Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 12-04-2023 and time 09:27:37 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 2.3 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 12-04-2023 09:27:37 (UTC)
  • 12-04-2023 11:27:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.6610, 15.5890 at 75 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

An earthquake occurred to
52 Km N of Messina (238439 inhabitants)
62 Km N of Reggio di Calabria (183035 inhabitants)
72 Km SW of Lamezia Terme (70714 inhabitants)
91 Km SW of Cosenza (67546 inhabitants)
91 Km W of Catanzaro (90612 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 2.3 2023-04-12
09:27:37		 38.6613 15.5888 75 2024-03-01
17:18:12		 Bollettino Sismico Italiano INGV 118542461
Reviewed
Rev100 		ML 2.3 2023-04-12
09:27:37		 38.6362 15.5883 76 2023-04-12
09:37:55		 Sala Sismica INGV-Roma 116307191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-12 09:27:37 ± 0.12
Latitude 38.6613 ± 0.0054
Longitude 15.5888 ± 0.0081
Depth (km) 75 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 118542461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 721
Semi-minor axis of confidence ellipse (meter) 369
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 296
Circular confidence region, given by single value of horizontal uncertainty (meter) 720.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 53
Number of defining phases 53
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.31117
Epicentral distance of station farthest from the epicenter (degree) 1.53514
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 36
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 46
Type of magnitude ML
Reference to an origin 116307191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-12 09:37:55

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 45
Type of magnitude ML
Reference to an origin 118542461
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-21 01:31:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
XE.T0702.HHN. 2023-04-12T09:28:12.77 0.6 undecidable manual S 20 124.986 113 -0.53 38
IV.GRIS.EHZ. 2023-04-12T09:28:12.50 0.6 undecidable manual S 11 121.8891 114 -0.18 42
IV.SOI.EHZ. 2023-04-12T09:28:05.00 0.6 undecidable manual S 148 76.7676 127 0.74 39
IV.AIO.HHZ. 2023-04-12T09:28:05.85 0.6 undecidable manual S 202 82.5507 125 0.58 41
IV.GRI.EHN. 2023-04-12T09:28:04.07 0.6 undecidable manual S 76 74.0703 129 0.27 46
IV.SIRI.HHZ. 2023-04-12T09:28:03.23 0.3 undecidable manual P 8 170.3961 106 -0.26 53
1J.FX12.HHZ.00 2023-04-12T09:28:02.30 0.6 undecidable manual S 170 64.3911 133 0.07 48
IV.IVUG.HHZ. 2023-04-12T09:28:01.40 0.6 undecidable manual S 241 59.9955 135 -0.15 48
IV.FERC.HHZ.00 2023-04-12T09:28:01.10 0.6 undecidable manual S 116 52.2033 140 0.69 42
IY.OPPI.HHE. 2023-04-12T09:28:01.00 0.6 undecidable manual S 140 56.9985 137 -0.1 49
3D.OEM9.HNE. 2023-04-12T09:28:01.76 0.6 undecidable manual S 240 60.0954 135 0.2 48
XE.T0701.HNN. 2023-04-12T09:28:01.58 0.3 undecidable manual P 17 153.735 108 0.07 60
IV.MPNC.HHN. 2023-04-12T09:28:01.44 0.6 undecidable manual S 200 60.6948 135 -0.21 48
IV.MRCB.HHZ. 2023-04-12T09:28:00.80 0.6 undecidable manual S 170 56.2992 138 -0.19 48
IV.IST3.HHZ. 2023-04-12T09:27:59.00 0.6 undecidable manual S 296 34.5432 152 0.73 43
IV.MSRU.HHZ. 2023-04-12T09:27:59.40 0.6 undecidable manual S 189 44.622 145 -0.02 51
IY.SPDC.HHZ. 2023-04-12T09:27:59.30 0.6 undecidable manual S 107 49.4172 142 -0.73 42
IV.MILZ.HHZ. 2023-04-12T09:27:59.90 0.6 undecidable manual S 216 53.3022 139 -0.66 43
IV.SICLA.EHZ. 2023-04-12T09:27:59.40 0.6 undecidable manual S 166 46.2204 144 -0.22 49
XE.MORMA.HHE. 2023-04-12T09:27:59.31 0.3 undecidable manual P 14 138.0618 110 -0.35 59
XE.T0702.HHN. 2023-04-12T09:27:57.98 0.1 undecidable manual P 20 124.986 113 -0.17 84
IV.GRIS.EHZ. 2023-04-12T09:27:57.70 0.3 undecidable manual P 11 121.8891 114 -0.09 64
IV.CELI.HHZ. 2023-04-12T09:27:57.14 0.3 undecidable manual P 44 114.1968 115 0.21 64
IV.SERS.HHZ. 2023-04-12T09:27:56.22 0.1 undecidable manual P 66 103.7184 118 0.46 83
IV.EPIT.HHZ. 2023-04-12T09:27:56.64 1.0 undecidable manual P 206 105.117 118 0.73 19
IV.SELL.HHZ. 2023-04-12T09:27:55.74 0.1 positive manual P 68 96.6255 120 0.75 76
IV.CET2.HHZ. 2023-04-12T09:27:55.42 0.1 positive manual P 18 101.2209 119 -0.07 90
IV.MCPD.HHZ. 2023-04-12T09:27:54.95 0.1 negative manual P 231 95.7264 120 0.05 92
IV.SPS2.HHZ. 2023-04-12T09:27:54.72 1.0 undecidable manual P 43 95.238 121 -0.12 23
IV.MUCR.HHZ. 2023-04-12T09:27:54.61 0.1 positive manual P 222 92.6406 121 0.05 92
IV.SOI.EHZ. 2023-04-12T09:27:53.12 0.1 negative manual P 148 76.7676 127 0.19 92
IV.LIBRI.HHN. 2023-04-12T09:27:53.70 0.3 undecidable manual P 222 86.0472 124 -0.17 68
IV.AIO.HHZ. 2023-04-12T09:27:53.64 0.1 positive manual P 202 82.5507 125 0.12 93
IV.CAR1.HHZ. 2023-04-12T09:27:53.55 0.1 undecidable manual P 39 84.8484 124 -0.19 91
IV.GRI.EHN. 2023-04-12T09:27:52.69 0.3 undecidable manual P 76 74.0703 129 0.02 72
IV.PLAC.HHZ. 2023-04-12T09:27:52.88 0.1 negative manual P 107 77.367 127 -0.11 94
IV.GIZZ.HHZ. 2023-04-12T09:27:51.69 0.3 undecidable manual P 56 64.0914 133 -0.04 73
TV.GMB1.HHZ. 2023-04-12T09:27:51.01 0.1 positive manual P 160 57.7977 137 -0.16 97
3D.OEM5.HHZ. 2023-04-12T09:27:51.89 0.3 undecidable manual P 244 60.1953 135 0.51 67
IV.IVPL.HHZ. 2023-04-12T09:27:51.61 0.1 positive manual P 239 61.5939 135 0.1 97
3D.OEM9.HNE. 2023-04-12T09:27:51.50 0.1 undecidable manual P 240 60.0954 135 0.12 97
1J.FX12.HHZ.00 2023-04-12T09:27:51.68 0.3 undecidable manual P 170 64.3911 133 -0.08 73
IV.IVUG.HHZ. 2023-04-12T09:27:51.58 0.1 positive manual P 241 59.9955 135 0.21 95
IV.FERC.HHZ.00 2023-04-12T09:27:50.62 0.1 undecidable manual P 116 52.2033 140 -0.09 99
IT.SAAM.HNN. 2023-04-12T09:27:50.87 0.3 undecidable manual P 165 56.0994 138 -0.16 73
IV.MPNC.HHN. 2023-04-12T09:27:50.97 0.1 undecidable manual P 200 60.6948 135 -0.46 90
IV.MRCB.HHZ. 2023-04-12T09:27:50.76 0.1 positive manual P 170 56.2992 138 -0.28 95
IY.SPDC.HHZ. 2023-04-12T09:27:50.55 0.1 undecidable manual P 107 49.4172 142 0.06 100
IY.OPPI.HHE. 2023-04-12T09:27:50.91 0.1 undecidable manual P 140 56.9985 137 -0.2 96
IV.MILZ.HHZ. 2023-04-12T09:27:50.69 0.1 positive manual P 216 53.3022 139 -0.11 98
IV.IST3.HHZ. 2023-04-12T09:27:49.85 0.1 undecidable manual P 296 34.5432 152 0.38 97
IV.MSRU.HHZ. 2023-04-12T09:27:49.88 0.1 positive manual P 189 44.622 145 -0.26 97
IV.SICLA.EHZ. 2023-04-12T09:27:49.99 0.1 undecidable manual P 166 46.2204 144 -0.26 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.IST3.HHE. ML:2.7 0.0006885 0.12 AML other m 2023-04-12T09:27:59.35
IV.IST3.HNE. ML:2.6 0.0005625297 0.128 AML other m 2023-04-12T09:27:59.36
IV.MSRU.HHN. ML:2.4 0.00029424910000000004 0.0832 AML other m 2023-04-12T09:27:59.68
IV.MSRU.HNN. ML:2.3 0.00026231135 0.0832 AML other m 2023-04-12T09:27:59.64
IV.MSRU.HNE. ML:2.4 0.0003355 1.58 AML other m 2023-04-12T09:27:59.08
IV.SICLA.EHN. ML:2.4 0.00032652049999999996 0.32 AML other m 2023-04-12T09:27:59.96
IV.MSRU.HHE. ML:2.4 0.00034441044999999995 0.1536 AML other m 2023-04-12T09:27:59.88
IV.IST3.HHN. ML:2.6 0.0005524013 0.1984 AML other m 2023-04-12T09:28:00.74
IV.IST3.HNN. ML:2.6 0.0004828502 0.1664 AML other m 2023-04-12T09:28:00.66
IV.MRCB.HHN. ML:2.4 0.000261 0.18 AML other m 2023-04-12T09:28:01.16
IV.MRCB.HHE. ML:2.4 0.000249 0.18 AML other m 2023-04-12T09:28:01.78
TV.GMB1.HNN. ML:2.5 0.0003515 1.36 AML other m 2023-04-12T09:28:01.15
TV.GMB1.HHN. ML:2.0 0.00011899999999999999 1.36 AML other m 2023-04-12T09:28:01.83
IT.DLNV.HNN. ML:2.7 0.0006435 0.52 AML other m 2023-04-12T09:28:02.26
IV.IVUG.HHE. ML:2.4 0.0002845 0.44 AML other m 2023-04-12T09:28:02.83
IV.IVPL.HHE. ML:2.3 0.000223 0.72 AML other m 2023-04-12T09:28:03.78
IV.SICLA.EHE. ML:2.5 0.00041400000000000003 0.26 AML other m 2023-04-12T09:28:03.69
IV.IVPL.HHN. ML:2.4 0.00024349999999999998 1.28 AML other m 2023-04-12T09:28:03.34
IV.IVUG.HHN. ML:2.3 0.000194 1.16 AML other m 2023-04-12T09:28:04.20
IV.GIZZ.HHE. ML:2.4 0.000235 0.16 AML other m 2023-04-12T09:28:04.44
IV.GIZZ.HHN. ML:2.5 0.000308 0.32 AML other m 2023-04-12T09:28:04.77
IV.CAR1.HHN. ML:2.4 0.000185 0.42 AML other m 2023-04-12T09:28:05.77
IV.CAR1.HHE. ML:2.4 0.0002035 0.22 AML other m 2023-04-12T09:28:07.23
IY.SPDC.HHE. ML:2.4 0.000321849 0.3584 AML other m 2023-04-12T09:28:07.71
IY.SPDC.HHN. ML:2.4 0.00032925749999999996 0.2816 AML other m 2023-04-12T09:28:08.35
IV.SPS2.HHE. ML:1.9 0.000055249999999999994 0.54 AML other m 2023-04-12T09:28:08.66
IV.SPS2.HHN. ML:2.1 0.00008754999999999999 0.26 AML other m 2023-04-12T09:28:09.02
IV.CET2.HHE. ML:2.7 0.00032999999999999994 1.46 AML other m 2023-04-12T09:28:10.73
IV.CET2.HHN. ML:2.9 0.000523 0.42 AML other m 2023-04-12T09:28:10.38
IV.SOI.EHN. ML:1.9 0.00007515 0.86 AML other m 2023-04-12T09:28:10.35
IV.SELL.HHE. ML:1.8 0.000051250000000000006 0.5 AML other m 2023-04-12T09:28:10.55
IV.SELL.HHN. ML:1.7 0.000033549999999999996 0.58 AML other m 2023-04-12T09:28:10.51
IV.SOI.EHE. ML:1.9 0.0000727 0.64 AML other m 2023-04-12T09:28:11.95
IV.CELI.HHN. ML:1.8 0.0000356 0.48 AML other m 2023-04-12T09:28:11.53
IV.AIO.HHE. ML:2.0 0.0000857 1.4 AML other m 2023-04-12T09:28:12.09
IV.CELI.HHE. ML:1.6 0.00002665 0.42 AML other m 2023-04-12T09:28:12.15
IV.SERS.HHE. ML:1.8 0.00003845 0.42 AML other m 2023-04-12T09:28:12.20
IV.AIO.HHN. ML:2.2 0.00012025 0.26 AML other m 2023-04-12T09:28:12.59
IV.GRIS.EHE. ML:2.2 0.00008840000000000001 0.42 AML other m 2023-04-12T09:28:13.25
IV.SERS.HHN. ML:1.8 0.00003795 0.36 AML other m 2023-04-12T09:28:13.62
IV.GRIS.EHN. ML:2.3 0.00010284999999999999 0.46 AML other m 2023-04-12T09:28:15.23
TV.GMB1.HNE. ML:2.7 0.0005085 0.1 AML other m 2023-04-12T09:28:19.88
TV.GMB1.HHE. ML:2.2 0.000164 0.1 AML other m 2023-04-12T09:28:19.88
IV.SIRI.HHN. ML:1.9 0.000032149999999999995 0.22 AML other m 2023-04-12T09:28:24.11
IV.SIRI.HHE. ML:2.1 0.00003825 0.22 AML other m 2023-04-12T09:28:25.70
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