Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.4 on date 11-01-2023 and time 16:12:09 (UTC) in region 2 km NW Ussita (MC)

A magnitude ML 0.4 earthquake occured in region: 2 km NW Ussita (MC), on

  • 11-01-2023 16:12:09 (UTC)
  • 11-01-2023 17:12:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9580, 13.1210 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.

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
Ussita MC 2 444 444
Visso MC 4 1107 1551
Castelsantangelo sul Nera MC 8 281 1832
Acquacanina MC 9 121 1953
Fiastra MC 9 559 2512
Fiordimonte MC 9 202 2714
Bolognola MC 10 142 2856
Monte Cavallo MC 10 145 3001
Preci PG 11 724 3725
Pieve Torina MC 11 1458 5183
Pievebovigliana MC 12 866 6049
Muccia MC 15 915 6964
Sarnano MC 17 3264 10228
Sellano PG 18 1079 11307
Montefortino FM 18 1178 12485
Montemonaco AP 18 604 13089
Norcia PG 19 4957 18046
Serravalle di Chienti MC 19 1070 19116
Amandola FM 19 3629 22745

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
58 Km NW of Teramo (54892 inhabitants)
59 Km NE of Terni (111501 inhabitants)
62 Km E of Perugia (166134 inhabitants)
71 Km NW of L'Aquila (69753 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
98 Km NW of Montesilvano (53738 inhabitants)
99 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 0.4 2023-01-11
16:12:09		 42.9585 13.1207 12 2023-01-11
16:30:34		 Sala Sismica INGV-Roma 113476301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-11 16:12:09 ± 0.05
Latitude 42.9585 ± 0.0027
Longitude 13.1207 ± 0.0037
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 113476301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 377
Semi-minor axis of confidence ellipse (meter) 65
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 45
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.05216
Epicentral distance of station farthest from the epicenter (degree) 0.18976
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 113476301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-11 16:30:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MML1.EHZ. 2023-01-11T16:12:17.79 0.3 undecidable manual S 325 21.0678 96 -0.09 73
IV.CESI.HHZ. 2023-01-11T16:12:17.11 0.3 undecidable manual S 286 18.2706 99 -0.05 73
IV.CSP1.EHZ. 2023-01-11T16:12:16.53 0.3 undecidable manual S 25 16.2726 103 -0.1 74
7F.SIB2.EHZ. 2023-01-11T16:12:16.53 0.3 undecidable manual S 117 16.6722 102 -0.2 71
7F.SIB3.EHZ. 2023-01-11T16:12:16.08 0.3 undecidable manual S 127 15.2736 106 -0.29 70
IV.MMO1.EHZ. 2023-01-11T16:12:16.97 0.3 undecidable manual S 111 17.9709 100 -0.11 72
7F.SIB1.EHZ. 2023-01-11T16:12:16.06 0.3 undecidable manual S 120 14.0748 110 0 74
IV.NRCA.HHZ. 2023-01-11T16:12:15.86 0.3 undecidable manual S 182 13.875 110 -0.16 71
IV.MMO1.EHZ. 2023-01-11T16:12:14.06 0.1 undecidable manual P 111 17.9709 100 0.06 97
IV.MC2.EHZ. 2023-01-11T16:12:14.91 0.3 undecidable manual S 133 7.5813 137 0.28 72
IT.MTCL.HGZ. 2023-01-11T16:12:14.98 0.3 undecidable manual S 292 10.5783 123 -0.26 71
IV.CESI.HHZ. 2023-01-11T16:12:14.08 0.1 undecidable manual P 286 18.2706 99 0.03 98
IV.MML1.EHZ. 2023-01-11T16:12:14.70 0.3 undecidable manual P 325 21.0678 96 0.23 70
IV.FDMO.HHZ. 2023-01-11T16:12:14.72 0.3 undecidable manual S 343 9.0798 130 -0.19 73
IV.FEMA.HNZ. 2023-01-11T16:12:14.38 0.3 undecidable manual S 274 5.7942 147 0.05 75
7F.SIB1.EHZ. 2023-01-11T16:12:13.59 0.1 undecidable manual P 120 14.0748 110 0.17 96
IV.NRCA.HHZ. 2023-01-11T16:12:13.37 0.1 undecidable manual P 182 13.875 110 -0.02 98
IV.CSP1.EHZ. 2023-01-11T16:12:13.77 0.1 undecidable manual P 25 16.2726 103 0.02 98
7F.SIB2.EHZ. 2023-01-11T16:12:13.77 0.1 undecidable manual P 117 16.6722 102 -0.03 98
7F.SIB3.EHZ. 2023-01-11T16:12:13.65 0.6 undecidable manual P 127 15.2736 106 0.06 49
IV.FDMO.HHZ. 2023-01-11T16:12:12.74 0.1 undecidable manual P 343 9.0798 130 -0.01 100
IV.FEMA.HNZ. 2023-01-11T16:12:12.56 0.3 undecidable manual P 274 5.7942 147 0.14 74
IV.MC2.EHZ. 2023-01-11T16:12:12.87 0.1 undecidable manual P 133 7.5813 137 0.28 95
IT.MTCL.HGZ. 2023-01-11T16:12:12.91 0.3 undecidable manual P 292 10.5783 123 -0.03 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.3 0.00002318272 0.128 AML other m 2023-01-11T16:12:14.98
IV.FDMO.HHN. ML:0.6 0.00004844238 0.1792 AML other m 2023-01-11T16:12:14.82
IV.NRCA.HHE. ML:0.5 0.00002841291 0.1792 AML other m 2023-01-11T16:12:16.03
IV.NRCA.HHN. ML:0.7 0.000044870245000000006 0.1152 AML other m 2023-01-11T16:12:17.32
IV.CSP1.EHE. ML:0.6 0.000029284549999999997 0.128 AML other m 2023-01-11T16:12:16.81
IV.CSP1.EHN. ML:0.6 0.00003325641 0.0896 AML other m 2023-01-11T16:12:16.76
IV.MMO1.EHE. ML:0.3 0.000015874416999999998 0.1024 AML other m 2023-01-11T16:12:17.14
IV.MMO1.EHN. ML:0.3 0.000016782735 0.1024 AML other m 2023-01-11T16:12:17.12
IV.CESI.HHE. ML:0.1 0.000012251323550000001 0.0896 AML other m 2023-01-11T16:12:17.45
IV.CESI.HHN. ML:0.3 0.000014677463 0.1792 AML other m 2023-01-11T16:12:17.26
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