Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 04-10-2023 and time 10:20:35 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 2.4 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 04-10-2023 10:20:35 (UTC)
  • 04-10-2023 12:20:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.4760, 15.5460 at 135 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.

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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
31 Km N of Messina (238439 inhabitants)
42 Km N of Reggio di Calabria (183035 inhabitants)
87 Km SW of Lamezia Terme (70714 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 2.4 2023-10-04
10:20:35		 38.4755 15.5462 135 2023-10-04
10:40:40		 Sala Sismica INGV-Roma 121745041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-04 10:20:35 ± 0.31
Latitude 38.4755 ± 0.0180
Longitude 15.5462 ± 0.0264
Depth (km) 135 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121745041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2242
Semi-minor axis of confidence ellipse (meter) 1844
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 145
Circular confidence region, given by single value of horizontal uncertainty (meter) 2240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 49
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.72400
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 26
Magnitude information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 54
Type of magnitude ML
Reference to an origin 121745041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-04 10:40:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.VSL.HHZ. 2023-10-04T10:23:06.45 3.0 undecidable manual Sg 22.530001 0
IV.ARVD.HHZ. 2023-10-04T10:22:53.74 3.0 undecidable manual Sn -2.33 0
IV.FNVD.HHZ. 2023-10-04T10:22:34.75 3.0 undecidable manual Pg 24.24 0
IV.SAP2.EHZ. 2023-10-04T10:22:06.99 3.0 positive manual Pg 19.32 0
IV.VIVA.HHZ. 2023-10-04T10:21:38.47 3.0 undecidable manual Pg 4.19 0
IV.MCRV.HHZ. 2023-10-04T10:21:38.52 3.0 undecidable manual Sn -5.71 0
IV.VVLD.HHZ. 2023-10-04T10:21:30.59 3.0 undecidable manual Pn -1.04 0
MN.KEK.HHZ. 2023-10-04T10:21:28.17 3.0 undecidable manual Pn -1.65 0
IV.SCTE.HHZ. 2023-10-04T10:21:17.95 3.0 positive manual Pn -1.98 0
IV.AMUR.HHZ. 2023-10-04T10:21:15.59 3.0 positive manual Pn -1.56 0
IV.MIGL.HHZ. 2023-10-04T10:21:12.13 3.0 negative manual Pn -0.91 0
IV.AIO.HHZ. 2023-10-04T10:21:11.22 0.6 undecidable manual S 206 62.2932 153 0.95 48
IV.SOI.EHZ. 2023-10-04T10:21:10.02 0.6 undecidable manual S 135 62.7927 153 -0.31 62
IV.CRAC.EHZ. 2023-10-04T10:21:10.72 3.0 positive manual Pn 0.28 0
IV.IVPL.HHZ. 2023-10-04T10:21:10.23 1.0 undecidable manual S 258 50.4162 158 1.01 24
IV.PTRP.HHZ. 2023-10-04T10:21:10.64 3.0 negative manual Pn -0.46 0
IV.MTTG.HHZ. 2023-10-04T10:21:10.03 0.6 undecidable manual S 166 54.1014 156 0.51 58
IV.MRCB.HHZ. 2023-10-04T10:21:08.15 1.0 undecidable manual S 159 37.3293 163 -0.14 33
IV.GMB1.HHZ. 2023-10-04T10:21:08.89 0.6 undecidable manual S 145 41.1255 162 0.36 62
IV.MGR.HHZ. 2023-10-04T10:21:06.36 0.6 undecidable manual P 0 184.371 122 0.37 43
IV.SIRI.HHZ. 2023-10-04T10:21:06.23 0.3 undecidable manual P 8 191.364 121 -0.5 60
IV.SICLA.EHZ. 2023-10-04T10:21:06.93 0.3 undecidable manual S 149 28.3494 167 -0.86 83
XE.T0701.HHZ. 2023-10-04T10:21:05.28 0.3 undecidable manual P 16 174.5919 124 0.31 68
IV.SALB.HHZ. 2023-10-04T10:21:05.38 0.3 undecidable manual P 24 169.9965 125 0.87 58
MN.CUC.HHZ. 2023-10-04T10:21:04.20 0.6 undecidable manual P 8 169.9965 125 -0.31 46
IV.RAFF.HHZ. 2023-10-04T10:21:04.99 3.0 positive manual Pn 0.76 0
IV.PIPA.HHZ. 2023-10-04T10:21:03.50 0.6 undecidable manual P 44 156.621 127 0.35 49
IV.HAVL.HHZ. 2023-10-04T10:21:03.50 3.0 negative manual Pn -0.67 0
IV.LADO.EHZ. 2023-10-04T10:21:02.66 0.6 undecidable manual P 54 152.8359 128 -0.12 52
IV.TDS.HHZ. 2023-10-04T10:21:02.25 0.3 undecidable manual P 27 148.0407 129 -0.06 81
IV.GRIS.EHZ. 2023-10-04T10:21:01.80 0.3 undecidable manual P 11 142.746 130 -0.01 83
XE.T0702.HHZ. 2023-10-04T10:21:01.89 0.3 undecidable manual P 18 145.6431 129 -0.19 79
IV.HLNI.HHZ. 2023-10-04T10:21:00.43 3.0 positive manual Pn -0.43 0
IV.CET2.HHZ. 2023-10-04T10:20:59.85 0.3 undecidable manual P 17 121.989 135 -0.04 86
IV.SERS.HHZ. 2023-10-04T10:20:59.88 0.3 undecidable manual P 57 116.7942 136 0.45 80
IV.SELL.HHZ. 2023-10-04T10:20:59.29 0.3 undecidable manual P 59 109.2129 138 0.49 80
IV.CAR1.HHZ. 2023-10-04T10:20:57.74 0.3 undecidable manual P 33 103.7184 140 -0.6 78
IV.EPOZ.HHZ. 2023-10-04T10:20:57.41 0.6 undecidable manual P 199 94.4388 142 -0.21 58
IV.MUCR.HHZ. 2023-10-04T10:20:56.67 0.6 undecidable manual P 231 75.6687 148 0.38 59
IV.PLAC.HHZ. 2023-10-04T10:20:56.60 0.6 undecidable manual P 92 77.5668 148 0.19 61
IV.LIBRI.HHZ. 2023-10-04T10:20:55.63 0.6 undecidable manual P 231 69.1752 151 -0.25 61
IV.MTTG.HHZ. 2023-10-04T10:20:55.08 0.3 undecidable manual P 166 54.1014 156 0.04 99
IV.SOI.EHZ. 2023-10-04T10:20:55.38 0.3 undecidable manual P 135 62.7927 153 -0.13 95
IV.NOV.HHZ. 2023-10-04T10:20:55.76 0.6 undecidable manual P 216 61.1943 154 0.35 61
IV.AIO.HHZ. 2023-10-04T10:20:55.57 0.3 undecidable manual P 206 62.2932 153 0.1 96
IV.IVPL.HHZ. 2023-10-04T10:20:54.47 0.6 undecidable manual P 258 50.4162 158 -0.4 61
IV.GMB1.HHZ. 2023-10-04T10:20:54.40 0.3 undecidable manual P 145 41.1255 162 -0.07 100
IV.SICLA.EHZ. 2023-10-04T10:20:53.53 0.3 undecidable manual P 149 28.3494 167 -0.51 93
IV.MRCB.HHZ. 2023-10-04T10:20:53.99 0.3 undecidable manual P 159 37.3293 163 -0.34 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIPA.HHN. ML:2.2 0.000043899999999999996 0.42 AML other m 2023-10-04T10:21:05.39
IV.SALB.HHN. ML:2.1 0.0000302 0.2 AML other m 2023-10-04T10:21:05.89
XE.T0701.HHE. ML:2.1 0.000030600000000000005 1.76 AML other m 2023-10-04T10:21:06.00
XE.T0701.HHN. ML:2.2 0.00003555 1.14 AML other m 2023-10-04T10:21:06.74
IV.SICLA.EHE. ML:2.7 0.00030000000000000003 0.3 AML other m 2023-10-04T10:21:07.26
IV.SIRI.HHN. ML:2.1 0.00002415 0.7 AML other m 2023-10-04T10:21:08.45
IV.SIRI.HHE. ML:2.1 0.00002595 0.5 AML other m 2023-10-04T10:21:08.16
IV.SICLA.EHN. ML:2.7 0.0003285 0.74 AML other m 2023-10-04T10:21:08.50
IV.MRCB.HHE. ML:2.8 0.000348 1.46 AML other m 2023-10-04T10:21:10.82
IV.GMB1.HNE. ML:2.8 0.0003505 1.2 AML other m 2023-10-04T10:21:10.30
IV.GMB1.HHE. ML:2.8 0.00034750000000000004 0.98 AML other m 2023-10-04T10:21:10.90
IV.MTTG.HHE. ML:2.5 0.00016599999999999997 0.36 AML other m 2023-10-04T10:21:10.37
MN.CUC.HHN. ML:1.8 0.000013899999999999999 0.66 AML other m 2023-10-04T10:21:10.89
IV.MRCB.HHN. ML:2.8 0.00033699999999999995 0.38 AML other m 2023-10-04T10:21:10.89
IV.SOI.EHE. ML:2.5 0.0001535 0.64 AML other m 2023-10-04T10:21:10.60
IV.GMB1.HNN. ML:2.9 0.000437 1.12 AML other m 2023-10-04T10:21:11.33
IV.GMB1.HHN. ML:2.8 0.000406 0.38 AML other m 2023-10-04T10:21:11.45
IV.SOI.EHN. ML:2.6 0.0001985 0.22 AML other m 2023-10-04T10:21:11.54
IV.AIO.HHE. ML:2.2 0.00008704999999999999 0.76 AML other m 2023-10-04T10:21:11.43
IV.SALB.HHE. ML:2.1 0.00003135 0.78 AML other m 2023-10-04T10:21:12.32
IV.NOV.HHE. ML:2.6 0.00020549999999999998 0.9 AML other m 2023-10-04T10:21:12.53
IV.CRAC.EHE. ML:2.7 0.00008235000000000001 0.22 AML other m 2023-10-04T10:21:12.81
IV.CRAC.EHN. ML:2.7 0.0000828 0.18 AML other m 2023-10-04T10:21:12.79
IV.AIO.HHN. ML:2.2 0.0000781 1.8 AML other m 2023-10-04T10:21:13.92
IV.PLAC.HHN. ML:2.8 0.00028500000000000004 0.74 AML other m 2023-10-04T10:21:13.19
IV.PLAC.HHE. ML:2.8 0.000279 0.24 AML other m 2023-10-04T10:21:13.72
IV.NOV.HHN. ML:2.6 0.000221 0.52 AML other m 2023-10-04T10:21:13.65
IV.MTTG.HHN. ML:2.6 0.00023300000000000003 0.52 AML other m 2023-10-04T10:21:14.22
IV.LIBRI.HNE. ML:2.2 0.00009035 0.3 AML other m 2023-10-04T10:21:15.16
IV.CAR1.HHE. ML:2.7 0.0002035 0.32 AML other m 2023-10-04T10:21:15.76
IV.CAR1.HHN. ML:2.6 0.00014900000000000002 0.44 AML other m 2023-10-04T10:21:15.77
IV.LIBRI.HHN. ML:2.0 0.000050799999999999995 1.28 AML other m 2023-10-04T10:21:15.16
IV.MUCR.HHE. ML:2.2 0.0000688 0.34 AML other m 2023-10-04T10:21:16.33
IV.LIBRI.HNN. ML:2.4 0.00011734999999999999 0.6 AML other m 2023-10-04T10:21:17.48
IV.MUCR.HHN. ML:2.2 0.00007240000000000001 0.48 AML other m 2023-10-04T10:21:18.02
IV.LIBRI.HHE. ML:1.9 0.000042 0.38 AML other m 2023-10-04T10:21:18.29
IV.SELL.HHE. ML:2.1 0.000051750000000000004 0.42 AML other m 2023-10-04T10:21:18.77
IV.SELL.HNE. ML:2.6 0.00016599999999999997 1.14 AML other m 2023-10-04T10:21:18.98
IV.SERS.HHN. ML:2.4 0.00009005 0.72 AML other m 2023-10-04T10:21:19.30
IV.SERS.HHE. ML:2.3 0.00008205 0.28 AML other m 2023-10-04T10:21:19.74
IV.SELL.HNN. ML:2.6 0.00016549999999999998 0.76 AML other m 2023-10-04T10:21:20.51
IV.SELL.HHN. ML:2.1 0.0000435 1.14 AML other m 2023-10-04T10:21:21.12
IV.GRIS.EHE. ML:2.2 0.00004725 0.98 AML other m 2023-10-04T10:21:22.61
XE.T0702.HHE. ML:2.3 0.0000637 0.24 AML other m 2023-10-04T10:21:22.85
XE.T0702.HHN. ML:2.0 0.00003245 0.86 AML other m 2023-10-04T10:21:22.98
IV.GRIS.EHN. ML:2.1 0.00004245 0.58 AML other m 2023-10-04T10:21:23.24
IV.LADO.EHN. ML:2.5 0.000088 1.18 AML other m 2023-10-04T10:21:26.01
MN.CUC.HHE. ML:2.0 0.0000225 0.56 AML other m 2023-10-04T10:21:27.79
IV.LADO.EHE. ML:2.4 0.00006475 1.54 AML other m 2023-10-04T10:21:27.20
IV.PIPA.HHE. ML:2.2 0.000038150000000000006 0.48 AML other m 2023-10-04T10:21:30.46
IV.VVLD.HHE. ML:2.6 0.0000205 1.56 AML other m 2023-10-04T10:21:32.80
IV.VVLD.HHN. ML:2.5 0.00001265 0.24 AML other m 2023-10-04T10:21:32.92
IV.MCRV.HHE. ML:1.9 0.00001185 0.68 AML other m 2023-10-04T10:21:37.83
IV.MCRV.HHN. ML:2.0 0.000013455000000000002 0.66 AML other m 2023-10-04T10:21:48.58
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