Earthquake with magnitude of ML 1.1 on date 04-12-2023 and time 18:08:54 (UTC) in region 2 km NE Sellano (PG)

A magnitude ML 1.1 earthquake occured in region: 2 km NE Sellano (PG), on

  • 04-12-2023 18:08:54 (UTC)
  • 04-12-2023 19:08:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9030, 12.9500 at 11 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
Sellano PG 2 1079 1079
Preci PG 8 724 1803
Cerreto di Spoleto PG 10 1075 2878
Monte Cavallo MC 11 145 3023
Visso MC 12 1107 4130
Ussita MC 16 444 4574
Vallo di Nera PG 16 364 4938
Trevi PG 17 8469 13407
Campello sul Clitunno PG 17 2442 15849
Castelsantangelo sul Nera MC 17 281 16130
Norcia PG 17 4957 21087
Pieve Torina MC 18 1458 22545
Fiordimonte MC 19 202 22747
Serravalle di Chienti MC 19 1070 23817

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km E of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
51 Km E of Perugia (166134 inhabitants)
67 Km W of Teramo (54892 inhabitants)
71 Km NW of L'Aquila (69753 inhabitants)
88 Km NE of Viterbo (67173 inhabitants)
92 Km SW of Ancona (100861 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 1.1 2023-12-04
18:08:54
42.9027 12.9498 11 2023-12-04
18:36:17
Sala Sismica INGV-Roma 123811191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-04 18:08:54 ± 0.05
Latitude 42.9027 ± 0.0027
Longitude 12.9498 ± 0.0049
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123811191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 396
Semi-minor axis of confidence ellipse (meter) 269
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 57
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 112
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.09803
Epicentral distance of station farthest from the epicenter (degree) 0.30667
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 123811191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-04 18:36:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LNSS.HHE. 2023-12-04T18:09:06.24 0.3 undecidable manual S 167 34.0437 50 -0.08 73
IV.CSP1.EHZ. 2023-12-04T18:09:05.21 0.6 undecidable manual S 44 29.4483 50 0.12 48
IV.ASSB.HHZ. 2023-12-04T18:09:04.53 0.1 undecidable manual S 303 28.2495 50 -0.25 95
IV.GAVE.EHN. 2023-12-04T18:09:03.70 0.6 undecidable manual S 191 23.754 50 0.12 49
IV.MC2.EHZ. 2023-12-04T18:09:02.38 0.6 undecidable manual S 87 19.4694 119 -0.01 50
IV.LNSS.HHE. 2023-12-04T18:09:01.31 0.3 undecidable manual P 167 34.0437 50 -0.09 72
IV.NRCA.HHZ. 2023-12-04T18:09:01.08 0.3 undecidable manual S 120 15.3735 125 -0.11 75
IV.FDMO.HHZ. 2023-12-04T18:09:01.88 0.3 undecidable manual S 37 18.5703 120 -0.24 72
IV.CESI.HHZ. 2023-12-04T18:09:00.27 0.6 undecidable manual S 342 11.877 132 0.03 51
IV.ASSB.HHZ. 2023-12-04T18:09:00.66 0.6 positive manual P 303 28.2495 50 0.15 48
IV.CSP1.EHZ. 2023-12-04T18:09:00.82 0.3 undecidable manual P 44 29.4483 50 0.13 72
IV.FDMO.HHZ. 2023-12-04T18:08:59.05 0.3 undecidable manual P 37 18.5703 120 0.07 75
IV.MC2.EHZ. 2023-12-04T18:08:59.27 0.3 undecidable manual P 87 19.4694 119 0.14 74
IT.MTCL.HGZ. 2023-12-04T18:08:59.78 0.1 undecidable manual S 22 10.878 134 -0.2 98
IV.GAVE.EHN. 2023-12-04T18:08:59.81 0.1 undecidable manual P 191 23.754 50 -0.01 100
IV.CESI.HHZ. 2023-12-04T18:08:58.12 0.1 positive manual P 342 11.877 132 0.23 98
IV.NRCA.HHZ. 2023-12-04T18:08:58.26 1.0 undecidable manual P 120 15.3735 125 -0.18 25
IT.MTCL.HGZ. 2023-12-04T18:08:57.97 0.3 undecidable manual P 22 10.878 134 0.23 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.1 0.00014450000000000002 0.38 AML other m 2023-12-04T18:09:00.52
IV.CESI.HHE. ML:0.9 0.0000809 1.22 AML other m 2023-12-04T18:09:00.38
IV.NRCA.HHN. ML:1.3 0.000192 0.12 AML other m 2023-12-04T18:09:01.23
IV.NRCA.HHE. ML:1.1 0.00010475 0.16 AML other m 2023-12-04T18:09:01.32
IV.FDMO.HHN. ML:0.7 0.00003925 1.26 AML other m 2023-12-04T18:09:02.17
IV.FDMO.HHE. ML:0.9 0.00006305 0.46 AML other m 2023-12-04T18:09:02.32
IV.CSP1.EHE. ML:1.1 0.00006176309 0.2176 AML other m 2023-12-04T18:09:05.92
IV.CSP1.EHN. ML:1.3 0.000094583855 0.1792 AML other m 2023-12-04T18:09:05.95
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