Earthquake with magnitude of ML 3.7 on date 18-01-2023 and time 22:38:44 (UTC) in region Malta [Sea]

A magnitude ML 3.7 earthquake occured in region: Malta [Sea], on

  • 18-01-2023 22:38:44 (UTC)
  • 18-01-2023 23:38:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 34.9920, 14.2390 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.

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 3.7 2023-01-18
22:38:44
34.9918 14.2387 20 2024-03-01
17:18:14
Bollettino Sismico Italiano INGV 119970701
Reviewed
Rev100
ML 3.8 2023-01-18
22:38:41
34.7745 14.5847 10 2023-01-18
22:51:40
Sala Sismica INGV-Roma 113668871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-18 22:38:44 ± 0.36
Latitude 34.9918 ± 0.0234
Longitude 14.2387 ± 0.0176
Depth (km) 20 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 119970701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2714
Semi-minor axis of confidence ellipse (meter) 656
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 157
Circular confidence region, given by single value of horizontal uncertainty (meter) 2710.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 266
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 1.03962
Epicentral distance of station farthest from the epicenter (degree) 4.20613
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:3.7

Field Value
Value 3.7
Uncertainty 0.2
Num. used stations 30
Type of magnitude ML
Reference to an origin 119970701
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-08-21 07:39:06

ML:3.8

Field Value
Value 3.8
Uncertainty 0.2
Num. used stations 32
Type of magnitude ML
Reference to an origin 113668871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-18 22:51:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GRI.EHZ. 2023-01-18T22:39:48.77 0.6 undecidable manual P 24 466.8771 54 0.78 15
IV.PLAC.HHZ. 2023-01-18T22:39:43.45 0.3 undecidable manual P 26 430.5468 54 -0.02 29
IV.HVIT.HHZ. 2023-01-18T22:39:42.70 0.6 undecidable manual S 6 223.4097 54 0.39 41
IV.HMDC.HHZ. 2023-01-18T22:39:42.50 0.3 undecidable manual S 12 223.6095 54 0.13 65
IV.CROCE.HHE. 2023-01-18T22:39:38.50 0.6 undecidable manual S 7 205.9383 54 -0.05 49
IV.MSRU.HHZ. 2023-01-18T22:39:37.76 0.6 undecidable manual P 17 380.1306 54 0.56 18
IV.SOI.EHZ. 2023-01-18T22:39:36.90 0.6 undecidable manual P 25 378.2325 54 -0.06 20
IV.MPNC.HHZ. 2023-01-18T22:39:35.68 0.6 undecidable manual P 15 363.7581 54 0.52 18
IV.MUCR.HHZ. 2023-01-18T22:39:33.60 0.3 undecidable manual P 9 343.2009 54 1 23
IV.MSFR.HHZ. 2023-01-18T22:39:32.91 0.6 undecidable manual P 5 338.9052 54 0.84 17
IV.EPZF.HHZ. 2023-01-18T22:39:31.31 0.3 undecidable manual P 10 319.0362 54 1.72 16
IV.CSLB.HHZ. 2023-01-18T22:39:31.45 0.6 undecidable manual P 357 327.1281 54 0.85 17
IV.LINA.HHE. 2023-01-18T22:39:28.50 0.6 undecidable manual S 309 158.0196 54 0.27 60
IV.GALF.HHZ. 2023-01-18T22:39:28.86 0.6 undecidable manual P 5 303.0633 54 1.26 14
IV.LPDG.HHE. 2023-01-18T22:39:27.70 0.6 undecidable manual S 292 156.9207 54 -0.29 61
IV.AGST.EHZ. 2023-01-18T22:39:23.21 0.3 undecidable manual P 19 266.4333 54 0.17 46
IV.HLNI.HHZ. 2023-01-18T22:39:22.89 0.3 undecidable manual P 12 267.5322 54 -0.29 45
1J.FX01.HHN. 2023-01-18T22:39:21.06 0.6 undecidable manual P 22 248.1627 54 0.29 35
IV.SSY.HHZ. 2023-01-18T22:39:20.87 0.3 undecidable manual P 17 251.6592 54 -0.34 51
IV.HSRS.HNN. 2023-01-18T22:39:20.44 0.6 undecidable manual P 20 249.1617 54 -0.47 33
IV.HVZN.HNZ. 2023-01-18T22:39:19.60 0.6 undecidable manual P 10 246.2646 54 -0.94 28
IV.ACATE.HNE. 2023-01-18T22:39:18.08 0.3 undecidable manual P 6 226.7064 54 -0.02 65
IV.HAVL.HHZ. 2023-01-18T22:39:18.02 0.3 undecidable manual P 20 232.2897 54 -0.77 51
IV.HMDC.HHZ. 2023-01-18T22:39:17.51 0.3 undecidable manual P 12 223.6095 54 -0.22 64
ML.XLND.HHE. 2023-01-18T22:39:17.10 0.3 undecidable manual S 359 115.3956 95 -0.32 100
IV.HVIT.HHZ. 2023-01-18T22:39:16.98 0.6 undecidable manual P 6 223.4097 54 -0.72 37
IV.CROCE.HHE. 2023-01-18T22:39:14.99 0.6 undecidable manual P 7 205.9383 54 -0.53 44
IV.LINA.HHE. 2023-01-18T22:39:09.24 0.3 undecidable manual P 309 158.0196 54 -0.32 90
IV.LPDG.HHE. 2023-01-18T22:39:09.79 0.6 undecidable manual P 292 156.9207 54 0.36 60
ML.XLND.HHE. 2023-01-18T22:39:03.81 0.3 undecidable manual P 359 115.3956 95 0.49 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HMDC.HHN. ML:3.7 0.001345 0.54 AML other m 2023-01-18T22:39:55.06
IV.HMDC.HNN. ML:3.7 0.0012445 0.54 AML other m 2023-01-18T22:39:55.06
IV.HAVL.HHE. ML:3.7 0.001185 0.96 AML other m 2023-01-18T22:39:57.88
IV.HMDC.HHE. ML:3.1 0.0002935 1.34 AML other m 2023-01-18T22:39:58.14
IV.HMDC.HNE. ML:3.7 0.00125 1.32 AML other m 2023-01-18T22:39:58.15
IV.HAVL.HHN. ML:3.8 0.0013700000000000001 1.5 AML other m 2023-01-18T22:39:59.10
IV.SSY.HNN. ML:4.0 0.001675 0.4 AML other m 2023-01-18T22:40:03.94
IV.SSY.HHN. ML:4.4 0.004974999999999999 0.48 AML other m 2023-01-18T22:40:10.12
IV.AGST.EHN. ML:4.0 0.0015899999999999998 0.44 AML other m 2023-01-18T22:40:10.39
IV.HLNI.HHN. ML:3.7 0.0008505 0.7 AML other m 2023-01-18T22:40:11.70
IV.HLNI.HHE. ML:3.6 0.0006580000000000001 0.56 AML other m 2023-01-18T22:40:11.12
IV.SSY.HNE. ML:4.1 0.002255 1.4 AML other m 2023-01-18T22:40:11.74
IV.SSY.HHE. ML:4.4 0.0044 1.36 AML other m 2023-01-18T22:40:11.08
IV.AGST.EHE. ML:3.8 0.0011749999999999998 1.1 AML other m 2023-01-18T22:40:14.23
IV.MSFR.HHN. ML:3.4 0.00023799999999999998 0.84 AML other m 2023-01-18T22:40:18.49
IV.EPZF.HHN. ML:3.8 0.000601 0.72 AML other m 2023-01-18T22:40:24.47
IV.GALF.HHN. ML:4.0 0.001175 0.72 AML other m 2023-01-18T22:40:26.01
IV.CSLB.HHE. ML:3.5 0.00028849999999999997 1 AML other m 2023-01-18T22:40:27.90
IV.EPZF.HHE. ML:3.8 0.000609 0.42 AML other m 2023-01-18T22:40:28.81
IV.MUCR.HHE. ML:3.4 0.00022449999999999998 1.56 AML other m 2023-01-18T22:40:30.96
IV.GALF.HHE. ML:3.9 0.0010699999999999998 0.6 AML other m 2023-01-18T22:40:31.68
IV.PLAC.HHN. ML:3.5 0.0001625 0.7 AML other m 2023-01-18T22:40:32.46
IV.CSLB.HHN. ML:3.6 0.0003585 0.78 AML other m 2023-01-18T22:40:32.40
IV.MSFR.HHE. ML:3.4 0.00022499999999999997 0.44 AML other m 2023-01-18T22:40:34.04
IV.MUCR.HHN. ML:3.4 0.00023300000000000003 0.74 AML other m 2023-01-18T22:40:37.70
IV.MPNC.HHE. ML:3.9 0.00061 0.88 AML other m 2023-01-18T22:40:41.53
IV.MPNC.HHN. ML:3.9 0.00059 1.12 AML other m 2023-01-18T22:40:43.21
IV.MSRU.HHN. ML:3.7 0.0003635 0.74 AML other m 2023-01-18T22:40:46.38
IV.MSRU.HHE. ML:3.8 0.000382 0.94 AML other m 2023-01-18T22:40:47.05
IV.PLAC.HHE. ML:3.5 0.00014900000000000002 1.58 AML other m 2023-01-18T22:40:54.03
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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