Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 06-01-2023 and time 17:51:55 (Italy) in region 6 km S Monte Cavallo (MC)

A magnitude ML 1.2 earthquake occured in region: 6 km S Monte Cavallo (MC), on

  • 06-01-2023 16:51:55 (UTC)
  • 06-01-2023 17:51:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9420, 12.9990 at 12 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 7 1107 1252
Preci PG 8 724 1976
Sellano PG 8 1079 3055
Ussita MC 11 444 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 17 121 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)
73 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
Bulletin
Rev1000 		ML 1.2 2023-01-06
16:51:55		 42.9423 12.999 12 2024-03-01
17:18:05		 Bollettino Sismico Italiano INGV 116943731
Reviewed
Rev100 		ML 1.2 2023-01-06
16:51:55		 42.9412 13.0047 12 2023-01-06
17:17:18		 Sala Sismica INGV-Roma 113351021
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-06 16:51:55 ± 0.05
Latitude 42.9423 ± 0.0027
Longitude 12.9990 ± 0.0037
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116943731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 158
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 70
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 49
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.04227
Epicentral distance of station farthest from the epicenter (degree) 0.39750
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 116943731
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-05-01 18:28:01

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 113351021
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-06 17:17:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LNSS.HNZ. 2023-01-06T16:52:08.11 0.6 undecidable manual S 175 37.8288 92 0.07 47
IV.ASSB.HHZ. 2023-01-06T16:52:06.03 0.3 undecidable manual S 292 29.748 93 0.14 72
IV.GUMA.HHZ. 2023-01-06T16:52:06.37 0.6 undecidable manual S 64 30.3474 93 0.32 45
IV.CSP1.EHZ. 2023-01-06T16:52:04.10 0.1 undecidable manual S 45 23.5542 95 -0.13 95
IV.PF6.EHN. 2023-01-06T16:52:04.85 0.6 undecidable manual S 36 26.8509 94 -0.27 46
IV.SMA1.EHN. 2023-01-06T16:52:03.90 0.1 undecidable manual P 142 44.1225 92 0.19 91
IV.MF5.EHN. 2023-01-06T16:52:03.14 0.1 undecidable manual P 82 37.7289 92 0.42 87
IV.MOMA.HNZ. 2023-01-06T16:52:03.14 0.6 undecidable manual P 246 38.1285 92 0.36 45
IV.MML1.EHZ. 2023-01-06T16:52:03.00 0.1 undecidable manual S 353 19.1697 98 -0.06 97
IV.SNTG.HHZ. 2023-01-06T16:52:02.24 1.0 undecidable manual P 352 35.0427 92 -0.06 23
IV.ATCC.EHE. 2023-01-06T16:52:02.81 0.1 undecidable manual P 313 39.627 92 -0.21 90
IV.MC2.EHZ. 2023-01-06T16:52:02.15 0.3 undecidable manual S 102 15.7731 105 -0.05 74
IV.LNSS.HNZ. 2023-01-06T16:52:02.48 0.1 undecidable manual P 175 37.8288 92 -0.25 90
IV.GUMA.HHZ. 2023-01-06T16:52:01.73 1.0 undecidable manual P 64 30.3474 93 0.14 23
IV.GAVE.EHN. 2023-01-06T16:52:01.33 0.1 undecidable manual P 197 29.0487 93 -0.05 95
IV.FDMO.HHZ. 2023-01-06T16:52:01.15 0.1 undecidable manual S 34 12.6762 115 -0.26 95
IV.NRCA.HHZ. 2023-01-06T16:52:01.69 0.1 undecidable manual S 142 15.2736 106 -0.37 92
IV.ASSB.HHZ. 2023-01-06T16:52:01.49 0.3 undecidable manual P 292 29.748 93 -0.01 71
IV.MMO1.EHN. 2023-01-06T16:52:01.39 0.1 undecidable manual P 100 27.0507 94 0.31 91
IV.PF6.EHN. 2023-01-06T16:52:00.90 0.1 undecidable manual P 36 26.8509 94 -0.15 94
7F.SIB1.EHE. 2023-01-06T16:52:00.33 0.1 undecidable manual P 103 22.6551 96 -0.07 97
7F.SIB3.EHN. 2023-01-06T16:52:00.48 0.1 undecidable manual P 109 23.2545 95 -0.01 98
IV.CSP1.EHZ. 2023-01-06T16:52:00.53 0.1 undecidable manual P 45 23.5542 95 0 98
IV.CESI.HHZ. 2023-01-06T16:52:00.97 0.1 undecidable manual S 312 10.3785 125 0.1 99
IV.MC2.EHZ. 2023-01-06T16:51:59.46 0.3 undecidable manual P 102 15.7731 105 0.1 73
IV.MML1.EHZ. 2023-01-06T16:51:59.88 0.1 undecidable manual P 353 19.1697 98 0.02 98
IT.MTCL.HGZ. 2023-01-06T16:51:59.77 0.1 undecidable manual S 0 5.6943 147 -0.24 96
IV.FEMA.HNZ. 2023-01-06T16:51:59.98 0.1 undecidable manual S 62 4.6953 153 0.11 98
IV.NRCA.HHZ. 2023-01-06T16:51:59.14 0.1 undecidable manual P 142 15.2736 106 -0.14 96
IV.FEMA.HNZ. 2023-01-06T16:51:58.17 0.1 undecidable manual P 62 4.6953 153 0.16 98
IV.CESI.HHZ. 2023-01-06T16:51:58.79 0.1 undecidable manual P 312 10.3785 125 0.19 97
IV.FDMO.HHZ. 2023-01-06T16:51:58.96 0.6 undecidable manual P 34 12.6762 115 0.06 49
IT.MTCL.HGZ. 2023-01-06T16:51:58.14 0.1 undecidable manual P 0 5.6943 147 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.2 0.00016 0.12 AML other m 2023-01-06T16:52:01.06
IV.CESI.HHN. ML:1.2 0.00017549999999999998 0.44 AML other m 2023-01-06T16:52:01.07
IV.FDMO.HHN. ML:1.2 0.0001505 0.2 AML other m 2023-01-06T16:52:01.29
IV.NRCA.HHN. ML:1.5 0.00027249999999999996 0.1 AML other m 2023-01-06T16:52:01.81
IV.FDMO.HHE. ML:1.3 0.0001795 1.14 AML other m 2023-01-06T16:52:01.37
IV.MML1.EHN. ML:1.0 0.00006575 0.26 AML other m 2023-01-06T16:52:03.40
IV.MML1.EHE. ML:1.0 0.0000667 0.68 AML other m 2023-01-06T16:52:03.47
IV.NRCA.HHE. ML:1.2 0.00013700000000000002 0.1 AML other m 2023-01-06T16:52:03.70
IV.CSP1.EHE. ML:1.5 0.000174 0.38 AML other m 2023-01-06T16:52:04.88
IV.CSP1.EHN. ML:1.3 0.0001325 0.68 AML other m 2023-01-06T16:52:05.44
IV.ASSB.HHN. ML:0.6 0.00002115 0.82 AML other m 2023-01-06T16:52:06.59
IV.ASSB.HHE. ML:0.8 0.0000309 0.56 AML other m 2023-01-06T16:52:06.10
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