Earthquake with magnitude of ML 1.8 on date 20-11-2022 and time 06:45:04 (Italy) in region 3 km W Castel Focognano (AR)

A magnitude ML 1.8 earthquake occured in region: 3 km W Castel Focognano (AR), on

  • 20-11-2022 05:45:04 (UTC)
  • 20-11-2022 06:45:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6440, 11.8070 at 10 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Castel Focognano AR 3 3149 3149
Talla AR 5 1062 4211
Bibbiena AR 6 12241 16452
Ortignano Raggiolo AR 6 878 17330
Chitignano AR 6 899 18229
Subbiano AR 9 6331 24560
Poppi AR 10 6160 30720
Capolona AR 10 5438 36158
Chiusi della Verna AR 12 2023 38181
Castiglion Fibocchi AR 13 2167 40348
Castel San Niccolò AR 14 2707 43055
Caprese Michelangelo AR 14 1426 44481
Loro Ciuffenna AR 15 5819 50300
Laterina AR 17 3517 53817
Pratovecchio Stia AR 18 5845 59662
Montemignaio AR 19 566 60228
Pieve Santo Stefano AR 19 3183 63411

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NW of Arezzo (99543 inhabitants)
46 Km E of Firenze (382808 inhabitants)
52 Km E of Scandicci (50609 inhabitants)
53 Km NE of Siena (53903 inhabitants)
63 Km E of Prato (191150 inhabitants)
65 Km SW of Cesena (96758 inhabitants)
67 Km S of Forlì (117913 inhabitants)
72 Km S of Faenza (58541 inhabitants)
76 Km NW of Perugia (166134 inhabitants)
77 Km SW of Rimini (147750 inhabitants)
78 Km E of Pistoia (90315 inhabitants)
79 Km S of Imola (69797 inhabitants)
92 Km SW of Ravenna (159116 inhabitants)
94 Km W of Pesaro (94582 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 1.8 2022-11-20
05:45:04
43.6437 11.8073 10 2024-03-01
15:28:08
Bollettino Sismico Italiano INGV 112411851
Reviewed
Rev100
ML 1.7 2022-11-20
05:45:04
43.6382 11.8018 10 2022-11-20
06:15:27
Sala Sismica INGV-Roma 112017981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-11-20 05:45:04 ± 0.08
Latitude 43.6437 ± 0.0027
Longitude 11.8073 ± 0.0037
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 112411851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 348
Semi-minor axis of confidence ellipse (meter) 90
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 215
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.10702
Epicentral distance of station farthest from the epicenter (degree) 0.82738
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 112411851
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-12-01 11:45:17

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 21
Type of magnitude ML
Reference to an origin 112017981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-11-20 06:15:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATMI.HHZ. 2022-11-20T05:45:21.18 0.3 undecidable manual S 133 50.5161 50 0.12 69
IV.ATPI.EHZ. 2022-11-20T05:45:21.63 0.3 undecidable manual S 114 52.4031 50 0.07 70
IV.SACS.HHE. 2022-11-20T05:45:20.63 0.1 undecidable manual P 175 88.5447 50 0.56 77
IV.BOSL.HHZ. 2022-11-20T05:45:20.52 0.3 undecidable manual S 313 47.1195 50 0.38 66
IV.OSSC.HHZ. 2022-11-20T05:45:20.01 0.6 undecidable manual S 254 47.0196 50 -0.12 46
IV.ARCI.HHZ. 2022-11-20T05:45:20.51 0.1 undecidable manual P 197 91.8414 50 -0.07 86
IV.LMD.HHZ. 2022-11-20T05:45:20.91 0.3 undecidable manual S 351 48.8178 50 0.32 67
IT.FIE.HGZ. 2022-11-20T05:45:19.49 0.6 undecidable manual S 294 44.9217 50 -0.08 47
IV.MGAB.HHZ. 2022-11-20T05:45:19.61 0.3 undecidable manual P 163 84.7485 50 0.12 65
IV.CSNT.HHZ. 2022-11-20T05:45:19.58 0.3 undecidable manual S 246 45.7209 50 -0.19 69
TV.SF11.HHZ. 2022-11-20T05:45:19.96 0.6 undecidable manual P 187 86.6466 50 0.19 42
IV.MALA1.EHN. 2022-11-20T05:45:18.80 0.3 undecidable manual P 201 75.8685 50 0.69 56
IV.MALA0.EHN. 2022-11-20T05:45:18.25 0.1 undecidable manual P 201 75.6687 50 0.16 87
IV.VMGN.HHZ. 2022-11-20T05:45:18.85 0.6 undecidable manual S 328 40.9257 50 0.36 45
IV.MALA4.EHZ. 2022-11-20T05:45:18.36 0.1 undecidable manual P 201 75.5688 50 0.28 85
IV.CAFI.HHZ. 2022-11-20T05:45:17.23 0.3 undecidable manual S 160 37.1295 50 -0.26 69
IV.FROS.CHE. 2022-11-20T05:45:17.66 0.1 undecidable manual P 228 71.1732 50 0.26 86
IV.ATMC.EHZ. 2022-11-20T05:45:17.44 0.3 undecidable manual S 125 37.9287 50 -0.25 69
IV.BADI.EHZ. 2022-11-20T05:45:17.58 0.3 undecidable manual S 113 38.1285 50 -0.17 70
IV.MALA5.EHN. 2022-11-20T05:45:17.99 0.1 undecidable manual P 201 75.4689 50 -0.07 89
IV.BRIS.HHN. 2022-11-20T05:45:16.68 0.3 undecidable manual P 357 64.491 50 0.31 65
IV.PARC.HHZ. 2022-11-20T05:45:16.55 0.3 undecidable manual S 89 34.6431 50 -0.26 69
IV.SFI.EHZ. 2022-11-20T05:45:15.42 0.3 undecidable manual S 6 29.1486 50 0.07 73
IV.RUFI.EHZ. 2022-11-20T05:45:15.82 0.3 undecidable manual S 312 32.1456 50 -0.34 68
IT.SNS1.HNZ. 2022-11-20T05:45:15.07 0.6 undecidable manual S 107 27.1506 50 0.25 47
Y1.T1756.HNZ. 2022-11-20T05:45:14.65 0.3 undecidable manual P 27 51.8037 50 0.24 67
IV.ATMI.HHZ. 2022-11-20T05:45:14.35 0.1 undecidable manual P 133 50.5161 50 0.14 92
IV.ATPI.EHZ. 2022-11-20T05:45:14.61 0.3 undecidable manual P 114 52.4031 50 0.11 69
IV.LMD.HHZ. 2022-11-20T05:45:13.82 0.3 undecidable manual P 351 48.8178 50 -0.12 69
IT.FIE.HGZ. 2022-11-20T05:45:13.12 0.1 undecidable manual P 294 44.9217 50 -0.23 91
IV.BOSL.HHZ. 2022-11-20T05:45:13.59 0.3 undecidable manual P 313 47.1195 50 -0.09 70
IV.OSSC.HHZ. 2022-11-20T05:45:13.40 0.1 undecidable manual P 254 47.0196 50 -0.28 90
IV.CSNT.HHZ. 2022-11-20T05:45:13.20 0.3 undecidable manual P 246 45.7209 50 -0.27 68
IV.VMGN.HHZ. 2022-11-20T05:45:12.64 0.1 undecidable manual P 328 40.9257 50 -0.09 94
IV.BADI.EHZ. 2022-11-20T05:45:12.23 0.3 undecidable manual P 113 38.1285 50 -0.07 71
IV.PARC.HHZ. 2022-11-20T05:45:11.60 0.3 undecidable manual P 89 34.6431 50 -0.16 70
IV.CAFI.HHZ. 2022-11-20T05:45:11.85 0.3 undecidable manual P 160 37.1295 50 -0.3 68
IV.ATMC.EHZ. 2022-11-20T05:45:11.93 0.1 undecidable manual P 125 37.9287 50 -0.34 90
IV.RUFI.EHZ. 2022-11-20T05:45:11.07 0.1 undecidable manual P 312 32.1456 50 -0.31 91
IV.CRE.HHZ. 2022-11-20T05:45:10.12 0.3 undecidable manual S 103 11.877 130 -0.12 74
IT.SNS1.HNZ. 2022-11-20T05:45:10.78 0.1 undecidable manual P 107 27.1506 50 0.17 95
IV.SFI.EHZ. 2022-11-20T05:45:10.74 0.6 undecidable manual P 6 29.1486 50 -0.18 47
IV.CRE.HHZ. 2022-11-20T05:45:08.02 0.1 positive manual P 103 11.877 130 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRE.HHE. ML:2.3 0.0022249999999999995 0.68 AML other m 2022-11-20T05:45:10.79
IV.CRE.HHN. ML:2.3 0.00233 0.18 AML other m 2022-11-20T05:45:10.94
IV.SFI.EHE. ML:1.6 0.00020950000000000002 0.76 AML other m 2022-11-20T05:45:15.88
IV.RUFI.EHE. ML:1.6 0.000199 0.3 AML other m 2022-11-20T05:45:16.52
IV.RUFI.EHN. ML:1.6 0.000193 0.56 AML other m 2022-11-20T05:45:16.66
IV.SFI.EHN. ML:1.6 0.000191 0.44 AML other m 2022-11-20T05:45:16.45
IV.PARC.HHN. ML:1.8 0.0002585 0.82 AML other m 2022-11-20T05:45:17.56
IV.BADI.EHN. ML:1.9 0.00028349999999999995 0.18 AML other m 2022-11-20T05:45:18.73
IV.PARC.HHE. ML:1.5 0.0001325 0.5 AML other m 2022-11-20T05:45:19.39
IV.BADI.EHE. ML:1.7 0.000199 1.22 AML other m 2022-11-20T05:45:19.16
IV.CSNT.HHN. ML:1.7 0.0001415 0.18 AML other m 2022-11-20T05:45:19.79
IV.CSNT.HHE. ML:1.5 0.00009154999999999999 0.78 AML other m 2022-11-20T05:45:20.92
IV.BOSL.HHN. ML:1.7 0.0001375 0.16 AML other m 2022-11-20T05:45:21.52
IV.BOSL.HHE. ML:1.6 0.00010145 0.48 AML other m 2022-11-20T05:45:21.66
IV.LMD.HHE. ML:1.9 0.00020500000000000002 0.12 AML other m 2022-11-20T05:45:21.76
IV.LMD.HHN. ML:1.9 0.000194 1.62 AML other m 2022-11-20T05:45:22.93
IV.ATMI.HHE. ML:1.9 0.00019350000000000001 1.08 AML other m 2022-11-20T05:45:23.73
IV.ATMI.HHN. ML:2.0 0.000264 1.28 AML other m 2022-11-20T05:45:26.15
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