Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 16-12-2023 and time 15:53:04 (Italy) in region 6 km NW Sellano (PG)

A magnitude ML 1.8 earthquake occured in region: 6 km NW Sellano (PG), on

  • 16-12-2023 14:53:04 (UTC)
  • 16-12-2023 15:53:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9420, 12.9040 at 12 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
Sellano PG 6 1079 1079
Monte Cavallo MC 10 145 1224
Preci PG 13 724 1948
Cerreto di Spoleto PG 14 1075 3023
Trevi PG 15 8469 11492
Serravalle di Chienti MC 15 1070 12562
Visso MC 15 1107 13669
Foligno PG 16 57155 70824
Pieve Torina MC 17 1458 72282
Campello sul Clitunno PG 17 2442 74724
Valtopina PG 18 1398 76122
Fiordimonte MC 19 202 76324
Ussita MC 19 444 76768
Vallo di Nera PG 19 364 77132
Muccia MC 19 915 78047
Spello PG 20 8645 86692
Pievebovigliana MC 20 866 87558

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km E of Foligno (57155 inhabitants)
46 Km E of Perugia (166134 inhabitants)
47 Km NE of Terni (111501 inhabitants)
73 Km W of Teramo (54892 inhabitants)
77 Km NW of L'Aquila (69753 inhabitants)
88 Km NE of Viterbo (67173 inhabitants)
90 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 1.8 2023-12-16
14:53:04		 42.9423 12.9038 12 2023-12-16
15:00:35		 Sala Sismica INGV-Roma 124087171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-16 14:53:04 ± 0.07
Latitude 42.9423 ± 0.0045
Longitude 12.9038 ± 0.0049
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124087171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 425
Semi-minor axis of confidence ellipse (meter) 284
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) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.40919
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 124087171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-16 15:00:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2023-12-16T14:53:20.43 3.0 undecidable manual S -3.92 0
IV.MF5.EHZ. 2023-12-16T14:53:13.78 0.6 undecidable manual P 83 45.4212 91 0.9 36
IV.ASSB.HHZ. 2023-12-16T14:53:12.96 0.1 undecidable manual S 299 22.755 95 -0.05 97
IV.LNSS.HHZ. 2023-12-16T14:53:11.84 0.3 undecidable manual P 164 39.2274 92 -0.09 70
IV.FDMO.HHZ. 2023-12-16T14:53:11.62 0.3 undecidable manual S 55 18.1707 99 -0.17 71
IV.MMO1.EHZ. 2023-12-16T14:53:11.17 0.1 undecidable manual P 98 34.6431 92 -0.06 95
IV.SNTG.HHZ. 2023-12-16T14:53:11.17 0.1 undecidable manual P 5 34.8429 92 -0.08 94
IV.CSP1.EHZ. 2023-12-16T14:53:10.48 0.1 undecidable manual P 56 29.5482 93 0.05 96
IV.GAVE.EHZ. 2023-12-16T14:53:10.16 0.1 positive manual P 182 27.75 93 0 97
IV.CESI.HHZ. 2023-12-16T14:53:09.16 0.1 undecidable manual S 0 6.993 140 0 100
IV.MML1.EHZ. 2023-12-16T14:53:09.02 0.1 undecidable manual P 16 19.7691 97 0.09 97
IV.ASSB.HHZ. 2023-12-16T14:53:09.38 0.1 undecidable manual P 299 22.755 95 -0.02 97
IT.MTCL.HGZ. 2023-12-16T14:53:09.48 0.1 undecidable manual S 54 9.6792 127 -0.19 96
IV.NRCA.HHZ. 2023-12-16T14:53:09.00 0.1 undecidable manual P 125 20.9679 96 -0.11 96
IV.FDMO.HHZ. 2023-12-16T14:53:08.71 0.1 undecidable manual P 55 18.1707 99 0.02 99
IV.CESI.HHZ. 2023-12-16T14:53:07.34 0.1 undecidable manual P 0 6.993 140 0.17 97
IT.MTCL.HGZ. 2023-12-16T14:53:07.54 0.1 undecidable manual P 54 9.6792 127 0.07 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.9 0.0009965 0.16 AML other m 2023-12-16T14:53:09.33
IV.CESI.HHE. ML:1.8 0.0007685 0.32 AML other m 2023-12-16T14:53:09.26
IT.MTCL.HGE. ML:3.9 0.10015 0.5 AML other m 2023-12-16T14:53:09.77
IT.MTCL.HGN. ML:3.9 0.0834 0.12 AML other m 2023-12-16T14:53:09.96
IV.FDMO.HHN. ML:1.9 0.0006039999999999999 0.12 AML other m 2023-12-16T14:53:11.76
IV.FDMO.HHE. ML:1.9 0.000614 0.1 AML other m 2023-12-16T14:53:12.07
IV.MML1.HNN. ML:1.8 0.000447 0.18 AML other m 2023-12-16T14:53:12.47
IV.MML1.EHE. ML:1.8 0.000457 0.16 AML other m 2023-12-16T14:53:12.51
IV.MML1.HNE. ML:1.8 0.0004395 0.16 AML other m 2023-12-16T14:53:12.51
IV.MML1.EHN. ML:1.8 0.0004505 0.6 AML other m 2023-12-16T14:53:12.47
IV.NRCA.HHN. ML:1.6 0.00026250000000000004 0.12 AML other m 2023-12-16T14:53:13.29
IV.NRCA.HHE. ML:1.6 0.0002745 1.34 AML other m 2023-12-16T14:53:13.97
IV.ASSB.HHE. ML:1.4 0.00017199999999999998 1.5 AML other m 2023-12-16T14:53:13.20
IV.GAVE.EHN. ML:1.9 0.0003815 0.76 AML other m 2023-12-16T14:53:14.30
IV.GAVE.EHE. ML:2.0 0.0005340000000000001 0.14 AML other m 2023-12-16T14:53:14.71
IV.ASSB.HHN. ML:1.4 0.0001665 0.74 AML other m 2023-12-16T14:53:14.39
IV.CSP1.EHN. ML:2.0 0.000428 0.32 AML other m 2023-12-16T14:53:15.16
IV.CSP1.EHE. ML:2.0 0.00047799999999999996 0.58 AML other m 2023-12-16T14:53:15.68
IV.LNSS.HHN. ML:1.8 0.0002095 1.78 AML other m 2023-12-16T14:53:18.96
IV.LNSS.HHE. ML:1.8 0.00020950000000000002 0.9 AML other m 2023-12-16T14:53:18.86
IV.CESI.HNE. ML:1.7 0.00065161225 0.0768 AML other m 2023-12-16T14:53:09.26
IV.CESI.HNN. ML:1.9 0.00094791755 0.1472 AML other m 2023-12-16T14:53:09.25
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