Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 29-09-2023 and time 19:05:44 (Italy) in region 1 km SE San Lorenzo Nuovo (VT)

A magnitude ML 2.4 earthquake occured in region: 1 km SE San Lorenzo Nuovo (VT), on

  • 29-09-2023 17:05:44 (UTC)
  • 29-09-2023 19:05:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6800, 11.9160 at 4 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
San Lorenzo Nuovo VT 1 2091 2091
Grotte di Castro VT 4 2683 4774
Gradoli VT 6 1353 6127
Castel Giorgio TR 6 2131 8258
Bolsena VT 7 3991 12249
Acquapendente VT 8 5506 17755
Onano VT 8 995 18750
Latera VT 9 836 19586
Castel Viscardo TR 11 2938 22524
Proceno VT 11 557 23081
Capodimonte VT 14 1731 24812
Valentano VT 15 2868 27680
Porano TR 15 1966 29646
Allerona TR 16 1794 31440
Marta VT 16 3499 34939
Bagnoregio VT 16 3650 38589
Lubriano VT 16 909 39498
Orvieto TR 16 20630 60128
Sorano GR 17 3428 63556
Montefiascone VT 18 13432 76988
Piansano VT 19 2079 79067
Ischia di Castro VT 20 2326 81393

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NW of Viterbo (67173 inhabitants)
61 Km SW of Perugia (166134 inhabitants)
61 Km W of Terni (111501 inhabitants)
66 Km N of Civitavecchia (52991 inhabitants)
66 Km E of Grosseto (82087 inhabitants)
71 Km W of Foligno (57155 inhabitants)
86 Km SE of Siena (53903 inhabitants)
88 Km S of Arezzo (99543 inhabitants)
99 Km NW of Roma (2864731 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 2023-09-29
17:05:44		 42.6797 11.9162 4 2023-09-29
17:44:24		 Sala Sismica INGV-Roma 121591431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-29 17:05:44 ± 0.11
Latitude 42.6797 ± 0.0045
Longitude 11.9162 ± 0.0061
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121591431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 538
Semi-minor axis of confidence ellipse (meter) 332
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 44
Circular confidence region, given by single value of horizontal uncertainty (meter) 540.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 55
Number of defining phases 54
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.22578
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 36
Magnitude information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 97
Type of magnitude ML
Reference to an origin 121591431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-29 17:44:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.GRAM.HHZ. 2023-09-29T17:06:57.17 3.0 undecidable manual Sg 6.35 0
IV.PIEI.HHZ. 2023-09-29T17:06:17.48 1.0 undecidable manual S 28 107.4147 50 0.6 19
IV.MML1.EHZ. 2023-09-29T17:06:15.20 0.6 undecidable manual S 60 98.3238 50 0.73 36
IV.CASP.HHZ. 2023-09-29T17:06:12.28 0.6 undecidable manual S 279 86.5467 50 0.97 34
IV.CESI.HHZ. 2023-09-29T17:06:11.72 1.0 undecidable manual S 65 88.1451 50 -0.02 22
IV.MURB.HNZ. 2023-09-29T17:06:10.40 1.0 undecidable manual S 37 81.3519 50 0.45 21
IV.ATMI.HHZ. 2023-09-29T17:06:08.46 1.0 undecidable manual S 21 77.9664 50 -0.58 20
IV.SFI.EHZ. 2023-09-29T17:06:07.92 0.1 undecidable manual P 358 136.0638 50 0.41 75
IV.RUFI.EHZ. 2023-09-29T17:06:07.39 0.3 undecidable manual P 346 132.6672 50 0.4 57
IV.TOLF.HHZ. 2023-09-29T17:06:06.45 0.3 undecidable manual S 174 68.6757 50 -0.09 69
IV.ATVA.EHZ. 2023-09-29T17:06:06.99 1.0 undecidable manual S 24 72.8715 50 -0.69 19
IV.CAFI.HHZ. 2023-09-29T17:06:06.89 0.6 undecidable manual S 3 72.1722 50 -0.59 40
IV.SRES.HHZ. 2023-09-29T17:06:06.16 0.6 undecidable manual S 135 69.0753 50 -0.5 42
IV.MPAG.EHZ. 2023-09-29T17:06:06.14 0.3 undecidable manual P 33 125.4744 50 0.24 60
IV.CERT.HHZ. 2023-09-29T17:06:05.29 0.6 undecidable manual P 132 119.1918 50 0.36 39
IV.SMA1.EHZ. 2023-09-29T17:06:05.06 0.3 undecidable manual P 92 115.8951 50 0.64 55
IV.CSP1.EHZ. 2023-09-29T17:06:04.16 0.6 undecidable manual P 66 114.2967 50 -0.01 43
IV.RM33.EHZ. 2023-09-29T17:06:03.43 0.3 undecidable manual P 100 107.7144 50 0.28 62
IV.PIEI.HHZ. 2023-09-29T17:06:03.12 0.3 undecidable manual P 28 107.4147 50 0.02 65
IV.PARC.HHZ. 2023-09-29T17:06:03.21 0.3 undecidable manual P 14 110.6004 50 -0.39 60
IV.FIAM.HHZ. 2023-09-29T17:06:03.11 0.6 undecidable manual P 115 108.3138 50 -0.14 42
IV.MOMA.HHZ. 2023-09-29T17:06:03.19 0.6 undecidable manual S 75 55.0005 50 0.28 45
IV.FDMO.HHZ. 2023-09-29T17:06:02.82 0.3 undecidable manual P 67 103.119 50 0.37 61
IV.CRE.HHZ. 2023-09-29T17:06:02.91 0.3 undecidable manual P 2 104.2179 50 0.29 62
IV.MML1.EHZ. 2023-09-29T17:06:02.05 0.3 undecidable manual P 60 98.3238 50 0.34 62
IV.LNSS.HHZ. 2023-09-29T17:06:01.08 0.3 undecidable manual P 95 92.1411 50 0.33 63
IV.NRCA.HHZ. 2023-09-29T17:06:01.76 0.3 undecidable manual P 80 99.0231 50 -0.06 65
IV.ATPI.EHZ. 2023-09-29T17:06:01.06 0.3 undecidable manual P 25 94.1391 50 -0.01 67
IV.BARO.EHZ. 2023-09-29T17:06:00.73 0.3 undecidable manual S 167 49.1175 50 -0.61 63
IV.CESI.HHZ. 2023-09-29T17:06:00.02 0.3 undecidable manual P 65 88.1451 50 -0.12 66
IV.CASP.HHZ. 2023-09-29T17:06:00.72 0.3 undecidable manual P 279 86.5467 50 0.83 53
IV.ATFO.HHZ. 2023-09-29T17:06:00.96 0.3 undecidable manual P 35 92.9403 50 0.09 66
IV.ORTE.EHN. 2023-09-29T17:05:59.78 1.0 undecidable manual S 122 45.3213 96 -0.3 23
IV.ATVO.HHZ. 2023-09-29T17:05:59.70 0.6 undecidable manual P 27 87.4458 50 -0.34 42
IV.MURB.HNZ. 2023-09-29T17:05:59.17 0.1 undecidable manual P 37 81.3519 50 0.07 90
IV.ASSB.HHZ. 2023-09-29T17:05:57.64 0.3 undecidable manual P 56 72.5718 50 -0.1 68
IV.SRES.HHZ. 2023-09-29T17:05:57.60 0.3 undecidable manual P 135 69.0753 50 0.4 65
IV.ARCI.HHZ. 2023-09-29T17:05:57.52 0.6 undecidable manual S 298 40.626 96 -0.95 37
IV.ATMI.HHZ. 2023-09-29T17:05:57.99 0.3 undecidable manual P 21 77.9664 50 -0.59 60
IV.ATVA.EHZ. 2023-09-29T17:05:57.09 0.1 undecidable manual P 24 72.8715 50 -0.7 78
IV.TOLF.HHZ. 2023-09-29T17:05:56.56 0.3 undecidable manual P 174 68.6757 50 -0.57 62
IV.CAFI.HHZ. 2023-09-29T17:05:56.97 0.1 undecidable manual P 3 72.1722 50 -0.71 77
IV.MGAB.HHZ. 2023-09-29T17:05:54.19 0.3 undecidable manual S 32 30.3474 98 -0.73 62
IV.MOMA.HHZ. 2023-09-29T17:05:54.93 0.3 positive manual P 75 55.0005 50 -0.1 71
IV.CESX.HHZ. 2023-09-29T17:05:54.98 0.3 undecidable manual P 98 55.3002 50 -0.09 71
IV.BARO.EHZ. 2023-09-29T17:05:53.68 1.0 positive manual P 167 49.1175 50 -0.45 22
IV.ORTE.EHN. 2023-09-29T17:05:53.46 0.3 undecidable manual P 122 45.3213 96 0.06 72
TV.SF11.HHZ. 2023-09-29T17:05:53.93 0.3 undecidable manual S 317 28.5492 99 -0.35 70
IV.ARCI.HHZ. 2023-09-29T17:05:52.38 0.3 positive manual P 298 40.626 96 -0.09 73
IV.SACS.HNZ. 2023-09-29T17:05:51.42 0.6 undecidable manual S 358 18.7701 103 0.45 47
IV.MCIV.CHZ. 2023-09-29T17:05:51.89 0.6 undecidable manual S 299 22.3554 101 -0.31 48
TV.SF11.HHZ. 2023-09-29T17:05:50.26 0.3 undecidable manual P 317 28.5492 99 0.21 72
IV.MGAB.HHZ. 2023-09-29T17:05:50.40 0.1 positive manual P 32 30.3474 98 -0.03 100
IV.MCIV.CHZ. 2023-09-29T17:05:49.24 0.1 undecidable manual P 299 22.3554 101 0.39 94
IV.SACS.HNZ. 2023-09-29T17:05:48.65 0.1 undecidable manual P 358 18.7701 103 0.5 92
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACS.HHE. ML:2.6 0.0034352109999999996 0.2304 AML other m 2023-09-29T17:05:52.98
IV.SACS.HHN. ML:2.6 0.003470076 0.2304 AML other m 2023-09-29T17:05:53.91
IV.MCIV.CHN. ML:2.5 0.0023516945 0.1792 AML other m 2023-09-29T17:05:54.07
IV.SACS.HNN. ML:2.6 0.0033500445 0.2304 AML other m 2023-09-29T17:05:53.91
IV.SACS.HNE. ML:2.6 0.0035551140000000003 0.2304 AML other m 2023-09-29T17:05:52.98
IV.MGAB.HNE. ML:2.8 0.0029815775 0.2816 AML other m 2023-09-29T17:05:56.15
IV.MGAB.HHE. ML:2.8 0.0030700895 0.2816 AML other m 2023-09-29T17:05:56.15
IV.MGAB.HHN. ML:2.8 0.0028233044999999997 0.1792 AML other m 2023-09-29T17:05:56.65
IV.MGAB.HNN. ML:2.7 0.002683697 0.2304 AML other m 2023-09-29T17:05:58.20
IV.MCIV.CHE. ML:2.6 0.002654993 0.2048 AML other m 2023-09-29T17:05:56.57
TV.SF11.HHE. ML:2.7 0.0024500000000000004 0.46 AML other m 2023-09-29T17:05:57.38
TV.SF11.HHN. ML:2.8 0.0031878770000000004 0.3968 AML other m 2023-09-29T17:05:57.32
IV.ARCI.HHE. ML:2.3 0.00073941525 0.5632 AML other m 2023-09-29T17:06:02.92
IV.ARCI.HHN. ML:2.4 0.0008225 0.3 AML other m 2023-09-29T17:06:00.87
IV.MOMA.HNE. ML:2.3 0.00042699999999999997 0.36 AML other m 2023-09-29T17:06:03.90
IV.BARO.EHE. ML:1.4 0.00007021005499999999 0.3456 AML other m 2023-09-29T17:06:04.33
IV.BARO.HNN. ML:2.5 0.0008945 0.36 AML other m 2023-09-29T17:06:05.23
IV.BARO.EHN. ML:2.5 0.0008320000000000001 0.34 AML other m 2023-09-29T17:06:05.23
IV.PIEI.HHN. ML:2.3 0.0001875 0.38 AML other m 2023-09-29T17:06:05.36
IV.MOMA.HHN. ML:2.3 0.00043149999999999997 0.28 AML other m 2023-09-29T17:06:06.39
IV.MOMA.HNN. ML:2.5 0.000716 0.26 AML other m 2023-09-29T17:06:06.40
IV.MOMA.HHE. ML:2.3 0.0005420000000000001 0.8 AML other m 2023-09-29T17:06:06.52
IV.CESX.HHN. ML:2.1 0.0002945 0.28 AML other m 2023-09-29T17:06:06.81
IV.CESX.HHE. ML:2.1 0.00026658949999999997 0.64 AML other m 2023-09-29T17:06:12.18
IV.BARO.HNE. ML:2.4 0.00075793675 0.4864 AML other m 2023-09-29T17:06:08.93
IV.CAFI.HNE. ML:2.3 0.0003305 0.34 AML other m 2023-09-29T17:06:08.79
IV.CAFI.HHE. ML:2.3 0.0003395 0.32 AML other m 2023-09-29T17:06:08.79
IV.SRES.HHE. ML:2.2 0.0002806515 0.3328 AML other m 2023-09-29T17:06:09.81
IV.TOLF.HHN. ML:2.4 0.0004005921 0.2816 AML other m 2023-09-29T17:06:09.41
IV.ATMI.HHE. ML:2.9 0.0010778878 0.32 AML other m 2023-09-29T17:06:09.63
IV.CAFI.HHN. ML:2.3 0.000327 0.64 AML other m 2023-09-29T17:06:10.36
IV.CAFI.HNN. ML:2.3 0.0002985 0.62 AML other m 2023-09-29T17:06:10.35
IV.TOLF.HHE. ML:2.5 0.00049928805 0.32 AML other m 2023-09-29T17:06:11.10
IV.SRES.HHN. ML:2.0 0.00017643435 0.3328 AML other m 2023-09-29T17:06:11.22
IV.SFI.EHN. ML:2.0 0.00006345000000000001 1.38 AML other m 2023-09-29T17:06:12.04
IV.ATVO.HNE. ML:2.4 0.0003075 1.5 AML other m 2023-09-29T17:06:13.78
IV.ATVO.HHE. ML:2.5 0.000366 1.5 AML other m 2023-09-29T17:06:13.78
IV.CASP.HHN. ML:2.3 0.000235 1.54 AML other m 2023-09-29T17:06:14.08
IV.CESI.HHN. ML:2.4 0.00028700000000000004 0.62 AML other m 2023-09-29T17:06:14.54
IV.ASSB.HHN. ML:2.3 0.00029253855000000004 0.6784 AML other m 2023-09-29T17:06:14.75
IV.CASP.HHE. ML:2.1 0.0001545 0.76 AML other m 2023-09-29T17:06:14.39
IV.ASSB.HHE. ML:2.2 0.0002845 1.4 AML other m 2023-09-29T17:06:14.86
IV.ATMI.HHN. ML:2.9 0.0011751095 0.4096 AML other m 2023-09-29T17:06:15.33
IV.ATVO.HHN. ML:2.5 0.00040213545 0.4096 AML other m 2023-09-29T17:06:15.70
IV.ATVO.HNN. ML:2.5 0.00040449999999999997 0.42 AML other m 2023-09-29T17:06:15.71
IV.CESI.HHE. ML:2.2 0.00017235565 0.4608 AML other m 2023-09-29T17:06:16.09
IV.ATFO.HHN. ML:2.6 0.0005220025 0.576 AML other m 2023-09-29T17:06:16.24
IV.ATFO.HHE. ML:2.8 0.0006985 0.56 AML other m 2023-09-29T17:06:16.22
IV.ATPI.EHN. ML:2.5 0.00032873835000000003 0.6144 AML other m 2023-09-29T17:06:17.56
IV.ATPI.EHE. ML:2.5 0.00033499999999999996 0.5 AML other m 2023-09-29T17:06:18.66
IV.MML1.EHN. ML:2.1 0.00011999999999999999 0.46 AML other m 2023-09-29T17:06:18.69
IV.FDMO.HHN. ML:2.0 0.00010592840000000001 0.3328 AML other m 2023-09-29T17:06:19.93
IV.MML1.EHE. ML:2.2 0.000156 1.32 AML other m 2023-09-29T17:06:20.70
IV.NRCA.HHN. ML:2.2 0.00017649999999999998 0.9 AML other m 2023-09-29T17:06:20.74
IV.PARC.HHE. ML:0.0 0.0001651689 0.704 AML other m 2023-09-29T17:06:27.94
IV.PIEI.HHE. ML:2.4 0.00023 0.46 AML other m 2023-09-29T17:06:21.56
IV.PARC.HHN. ML:0.0 0.0001689016 0.4352 AML other m 2023-09-29T17:06:05.59
IV.FDMO.HHE. ML:2.1 0.000122 0.52 AML other m 2023-09-29T17:06:22.10
IV.LNSS.HHE. ML:2.3 0.00023675969999999998 0.4352 AML other m 2023-09-29T17:06:18.64
IV.NRCA.HHE. ML:2.1 0.00011600789 0.32 AML other m 2023-09-29T17:06:22.93
IV.LNSS.HHN. ML:2.5 0.00035 1.24 AML other m 2023-09-29T17:06:24.07
IV.CSP1.EHN. ML:2.8 0.000515 0.5 AML other m 2023-09-29T17:06:24.56
IV.SMA1.EHN. ML:2.4 0.00021443475 0.4864 AML other m 2023-09-29T17:06:24.67
IV.CSP1.EHE. ML:2.7 0.000402 0.46 AML other m 2023-09-29T17:06:25.35
IV.CRE.HHE. ML:2.2 0.0001375 1.28 AML other m 2023-09-29T17:06:26.82
IV.CRE.HHN. ML:2.2 0.00013800000000000002 0.42 AML other m 2023-09-29T17:06:26.46
IV.CERT.HHE. ML:2.2 0.000125 0.42 AML other m 2023-09-29T17:06:26.74
IV.CERT.HHN. ML:2.1 0.00009175 1.2 AML other m 2023-09-29T17:06:26.80
IV.RM33.EHE. ML:2.1 0.0001146196 0.4224 AML other m 2023-09-29T17:06:26.55
IV.RM33.EHN. ML:2.2 0.000141 0.46 AML other m 2023-09-29T17:06:27.37
IV.FIAM.HHN. ML:2.1 0.0001152533 0.8576 AML other m 2023-09-29T17:06:32.34
IV.MPAG.EHN. ML:2.1 0.00008865 1.46 AML other m 2023-09-29T17:06:28.91
IV.MPAG.EHE. ML:2.1 0.00009545 0.54 AML other m 2023-09-29T17:06:28.95
IV.SMA1.EHE. ML:2.4 0.00021949999999999997 1.48 AML other m 2023-09-29T17:06:29.00
IV.SFI.EHE. ML:2.0 0.000055942994999999996 0.8704 AML other m 2023-09-29T17:06:27.12
IV.RUFI.EHN. ML:1.8 0.000039385395000000004 0.5248 AML other m 2023-09-29T17:06:34.04
IV.FIAM.HHE. ML:2.3 0.00016499999999999997 0.68 AML other m 2023-09-29T17:06:37.32
IV.ARCI.HNE. ML:2.3 0.0007103173999999999 0.5504 AML other m 2023-09-29T17:06:02.92
IV.ARCI.HNN. ML:2.3 0.00075793545 0.32 AML other m 2023-09-29T17:06:00.88
IV.CASP.HNE. ML:2.2 0.00020639335 0.4608 AML other m 2023-09-29T17:06:16.07
IV.CASP.HNN. ML:2.4 0.00034389815000000003 0.7168 AML other m 2023-09-29T17:06:13.92
IV.ATFO.HNE. ML:2.8 0.00065607985 0.5504 AML other m 2023-09-29T17:06:16.50
IV.ATFO.HNN. ML:2.6 0.00046832284999999993 0.4608 AML other m 2023-09-29T17:06:15.53
IV.ATPI.HNE. ML:2.5 0.00032426255000000005 0.5888 AML other m 2023-09-29T17:06:19.47
IV.ATPI.HNN. ML:2.5 0.00034925995 0.8448 AML other m 2023-09-29T17:06:17.56
IV.LNSS.HNE. ML:2.3 0.00021080184 0.3072 AML other m 2023-09-29T17:06:18.64
IV.LNSS.HNN. ML:2.5 0.0003226587 0.6528 AML other m 2023-09-29T17:06:23.78
IV.MML1.HNE. ML:2.2 0.00016208059999999998 0.6912 AML other m 2023-09-29T17:06:24.02
IV.MML1.HNN. ML:2.2 0.00017343895000000001 0.6656 AML other m 2023-09-29T17:06:27.08
IV.FIAM.HNE. ML:2.4 0.00020732815000000003 1.088 AML other m 2023-09-29T17:06:35.21
IV.FIAM.HNN. ML:2.4 0.00019623075000000002 1.0112 AML other m 2023-09-29T17:06:35.16
IV.PIEI.HNE. ML:2.4 0.00022235385000000002 0.4864 AML other m 2023-09-29T17:06:21.56
IV.PIEI.HNN. ML:2.2 0.00015023359999999998 0.4992 AML other m 2023-09-29T17:06:05.33
IV.RM33.HNE. ML:2.3 0.0001633541 0.4352 AML other m 2023-09-29T17:06:25.66
IV.RM33.HNN. ML:2.3 0.00018903355 0.6144 AML other m 2023-09-29T17:06:24.05
IV.CERT.HNE. ML:2.2 0.00013461052000000002 0.6528 AML other m 2023-09-29T17:06:26.75
IV.SFI.HNE. ML:2.4 0.00016423185000000003 0.9728 AML other m 2023-09-29T17:06:25.43
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