Earthquake with magnitude of ML 1.5 on date 29-09-2023 and time 00:37:10 (UTC) in region 1 km N San Lorenzo Nuovo (VT)

A magnitude ML 1.5 earthquake occured in region: 1 km N San Lorenzo Nuovo (VT), on

  • 29-09-2023 00:37:10 (UTC)
  • 29-09-2023 02:37:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6930, 11.9080 at 10 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.

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
Castel Giorgio TR 6 2131 6905
Acquapendente VT 7 5506 12411
Gradoli VT 7 1353 13764
Onano VT 8 995 14759
Bolsena VT 8 3991 18750
Proceno VT 10 557 19307
Latera VT 10 836 20143
Castel Viscardo TR 11 2938 23081
Allerona TR 14 1794 24875
Valentano VT 16 2868 27743
Sorano GR 16 3428 31171
Capodimonte VT 16 1731 32902
Porano TR 16 1966 34868
Orvieto TR 17 20630 55498
Bagnoregio VT 17 3650 59148
Marta VT 18 3499 62647
Lubriano VT 18 909 63556
Castell'Azzara GR 19 1476 65032
Montefiascone VT 20 13432 78464

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NW of Viterbo (67173 inhabitants)
61 Km SW of Perugia (166134 inhabitants)
62 Km W of Terni (111501 inhabitants)
65 Km E of Grosseto (82087 inhabitants)
67 Km N of Civitavecchia (52991 inhabitants)
71 Km W of Foligno (57155 inhabitants)
84 Km SE of Siena (53903 inhabitants)
86 Km S of Arezzo (99543 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 1.5 2023-09-29
00:37:10
42.6928 11.9082 10 2023-09-29
00:50:35
Sala Sismica INGV-Roma 121564031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-29 00:37:10 ± 0.19
Latitude 42.6928 ± 0.0081
Longitude 11.9082 ± 0.0110
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121564031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 928
Semi-minor axis of confidence ellipse (meter) 694
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 220
Circular confidence region, given by single value of horizontal uncertainty (meter) 930.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
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) 0.15648
Epicentral distance of station farthest from the epicenter (degree) 0.63762
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 121564031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-29 00:50:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAFI.HHZ. 2023-09-29T00:37:31.76 0.6 undecidable manual S 4 70.7736 50 -0.25 48
IV.MOMA.HHZ. 2023-09-29T00:37:28.67 0.6 undecidable manual S 77 55.3002 50 0.78 42
IV.BARO.EHE. 2023-09-29T00:37:26.44 0.6 undecidable manual S 167 50.7159 50 -0.23 50
IV.ARCI.HNE. 2023-09-29T00:37:24.20 0.6 undecidable manual S 297 39.4272 50 0.55 47
IV.CAFI.HHZ. 2023-09-29T00:37:22.44 0.6 undecidable manual P 4 70.7736 50 -0.48 45
IV.MGAB.HHZ. 2023-09-29T00:37:21.38 0.6 undecidable manual S 34 29.4483 50 0.38 50
IV.MOMA.HHZ. 2023-09-29T00:37:20.93 0.6 negative manual P 77 55.3002 50 0.39 48
IV.BARO.EHE. 2023-09-29T00:37:19.53 0.6 undecidable manual P 167 50.7159 50 -0.3 49
TV.SF11.HHZ. 2023-09-29T00:37:19.90 0.6 undecidable manual S 316 26.9508 50 -0.43 50
IV.MCIV.CHZ. 2023-09-29T00:37:18.79 0.6 undecidable manual S 297 21.1677 116 0.14 53
IV.ARCI.HNE. 2023-09-29T00:37:18.82 0.6 undecidable manual P 297 39.4272 50 0.73 44
IV.SACS.HHZ. 2023-09-29T00:37:17.51 0.6 undecidable manual S 0 17.3715 121 0.03 55
IV.MGAB.HHZ. 2023-09-29T00:37:16.19 0.1 positive manual P 34 29.4483 50 -0.37 100
TV.SF11.HHZ. 2023-09-29T00:37:15.76 0.6 undecidable manual P 316 26.9508 50 -0.41 50
IV.MCIV.CHZ. 2023-09-29T00:37:15.52 0.6 undecidable manual P 297 21.1677 116 0.32 51
IV.SACS.HHZ. 2023-09-29T00:37:14.28 0.6 positive manual P 0 17.3715 121 -0.25 52
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SACS.HHE. ML:1.5 0.000253 0.36 AML other m 2023-09-29T00:37:17.79
IV.SACS.HHN. ML:1.3 0.00016265442 0.26 AML other m 2023-09-29T00:37:18.05
IV.MGAB.HHE. ML:1.4 0.00012505 0.14 AML other m 2023-09-29T00:37:23.58
IV.MGAB.HHN. ML:1.6 0.000183 0.18 AML other m 2023-09-29T00:37:23.87
IV.SACS.HNE. ML:1.5 0.00029097245 0.37 AML other m 2023-09-29T00:37:17.79
IV.SACS.HNN. ML:1.2 0.00014669642 0.24 AML other m 2023-09-29T00:37:18.05
IV.MGAB.HNE. ML:1.4 0.00011565917000000001 0.4 AML other m 2023-09-29T00:37:27.53
IV.MGAB.HNN. ML:1.6 0.0001852316 0.2 AML other m 2023-09-29T00:37:23.87
IV.MOMA.HHE. ML:1.1 0.00003149624 0.26 AML other m 2023-09-29T00:37:33.04
IV.MOMA.HHN. ML:1.6 0.00010007392000000001 0.54 AML other m 2023-09-29T00:37:45.26
IV.MOMA.HNE. ML:1.6 0.000098436155 1.02 AML other m 2023-09-29T00:37:26.65
IV.MOMA.HNN. ML:1.9 0.0001952877 0.99 AML other m 2023-09-29T00:37:41.17
IV.CAFI.HHE. ML:1.0 0.000016561179 0.3 AML other m 2023-09-29T00:37:35.56
IV.CAFI.HHN. ML:0.8 0.000011014079999999999 0.16 AML other m 2023-09-29T00:37:33.60
IV.CAFI.HNE. ML:1.8 0.00009419455 0.66 AML other m 2023-09-29T00:37:24.04
IV.CAFI.HNN. ML:1.8 0.00010657333 0.65 AML other m 2023-09-29T00:37:24.03
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download