Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 17-12-2023 and time 15:22:24 (UTC) in region 1 km W Ussita (MC)

A magnitude ML 1.9 earthquake occured in region: 1 km W Ussita (MC), on

  • 17-12-2023 15:22:24 (UTC)
  • 17-12-2023 16:22:24 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9460, 13.1320 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
Ussita MC 1 444 444
Visso MC 4 1107 1551
Castelsantangelo sul Nera MC 6 281 1832
Bolognola MC 10 142 1974
Acquacanina MC 10 121 2095
Fiastra MC 10 559 2654
Preci PG 11 724 3378
Fiordimonte MC 11 202 3580
Monte Cavallo MC 12 145 3725
Pieve Torina MC 13 1458 5183
Pievebovigliana MC 14 866 6049
Muccia MC 17 915 6964
Montemonaco AP 17 604 7568
Montefortino FM 17 1178 8746
Sarnano MC 17 3264 12010
Norcia PG 17 4957 16967
Sellano PG 18 1079 18046
Amandola FM 19 3629 21675

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
57 Km NW of Teramo (54892 inhabitants)
58 Km NE of Terni (111501 inhabitants)
63 Km E of Perugia (166134 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
96 Km NW of Montesilvano (53738 inhabitants)
100 Km S of Fano (60888 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 1.9 2023-12-17
15:22:24		 42.9462 13.1318 10 2023-12-17
15:30:41		 Sala Sismica INGV-Roma 124111201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-17 15:22:24 ± 0.08
Latitude 42.9462 ± 0.0027
Longitude 13.1318 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124111201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 274
Semi-minor axis of confidence ellipse (meter) 244
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 29
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 53
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.24641
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 17
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 40
Type of magnitude ML
Reference to an origin 124111201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-17 15:30:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MPAG.EHZ. 2023-12-17T15:22:50.70 3.0 undecidable manual S 0.33 0
IV.PIEI.HHZ. 2023-12-17T15:22:50.20 3.0 undecidable manual S 0.03 0
IV.ATVO.HHZ. 2023-12-17T15:22:48.51 3.0 undecidable manual S -0.01 0
IV.ARVD.HHZ. 2023-12-17T15:22:44.69 3.0 undecidable manual S -0.27 0
IV.MGAB.HHZ. 2023-12-17T15:22:39.52 3.0 positive manual P 0.81 0
IV.PIEI.HHZ. 2023-12-17T15:22:38.38 3.0 positive manual P -0.28 0
IV.ATVO.HHZ. 2023-12-17T15:22:37.85 3.0 negative manual P 0.12 0
IV.SSFR.HHZ. 2023-12-17T15:22:35.29 3.0 negative manual P -0.08 0
IV.ATFO.HHZ. 2023-12-17T15:22:35.81 3.0 undecidable manual P -0.12 0
IV.MF5.EHZ. 2023-12-17T15:22:34.67 0.6 undecidable manual S 80 27.0507 50 0.56 43
IV.ATCC.EHZ. 2023-12-17T15:22:33.05 3.0 positive manual P 0.03 0
IV.TERO.HHZ. 2023-12-17T15:22:33.44 3.0 undecidable manual P -0.41 0
IV.FOSV.EHZ. 2023-12-17T15:22:33.16 3.0 undecidable manual P -0.12 0
IV.MNTT.EHZ. 2023-12-17T15:22:32.41 3.0 negative manual P 0.43 0
IV.RM33.EHZ. 2023-12-17T15:22:32.10 3.0 negative manual P -0.95 0
IV.GUMA.HHZ. 2023-12-17T15:22:32.62 0.6 undecidable manual S 52 20.9679 116 0.35 46
IV.CING.HHZ. 2023-12-17T15:22:32.93 3.0 positive manual P -0.35 0
IV.MML1.EHZ. 2023-12-17T15:22:32.49 0.3 undecidable manual S 325 22.6551 114 -0.31 70
IV.PF6.EHE. 2023-12-17T15:22:32.14 0.6 undecidable manual S 13 21.867 115 -0.41 45
IV.LNSS.HHZ. 2023-12-17T15:22:31.34 3.0 negative manual P 0.03 0
IV.CESI.HNZ. 2023-12-17T15:22:31.71 0.3 undecidable manual S 290 19.5693 117 -0.12 73
IV.SMA1.EHZ. 2023-12-17T15:22:31.29 3.0 positive manual P -0.16 0
VM.SRNA.HNE.01 2023-12-17T15:22:31.30 0.3 undecidable manual S 54 16.9719 121 0.27 71
IV.ASSB.HHZ. 2023-12-17T15:22:31.51 3.0 positive manual P -0.1 0
IV.MMO1.EHZ. 2023-12-17T15:22:30.72 0.6 undecidable manual S 108 16.6722 121 -0.24 48
7F.SIB2.EHE. 2023-12-17T15:22:30.16 0.3 undecidable manual S 114 15.2736 123 -0.38 69
IV.SAP2.EHZ. 2023-12-17T15:22:30.09 0.1 negative manual P 52 27.3504 50 0.11 96
IV.CSP1.EHE. 2023-12-17T15:22:30.94 0.3 undecidable manual S 20 17.1717 120 -0.17 72
IV.GAVE.EHZ. 2023-12-17T15:22:30.69 3.0 negative manual P 0.17 0
IV.NRCA.HHZ. 2023-12-17T15:22:29.52 0.3 undecidable manual S 186 12.5763 129 -0.27 71
IV.MF5.EHZ. 2023-12-17T15:22:29.93 0.1 positive manual P 80 27.0507 50 0 98
IV.SNTG.HHZ. 2023-12-17T15:22:29.72 3.0 undecidable manual P -1.75 0
7F.SIB3.EHE. 2023-12-17T15:22:29.88 0.3 undecidable manual S 125 13.7751 126 -0.22 72
IV.FDMO.HHZ. 2023-12-17T15:22:29.33 0.1 undecidable manual S 340 10.6782 133 0.05 100
IT.MTCL.HGZ. 2023-12-17T15:22:29.58 0.6 undecidable manual S 296 11.9769 130 -0.05 50
7F.SIB1.EHE. 2023-12-17T15:22:29.92 0.3 undecidable manual S 117 12.5763 128 0.13 73
IV.CSP1.EHE. 2023-12-17T15:22:28.17 0.3 undecidable manual P 20 17.1717 120 -0.02 74
VM.SRNA.HNE.01 2023-12-17T15:22:28.10 0.3 undecidable manual P 54 16.9719 121 -0.05 74
IV.MML1.EHZ. 2023-12-17T15:22:28.96 0.1 negative manual P 325 22.6551 114 -0.21 95
IV.FEMA.HNZ. 2023-12-17T15:22:28.90 0.1 undecidable manual S 285 6.8931 145 0.47 92
IV.PF6.EHE. 2023-12-17T15:22:28.74 0.1 undecidable manual P 13 21.867 115 -0.28 93
IV.MC2.EHZ. 2023-12-17T15:22:28.53 0.3 undecidable manual S 130 6.0939 149 0.27 72
IV.CESI.HNZ. 2023-12-17T15:22:28.53 0.3 undecidable manual P 290 19.5693 117 -0.08 73
IV.GUMA.HHZ. 2023-12-17T15:22:28.95 0.1 positive manual P 52 20.9679 116 0.09 97
IT.MTCL.HGZ. 2023-12-17T15:22:27.39 0.1 negative manual P 296 11.9769 130 0.06 100
7F.SIB1.EHE. 2023-12-17T15:22:27.52 0.1 undecidable manual P 117 12.5763 128 0.09 99
IV.NRCA.HHZ. 2023-12-17T15:22:27.36 0.1 undecidable manual P 186 12.5763 129 -0.07 99
IV.MMO1.EHZ. 2023-12-17T15:22:27.98 0.1 positive manual P 108 16.6722 121 -0.12 97
7F.SIB2.EHE. 2023-12-17T15:22:27.70 0.1 undecidable manual P 114 15.2736 123 -0.16 97
7F.SIB3.EHE. 2023-12-17T15:22:27.48 0.3 undecidable manual P 125 13.7751 126 -0.13 73
IV.FDMO.HHZ. 2023-12-17T15:22:27.18 0.1 undecidable manual P 340 10.6782 133 0.05 100
IV.FEMA.HNZ. 2023-12-17T15:22:26.95 0.1 negative manual P 285 6.8931 145 0.31 95
IV.MC2.EHZ. 2023-12-17T15:22:26.86 0.1 undecidable manual P 130 6.0939 149 0.31 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FEMA.HNN. ML:2.0 0.00155 1.76 AML other m 2023-12-17T15:22:28.95
IV.FDMO.HHE. ML:2.0 0.0012050000000000001 0.24 AML other m 2023-12-17T15:22:29.62
IV.FDMO.HHN. ML:2.1 0.001665 0.26 AML other m 2023-12-17T15:22:29.65
IV.NRCA.HHN. ML:2.2 0.001765 0.86 AML other m 2023-12-17T15:22:29.23
IV.FEMA.HNE. ML:2.1 0.0019850000000000002 0.16 AML other m 2023-12-17T15:22:29.70
IV.NRCA.HHE. ML:2.2 0.001665 0.14 AML other m 2023-12-17T15:22:30.94
IV.MMO1.EHE. ML:2.0 0.0009105 0.16 AML other m 2023-12-17T15:22:31.13
IV.MMO1.EHN. ML:2.2 0.001295 0.98 AML other m 2023-12-17T15:22:31.76
IV.CESI.HHE. ML:2.3 0.0014235 1.42 AML other m 2023-12-17T15:22:31.20
IV.CESI.HHN. ML:2.5 0.0021500000000000004 0.3 AML other m 2023-12-17T15:22:32.21
IV.MML1.EHN. ML:2.1 0.0008895 0.18 AML other m 2023-12-17T15:22:32.81
IV.MML1.HNN. ML:2.1 0.000857 0.18 AML other m 2023-12-17T15:22:32.81
IV.GUMA.HHE. ML:2.1 0.0009055 1.42 AML other m 2023-12-17T15:22:32.12
IV.GUMA.HHN. ML:2.1 0.0008620000000000001 1.46 AML other m 2023-12-17T15:22:33.86
IV.MML1.HNE. ML:1.8 0.0003755 1 AML other m 2023-12-17T15:22:33.31
IV.MML1.EHE. ML:1.8 0.00037849999999999993 0.14 AML other m 2023-12-17T15:22:33.32
IV.SAP2.EHN. ML:2.6 0.00199 1.84 AML other m 2023-12-17T15:22:35.97
IV.SAP2.EHE. ML:1.9 0.00039150000000000003 0.52 AML other m 2023-12-17T15:22:35.35
IV.GAVE.EHE. ML:2.0 0.0003675 0.38 AML other m 2023-12-17T15:22:36.24
IV.ASSB.HHE. ML:2.0 0.000377 0.4 AML other m 2023-12-17T15:22:37.52
IV.LNSS.HHE. ML:1.8 0.00021200000000000003 0.18 AML other m 2023-12-17T15:22:38.19
IV.SMA1.EHE. ML:1.6 0.00014250000000000002 1.32 AML other m 2023-12-17T15:22:38.91
IV.LNSS.HHN. ML:1.8 0.00020500000000000002 0.7 AML other m 2023-12-17T15:22:38.97
IV.GAVE.EHN. ML:2.0 0.000388 0.28 AML other m 2023-12-17T15:22:39.00
IV.SMA1.EHN. ML:1.6 0.000161 0.9 AML other m 2023-12-17T15:22:39.29
IV.ASSB.HHN. ML:2.0 0.00031 1.12 AML other m 2023-12-17T15:22:40.65
IV.FOSV.EHE. ML:1.7 0.0001395 0.4 AML other m 2023-12-17T15:22:40.53
IV.ATCC.EHE. ML:1.9 0.000211 0.34 AML other m 2023-12-17T15:22:40.40
IV.RM33.EHE. ML:1.6 0.0001026 1.1 AML other m 2023-12-17T15:22:40.14
IV.CING.HHE. ML:1.6 0.00010800000000000001 0.24 AML other m 2023-12-17T15:22:40.70
IV.FOSV.EHN. ML:1.6 0.0000995 0.2 AML other m 2023-12-17T15:22:40.71
IV.TERO.HHE. ML:1.7 0.000123 1.18 AML other m 2023-12-17T15:22:42.01
IV.CING.HHN. ML:1.6 0.0001055 0.42 AML other m 2023-12-17T15:22:42.39
IV.RM33.EHN. ML:1.5 0.0000815 0.58 AML other m 2023-12-17T15:22:42.00
IV.TERO.HHN. ML:1.8 0.00014199999999999998 1.24 AML other m 2023-12-17T15:22:42.90
IV.ATCC.EHN. ML:1.8 0.00017099999999999998 1.6 AML other m 2023-12-17T15:22:43.94
IV.ARVD.HHE. ML:1.7 0.00008915000000000001 1.58 AML other m 2023-12-17T15:22:45.82
IV.ARVD.HHN. ML:1.5 0.00006165 0.72 AML other m 2023-12-17T15:22:45.27
IV.MGAB.HHN. ML:1.6 0.00005695 0.7 AML other m 2023-12-17T15:22:52.18
IV.MGAB.HHE. ML:1.7 0.0000625 0.82 AML other m 2023-12-17T15:22:53.05
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