Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 3.0 on date 06-03-2023 and time 09:18:47 (UTC) in region Malta [Sea]

A magnitude ML 3.0 earthquake occured in region: Malta [Sea], on

  • 06-03-2023 09:18:47 (UTC)
  • 06-03-2023 10:18:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 34.9180, 13.9780 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 3.0 2023-03-06
09:18:47		 34.9178 13.9778 10 2024-03-01
17:18:18		 Bollettino Sismico Italiano INGV 123497351
Reviewed
Rev100 		ML 3.1 2023-03-06
09:18:45		 34.8452 13.8423 10 2023-03-06
09:55:03		 Sala Sismica INGV-Roma 115031021
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-06 09:18:47 ± 0.54
Latitude 34.9178 ± 0.0513
Longitude 13.9778 ± 0.1009
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 123497351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 10440
Semi-minor axis of confidence ellipse (meter) 2850
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 300
Circular confidence region, given by single value of horizontal uncertainty (meter) 10440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 333
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 4.04245
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:3.0

Field Value
Value 3.0
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 123497351
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-11-27 16:37:36

ML:3.1

Field Value
Value 3.1
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 115031021
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-06 09:55:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2023-03-06T09:21:11.70 3.0 undecidable manual Pg 20.07 0
IX.SCL3.EHZ.02 2023-03-06T09:20:55.72 3.0 undecidable manual Sn -7.94 0
IV.EL6.EHZ. 2023-03-06T09:20:50.68 3.0 undecidable manual Pn -1.65 0
IV.ARRO.EHZ. 2023-03-06T09:20:37.40 3.0 undecidable manual Pn -5.56 0
IV.GATE.HHZ. 2023-03-06T09:20:21.87 3.0 undecidable manual Pn -4.34 0
IV.RAFF.HHZ. 2023-03-06T09:19:55.03 1.0 undecidable manual S 8 257.9418 38 0.46 16
IV.PLAC.HHZ. 2023-03-06T09:19:49.04 0.3 undecidable manual P 28 448.7175 38 -0.8 23
IV.HPAC.HHZ. 2023-03-06T09:19:47.84 0.6 undecidable manual S 25 220.3128 38 1.39 28
IV.MSRU.HHZ. 2023-03-06T09:19:43.20 0.3 undecidable manual P 20 395.4042 38 0 31
IV.CSLB.HHZ. 2023-03-06T09:19:36.66 0.3 undecidable manual P 1 335.0091 38 0.97 24
IV.HSRS.HNN. 2023-03-06T09:19:28.01 0.6 undecidable manual P 24 265.8339 38 0.94 25
IV.SSY.HHZ. 2023-03-06T09:19:26.96 0.3 undecidable manual P 21 267.2325 38 -0.28 46
IV.HVZN.HNZ. 2023-03-06T09:19:26.37 0.6 undecidable manual P 15 259.3404 38 0.1 34
IV.RAFF.HHZ. 2023-03-06T09:19:25.85 0.3 undecidable manual P 8 257.9418 38 -0.25 50
IV.HAVL.HHZ. 2023-03-06T09:19:24.45 0.3 undecidable manual P 24 248.6622 38 -0.5 51
IV.HMDC.HHZ. 2023-03-06T09:19:23.03 0.3 undecidable manual P 17 237.6843 38 -0.54 55
ML.MSDA.BHE. 2023-03-06T09:19:21.33 0.6 undecidable manual S 23 118.2927 50 -0.15 70
IV.HPAC.HHZ. 2023-03-06T09:19:21.88 0.3 undecidable manual P 25 220.3128 38 0.47 63
IV.CROCE.HHE. 2023-03-06T09:19:20.85 0.6 undecidable manual P 13 218.2149 38 -0.3 44
MN.WDD.HHE. 2023-03-06T09:19:19.85 0.6 undecidable manual S 26 113.2977 50 -0.3 69
MN.WDD.HHE. 2023-03-06T09:19:07.47 0.6 undecidable manual P 26 113.2977 50 1.24 47
ML.MSDA.BHE. 2023-03-06T09:19:06.58 0.3 undecidable manual P 23 118.2927 50 -0.41 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSY.HNN. ML:3.1 0.00022600000000000002 1.16 AML other m 2023-03-06T09:19:36.30
IV.HAVL.HHE. ML:2.8 0.000132 0.82 AML other m 2023-03-06T09:19:37.57
IV.HAVL.HHN. ML:3.0 0.0001915 0.3 AML other m 2023-03-06T09:19:39.02
IV.SSY.HHN. ML:3.7 0.000822 0.4 AML other m 2023-03-06T09:19:42.73
IV.SSY.HNE. ML:3.2 0.000237 1.08 AML other m 2023-03-06T09:19:42.73
IV.SSY.HHE. ML:3.3 0.00033999999999999997 0.86 AML other m 2023-03-06T09:19:56.87
IV.CSLB.HHN. ML:2.7 0.0000473 0.62 AML other m 2023-03-06T09:20:18.70
IV.CSLB.HHE. ML:2.7 0.00004255 0.84 AML other m 2023-03-06T09:20:25.02
IV.PLAC.HHN. ML:3.0 0.000038150000000000006 0.42 AML other m 2023-03-06T09:20:36.99
IV.PLAC.HHE. ML:3.0 0.0000475 0.8 AML other m 2023-03-06T09:20:38.62
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download