Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 12-12-2023 and time 02:34:26 (Italy) in region 5 km NW Sant'Anatolia di Narco (PG)

A magnitude ML 2.1 earthquake occured in region: 5 km NW Sant'Anatolia di Narco (PG), on

  • 12-12-2023 01:34:26 (UTC)
  • 12-12-2023 02:34:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7670, 12.7910 at 7 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Sant'Anatolia di Narco PG 5 564 564
Spoleto PG 6 38218 38782
Vallo di Nera PG 6 364 39146
Campello sul Clitunno PG 6 2442 41588
Scheggino PG 7 461 42049
Castel Ritaldi PG 12 3278 45327
Cerreto di Spoleto PG 12 1075 46402
Trevi PG 13 8469 54871
Poggiodomo PG 13 117 54988
Ferentillo TR 16 1913 56901
Sellano PG 18 1079 57980
Montefalco PG 18 5679 63659
Monteleone di Spoleto PG 18 599 64258
Giano dell'Umbria PG 19 3846 68104
Montefranco TR 19 1276 69380
Cascia PG 19 3217 72597

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km SE of Foligno (57155 inhabitants)
26 Km NE of Terni (111501 inhabitants)
50 Km SE of Perugia (166134 inhabitants)
68 Km NW of L'Aquila (69753 inhabitants)
68 Km NE of Viterbo (67173 inhabitants)
76 Km W of Teramo (54892 inhabitants)
85 Km N of Guidonia Montecelio (88673 inhabitants)
89 Km N of Tivoli (56533 inhabitants)
100 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 2.1 2023-12-12
01:34:26		 42.7672 12.7913 7 2023-12-12
05:02:30		 Sala Sismica INGV-Roma 123973461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-12 01:34:26 ± 0.12
Latitude 42.7672 ± 0.0063
Longitude 12.7913 ± 0.0086
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123973461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 770
Semi-minor axis of confidence ellipse (meter) 474
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 295
Circular confidence region, given by single value of horizontal uncertainty (meter) 770.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.67539
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 35
Type of magnitude ML
Reference to an origin 123973461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-12 05:02:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CING.HHZ. 2023-12-12T01:34:50.58 0.3 undecidable manual S 26 74.9694 50 0.66 60
IV.FOSV.EHE. 2023-12-12T01:34:45.75 1.0 undecidable manual S 358 58.5969 50 0.22 23
IV.GUMA.HHZ. 2023-12-12T01:34:45.31 0.6 undecidable manual S 53 55.0005 50 0.73 40
IV.MML1.EHZ. 2023-12-12T01:34:40.60 0.3 undecidable manual S 21 41.1255 50 -0.27 71
IV.FDMO.HHZ. 2023-12-12T01:34:39.72 0.3 undecidable manual S 39 38.3283 100 -0.26 72
IV.CING.HHZ. 2023-12-12T01:34:39.40 0.1 undecidable manual P 26 74.9694 50 -0.61 82
IV.MF5.EHZ. 2023-12-12T01:34:37.45 0.1 undecidable manual P 66 59.5959 50 -0.18 94
IV.FOSV.EHE. 2023-12-12T01:34:37.05 0.1 undecidable manual P 358 58.5969 50 -0.43 89
IV.TSM1.DH1.12 2023-12-12T01:34:37.81 0.3 undecidable manual P 346 65.9895 50 -0.81 57
IV.NRCA.HHZ. 2023-12-12T01:34:36.42 0.3 undecidable manual S 74 27.2505 104 0.19 74
IV.CESI.HHZ. 2023-12-12T01:34:36.34 0.3 undecidable manual S 19 27.9498 104 -0.1 76
IV.GUMA.HHZ. 2023-12-12T01:34:36.42 0.1 undecidable manual P 53 55.0005 50 -0.51 88
IV.SMA1.EHZ. 2023-12-12T01:34:35.75 0.1 undecidable manual P 109 46.9197 50 0.08 98
IV.MML1.EHZ. 2023-12-12T01:34:35.46 0.1 undecidable manual P 21 41.1255 50 0.68 85
IV.FDMO.HHZ. 2023-12-12T01:34:35.25 0.1 undecidable manual P 39 38.3283 100 0.98 75
IV.RM33.EHZ. 2023-12-12T01:34:35.55 0.1 undecidable manual P 130 44.8218 50 0.19 96
IV.ASSB.HHZ. 2023-12-12T01:34:34.07 0.6 undecidable manual S 100
IV.CESX.HHZ. 2023-12-12T01:34:34.68 0.3 undecidable manual S 224 24.2535 105 -0.52 69
IT.GNU.HGE. 2023-12-12T01:34:33.09 0.6 undecidable manual S 283 18.4704 110 -0.2 50
IV.CESI.HHZ. 2023-12-12T01:34:32.42 0.1 undecidable manual P 19 27.9498 104 0.19 99
IV.CESX.HHZ. 2023-12-12T01:34:32.29 0.1 undecidable manual P 224 24.2535 105 0.78 84
IV.NRCA.HHZ. 2023-12-12T01:34:31.71 0.1 undecidable manual P 74 27.2505 104 -0.39 95
IV.GAVE.EHZ. 2023-12-12T01:34:31.11 0.3 undecidable manual S 135 11.7771 120 -0.08 78
IV.ARRO.EHZ. 2023-12-12T01:34:31.29 0.3 undecidable manual P 186 20.9679 108 0.41 72
IT.GNU.HGE. 2023-12-12T01:34:30.63 0.1 undecidable manual P 283 18.4704 110 0.22 100
IV.MOMA.HHZ. 2023-12-12T01:34:30.55 0.1 undecidable manual S 100
IV.GAVE.EHZ. 2023-12-12T01:34:28.69 0.1 undecidable manual P 135 11.7771 120 -0.5 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHN. ML:2.1 0.0009475 1.78 AML other m 2023-12-12T01:34:35.01
IV.ARRO.EHE. ML:2.1 0.0009105 0.6 AML other m 2023-12-12T01:34:35.91
IV.CESI.HHN. ML:2.5 0.001605 0.26 AML other m 2023-12-12T01:34:36.81
IV.CESI.HNN. ML:2.5 0.0016 0.26 AML other m 2023-12-12T01:34:36.82
IV.NRCA.HHE. ML:2.1 0.0007675000000000001 0.46 AML other m 2023-12-12T01:34:36.66
IV.NRCA.HNE. ML:2.1 0.000755 0.48 AML other m 2023-12-12T01:34:36.66
IV.CESI.HHE. ML:2.2 0.0009564999999999999 1.14 AML other m 2023-12-12T01:34:37.81
IV.CESI.HNE. ML:2.2 0.0008615 1.16 AML other m 2023-12-12T01:34:37.82
IV.NRCA.HHN. ML:2.0 0.0006454999999999999 1.5 AML other m 2023-12-12T01:34:39.90
IV.NRCA.HNN. ML:2.1 0.0006639999999999999 1.5 AML other m 2023-12-12T01:34:39.90
IV.FDMO.HHE. ML:2.1 0.0004885 0.38 AML other m 2023-12-12T01:34:40.17
IV.MML1.EHE. ML:2.1 0.000446 0.3 AML other m 2023-12-12T01:34:41.60
IV.MML1.HNE. ML:2.1 0.00045900000000000004 0.3 AML other m 2023-12-12T01:34:41.60
IV.MML1.HNN. ML:1.9 0.0002795 0.66 AML other m 2023-12-12T01:34:42.15
IV.FDMO.HHN. ML:1.9 0.0002755 0.68 AML other m 2023-12-12T01:34:42.49
IV.MML1.EHN. ML:1.9 0.000257 0.18 AML other m 2023-12-12T01:34:42.15
IV.RM33.EHE. ML:2.2 0.0004485 0.18 AML other m 2023-12-12T01:34:42.73
IV.RM33.HNE. ML:2.2 0.000449 0.18 AML other m 2023-12-12T01:34:42.73
IV.CSP1.EHE. ML:2.6 0.00115 0.24 AML other m 2023-12-12T01:34:43.59
IV.CSP1.EHN. ML:2.4 0.000766 0.4 AML other m 2023-12-12T01:34:43.36
IV.SMA1.EHE. ML:2.4 0.000722 0.82 AML other m 2023-12-12T01:34:44.27
IV.RM33.HNN. ML:2.3 0.0005480000000000001 1.2 AML other m 2023-12-12T01:34:44.14
IV.RM33.EHN. ML:2.2 0.0004535 1.18 AML other m 2023-12-12T01:34:44.15
IV.SMA1.EHN. ML:2.2 0.000527 1.5 AML other m 2023-12-12T01:34:44.77
IV.GUMA.HHN. ML:2.3 0.0004555 0.18 AML other m 2023-12-12T01:34:45.81
IV.GUMA.HHE. ML:2.4 0.0006505 1.7 AML other m 2023-12-12T01:34:48.02
IV.SNTG.HHE. ML:1.6 0.0001014 1.22 AML other m 2023-12-12T01:34:48.21
IV.SNTG.HHN. ML:1.6 0.00008885 1.2 AML other m 2023-12-12T01:34:48.88
IV.CING.HHN. ML:2.0 0.00013285 0.68 AML other m 2023-12-12T01:34:50.17
IV.CING.HHE. ML:2.0 0.000155 1.32 AML other m 2023-12-12T01:34:51.02
IV.MTCE.HHE. ML:1.8 0.0000767 0.36 AML other m 2023-12-12T01:34:52.65
IV.ATMI.HHN. ML:2.2 0.00022999999999999998 0.78 AML other m 2023-12-12T01:34:52.34
IV.ATMI.HHE. ML:2.2 0.000242 0.42 AML other m 2023-12-12T01:34:53.53
IV.MTCE.HHN. ML:1.8 0.0000894 1.2 AML other m 2023-12-12T01:34:56.22
IV.GAVE.EHE. ML:2.6 0.004715903499999999 0.22 AML other m 2023-12-12T01:34:32.37
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