Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 12-01-2024 and time 13:33:09 (Italy) in region 4 km E Spoleto (PG)

A magnitude ML 1.2 earthquake occured in region: 4 km E Spoleto (PG), on

  • 12-01-2024 12:33:09 (UTC)
  • 12-01-2024 13:33:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7500, 12.7870 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.

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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
Spoleto PG 4 38218 38218
Sant'Anatolia di Narco PG 5 564 38782
Scheggino PG 6 461 39243
Vallo di Nera PG 7 364 39607
Campello sul Clitunno PG 8 2442 42049
Castel Ritaldi PG 12 3278 45327
Poggiodomo PG 13 117 45444
Cerreto di Spoleto PG 13 1075 46519
Ferentillo TR 14 1913 48432
Trevi PG 15 8469 56901
Montefranco TR 17 1276 58177
Monteleone di Spoleto PG 17 599 58776
Arrone TR 19 2763 61539
Cascia PG 19 3217 64756
Polino TR 19 233 64989
Sellano PG 19 1079 66068
Montefalco PG 19 5679 71747
Giano dell'Umbria PG 20 3846 75593

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NE of Terni (111501 inhabitants)
24 Km S of Foligno (57155 inhabitants)
51 Km SE of Perugia (166134 inhabitants)
67 Km NE of Viterbo (67173 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
76 Km W of Teramo (54892 inhabitants)
83 Km N of Guidonia Montecelio (88673 inhabitants)
87 Km N of Tivoli (56533 inhabitants)
98 Km N 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 1.2 2024-01-12
12:33:09		 42.75 12.7868 10 2024-01-12
12:39:56		 Sala Sismica INGV-Roma 124600521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-01-12 12:33:09 ± 0.11
Latitude 42.7500 ± 0.0072
Longitude 12.7868 ± 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 124600521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 870
Semi-minor axis of confidence ellipse (meter) 783
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 212
Circular confidence region, given by single value of horizontal uncertainty (meter) 870.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
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) 0.09803
Epicentral distance of station farthest from the epicenter (degree) 0.45865
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:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 124600521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-01-12 12:39:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2024-01-12T12:33:26.59 0.6 undecidable manual S 42 50.9157 50 0.74 54
IV.ASSB.HHZ. 2024-01-12T12:33:21.15 0.6 undecidable manual S 342 34.0437 50 -0.21 66
IV.CESI.HHZ. 2024-01-12T12:33:20.01 0.6 undecidable manual S 19 29.8479 50 -0.22 66
IV.NRCA.HHZ. 2024-01-12T12:33:19.86 0.6 undecidable manual S 71 28.2495 50 0.06 68
IV.LNSS.HHZ. 2024-01-12T12:33:19.12 0.6 undecidable manual S 128 26.3514 50 -0.17 67
IV.CSP1.EHZ. 2024-01-12T12:33:19.17 0.6 positive manual P 42 50.9157 50 0.17 64
IV.ARRO.EHZ. 2024-01-12T12:33:16.72 0.6 undecidable manual S 185 19.0698 119 -0.45 64
IV.ASSB.HHZ. 2024-01-12T12:33:16.18 0.6 undecidable manual P 342 34.0437 50 -0.23 65
IV.LNSS.HHZ. 2024-01-12T12:33:15.27 0.6 undecidable manual P 128 26.3514 50 0.05 69
IV.CESI.HHZ. 2024-01-12T12:33:15.59 0.3 undecidable manual P 19 29.8479 50 -0.17 100
IV.NRCA.HHZ. 2024-01-12T12:33:15.16 1.0 undecidable manual P 71 28.2495 50 -0.35 32
IV.CESX.HHZ. 2024-01-12T12:33:14.87 0.3 undecidable manual P 226 22.6551 115 0.23 100
IV.GAVE.HNZ. 2024-01-12T12:33:14.61 0.6 undecidable manual S 126 10.878 134 -0.25 68
IV.ARRO.EHZ. 2024-01-12T12:33:14.65 0.6 undecidable manual P 185 19.0698 119 0.66 60
IV.GAVE.HNZ. 2024-01-12T12:33:12.74 0.6 undecidable manual P 126 10.878 134 0.08 70
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.3 0.00009810830000000001 0.1024 AML other m 2024-01-12T12:33:20.76
IV.LNSS.HHN. ML:1.3 0.000107977325 0.2624 AML other m 2024-01-12T12:33:21.93
IV.NRCA.HHE. ML:1.2 0.00008531100499999999 0.1216 AML other m 2024-01-12T12:33:21.25
IV.NRCA.HHN. ML:1.1 0.00006010805 0.1408 AML other m 2024-01-12T12:33:22.76
IV.CESI.HHE. ML:1.2 0.000067754285 0.9408 AML other m 2024-01-12T12:33:20.48
IV.CESI.HHN. ML:1.1 0.000064292295 0.256 AML other m 2024-01-12T12:33:20.39
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