Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 12-01-2023 and time 18:17:49 (UTC) in region 6 km S Monte Cavallo (MC)

A magnitude ML 2.1 earthquake occured in region: 6 km S Monte Cavallo (MC), on

  • 12-01-2023 18:17:49 (UTC)
  • 12-01-2023 19:17:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9420, 12.9950 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
Monte Cavallo MC 6 145 145
Visso MC 8 1107 1252
Preci PG 8 724 1976
Sellano PG 8 1079 3055
Ussita MC 12 444 3499
Pieve Torina MC 12 1458 4957
Fiordimonte MC 13 202 5159
Castelsantangelo sul Nera MC 14 281 5440
Serravalle di Chienti MC 15 1070 6510
Cerreto di Spoleto PG 15 1075 7585
Pievebovigliana MC 15 866 8451
Muccia MC 16 915 9366
Fiastra MC 17 559 9925
Acquacanina MC 18 121 10046
Norcia PG 18 4957 15003
Bolognola MC 20 142 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km E of Foligno (57155 inhabitants)
51 Km NE of Terni (111501 inhabitants)
53 Km E of Perugia (166134 inhabitants)
66 Km W of Teramo (54892 inhabitants)
74 Km NW of L'Aquila (69753 inhabitants)
86 Km SW of Ancona (100861 inhabitants)
93 Km NE of Viterbo (67173 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 2.1 2023-01-12
18:17:49		 42.942 12.9947 12 2023-01-12
18:22:51		 Sala Sismica INGV-Roma 113500531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-12 18:17:49 ± 0.08
Latitude 42.9420 ± 0.0036
Longitude 12.9947 ± 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 113500531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 430
Semi-minor axis of confidence ellipse (meter) 278
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 254
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) 109
Number of associated phases, regardless of their use for origin computation 48
Number of defining phases 14
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.39930
Number of stations at which the event was observed 39
Number of stations from which data was used for origin computation 7
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 48
Type of magnitude ML
Reference to an origin 113500531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-12 18:22:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ZCCA.HHZ. 2023-01-12T18:18:57.09 3.0 undecidable manual Sg 8.43 0
IV.IMOL.HNZ. 2023-01-12T18:18:45.18 3.0 undecidable manual Sg 5.03 0
IV.PIEI.HHZ. 2023-01-12T18:18:14.07 3.0 undecidable manual S -0.08 0
IV.FIAM.HHZ. 2023-01-12T18:18:13.13 3.0 undecidable manual S -0.93 0
IV.PP3.EHZ. 2023-01-12T18:18:12.10 3.0 undecidable manual S -0.34 0
IV.CAFI.HHZ. 2023-01-12T18:18:06.58 3.0 negative manual P 0.18 0
IV.ARRO.EHE. 2023-01-12T18:18:04.30 0.3 undecidable manual S 205 44.3223 92 0.06 70
IV.NARO.HHZ. 2023-01-12T18:18:04.06 3.0 positive manual P -0.29 0
IV.PIEI.HHZ. 2023-01-12T18:18:03.05 3.0 negative manual P -0.34 0
IV.MPAG.EHZ. 2023-01-12T18:18:03.66 3.0 positive manual P -0.23 0
IV.ATVO.HHZ. 2023-01-12T18:18:02.16 3.0 undecidable manual P 0.01 0
IV.FIAM.HHZ. 2023-01-12T18:18:02.91 3.0 negative manual P -0.43 0
IV.ATPI.EHZ. 2023-01-12T18:18:02.95 3.0 positive manual P -0.18 0
IV.GIGS.HHZ. 2023-01-12T18:18:02.35 3.0 undecidable manual P -0.45 0
IV.ARVD.HHZ. 2023-01-12T18:18:01.07 3.0 negative manual P -0.05 0
IV.TERO.HHZ. 2023-01-12T18:18:00.95 3.0 undecidable manual P -0.06 0
IV.SSFR.HHZ. 2023-01-12T18:18:00.29 3.0 positive manual P -0.1 0
IV.FRON.EHZ. 2023-01-12T18:18:00.70 3.0 positive manual P -1.35 0
IV.ATFO.HHZ. 2023-01-12T18:18:00.52 3.0 negative manual P 0.01 0
IV.MURB.HHZ. 2023-01-12T18:17:59.58 3.0 positive manual P 0.08 0
IV.EL6.EHZ. 2023-01-12T18:17:58.26 3.0 positive manual P 0.08 0
IV.CESX.HHZ. 2023-01-12T18:17:58.96 3.0 negative manual P -0.11 0
IV.ARRO.EHE. 2023-01-12T18:17:58.10 0.3 undecidable manual P 205 44.3223 92 -0.09 69
IV.SMA1.EHZ. 2023-01-12T18:17:58.65 3.0 positive manual P 0.4 0
IV.RM33.EHZ. 2023-01-12T18:17:58.99 3.0 positive manual P -0.38 0
IV.MOMA.HHZ. 2023-01-12T18:17:57.45 3.0 negative manual P 0.32 0
IV.MF5.EHZ. 2023-01-12T18:17:57.92 3.0 positive manual P 0.63 0
IV.MML1.EHZ. 2023-01-12T18:17:57.39 0.3 undecidable manual S 354 19.0698 100 -0.13 72
IV.LNSS.HHZ. 2023-01-12T18:17:57.08 3.0 positive manual P -0.07 0
IV.ATCC.EHZ. 2023-01-12T18:17:57.55 3.0 positive manual P 0.13 0
IV.NRCA.HNZ. 2023-01-12T18:17:56.28 0.1 undecidable manual S 141 15.4734 107 -0.29 92
IV.MC2.EHZ. 2023-01-12T18:17:56.75 0.1 undecidable manual S 102 16.1727 105 0 98
IV.GUMA.HHZ. 2023-01-12T18:17:56.55 3.0 positive manual P 0.44 0
IV.FOSV.EHZ. 2023-01-12T18:17:56.04 3.0 undecidable manual P -2.05 0
IV.SNTG.HHZ. 2023-01-12T18:17:56.77 3.0 negative manual P 0.04 0
IV.ASSB.HHZ. 2023-01-12T18:17:55.83 3.0 positive manual P 0.01 0
IV.GAVE.EHZ. 2023-01-12T18:17:55.80 3.0 positive manual P 0.08 0
IV.CESI.HNZ. 2023-01-12T18:17:55.16 0.1 undecidable manual S 314 10.0788 127 -0.14 97
IV.FDMO.HHZ. 2023-01-12T18:17:55.78 0.1 undecidable manual S 36 12.876 116 -0.15 96
IV.MMO1.EHZ. 2023-01-12T18:17:55.69 3.0 negative manual P 0.11 0
IV.CSP1.EHZ. 2023-01-12T18:17:54.85 3.0 negative manual P -0.19 0
IV.FEMA.HNZ. 2023-01-12T18:17:54.43 0.1 undecidable manual S 63 4.995 151 0.03 100
IV.MC2.EHZ. 2023-01-12T18:17:54.03 0.3 undecidable manual P 102 16.1727 105 0.16 72
IV.MML1.EHZ. 2023-01-12T18:17:54.39 0.1 undecidable manual P 354 19.0698 100 0.07 96
IV.FDMO.HHZ. 2023-01-12T18:17:53.54 0.1 undecidable manual P 36 12.876 116 0.14 96
IV.NRCA.HNZ. 2023-01-12T18:17:53.76 0.1 undecidable manual P 141 15.4734 107 -0.01 98
IV.CESI.HNZ. 2023-01-12T18:17:53.16 0.1 undecidable manual P 314 10.0788 127 0.12 97
IV.FEMA.HNZ. 2023-01-12T18:17:52.71 0.1 undecidable manual P 63 4.995 151 0.2 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FEMA.HNE. ML:2.2 0.002355 0.48 AML other m 2023-01-12T18:17:54.56
IV.FEMA.HNN. ML:2.2 0.0019950000000000002 1.2 AML other m 2023-01-12T18:17:55.83
IV.CESI.HNE. ML:2.4 0.0026349999999999998 0.12 AML other m 2023-01-12T18:17:55.28
IV.CESI.HHE. ML:2.4 0.002605 0.12 AML other m 2023-01-12T18:17:55.34
IV.CESI.HHN. ML:2.3 0.002285 0.12 AML other m 2023-01-12T18:17:55.29
IV.CESI.HNN. ML:2.3 0.0020549999999999995 0.46 AML other m 2023-01-12T18:17:55.28
IV.FDMO.HHE. ML:2.4 0.00267 1.76 AML other m 2023-01-12T18:17:55.05
IV.FDMO.HHN. ML:2.4 0.0026349999999999998 1.8 AML other m 2023-01-12T18:17:56.03
IV.NRCA.HHE. ML:2.5 0.0028799999999999997 0.76 AML other m 2023-01-12T18:17:56.97
IV.NRCA.HNE. ML:2.5 0.002645 0.76 AML other m 2023-01-12T18:17:56.98
IV.NRCA.HHN. ML:2.5 0.00281 0.44 AML other m 2023-01-12T18:17:56.50
IV.NRCA.HNN. ML:2.5 0.002755 0.44 AML other m 2023-01-12T18:17:56.50
IV.MML1.HNN. ML:2.3 0.001495 1 AML other m 2023-01-12T18:17:57.33
IV.MML1.EHN. ML:2.3 0.0014849999999999998 1.02 AML other m 2023-01-12T18:17:57.33
IV.MML1.HNE. ML:2.4 0.00176 1.88 AML other m 2023-01-12T18:17:57.99
IV.MML1.EHE. ML:2.4 0.0017749999999999999 0.12 AML other m 2023-01-12T18:17:58.00
IV.MC2.EHN. ML:2.2 0.001405 0.42 AML other m 2023-01-12T18:17:58.53
IV.MC2.EHE. ML:2.3 0.001625 0.42 AML other m 2023-01-12T18:17:58.77
IV.CSP1.EHE. ML:2.6 0.002555 0.36 AML other m 2023-01-12T18:17:59.66
IV.CSP1.EHN. ML:2.8 0.003645 0.22 AML other m 2023-01-12T18:17:59.58
IV.MMO1.EHE. ML:1.9 0.000435 0.36 AML other m 2023-01-12T18:18:00.40
IV.GAVE.EHE. ML:2.2 0.000847 0.18 AML other m 2023-01-12T18:18:00.37
IV.ASSB.HHN. ML:2.1 0.0005545 0.4 AML other m 2023-01-12T18:18:00.68
IV.MMO1.EHN. ML:2.1 0.000693 1.02 AML other m 2023-01-12T18:18:00.07
IV.GUMA.HHE. ML:2.5 0.00149 0.2 AML other m 2023-01-12T18:18:01.69
IV.GAVE.EHN. ML:2.0 0.000568 0.94 AML other m 2023-01-12T18:18:01.17
IV.ASSB.HHE. ML:2.0 0.000451 1.34 AML other m 2023-01-12T18:18:01.00
IV.GUMA.HNE. ML:2.4 0.0011135 0.24 AML other m 2023-01-12T18:18:01.69
IV.SNTG.HHN. ML:1.7 0.0002045 0.96 AML other m 2023-01-12T18:18:02.50
IV.SNTG.HHE. ML:1.7 0.00020700000000000002 1.52 AML other m 2023-01-12T18:18:03.07
IV.GUMA.HHN. ML:2.1 0.0006175000000000001 0.42 AML other m 2023-01-12T18:18:03.18
IV.GUMA.HNN. ML:2.2 0.0006985 1.04 AML other m 2023-01-12T18:18:03.19
IV.ATCC.EHE. ML:1.9 0.00025 0.34 AML other m 2023-01-12T18:18:03.77
IV.ATCC.EHN. ML:1.8 0.00020700000000000002 0.64 AML other m 2023-01-12T18:18:03.78
IV.MOMA.HHN. ML:1.2 0.00006475 1.6 AML other m 2023-01-12T18:18:03.93
IV.MOMA.HHE. ML:1.8 0.00021500000000000002 1.76 AML other m 2023-01-12T18:18:04.04
IV.LNSS.HHN. ML:1.8 0.0002135 0.76 AML other m 2023-01-12T18:18:04.30
IV.MF5.EHE. ML:1.7 0.0001815 0.76 AML other m 2023-01-12T18:18:04.49
IV.LNSS.HHE. ML:1.9 0.000262 0.16 AML other m 2023-01-12T18:18:04.68
IV.EL6.EHN. ML:2.2 0.0004615 0.22 AML other m 2023-01-12T18:18:05.79
IV.SMA1.EHN. ML:1.6 0.0001275 0.44 AML other m 2023-01-12T18:18:06.37
IV.EL6.EHE. ML:2.1 0.000373 0.44 AML other m 2023-01-12T18:18:06.39
IV.MF5.EHN. ML:1.6 0.0001357 1.16 AML other m 2023-01-12T18:18:06.17
IV.CESX.HHN. ML:1.8 0.000168 1.22 AML other m 2023-01-12T18:18:07.92
IV.CESX.HHE. ML:1.8 0.000184 0.3 AML other m 2023-01-12T18:18:08.73
IV.SMA1.EHE. ML:1.8 0.000174 0.34 AML other m 2023-01-12T18:18:09.84
IV.ARVD.HHN. ML:1.5 0.00006315 0.72 AML other m 2023-01-12T18:18:10.56
IV.ARVD.HHE. ML:1.5 0.0000668 0.1 AML other m 2023-01-12T18:18:11.19
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