Earthquake with magnitude of ML 3.5 on date 28-06-2023 and time 05:49:26 (UTC) in region Malta [Sea]

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

  • 28-06-2023 05:49:26 (UTC)
  • 28-06-2023 07:49:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 34.8420, 13.9300 at 10 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.

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 2023-06-28
05:49:26
34.8418 13.9305 10 2023-06-28
10:37:32
Sala Sismica INGV-Roma 118778281
Reviewed
Rev100
ML 3.6 2023-06-28
05:49:26
34.7433 14.0707 132 2023-06-28
06:04:22
Sala Sismica INGV-Roma 118775751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-06-28 05:49:26 ± 0.76
Latitude 34.8418 ± 0.0513
Longitude 13.9305 ± 0.0866
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 118778281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 8820
Semi-minor axis of confidence ellipse (meter) 4240
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) 8820.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 327
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 3.26364
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:3.5

Field Value
Value 3.5
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 118778281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-06-28 10:37:32

ML:3.6

Field Value
Value 3.6
Uncertainty 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 118775751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-06-28 06:04:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IX.SCL3.EHZ.02 2023-06-28T05:51:38.63 3.0 undecidable manual Sg 20.440001 0
IV.PANTE.HHZ. 2023-06-28T05:51:08.38 3.0 undecidable manual Sn 0.64 0
IV.VAGA.HHZ. 2023-06-28T05:51:06.39 3.0 negative manual Pg 19.280001 0
IV.VVLD.HHZ. 2023-06-28T05:51:05.26 3.0 undecidable manual Pg 10.91 0
IV.VLS.HHZ. 2023-06-28T05:50:55.86 3.0 undecidable manual Pg 0
AC.SRN.HHZ. 2023-06-28T05:50:48.41 3.0 undecidable manual Pn -2.45 0
IV.GALF.HHZ. 2023-06-28T05:50:47.92 0.3 undecidable manual S 10 323.232 38 -0.32 64
IV.HLNI.HHZ. 2023-06-28T05:50:39.83 0.6 undecidable manual S 17 290.5869 38 -1.36 31
IX.MNT3.EHZ.02 2023-06-28T05:50:39.14 3.0 undecidable manual Pn 0.44 0
IV.PANTE.HHZ. 2023-06-28T05:50:36.66 3.0 positive manual Pg 5.73 0
IV.HVZN.HHZ. 2023-06-28T05:50:36.40 0.3 undecidable manual S 15 268.5312 38 -0.05 79
IV.HAVL.HHZ. 2023-06-28T05:50:35.52 0.3 undecidable manual S 24 258.1416 38 1.32 51
IV.PIPA.HHZ. 2023-06-28T05:50:35.95 3.0 undecidable manual Pg 10.17 0
7C.SPAOL.HNZ. 2023-06-28T05:50:27.85 3.0 undecidable manual Sn -1.21 0
IV.USI.HHZ. 2023-06-28T05:50:20.53 3.0 positive manual Pn -3.2 0
IV.SERS.HHZ. 2023-06-28T05:50:19.34 3.0 undecidable manual Pn -1.66 0
IV.PLLN.EHZ. 2023-06-28T05:50:18.14 1.0 negative manual P 3 349.983 38 0.99 15
IV.SOLUN.HHZ. 2023-06-28T05:50:18.49 0.1 positive manual P 354 362.2596 38 -0.18 77
IV.CIMI.HHZ. 2023-06-28T05:50:16.37 0.3 positive manual P 355 338.7054 38 0.63 56
IV.CORL.HHZ. 2023-06-28T05:50:16.48 1.0 undecidable manual P 351 343.2009 38 0.18 21
IV.GALF.HHZ. 2023-06-28T05:50:14.34 0.1 undecidable manual P 10 323.232 38 0.52 81
IV.HLNI.HHZ. 2023-06-28T05:50:09.20 0.6 positive manual P 17 290.5869 38 -0.55 44
IV.SSY.HHZ. 2023-06-28T05:50:07.84 0.3 positive manual P 21 276.612 38 -0.17 75
IV.HVZN.HHZ. 2023-06-28T05:50:06.71 0.1 undecidable manual P 15 268.5312 38 -0.3 100
IV.HAVL.HHZ. 2023-06-28T05:50:04.99 1.0 negative manual P 24 258.1416 38 -0.72 22
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SOLUN.HHN. ML:3.2 0.00013700000000000002 0.94 AML other m 2023-06-28T05:50:21.59
IV.HAVL.HHN. ML:3.7 0.0008425 0.88 AML other m 2023-06-28T05:50:50.11
IV.HLNI.HNE. ML:3.5 0.00039 0.32 AML other m 2023-06-28T05:50:52.74
IV.HLNI.HHE. ML:3.5 0.000384 0.3 AML other m 2023-06-28T05:50:52.73
IV.SSY.HNE. ML:3.9 0.001135 0.34 AML other m 2023-06-28T05:50:52.76
IV.SERS.HHE. ML:2.9 0.00001825 0.38 AML other m 2023-06-28T05:50:52.41
IV.HVZN.HHN. ML:3.8 0.000955 0.52 AML other m 2023-06-28T05:50:52.98
IV.HVZN.HNN. ML:3.8 0.0010860000000000002 1.48 AML other m 2023-06-28T05:50:52.02
IV.HAVL.HHE. ML:3.5 0.000569 0.42 AML other m 2023-06-28T05:50:53.03
IV.SSY.HHE. ML:3.7 0.0007905 0.84 AML other m 2023-06-28T05:50:53.88
IV.GALF.HHN. ML:3.7 0.0005225 0.7 AML other m 2023-06-28T05:50:54.86
IV.SSY.HNN. ML:3.8 0.000948 0.4 AML other m 2023-06-28T05:50:55.86
IV.HVZN.HHE. ML:3.7 0.000851 0.46 AML other m 2023-06-28T05:50:55.97
IV.GALF.HHE. ML:3.4 0.0002415 1.68 AML other m 2023-06-28T05:50:55.13
IV.HVZN.HNE. ML:3.7 0.0008755 1.54 AML other m 2023-06-28T05:50:56.01
IV.USI.HHE. ML:3.1 0.000054149999999999995 0.98 AML other m 2023-06-28T05:50:56.95
IV.HLNI.HHN. ML:3.5 0.00045799999999999997 0.42 AML other m 2023-06-28T05:50:56.48
IV.SSY.HHN. ML:3.8 0.00098 0.44 AML other m 2023-06-28T05:50:57.29
IV.HLNI.HNN. ML:3.6 0.000484 0.4 AML other m 2023-06-28T05:50:59.09
IV.SOLUN.HHE. ML:3.2 0.00011365 1.02 AML other m 2023-06-28T05:51:00.14
IV.SERS.HHN. ML:3.0 0.000022800000000000002 0.44 AML other m 2023-06-28T05:51:00.27
IV.PLLN.EHN. ML:3.6 0.0003305 0.42 AML other m 2023-06-28T05:51:00.68
IV.CIMI.HHN. ML:3.4 0.000234 1.4 AML other m 2023-06-28T05:51:01.72
IV.PLLN.EHE. ML:3.5 0.000284 0.42 AML other m 2023-06-28T05:51:07.26
IV.PIPA.HHE. ML:3.2 0.0000312 0.62 AML other m 2023-06-28T05:51:07.47
IV.CIMI.HHE. ML:3.2 0.000157 1.32 AML other m 2023-06-28T05:51:07.18
IV.PIPA.HHN. ML:3.2 0.0000295 0.58 AML other m 2023-06-28T05:51:12.12
IV.CORL.HNE. ML:3.2 0.00014500000000000003 0.7 AML other m 2023-06-28T05:51:16.27
IV.CORL.HHE. ML:3.2 0.00014450000000000002 0.68 AML other m 2023-06-28T05:51:16.28
IV.CORL.HNN. ML:3.1 0.00010835 1.46 AML other m 2023-06-28T05:51:17.25
IV.CORL.HHN. ML:3.1 0.00010284999999999999 1.46 AML other m 2023-06-28T05:51:17.25
IV.USI.HHN. ML:3.6 0.00015900000000000002 1.32 AML other m 2023-06-28T05:51:24.89
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