Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 25-11-2022 and time 04:52:27 (UTC) in region 4 km SW Castel Focognano (AR)

A magnitude ML 1.1 earthquake occured in region: 4 km SW Castel Focognano (AR), on

  • 25-11-2022 04:52:27 (UTC)
  • 25-11-2022 05:52:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6350, 11.7980 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.

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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
Castel Focognano AR 4 3149 3149
Talla AR 4 1062 4211
Ortignano Raggiolo AR 6 878 5089
Bibbiena AR 7 12241 17330
Chitignano AR 7 899 18229
Subbiano AR 9 6331 24560
Capolona AR 9 5438 29998
Poppi AR 10 6160 36158
Castiglion Fibocchi AR 12 2167 38325
Chiusi della Verna AR 13 2023 40348
Castel San Niccolò AR 14 2707 43055
Loro Ciuffenna AR 14 5819 48874
Caprese Michelangelo AR 15 1426 50300
Laterina AR 16 3517 53817
Pratovecchio Stia AR 18 5845 59662
Montemignaio AR 19 566 60228
Terranuova Bracciolini AR 19 12346 72574
Castelfranco Piandiscò AR 20 9632 82206
Arezzo AR 20 99543 181749

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NW of Arezzo (99543 inhabitants)
46 Km E of Firenze (382808 inhabitants)
51 Km NE of Siena (53903 inhabitants)
51 Km E of Scandicci (50609 inhabitants)
63 Km E of Prato (191150 inhabitants)
66 Km SW of Cesena (96758 inhabitants)
68 Km SW of Forlì (117913 inhabitants)
73 Km S of Faenza (58541 inhabitants)
76 Km NW of Perugia (166134 inhabitants)
78 Km SW of Rimini (147750 inhabitants)
78 Km E of Pistoia (90315 inhabitants)
80 Km S of Imola (69797 inhabitants)
93 Km SW of Ravenna (159116 inhabitants)
95 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 1.1 2022-11-25
04:52:27		 43.6353 11.7977 10 2024-03-01
15:28:25		 Bollettino Sismico Italiano INGV 118245041
Reviewed
Rev100 		ML 1.1 2022-11-25
04:52:27		 43.6308 11.7963 9 2022-11-25
04:57:50		 Sala Sismica INGV-Roma 112189791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-11-25 04:52:27 ± 0.08
Latitude 43.6353 ± 0.0036
Longitude 11.7977 ± 0.0050
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 118245041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 435
Semi-minor axis of confidence ellipse (meter) 327
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 56
Circular confidence region, given by single value of horizontal uncertainty (meter) 440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
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) 0.11242
Epicentral distance of station farthest from the epicenter (degree) 0.44696
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 118245041
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-06-09 16:33:34

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 112189791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-11-25 04:57:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LMD.HHZ. 2022-11-25T04:52:43.60 0.6 undecidable manual S 352 49.617 50 0.43 44
IV.BOSL.HHE. 2022-11-25T04:52:42.92 0.6 undecidable manual S 314 47.2194 50 0.39 45
IV.CSNT.HHZ. 2022-11-25T04:52:41.91 0.6 undecidable manual S 246 44.622 50 0.07 48
IV.VMGN.HHN. 2022-11-25T04:52:41.13 0.6 undecidable manual S 329 41.3253 50 0.17 47
IV.ATMC.EHE. 2022-11-25T04:52:40.13 0.6 undecidable manual S 123 38.0286 50 0.04 49
IV.BADI.EHZ. 2022-11-25T04:52:40.70 0.6 undecidable manual S 111 38.5281 50 0.48 45
IV.PARC.HHZ. 2022-11-25T04:52:39.29 1.0 undecidable manual S 87 35.4423 50 -0.11 24
IV.CAFI.HHZ. 2022-11-25T04:52:39.38 0.6 undecidable manual S 158 36.5412 50 -0.32 46
IV.RUFI.EHZ. 2022-11-25T04:52:38.25 0.6 undecidable manual S 314 32.2455 50 -0.29 47
IV.SFI.EHZ. 2022-11-25T04:52:37.67 0.6 undecidable manual S 8 30.1476 50 -0.32 47
IV.LMD.HHZ. 2022-11-25T04:52:36.43 0.3 undecidable manual P 352 49.617 50 0.01 72
IV.BOSL.HHE. 2022-11-25T04:52:36.07 0.3 undecidable manual P 314 47.2194 50 0.03 73
IV.CSNT.HHZ. 2022-11-25T04:52:35.69 0.3 undecidable manual P 246 44.622 50 0.04 73
IV.VMGN.HHN. 2022-11-25T04:52:35.22 0.3 undecidable manual P 329 41.3253 50 0.08 72
IV.BADI.EHZ. 2022-11-25T04:52:34.77 0.3 undecidable manual P 111 38.5281 50 0.06 73
IV.PARC.HHZ. 2022-11-25T04:52:34.18 0.1 undecidable manual P 87 35.4423 50 -0.05 98
IV.CAFI.HHZ. 2022-11-25T04:52:34.57 0.3 undecidable manual P 158 36.5412 50 0.16 72
IV.ATMC.EHE. 2022-11-25T04:52:34.37 0.3 undecidable manual P 123 38.0286 50 -0.27 70
IV.RUFI.EHZ. 2022-11-25T04:52:33.50 0.1 undecidable manual P 314 32.2455 50 -0.24 95
IV.SFI.EHZ. 2022-11-25T04:52:33.20 0.3 undecidable manual P 8 30.1476 50 -0.22 72
IV.CRE.HHZ. 2022-11-25T04:52:32.61 0.3 undecidable manual S 98 12.4764 128 -0.07 76
IV.CRE.HHZ. 2022-11-25T04:52:30.52 0.1 positive manual P 98 12.4764 128 0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RUFI.EHN. ML:1.2 0.000081360615 0.0608 AML other m 2022-11-25T04:52:32.56
IV.SFI.HNN. ML:1.5 0.00016400545 0.4288 AML other m 2022-11-25T04:52:32.49
IV.SFI.EHN. ML:0.7 0.00002643097 1.0624 AML other m 2022-11-25T04:52:32.77
IV.CRE.HHE. ML:1.3 0.00020985625 0.3008 AML other m 2022-11-25T04:52:32.96
IV.CRE.HHN. ML:1.4 0.0002875 0.28 AML other m 2022-11-25T04:52:32.82
IV.CAFI.HNN. ML:1.0 0.00004172735 0.208 AML other m 2022-11-25T04:52:36.28
IV.CAFI.HNE. ML:1.0 0.000041640545 1.6384 AML other m 2022-11-25T04:52:38.03
IV.SFI.EHE. ML:0.9 0.000035833660000000006 1.1392 AML other m 2022-11-25T04:52:38.25
IV.PARC.HHN. ML:1.2 0.00006735 0.82 AML other m 2022-11-25T04:52:39.30
IV.CAFI.HHN. ML:0.9 0.000028934415000000003 0.16 AML other m 2022-11-25T04:52:40.15
IV.CAFI.HHE. ML:0.9 0.000029903157 0.2784 AML other m 2022-11-25T04:52:40.21
IV.PARC.HHE. ML:1.0 0.000039699999999999996 0.88 AML other m 2022-11-25T04:52:40.96
IV.SFI.HNE. ML:1.5 0.000138214585 0.928 AML other m 2022-11-25T04:52:40.20
IV.BADI.EHE. ML:1.4 0.000087 0.2 AML other m 2022-11-25T04:52:41.28
IV.BADI.EHN. ML:1.5 0.000111 0.18 AML other m 2022-11-25T04:52:41.35
IV.CSNT.HHN. ML:1.3 0.00005770864 0.1824 AML other m 2022-11-25T04:52:42.24
IV.CSNT.HHE. ML:0.9 0.00002735 0.12 AML other m 2022-11-25T04:52:42.53
IV.RUFI.EHE. ML:1.0 0.000048814325000000006 1.2608 AML other m 2022-11-25T04:52:43.29
IV.LMD.HHE. ML:1.1 0.00003242462 1.84 AML other m 2022-11-25T04:52:44.02
IV.LMD.HHN. ML:1.0 0.000026475264999999998 1.44 AML other m 2022-11-25T04:52:54.22
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