Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 08-02-2023 and time 18:10:39 (Italy) in region 6 km SW Monte Cavallo (MC)

A magnitude ML 1.6 earthquake occured in region: 6 km SW Monte Cavallo (MC), on

  • 08-02-2023 17:10:39 (UTC)
  • 08-02-2023 18:10:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9430, 12.9730 at 11 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
Sellano PG 7 1079 1224
Preci PG 9 724 1948
Visso MC 10 1107 3055
Pieve Torina MC 13 1458 4513
Ussita MC 14 444 4957
Fiordimonte MC 14 202 5159
Cerreto di Spoleto PG 14 1075 6234
Serravalle di Chienti MC 15 1070 7304
Castelsantangelo sul Nera MC 16 281 7585
Pievebovigliana MC 16 866 8451
Muccia MC 17 915 9366
Fiastra MC 18 559 9925
Acquacanina MC 19 121 10046
Norcia PG 19 4957 15003
Trevi PG 20 8469 23472

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km E of Foligno (57155 inhabitants)
50 Km NE of Terni (111501 inhabitants)
51 Km E of Perugia (166134 inhabitants)
68 Km W of Teramo (54892 inhabitants)
74 Km NW of L'Aquila (69753 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
92 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 1.6 2023-02-08
17:10:39		 42.943 12.9728 11 2024-03-01
17:18:15		 Bollettino Sismico Italiano INGV 120550771
Reviewed
Rev100 		ML 1.6 2023-02-08
17:10:39		 42.9428 12.9693 11 2023-02-08
17:16:15		 Sala Sismica INGV-Roma 114265361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-08 17:10:39 ± 0.04
Latitude 42.9430 ± 0.0018
Longitude 12.9728 ± 0.0025
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 120550771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 258
Semi-minor axis of confidence ellipse (meter) 203
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 55
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 42
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) 0.05486
Epicentral distance of station farthest from the epicenter (degree) 0.51261
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 48
Type of magnitude ML
Reference to an origin 114265361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-08 17:16:15

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 54
Type of magnitude ML
Reference to an origin 120550771
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-08-28 13:04:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2023-02-08T17:10:54.45 0.6 undecidable manual S 14 44.1225 50 0.29 44
IV.MOMA.HHZ. 2023-02-08T17:10:52.48 0.6 undecidable manual S 245 36.2415 50 0.43 44
IV.LNSS.HHZ. 2023-02-08T17:10:52.69 0.6 undecidable manual S 172 38.1285 50 0.13 46
IV.ATCC.EHZ. 2023-02-08T17:10:52.80 0.6 undecidable manual S 315 38.0286 50 0.25 45
IV.SNTG.HHZ. 2023-02-08T17:10:51.75 0.6 undecidable manual S 356 34.743 50 0.1 47
IV.GUMA.HHZ. 2023-02-08T17:10:51.77 0.6 undecidable manual S 66 32.2455 50 0.77 39
IV.MMO1.EHZ. 2023-02-08T17:10:50.13 0.6 undecidable manual S 99 29.1486 50 -0.04 48
IV.SSFR.HHZ. 2023-02-08T17:10:49.90 0.3 undecidable manual P 344 56.8986 50 -0.18 67
7F.SIB1.EHZ. 2023-02-08T17:10:49.03 0.6 undecidable manual S 102 24.753 50 0.04 48
IV.GAVE.EHZ. 2023-02-08T17:10:49.99 0.6 undecidable manual S 193 28.5492 50 -0.02 48
IV.RM33.EHZ. 2023-02-08T17:10:49.24 0.3 undecidable manual P 158 52.0035 50 -0.09 68
7F.SIB2.EHZ. 2023-02-08T17:10:49.58 0.3 undecidable manual S 102 27.5502 50 -0.15 71
IV.CSP1.EHZ. 2023-02-08T17:10:49.06 0.6 undecidable manual S 49 25.0527 50 -0.01 49
IV.PF6.EHZ. 2023-02-08T17:10:49.67 0.6 undecidable manual S 40 28.1496 50 -0.22 46
7F.SIB3.EHZ. 2023-02-08T17:10:48.77 0.6 undecidable manual S 107 25.2525 50 -0.37 45
IV.EL6.EHZ. 2023-02-08T17:10:48.08 0.1 undecidable manual P 14 44.1225 50 -0.04 94
IV.ATCC.EHZ. 2023-02-08T17:10:47.11 0.1 undecidable manual P 315 38.0286 50 -0.07 94
IV.MML1.EHZ. 2023-02-08T17:10:47.25 0.6 undecidable manual S 360 18.9699 120 -0.16 48
IV.MC2.EHZ. 2023-02-08T17:10:47.43 0.6 undecidable manual S 101 17.871 121 0.33 46
IV.LNSS.HHZ. 2023-02-08T17:10:47.07 0.1 undecidable manual P 172 38.1285 50 -0.12 93
IV.SNTG.HHZ. 2023-02-08T17:10:46.53 0.1 undecidable manual P 356 34.743 50 -0.14 93
IV.NRCA.HHZ. 2023-02-08T17:10:46.59 0.6 undecidable manual S 136 16.6722 123 -0.16 48
IV.GUMA.HHZ. 2023-02-08T17:10:46.60 0.1 positive manual P 66 32.2455 50 0.31 90
IV.MOMA.HHZ. 2023-02-08T17:10:46.75 0.3 undecidable manual P 245 36.2415 50 -0.14 70
7F.SIB2.EHZ. 2023-02-08T17:10:45.47 0.1 undecidable manual P 102 27.5502 50 -0.09 95
IV.CSP1.EHZ. 2023-02-08T17:10:45.15 0.1 undecidable manual P 49 25.0527 50 -0.03 97
IV.PF6.EHZ. 2023-02-08T17:10:45.50 0.1 undecidable manual P 40 28.1496 50 -0.15 94
7F.SIB3.EHZ. 2023-02-08T17:10:45.13 0.1 undecidable manual P 107 25.2525 50 -0.09 96
IV.MMO1.EHZ. 2023-02-08T17:10:45.79 0.1 undecidable manual P 99 29.1486 50 -0.02 96
7F.SIB1.EHZ. 2023-02-08T17:10:45.19 0.1 undecidable manual P 102 24.753 50 0.06 96
IV.GAVE.EHZ. 2023-02-08T17:10:45.73 0.3 undecidable manual P 193 28.5492 50 0.01 72
IV.FDMO.HHZ. 2023-02-08T17:10:45.77 0.6 undecidable manual S 42 13.9749 128 -0.19 48
IV.MC2.EHZ. 2023-02-08T17:10:44.12 0.3 undecidable manual P 101 17.871 121 0.08 73
IV.FEMA.HNZ. 2023-02-08T17:10:44.36 0.6 undecidable manual S 71 6.5934 148 0.13 49
IV.CESI.HHZ. 2023-02-08T17:10:44.63 0.3 undecidable manual S 321 8.7801 141 -0.05 74
IV.MML1.EHZ. 2023-02-08T17:10:44.10 0.1 undecidable manual P 360 18.9699 120 -0.11 96
IT.MTCL.HGZ. 2023-02-08T17:10:43.90 0.6 undecidable manual S 21 6.0939 151 -0.24 48
IV.FDMO.HHZ. 2023-02-08T17:10:43.44 0.1 positive manual P 42 13.9749 128 0.06 98
IV.NRCA.HHZ. 2023-02-08T17:10:43.84 0.1 negative manual P 136 16.6722 123 0 99
IV.CESI.HHZ. 2023-02-08T17:10:42.77 0.1 undecidable manual P 321 8.7801 141 0.13 98
IT.MTCL.HGZ. 2023-02-08T17:10:42.36 0.1 undecidable manual P 21 6.0939 151 0.03 100
IV.FEMA.HNZ. 2023-02-08T17:10:42.61 0.1 undecidable manual P 71 6.5934 148 0.23 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IT.MTCL.HGN. ML:3.4 0.038415665 0.0896 AML other m 2023-02-08T17:10:44.28
IT.MTCL.HGE. ML:3.4 0.040647695 0.0512 AML other m 2023-02-08T17:10:44.31
IV.CESI.HHN. ML:2.0 0.0011665298 0.1024 AML other m 2023-02-08T17:10:44.79
IV.CESI.HHE. ML:1.9 0.000952207 0.0768 AML other m 2023-02-08T17:10:44.79
IV.CESI.HNN. ML:2.0 0.0014943360000000002 0.2176 AML other m 2023-02-08T17:10:44.90
IV.CESI.HNE. ML:1.8 0.0008144128000000001 1.9104 AML other m 2023-02-08T17:10:45.02
IV.FDMO.HHN. ML:1.7 0.00045220965 0.1408 AML other m 2023-02-08T17:10:45.92
IV.GAVE.HNN. ML:1.8 0.00028369455 1.0016 AML other m 2023-02-08T17:10:45.50
IV.FDMO.HHE. ML:1.6 0.00035549999999999997 0.28 AML other m 2023-02-08T17:10:46.03
IV.NRCA.HHN. ML:1.9 0.0006535 0.1 AML other m 2023-02-08T17:10:46.68
IV.NRCA.HNN. ML:1.8 0.0006214885 0.128 AML other m 2023-02-08T17:10:46.74
IV.NRCA.HNE. ML:1.7 0.0004639329 0.1536 AML other m 2023-02-08T17:10:46.88
IV.ATCC.HNN. ML:1.6 0.00014139738 0.7424 AML other m 2023-02-08T17:10:46.46
IV.NRCA.HHE. ML:1.8 0.000503 0.1 AML other m 2023-02-08T17:10:46.87
IV.GUMA.HNN. ML:1.6 0.000154833575 0.8064 AML other m 2023-02-08T17:10:47.27
IV.SNTG.HNN. ML:1.5 0.0001210686 0.5888 AML other m 2023-02-08T17:10:47.87
IV.MML1.HNE. ML:1.4 0.00021285225 0.1152 AML other m 2023-02-08T17:10:47.62
IV.MML1.EHE. ML:1.4 0.0002114435 0.1152 AML other m 2023-02-08T17:10:47.62
IV.MML1.HNN. ML:1.4 0.0002053525 0.0896 AML other m 2023-02-08T17:10:47.69
IV.MML1.EHN. ML:1.4 0.0001965 0.08 AML other m 2023-02-08T17:10:47.65
IV.LNSS.HNN. ML:1.7 0.000164049325 1.0272 AML other m 2023-02-08T17:10:48.20
IV.MC2.EHE. ML:1.6 0.00035196225 0.2432 AML other m 2023-02-08T17:10:48.92
IV.CSP1.EHN. ML:1.8 0.00036637575 0.1792 AML other m 2023-02-08T17:10:49.34
IV.CSP1.EHE. ML:1.8 0.00032832355 0.2048 AML other m 2023-02-08T17:10:50.21
IV.MC2.EHN. ML:1.6 0.00028944056650000003 0.192 AML other m 2023-02-08T17:10:50.30
IV.GAVE.EHE. ML:1.6 0.00021669664999999998 0.1024 AML other m 2023-02-08T17:10:50.57
IV.GAVE.HNE. ML:1.7 0.00023805415 0.1152 AML other m 2023-02-08T17:10:50.57
IV.GAVE.EHN. ML:1.7 0.0002755921 0.1792 AML other m 2023-02-08T17:10:50.59
IV.SNTG.HHN. ML:1.3 0.00008710000000000002 1.62 AML other m 2023-02-08T17:10:51.99
IV.GUMA.HNE. ML:1.5 0.000150429235 1.7824 AML other m 2023-02-08T17:10:52.90
IV.GUMA.HHN. ML:1.6 0.000190462585 1.7952 AML other m 2023-02-08T17:10:52.91
IV.SNTG.HHE. ML:1.3 0.00008501030499999999 0.1408 AML other m 2023-02-08T17:10:52.10
IV.SSFR.HNE. ML:1.8 0.000139329765 0.5888 AML other m 2023-02-08T17:10:52.25
IV.RM33.EHN. ML:1.2 0.000037120576500000004 0.912 AML other m 2023-02-08T17:10:52.32
IV.GUMA.HHE. ML:1.4 0.00011210933 0.2432 AML other m 2023-02-08T17:10:52.54
IV.LNSS.HHE. ML:1.5 0.00010883912500000001 0.128 AML other m 2023-02-08T17:10:52.91
IV.LNSS.HHN. ML:1.5 0.000109800545 0.1536 AML other m 2023-02-08T17:10:53.35
IV.MOMA.HHE. ML:1.2 0.00005586487 0.2304 AML other m 2023-02-08T17:10:53.49
IV.MOMA.HHN. ML:1.1 0.000052001025 0.1792 AML other m 2023-02-08T17:10:54.64
IV.ATCC.EHE. ML:1.2 0.00006705086000000001 0.192 AML other m 2023-02-08T17:10:54.72
IV.EL6.EHN. ML:1.6 0.00012819733500000002 0.1536 AML other m 2023-02-08T17:10:54.85
IV.ATCC.EHN. ML:1.4 0.00009259518999999999 1.296 AML other m 2023-02-08T17:10:55.12
IV.EL6.EHE. ML:1.7 0.00014556954999999999 0.2304 AML other m 2023-02-08T17:10:56.17
IV.LNSS.HNE. ML:1.5 0.00011988463000000001 0.512 AML other m 2023-02-08T17:10:57.63
IV.SSFR.HHN. ML:1.2 0.000035187355000000005 0.2048 AML other m 2023-02-08T17:10:58.00
IV.SSFR.HHE. ML:1.3 0.000044744939999999995 1.744 AML other m 2023-02-08T17:10:59.89
IV.MOMA.HNE. ML:1.4 0.00010504727999999999 0.64 AML other m 2023-02-08T17:10:59.60
IV.MOMA.HNN. ML:1.5 0.00012355839999999999 1.168 AML other m 2023-02-08T17:11:00.10
IV.ATCC.HNE. ML:1.5 0.00010475166500000001 0.768 AML other m 2023-02-08T17:11:00.70
IV.SNTG.HNE. ML:1.5 0.0001370085 0.8064 AML other m 2023-02-08T17:11:02.25
IV.RM33.HNE. ML:1.8 0.00016079699999999999 0.7424 AML other m 2023-02-08T17:11:05.41
IV.RM33.HNN. ML:1.7 0.000134812655 0.7424 AML other m 2023-02-08T17:11:05.86
IV.RM33.EHE. ML:1.2 0.00004173823 1.088 AML other m 2023-02-08T17:11:12.08
IV.SSFR.HNN. ML:1.9 0.0001583918 1.0016 AML other m 2023-02-08T17:11:15.21
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