Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.4 on date 12-01-2023 and time 18:22:01 (UTC) in region 5 km S Monte Cavallo (MC)

A magnitude ML 0.4 earthquake occured in region: 5 km S Monte Cavallo (MC), on

  • 12-01-2023 18:22:01 (UTC)
  • 12-01-2023 19:22:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9470, 12.9930 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
Monte Cavallo MC 5 145 145
Visso MC 8 1107 1252
Sellano PG 8 1079 2331
Preci PG 8 724 3055
Pieve Torina MC 12 1458 4513
Ussita MC 12 444 4957
Fiordimonte MC 13 202 5159
Castelsantangelo sul Nera MC 14 281 5440
Serravalle di Chienti MC 14 1070 6510
Pievebovigliana MC 15 866 7376
Cerreto di Spoleto PG 15 1075 8451
Muccia MC 16 915 9366
Fiastra MC 17 559 9925
Acquacanina MC 18 121 10046
Norcia PG 19 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)
52 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 0.4 2023-01-12
18:22:01		 42.947 12.9932 10 2023-01-12
18:45:22		 Sala Sismica INGV-Roma 113501171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-12 18:22:01 ± 0.14
Latitude 42.9470 ± 0.0054
Longitude 12.9932 ± 0.0086
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 113501171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 597
Semi-minor axis of confidence ellipse (meter) 457
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 46
Circular confidence region, given by single value of horizontal uncertainty (meter) 600.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.34084
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 9
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 113501171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-12 18:45:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
1J.FX14.HHZ.00 2023-01-12T18:23:30.59 3.0 positive manual Pg 21.15 0
IV.MTGR.HHZ. 2023-01-12T18:23:13.97 3.0 undecidable manual Pg 6.49 0
RF.GEPF.HHZ. 2023-01-12T18:23:07.18 3.0 undecidable manual Sn 14.84 0
IV.MCRV.HHZ. 2023-01-12T18:23:05.44 3.0 undecidable manual Sn -5.3 0
CR.STON.BHZ. 2023-01-12T18:23:04.06 3.0 undecidable manual Pg 35.720001 0
IV.CRJA.HNZ. 2023-01-12T18:23:03.68 3.0 undecidable manual Pn -4.76 0
OX.MARN.HHZ. 2023-01-12T18:22:55.12 3.0 undecidable manual Sn 1.07 0
GU.CARD.HHZ. 2023-01-12T18:22:52.04 3.0 undecidable manual Sg 1.77 0
CH.BERNI.HHZ. 2023-01-12T18:22:44.77 3.0 undecidable manual Pg 8.7 0
IV.MCRV.HHZ. 2023-01-12T18:22:42.85 3.0 undecidable manual Pg 11.95 0
IV.FIAM.HHZ. 2023-01-12T18:22:38.75 3.0 undecidable manual Sg 2.97 0
IV.IMOL.HNZ. 2023-01-12T18:22:28.20 3.0 undecidable manual Sn -4.77 0
IV.MMO1.EHZ. 2023-01-12T18:22:23.83 3.0 undecidable manual Sn -0.33 0
IV.LRP.EHZ. 2023-01-12T18:22:15.55 3.0 negative manual Pn -2.25 0
IV.MOMA.HHE. 2023-01-12T18:22:14.43 0.6 undecidable manual S 245 37.8288 50 0.25 46
IV.CSP1.EHZ. 2023-01-12T18:22:09.93 0.3 undecidable manual S 47 23.5542 113 -0.22 72
IV.MC2.EHZ. 2023-01-12T18:22:08.08 0.3 undecidable manual S 104 16.3725 121 0.14 74
IV.MML1.EHZ. 2023-01-12T18:22:08.24 0.3 undecidable manual S 355 18.5703 118 -0.35 71
IV.MOMA.HHE. 2023-01-12T18:22:08.38 1.0 undecidable manual P 245 37.8288 50 -0.37 23
IV.NRCA.HHZ. 2023-01-12T18:22:07.30 0.3 undecidable manual S 142 15.9729 121 -0.52 68
IV.CESI.HHE. 2023-01-12T18:22:06.08 0.3 undecidable manual S 312 9.6792 135 0 77
IV.FDMO.HHZ. 2023-01-12T18:22:06.80 0.6 undecidable manual S 38 12.5763 128 -0.03 51
IV.CSP1.EHZ. 2023-01-12T18:22:06.24 0.1 undecidable manual P 47 23.5542 113 -0.18 97
IV.CSNT.HHZ. 2023-01-12T18:22:06.04 3.0 positive manual P -6.96 0
IV.FDMO.HHZ. 2023-01-12T18:22:05.38 0.6 undecidable manual P 38 12.5763 128 0.88 39
IV.MC2.EHZ. 2023-01-12T18:22:05.59 0.1 undecidable manual P 104 16.3725 121 0.45 92
IV.MML1.EHZ. 2023-01-12T18:22:05.46 0.1 undecidable manual P 355 18.5703 118 -0.06 100
IV.FEMA.HNN. 2023-01-12T18:22:05.41 0.3 undecidable manual S 70 4.8951 153 0.3 73
IT.MTCL.HGN. 2023-01-12T18:22:05.06 0.3 undecidable manual S 6 5.1948 152 -0.09 76
IV.NRCA.HHZ. 2023-01-12T18:22:04.67 0.3 undecidable manual P 142 15.9729 121 -0.4 70
IV.CESI.HHE. 2023-01-12T18:22:04.17 0.3 undecidable manual P 312 9.6792 135 0.11 75
IT.MTCL.HGN. 2023-01-12T18:22:03.60 0.3 undecidable manual P 6 5.1948 152 0.07 77
IV.FEMA.HNN. 2023-01-12T18:22:03.69 0.3 undecidable manual P 70 4.8951 153 0.18 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.7 0.00005065 0.14 AML other m 2023-01-12T18:22:07.50
IV.NRCA.HHE. ML:0.7 0.000043449164999999995 0.0768 AML other m 2023-01-12T18:22:07.55
IV.FDMO.HHE. ML:0.4 0.00003167308 0.2432 AML other m 2023-01-12T18:22:07.02
IV.FDMO.HHN. ML:0.4 0.00003007661 0.2048 AML other m 2023-01-12T18:22:06.90
IV.MML1.EHE. ML:0.3 0.000017168065 0.1152 AML other m 2023-01-12T18:22:09.02
IV.MML1.EHN. ML:0.1 0.0000121715235 0.1152 AML other m 2023-01-12T18:22:08.75
IV.MC2.EHE. ML:0.0 0.000009521299999999954 0.128 AML other m 2023-01-12T18:22:08.44
IV.MC2.EHN. ML:0.2 0.000014289499999999982 0.1408 AML other m 2023-01-12T18:22:08.74
IV.CSP1.EHE. ML:0.5 0.000018741625000000002 0.1408 AML other m 2023-01-12T18:22:10.04
IV.CSP1.EHN. ML:0.7 0.000031872264499999996 0.1408 AML other m 2023-01-12T18:22:10.56
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