Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 23-03-2023 and time 02:14:44 (Italy) in region Costa Siciliana nord orientale (Messina)

A magnitude ML 1.7 earthquake occured in region: Costa Siciliana nord orientale (Messina), on

  • 23-03-2023 01:14:44 (UTC)
  • 23-03-2023 02:14:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.3960, 15.4240 at 79 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 18 8584 8584
Spadafora ME 20 5021 13605

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NW of Messina (238439 inhabitants)
37 Km NW of Reggio di Calabria (183035 inhabitants)
90 Km N of Acireale (52622 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 1.7 2023-03-23
01:14:44		 38.3955 15.4235 79 2024-03-01
17:18:01		 Bollettino Sismico Italiano INGV 116007821
Reviewed
Rev100 		ML 1.7 2023-03-23
01:14:44		 38.4073 15.4233 74 2023-03-23
01:29:28		 Sala Sismica INGV-Roma 115646051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-23 01:14:44 ± 0.19
Latitude 38.3955 ± 0.0099
Longitude 15.4235 ± 0.0138
Depth (km) 79 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116007821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1240
Semi-minor axis of confidence ellipse (meter) 512
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 291
Circular confidence region, given by single value of horizontal uncertainty (meter) 1240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.14749
Epicentral distance of station farthest from the epicenter (degree) 1.45510
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 115646051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-23 01:29:28

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 116007821
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-04-03 10:05:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2023-03-23T01:15:26.81 0.6 undecidable manual S 190 161.5161 109 -0.98 25
IV.CET2.HHZ. 2023-03-23T01:15:21.37 0.6 undecidable manual S 20 133.7661 113 -0.85 34
IV.MSFR.HHZ. 2023-03-23T01:15:12.54 1.0 undecidable manual S 241 82.8504 127 -0.14 21
IV.MUCR.HHZ. 2023-03-23T01:15:10.08 0.6 undecidable manual S 231 61.7937 137 0.77 38
IV.SOI.EHZ. 2023-03-23T01:15:09.46 1.0 undecidable manual S 123 65.5899 135 -0.41 22
IV.HAVL.HHZ. 2023-03-23T01:15:08.57 0.1 undecidable manual P 190 161.5161 109 -0.82 55
IV.MTTG.HHZ. 2023-03-23T01:15:07.12 1.0 undecidable manual S 151 49.7169 143 -0.51 21
IV.IVUG.HHZ. 2023-03-23T01:15:06.28 0.6 undecidable manual S 270 38.0286 151 0.02 48
IV.IVPL.HHZ. 2023-03-23T01:15:06.27 1.0 undecidable manual S 267 38.628 150 -0.05 24
IV.CET2.HHZ. 2023-03-23T01:15:06.12 0.1 undecidable manual P 20 133.7661 113 -0.05 79
IV.MPNC.HHZ. 2023-03-23T01:15:05.24 0.6 undecidable manual S 193 28.2495 158 -0.11 48
IV.SICLA.EHZ. 2023-03-23T01:15:05.06 0.6 undecidable manual S 121 29.6481 157 -0.4 46
IV.MILZ.HHZ. 2023-03-23T01:15:04.48 0.6 undecidable manual S 231 21.6672 163 -0.38 46
IV.GIZZ.HHN. 2023-03-23T01:15:01.93 0.6 undecidable manual P 46 93.8394 123 0.15 41
IV.MSFR.HHZ. 2023-03-23T01:15:00.84 0.1 undecidable manual P 241 82.8504 127 0.18 87
IV.SOI.EHZ. 2023-03-23T01:14:59.16 0.1 undecidable manual P 123 65.5899 135 0.12 89
IV.IST3.HNZ. 2023-03-23T01:14:59.47 3.0 undecidable manual P 47.8188 1.86 0
IV.MTTG.HHZ. 2023-03-23T01:14:58.31 0.1 undecidable manual P 151 49.7169 143 0.56 83
IV.MUCR.HHZ. 2023-03-23T01:14:58.89 0.1 undecidable manual P 231 61.7937 137 0.17 90
IV.IVUG.HHZ. 2023-03-23T01:14:57.00 0.1 undecidable manual P 270 38.0286 151 0.04 96
IV.IVPL.HHZ. 2023-03-23T01:14:57.04 0.1 undecidable manual P 267 38.628 150 0.05 95
1J.FX12.HHZ.00 2023-03-23T01:14:57.59 0.1 undecidable manual P 143 42.5241 148 0.35 88
IV.SICLA.EHZ. 2023-03-23T01:14:56.51 0.1 undecidable manual P 121 29.6481 157 0.01 97
IV.MILZ.HHZ. 2023-03-23T01:14:56.14 0.1 positive manual P 231 21.6672 163 -0.01 99
IV.ISTR.HHZ. 2023-03-23T01:14:56.73 3.0 undecidable manual P 47.8188 -0.88 0
IV.MPNC.HHZ. 2023-03-23T01:14:56.41 0.1 undecidable manual P 193 28.2495 158 -0.02 98
IV.MSRU.HHZ. 2023-03-23T01:14:55.94 0.1 undecidable manual P 153 16.3725 167 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MILZ.HHE. ML:2.0 0.00014565775 0.2 AML other m 2023-03-23T01:15:04.88
IV.MSRU.HHN. ML:2.0 0.0001495 0.32 AML other m 2023-03-23T01:15:05.00
IV.MSRU.HHE. ML:2.1 0.00016299999999999998 0.18 AML other m 2023-03-23T01:15:05.31
IV.MILZ.HHN. ML:1.6 0.00005405187 0.24 AML other m 2023-03-23T01:15:05.15
IV.SICLA.EHN. ML:1.4 0.00003746023 1.44 AML other m 2023-03-23T01:15:06.27
IV.MPNC.HHN. ML:1.7 0.00006574285500000001 0.48 AML other m 2023-03-23T01:15:06.34
IV.SICLA.EHE. ML:1.5 0.00003913528 0.14 AML other m 2023-03-23T01:15:06.62
IV.MPNC.HHE. ML:1.7 0.00006105 0.8 AML other m 2023-03-23T01:15:07.85
IV.IVUG.HHE. ML:1.7 0.000059389690000000004 0.18 AML other m 2023-03-23T01:15:07.29
IV.IVUG.HHN. ML:1.6 0.000049976065 0.24 AML other m 2023-03-23T01:15:08.00
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