Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 23-02-2023 and time 16:28:12 (UTC) in region Costa Siciliana nord orientale (Messina)

A magnitude ML 2.0 earthquake occured in region: Costa Siciliana nord orientale (Messina), on

  • 23-02-2023 16:28:12 (UTC)
  • 23-02-2023 17:28:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.3520, 15.3830 at 117 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Villafranca Tirrena ME 14 8584 8584
Spadafora ME 14 5021 13605
Venetico ME 15 3911 17516
Valdina ME 18 1355 18871
Torregrotta ME 18 7431 26302
Saponara ME 18 3988 30290
Roccavaldina ME 19 1133 31423
Milazzo ME 19 31646 63069
Rometta ME 20 6650 69719

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NW of Messina (238439 inhabitants)
35 Km NW of Reggio di Calabria (183035 inhabitants)
84 Km N of Acireale (52622 inhabitants)
98 Km N of Catania (314555 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 2.0 2023-02-23
16:28:12		 38.3523 15.3832 117 2024-03-01
17:17:58		 Bollettino Sismico Italiano INGV 115140951
Reviewed
Rev100 		ML 2.0 2023-02-23
16:28:11		 38.3773 15.4165 122 2023-02-23
16:54:16		 Sala Sismica INGV-Roma 114737881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-23 16:28:12 ± 0.19
Latitude 38.3523 ± 0.0162
Longitude 15.3832 ± 0.0138
Depth (km) 117 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 115140951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1693
Semi-minor axis of confidence ellipse (meter) 703
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 180
Circular confidence region, given by single value of horizontal uncertainty (meter) 1690.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 25
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.25635
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 115140951
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-11-13 17:28:30

ML:2.0

Field Value
Value 2.0
Uncertainty 0.4
Num. used stations 7
Type of magnitude ML
Reference to an origin 114737881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-23 16:54:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.BLY.HHZ. 2023-02-23T16:30:14.21 3.0 negative manual Pg 23.08 0
IV.GUMA.HHZ. 2023-02-23T16:30:13.78 3.0 undecidable manual Sn -9.99 0
IV.IMOL.HNZ. 2023-02-23T16:29:58.16 3.0 negative manual Pn 4.14 0
IV.SSFR.HHZ. 2023-02-23T16:29:47.72 3.0 negative manual Pg 9.68 0
IV.CAFI.HHZ. 2023-02-23T16:29:44.74 3.0 undecidable manual Pn 4.07 0
IV.GUMA.HHZ. 2023-02-23T16:29:42.27 3.0 positive manual Pg 11.16 0
IV.FOSV.EHZ. 2023-02-23T16:29:39.21 3.0 positive manual Pn 2.83 0
AC.VLO.HHZ. 2023-02-23T16:29:27.49 3.0 undecidable manual Pg 13.76 0
IV.LPDG.HHZ. 2023-02-23T16:29:16.27 3.0 negative manual Pn -3.34 0
IV.HMDC.HHZ. 2023-02-23T16:29:14.38 3.0 undecidable manual Sg -0.19 0
OT.OT17.EHZ. 2023-02-23T16:29:10.91 3.0 negative manual Pg 3.14 0
IV.RNI2.HHZ. 2023-02-23T16:29:08.39 3.0 undecidable manual Pn -2.32 0
IV.SERS.HNN. 2023-02-23T16:28:55.31 0.6 undecidable manual S 56 136.0638 126 0.41 40
IV.PLAC.HHZ. 2023-02-23T16:28:48.17 0.6 undecidable manual S 83 92.3409 138 0.26 45
IV.SOI.EHN. 2023-02-23T16:28:44.68 0.6 undecidable manual S 118 66.1893 148 0.17 48
IV.SICLA.EHN. 2023-02-23T16:28:41.11 0.6 undecidable manual S 110 30.747 164 -0.26 50
IV.MRCB.HHZ. 2023-02-23T16:28:41.83 0.6 undecidable manual S 127 34.9428 162 0.19 50
IV.IVUG.HHZ. 2023-02-23T16:28:41.81 0.6 undecidable manual S 278 34.8429 162 0.17 50
IV.MSRU.HHZ. 2023-02-23T16:28:40.32 0.6 undecidable manual S 132 14.6742 172 -0.34 51
IV.MPNC.HHZ. 2023-02-23T16:28:40.97 0.6 undecidable manual S 187 22.9548 168 0 53
IV.MILZ.HHN. 2023-02-23T16:28:40.72 0.6 undecidable manual S 236 15.9729 172 0.02 54
IV.CET2.HHZ. 2023-02-23T16:28:37.31 0.3 undecidable manual P 21 139.4604 126 0.02 64
IV.SERS.HNN. 2023-02-23T16:28:37.01 0.3 undecidable manual P 56 136.0638 126 0.07 64
IV.PLAC.HHZ. 2023-02-23T16:28:32.91 0.1 positive manual P 83 92.3409 138 0 94
IV.MPAZ.HHZ. 2023-02-23T16:28:31.11 0.3 undecidable manual P 129 70.1742 146 -0.1 72
IV.SOI.EHN. 2023-02-23T16:28:30.95 0.3 undecidable manual P 118 66.1893 148 0 74
IV.AIO.HHE. 2023-02-23T16:28:30.15 0.3 undecidable manual P 197 44.2224 157 0.46 70
IV.MUCR.HHE. 2023-02-23T16:28:30.33 0.3 undecidable manual P 232 56.0994 152 0.01 75
IV.LIBRI.HHZ. 2023-02-23T16:28:30.15 0.3 undecidable manual P 233 49.617 155 0.19 73
IV.MRCB.HHZ. 2023-02-23T16:28:29.25 0.3 undecidable manual P 127 34.9428 162 -0.04 78
IV.IVUG.HHZ. 2023-02-23T16:28:29.17 0.3 undecidable manual P 278 34.8429 162 -0.11 77
TV.GMB1.HHE. 2023-02-23T16:28:29.58 0.3 undecidable manual P 118 42.8238 158 -0.05 77
IV.MPNC.HHZ. 2023-02-23T16:28:29.49 0.3 undecidable manual P 187 22.9548 168 0.59 70
3D.OEM9.HNE. 2023-02-23T16:28:29.31 0.3 undecidable manual P 277 34.3434 162 0.04 78
IV.MILZ.HHN. 2023-02-23T16:28:28.50 0.3 undecidable manual P 236 15.9729 172 -0.24 77
IV.MSRU.HHZ. 2023-02-23T16:28:28.33 0.1 undecidable manual P 132 14.6742 172 -0.39 100
IV.SICLA.EHN. 2023-02-23T16:28:28.56 0.3 undecidable manual P 110 30.747 164 -0.58 69
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRCB.HHE. ML:2.2 0.00010885 0.98 AML other m 2023-02-23T16:28:44.88
IV.MRCB.HHN. ML:2.1 0.0000877 0.84 AML other m 2023-02-23T16:28:44.80
IV.PLAC.HHN. ML:2.1 0.00006735 0.36 AML other m 2023-02-23T16:28:49.21
IV.PLAC.HHE. ML:2.0 0.00005135 1.2 AML other m 2023-02-23T16:28:49.67
IV.SPS2.HHN. ML:2.0 0.000033799999999999995 0.12 AML other m 2023-02-23T16:28:52.01
IV.SPS2.HHE. ML:2.1 0.00004285 0.38 AML other m 2023-02-23T16:28:52.21
IV.SELL.HHE. ML:1.1 0.0000069 1.2 AML other m 2023-02-23T16:28:55.06
IV.SELL.HHN. ML:1.1 0.00000713 0.4 AML other m 2023-02-23T16:29:00.82
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
Waveforms Seismic signals in miniseed + resp format Download