Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.9 on date 01-02-2023 and time 23:55:07 (UTC) in region Malta [Sea]

A magnitude ML 2.9 earthquake occured in region: Malta [Sea], on

  • 01-02-2023 23:55:07 (UTC)
  • 02-02-2023 00:55:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 34.8490, 14.3130 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 2.9 2023-02-01
23:55:07		 34.8487 14.3128 10 2024-03-01
17:18:15		 Bollettino Sismico Italiano INGV 120387421
Reviewed
Rev100 		ML 2.9 2023-02-01
23:55:07		 34.8528 14.3868 9 2023-02-02
00:13:02		 Sala Sismica INGV-Roma 113968061
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-01 23:55:07 ± 0.43
Latitude 34.8487 ± 0.0252
Longitude 14.3128 ± 0.0405
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 120387421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3720
Semi-minor axis of confidence ellipse (meter) 2700
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 283
Circular confidence region, given by single value of horizontal uncertainty (meter) 3720.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 286
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 1.06120
Epicentral distance of station farthest from the epicenter (degree) 3.98130
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:2.9

Field Value
Value 2.9
Uncertainty 0.2
Num. used stations 29
Type of magnitude ML
Reference to an origin 120387421
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-08-22 15:55:22

ML:2.9

Field Value
Value 2.9
Uncertainty 0.2
Num. used stations 29
Type of magnitude ML
Reference to an origin 113968061
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-02 00:13:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PLAC.HHZ. 2023-02-01T23:56:09.40 0.3 undecidable manual P 25 441.9243 38 0.25 20
IV.MSRU.HHZ. 2023-02-01T23:56:03.82 0.3 undecidable manual P 15 393.5061 38 0.7 18
IV.IVPL.HHZ. 2023-02-01T23:56:03.82 0.3 undecidable manual P 8 395.8038 38 0.42 20
IV.MPNC.HHZ. 2023-02-01T23:56:01.43 0.3 undecidable manual P 14 377.4333 38 0.32 21
IV.PLLN.EHZ. 2023-02-01T23:55:59.03 0.3 undecidable manual P 358 349.0839 38 1.44 13
IV.MUCR.HHZ. 2023-02-01T23:55:59.24 0.3 undecidable manual P 8 357.8751 38 0.56 20
IV.CIMI.HHZ. 2023-02-01T23:55:57.12 0.3 undecidable manual P 349 342.9012 38 0.3 22
IV.CSLB.HHZ. 2023-02-01T23:55:57.61 0.3 undecidable manual P 356 343.4007 38 0.73 19
IV.CPTP.HHZ. 2023-02-01T23:55:50.33 0.3 undecidable manual P 357 284.2044 38 0.82 23
IV.HLNI.HHZ. 2023-02-01T23:55:48.65 0.3 undecidable manual P 10 281.8068 38 -0.57 26
IV.AGST.EHZ. 2023-02-01T23:55:48.94 0.3 undecidable manual P 17 279.4092 38 0.02 31
IV.RAFF.HHZ. 2023-02-01T23:55:46.45 0.3 undecidable manual P 1 263.3364 38 -0.47 33
IV.CLTA.HHN. 2023-02-01T23:55:46.03 0.3 undecidable manual P 353 258.1416 38 -0.23 36
IV.HSRS.HNN. 2023-02-01T23:55:45.70 0.6 undecidable manual P 18 261.9378 38 -1.04 17
ML.XLND.BHE. 2023-02-01T23:55:44.78 0.6 undecidable manual S 356 131.5683 50 -0.39 46
IV.ACATE.HNE. 2023-02-01T23:55:43.78 0.6 undecidable manual P 4 241.8801 38 -0.47 26
IV.HAVL.HHN. 2023-02-01T23:55:43.58 0.3 undecidable manual P 17 245.1657 38 -1.08 29
ML.MSDA.BHE. 2023-02-01T23:55:41.62 0.6 undecidable manual S 7 117.7932 50 0.12 51
IV.CROCE.HHE. 2023-02-01T23:55:40.38 0.3 undecidable manual P 5 221.0121 38 -1.26 32
IV.LINA.HHE. 2023-02-01T23:55:35.57 0.6 undecidable manual P 311 173.3931 50 -0.07 43
ML.XLND.BHE. 2023-02-01T23:55:29.22 0.1 undecidable manual P 356 131.5683 50 0.03 100
ML.MSDA.BHE. 2023-02-01T23:55:27.58 0.1 undecidable manual P 7 117.7932 50 0.51 93
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CIMI.HHE. ML:2.8 0.000054934415 0.3584 AML other m 2023-02-01T23:56:01.29
IV.IVPL.HHE. ML:3.3 0.00011479665 0.8704 AML other m 2023-02-01T23:56:05.61
IV.CIMI.HNE. ML:2.9 0.00006794040999999999 1.6416 AML other m 2023-02-01T23:56:06.89
IV.PLLN.EHN. ML:3.3 0.0001578386 0.5632 AML other m 2023-02-01T23:56:09.44
IV.CSLB.HNE. ML:2.8 0.000058816229999999996 0.912 AML other m 2023-02-01T23:56:13.33
IV.MPNC.HHE. ML:3.1 0.00009111213500000001 0.4736 AML other m 2023-02-01T23:56:13.72
IV.MSRU.HHE. ML:3.0 0.000064611315 1.424 AML other m 2023-02-01T23:56:20.26
IV.CSLB.HNN. ML:2.8 0.000054904935 1.1776 AML other m 2023-02-01T23:56:20.92
IV.AGST.EHN. ML:3.1 0.0001762103 1.5392 AML other m 2023-02-01T23:56:24.90
IV.HLNI.HHN. ML:2.7 0.00007728456 1.6416 AML other m 2023-02-01T23:56:26.00
IV.CPTP.HHN. ML:2.8 0.00009391321 0.5632 AML other m 2023-02-01T23:56:26.32
IV.HLNI.HHE. ML:2.8 0.000077503865 1.7056 AML other m 2023-02-01T23:56:29.13
IV.AGST.EHE. ML:2.9 0.0001175832 0.4096 AML other m 2023-02-01T23:56:30.59
IV.PLAC.HHE. ML:2.9 0.000035483670000000005 0.96 AML other m 2023-02-01T23:56:35.67
IV.CSLB.HHN. ML:2.5 0.00002605 1.58 AML other m 2023-02-01T23:56:39.03
IV.PLLN.EHE. ML:3.2 0.0001425496 0.8992 AML other m 2023-02-01T23:56:39.52
IV.CSLB.HHE. ML:2.5 0.000031 1.34 AML other m 2023-02-01T23:56:39.93
IV.MUCR.HHN. ML:2.7 0.000040294355 1.488 AML other m 2023-02-01T23:56:44.78
IV.CIMI.HNN. ML:3.0 0.00008702959000000001 1.2832 AML other m 2023-02-01T23:56:44.06
IV.CIMI.HHN. ML:2.9 0.00007291416000000001 1.1808 AML other m 2023-02-01T23:56:44.13
IV.IVPL.HNN. ML:2.8 0.000033403015 0.128 AML other m 2023-02-01T23:56:46.07
IV.MSRU.HHN. ML:3.0 0.0000531109 1.2832 AML other m 2023-02-01T23:56:46.88
IV.PLAC.HNE. ML:3.2 0.0000711701085 0.8736 AML other m 2023-02-01T23:56:46.26
IV.IVPL.HHN. ML:3.3 0.00010867041500000001 0.8704 AML other m 2023-02-01T23:56:48.44
IV.IVPL.HNE. ML:2.7 0.000029264143 0.0128 AML other m 2023-02-01T23:56:53.51
IV.MPNC.HHN. ML:3.0 0.00007331718500000001 0.5632 AML other m 2023-02-01T23:56:53.45
IV.MUCR.HHE. ML:2.6 0.000037478405 0.5888 AML other m 2023-02-01T23:56:55.94
IV.PLAC.HHN. ML:2.8 0.000031472585 0.8352 AML other m 2023-02-01T23:56:58.55
IV.PLAC.HNN. ML:3.2 0.00006785524 1.1136 AML other m 2023-02-01T23:56:59.42
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