecidable manual P 24 1.9533 54 -0.27 64
IV.CROCE.HHZ. 2023-01-25T04:07:03.46 0.1 undecidable manual P 12 1.9434 54 0.05 68
ML.XLND.BHE. 2023-01-25T04:06:51.43 0.1 undecidable manual P 8 1.1116 95 0.17 98
ML.MSDA.BHE. 2023-01-25T04:06:49.81 0.1 undecidable manual P 21 1.0369 95 -0.18 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SOLUN.HHN. ML:3.2 0.00013005455 1.28 AML other m 2023-01-25T04:08:03.30
IV.MPNC.HHE. ML:3.8 0.000389 0.5 AML other m 2023-01-25T04:07:37.37
IV.CROCE.HHE. ML:3.4 0.0007170000000000001 0.6 AML other m 2023-01-25T04:07:38.36
IV.CROCE.HNE. ML:3.6 0.000907 0.6 AML other m 2023-01-25T04:07:38.36
IV.CROCE.HHN. ML:3.4 0.000654 1.18 AML other m 2023-01-25T04:07:40.59
IV.CROCE.HNN. ML:3.5 0.0008115 1.2 AML other m 2023-01-25T04:07:40.60
IV.HPAC.HHE. ML:4.0 0.0023200000000000004 1.46 AML other m 2023-01-25T04:07:42.09
IV.HPAC.HHN. ML:4.0 0.0023799999999999997 0.42 AML other m 2023-01-25T04:07:44.33
IV.HLNI.HHE. ML:3.5 0.0004785 0.38 AML other m 2023-01-25T04:07:44.49
IV.HAVL.HHE. ML:0.0 0.00079 1.26 AML other m 2023-01-25T04:07:49.64
IV.HAVL.HHN. ML:0.0 0.0010345 0.68 AML other m 2023-01-25T04:07:50.40
IV.SSY.HNE. ML:3.9 0.00131 0.6 AML other m 2023-01-25T04:07:51.45
IV.RAFF.HHE. ML:3.6 0.0006965 1.26 AML other m 2023-01-25T04:07:53.02
IV.RAFF.HHN. ML:3.4 0.000482 0.58 AML other m 2023-01-25T04:07:53.97
IV.HLNI.HHN. ML:3.6 0.0005565 0.58 AML other m 2023-01-25T04:07:54.41
IV.HCRL.HHE. ML:3.6 0.000607 0.62 AML other m 2023-01-25T04:07:55.41
IV.SSY.HHE. ML:4.3 0.003125 0.82 AML other m 2023-01-25T04:07:55.53
IV.SSY.HNN. ML:3.9 0.00128 0.52 AML other m 2023-01-25T04:07:56.85
IV.HCRL.HHN. ML:3.5 0.0005155 0.32 AML other m 2023-01-25T04:07:57.37
IV.CAR1.HHE. ML:3.5 0.0000896 0.56 AML other m 2023-01-25T04:07:58.10
IV.AGST.EHN. ML:3.7 0.0007995000000000001 1.04 AML other m 2023-01-25T04:07:58.20
IV.AGST.EHE. ML:3.6 0.0006975 0.42 AML other m 2023-01-25T04:07:58.62
IV.SSY.HHN. ML:4.3 0.0036950000000000004 0.54 AML other m 2023-01-25T04:07:59.61
IV.CIMI.HNE. ML:3.3 0.000208 0.88 AML other m 2023-01-25T04:08:00.90
IV.CIMI.HHE. ML:3.2 0.00016 0.86 AML other m 2023-01-25T04:08:00.92
IV.SOLUN.HHE. ML:3.4 0.00020150000000000002 1.02 AML other m 2023-01-25T04:08:02.16
IV.GIB.HHN. ML:3.5 0.00028000000000000003 0.44 AML other m 2023-01-25T04:08:02.81
IV.PLLN.EHN. ML:3.7 0.00047400000000000003 0.54 AML other m 2023-01-25T04:08:03.43
IV.GIB.HHE. ML:3.6 0.000367 1.06 AML other m 2023-01-25T04:08:03.72
IV.GALF.HHE. ML:3.6 0.00044950000000000003 0.42 AML other m 2023-01-25T04:08:07.65
IV.MSRU.HHE. ML:3.6 0.0002475 0.92 AML other m 2023-01-25T04:08:09.85
IV.EPZF.HHE. ML:3.5 0.0003055 1.14 AML other m 2023-01-25T04:08:10.30
IV.GALF.HHN. ML:3.6 0.0005445 0.78 AML other m 2023-01-25T04:08:10.06
IV.EPZF.HHN. ML:3.7 0.00045099999999999996 0.88 AML other m 2023-01-25T04:08:11.24
IV.MSRU.HHN. ML:3.5 0.00019 0.48 AML other m 2023-01-25T04:08:11.69
IV.CSLB.HHN. ML:2.9 0.00008085 1.32 AML other m 2023-01-25T04:08:14.85
IV.CIMI.HHN. ML:3.3 0.0002065 1.2 AML other m 2023-01-25T04:08:16.73
IV.CIMI.HNN. ML:3.3 0.0002115 1.22 AML other m 2023-01-25T04:08:16.76
IV.PLLN.EHE. ML:3.7 0.00040800000000000005 1.1 AML other m 2023-01-25T04:08:16.77
IV.CSLB.HHE. ML:3.0 0.000105 0.72 AML other m 2023-01-25T04:08:17.25
IV.AIO.HHE. ML:3.2 0.0001285 0.88 AML other m 2023-01-25T04:08:18.49
IV.MUCR.HHN. ML:3.3 0.00017449999999999999 1.16 AML other m 2023-01-25T04:08:19.23
IV.MUCR.HHE. ML:3.3 0.0001575 0.5 AML other m 2023-01-25T04:08:22.50
IV.AIO.HHN. ML:3.2 0.0001403 1.52 AML other m 2023-01-25T04:08:23.77
IV.MPNC.HHN. ML:3.7 0.0003745 1.1 AML other m 2023-01-25T04:08:27.42
IV.CAR1.HNE. ML:3.5 0.00008219999999999999 0.44 AML other m 2023-01-25T04:08:48.38
IV.CAR1.HHN. ML:3.5 0.00008499999999999999 1.16 AML other m 2023-01-25T04:08:55.94
IV.SCIAC.HHE. ML:3.0 0.0001291159 1.0208 AML other m 2023-01-25T04:08:03.89
IV.SCIAC.HHN. ML:3.0 0.000112051 0.6208 AML other m 2023-01-25T04:07:56.90
IV.SCIAC.HNE. ML:3.1 0.0001494014 1.0176 AML other m 2023-01-25T04:08:04.40
IV.SCIAC.HNN. ML:3.0 0.00012742409999999999 0.6304 AML other m 2023-01-25T04:07:56.90
IV.CSLB.HNE. ML:3.1 0.00012942115 0.8096 AML other m 2023-01-25T04:07:57.68
IV.CSLB.HNN. ML:3.0 0.00008508613000000001 0.64 AML other m 2023-01-25T04:08:15.15
IV.PLAC.HNE. ML:3.4 0.000108280965 1.1904 AML other m 2023-01-25T04:08:09.17
IV.PLAC.HHE. ML:3.4 0.00010159846999999999 1.0784 AML other m 2023-01-25T04:08:32.09
IV.PLAC.HHN. ML:3.3 0.00008266091000000001 0.8576 AML other m 2023-01-25T04:08:36.80
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