Earthquake with magnitude of ML 3.3 on date 22-02-2023 and time 09:58:33 (UTC) in region Malta [Sea]

A magnitude ML 3.3 earthquake occured in region: Malta [Sea], on

  • 22-02-2023 09:58:33 (UTC)
  • 22-02-2023 10:58:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 34.7920, 14.2800 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.

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 3.3 2023-02-22
09:58:33
34.7922 14.2805 10 2024-03-01
17:18:17
Bollettino Sismico Italiano INGV 122874961
Reviewed
Rev100
ML 3.3 2023-02-22
09:58:34
34.8012 14.2947 10 2023-02-22
10:14:26
Sala Sismica INGV-Roma 114693891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-22 09:58:33 ± 0.4
Latitude 34.7922 ± 0.0243
Longitude 14.2805 ± 0.0252
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 122874961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3100
Semi-minor axis of confidence ellipse (meter) 1700
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 322
Circular confidence region, given by single value of horizontal uncertainty (meter) 3100.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 274
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 1.12055
Epicentral distance of station farthest from the epicenter (degree) 4.04425
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:3.3

Field Value
Value 3.3
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 122874961
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-11-07 07:01:22

ML:3.3

Field Value
Value 3.3
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 114693891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-22 10:14:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RAFF.HHZ. 2023-02-22T09:59:43.72 0.6 undecidable manual S 2 269.73 38 0.02 30
IV.PLAC.HHZ. 2023-02-22T09:59:36.69 0.3 undecidable manual P 25 448.9173 38 0.24 26
IV.MPNC.HHZ. 2023-02-22T09:59:29.68 0.6 undecidable manual P 14 384.2265 38 1.27 13
IV.CSLB.HHZ. 2023-02-22T09:59:24.78 0.6 undecidable manual P 357 349.4835 38 0.7 17
IV.CORL.HHZ. 2023-02-22T09:59:24.70 0.6 undecidable manual P 346 354.978 38 -0.08 20
IV.HLNI.HHZ. 2023-02-22T09:59:16.41 0.6 undecidable manual P 10 288.489 38 -0.09 24
IV.SSY.HHZ. 2023-02-22T09:59:14.69 0.6 undecidable manual P 15 271.9278 38 0.26 28
IV.RAFF.HHZ. 2023-02-22T09:59:13.76 0.3 undecidable manual P 2 269.73 38 -0.4 42
IV.CLTA.HHE. 2023-02-22T09:59:13.43 0.3 undecidable manual P 354 264.0357 38 -0.02 47
IV.HAVL.HHN. 2023-02-22T09:59:11.20 0.3 undecidable manual P 17 252.0588 38 -0.76 43
IV.HPAC.HHZ. 2023-02-22T09:59:09.38 0.6 undecidable manual P 18 223.2099 38 1 32
ML.MSDA.BHZ. 2023-02-22T09:59:09.80 0.6 undecidable manual S 8 124.3866 50 0.09 67
IV.CROCE.HHZ. 2023-02-22T09:59:08.46 0.6 undecidable manual P 6 227.5056 38 -0.44 39
IV.LINA.HHE. 2023-02-22T09:59:02.26 0.6 undecidable manual P 313 175.491 50 -0.14 56
IV.LPDG.HHE. 2023-02-22T09:59:01.76 0.6 undecidable manual P 299 169.9965 50 0.2 56
ML.MSDA.BHZ. 2023-02-22T09:58:54.41 0.3 undecidable manual P 8 124.3866 50 -0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HPAC.HHE. ML:3.6 0.000891 1 AML other m 2023-02-22T09:59:42.15
IV.HPAC.HHN. ML:3.5 0.000762 0.92 AML other m 2023-02-22T09:59:45.16
IV.RAFF.HHE. ML:3.2 0.0002825 1.46 AML other m 2023-02-22T09:59:57.86
IV.RAFF.HHN. ML:3.3 0.00028849999999999997 1.56 AML other m 2023-02-22T09:59:59.01
IV.SSY.HHE. ML:4.1 0.001915 0.7 AML other m 2023-02-22T10:00:00.00
IV.SSY.HHN. ML:4.0 0.001495 0.34 AML other m 2023-02-22T10:00:00.16
IV.SSY.HNN. ML:3.6 0.0006425000000000001 0.38 AML other m 2023-02-22T10:00:00.00
IV.SSY.HNE. ML:3.6 0.0006745000000000001 1.2 AML other m 2023-02-22T10:00:00.35
IV.HLNI.HHN. ML:3.3 0.0002635 1.2 AML other m 2023-02-22T10:00:03.07
IV.HLNI.HHE. ML:3.1 0.000187 0.7 AML other m 2023-02-22T10:00:03.46
IV.CORL.HHN. ML:3.0 0.0000847 0.66 AML other m 2023-02-22T10:00:05.53
IV.CSLB.HHN. ML:2.8 0.00004935 0.68 AML other m 2023-02-22T10:00:06.07
IV.CSLB.HNN. ML:3.0 0.00007435 0.56 AML other m 2023-02-22T10:00:06.10
IV.CSLB.HHE. ML:2.8 0.000052900000000000005 1.1 AML other m 2023-02-22T10:00:06.98
IV.MPNC.HHN. ML:3.4 0.00017649999999999998 0.82 AML other m 2023-02-22T10:00:12.30
IV.CSLB.HNE. ML:3.0 0.00008995 0.72 AML other m 2023-02-22T10:00:19.17
IV.CORL.HHE. ML:3.0 0.0000854 0.98 AML other m 2023-02-22T10:00:21.79
IV.MPNC.HHE. ML:3.4 0.000174 0.98 AML other m 2023-02-22T10:00:23.40
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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