Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 23-01-2022 and time 18:46:47 (Italy) in region 2 km S Pratovecchio Stia (AR)

A magnitude ML 1.7 earthquake occured in region: 2 km S Pratovecchio Stia (AR), on

  • 23-01-2022 17:46:47 (UTC)
  • 23-01-2022 18:46:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.7710, 11.7250 at 9 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
Pratovecchio Stia AR 2 5845 5845
Castel San Niccolò AR 4 2707 8552
Poppi AR 6 6160 14712
Montemignaio AR 9 566 15278
Ortignano Raggiolo AR 10 878 16156
Bibbiena AR 11 12241 28397
Castel Focognano AR 16 3149 31546
Londa FI 16 1840 33386
Chitignano AR 17 899 34285
Pelago FI 18 7660 41945
Reggello FI 18 16290 58235
Chiusi della Verna AR 19 2023 60258
San Godenzo FI 19 1167 61425
Talla AR 19 1062 62487

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NW of Arezzo (99543 inhabitants)
38 Km E of Firenze (382808 inhabitants)
44 Km E of Scandicci (50609 inhabitants)
52 Km E of Prato (191150 inhabitants)
56 Km SW of Forlì (117913 inhabitants)
58 Km SW of Cesena (96758 inhabitants)
59 Km S of Faenza (58541 inhabitants)
59 Km NE of Siena (53903 inhabitants)
65 Km S of Imola (69797 inhabitants)
67 Km E of Pistoia (90315 inhabitants)
75 Km W of Rimini (147750 inhabitants)
81 Km SW of Ravenna (159116 inhabitants)
86 Km SE of Bologna (386663 inhabitants)
91 Km NW of Perugia (166134 inhabitants)
97 Km W of Pesaro (94582 inhabitants)
99 Km E of Lucca (89046 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 1.7 2022-01-23
17:46:47		 43.7708 11.7253 9 2022-07-08
12:33:57		 Bollettino Sismico Italiano INGV 104704551
Reviewed
Rev100 		ML 1.7 2022-01-23
17:46:47		 43.7728 11.7267 9 2022-01-23
17:53:38		 Sala Sismica INGV-Roma 100099601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-01-23 17:46:47 ± 0.06
Latitude 43.7708 ± 0.0045
Longitude 11.7253 ± 0.0050
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 104704551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 499
Semi-minor axis of confidence ellipse (meter) 191
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 27
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 37
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.86785
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 60
Type of magnitude ML
Reference to an origin 104704551
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-05-16 10:26:46

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 60
Type of magnitude ML
Reference to an origin 100099601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-01-23 17:53:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OT.OT17.EHZ. 2022-01-23T17:48:24.44 3.0 undecidable manual Sn 1.29 0
IV.LRP.EHZ. 2022-01-23T17:48:09.40 3.0 undecidable manual Sg 7.61 0
IV.EUCT.HNZ. 2022-01-23T17:48:01.91 3.0 undecidable manual Sg 3.59 0
GU.RNCA.HHZ. 2022-01-23T17:47:54.24 3.0 undecidable manual Sn 1.54 0
IV.VARE.HHZ. 2022-01-23T17:47:45.16 3.0 undecidable manual Pg 9.45 0
IT.ORP.HGZ. 2022-01-23T17:47:44.42 3.0 undecidable manual Pn 0.46 0
IV.MF5.EHZ. 2022-01-23T17:47:17.29 3.0 positive manual P 2.46 0
IV.BDI.HHZ. 2022-01-23T17:47:04.40 0.3 undecidable manual P 290 95.9262 50 0.56 56
IV.PII.HHZ. 2022-01-23T17:47:04.16 0.3 undecidable manual P 267 96.3258 50 0.26 61
IV.CSNT.HHZ. 2022-01-23T17:47:03.37 0.6 undecidable manual S 227 48.1185 50 0.22 45
IV.ATFO.HHZ. 2022-01-23T17:47:01.83 0.3 undecidable manual P 123 81.4518 50 0.22 63
IV.SSP9.EHZ. 2022-01-23T17:47:01.02 0.3 undecidable manual S 124 39.2274 50 0.23 68
IV.PARC.HHZ. 2022-01-23T17:47:01.59 0.6 undecidable manual S 108 43.3233 50 -0.29 44
IV.ATVO.HHZ. 2022-01-23T17:47:00.10 0.3 undecidable manual P 128 69.6747 50 0.31 63
IV.ATPI.EHZ. 2022-01-23T17:46:59.18 0.3 undecidable manual P 123 64.9905 50 0.12 66
IV.PIEI.HHZ. 2022-01-23T17:46:59.56 0.3 undecidable manual P 112 70.0743 50 -0.29 63
IV.BOSL.HHZ. 2022-01-23T17:46:59.06 0.3 undecidable manual S 302 33.2445 50 -0.12 70
IV.PE3.EHZ. 2022-01-23T17:46:59.31 0.6 undecidable manual P 97 62.3931 50 0.64 39
IV.ATMI.HHZ. 2022-01-23T17:46:59.58 0.3 undecidable manual P 138 65.1903 50 0.48 61
IT.FIE.HGE. 2022-01-23T17:46:59.19 0.6 undecidable manual S 277 34.743 50 -0.4 44
IV.NARO.HHZ. 2022-01-23T17:46:59.50 0.3 undecidable manual P 104 70.8735 50 -0.47 61
IV.LMD.HHZ. 2022-01-23T17:46:58.99 0.3 undecidable manual S 358 34.0437 50 -0.41 66
IV.CRMI.HHZ. 2022-01-23T17:46:58.54 0.3 undecidable manual P 273 59.7957 50 0.27 65
IV.BADI.EHZ. 2022-01-23T17:46:57.06 0.3 undecidable manual P 125 50.7159 50 0.18 67
IV.VISG.HHZ. 2022-01-23T17:46:57.76 0.3 undecidable manual P 334 51.9036 50 0.71 58
IV.BRIS.HHZ. 2022-01-23T17:46:57.19 0.3 undecidable manual P 4 50.4162 50 0.36 65
IV.MPPT.EHZ. 2022-01-23T17:46:57.51 0.1 undecidable manual P 292 54.8007 50 0 92
IV.CAFI.HHZ. 2022-01-23T17:46:57.13 0.3 undecidable manual P 158 52.7028 50 -0.04 69
IV.CPGN.EHZ. 2022-01-23T17:46:56.65 0.3 undecidable manual P 86 47.8188 50 0.23 67
IV.CSNT.HHZ. 2022-01-23T17:46:56.11 0.1 undecidable manual P 227 48.1185 50 -0.35 87
IV.OSSC.HHZ. 2022-01-23T17:46:56.08 0.1 undecidable manual P 235 47.2194 50 -0.26 89
IV.CRE.HHZ. 2022-01-23T17:46:56.30 0.6 undecidable manual S 133 24.753 109 -0.14 47
IV.PARC.HHZ. 2022-01-23T17:46:55.23 0.3 undecidable manual P 108 43.3233 50 -0.5 63
IV.SSP9.EHZ. 2022-01-23T17:46:55.06 0.3 undecidable manual P 124 39.2274 50 -0.04 71
IT.FIE.HGE. 2022-01-23T17:46:54.14 0.3 undecidable manual P 277 34.743 50 -0.27 68
IV.SFI.EHZ. 2022-01-23T17:46:54.29 0.6 undecidable manual S 33 17.7711 116 0.09 48
IV.RUFI.EHZ. 2022-01-23T17:46:54.56 0.3 undecidable manual S 293 18.7701 115 0.03 73
IV.BOSL.HHZ. 2022-01-23T17:46:54.04 0.1 undecidable manual P 302 33.2445 50 -0.14 93
IV.LMD.HHZ. 2022-01-23T17:46:53.97 0.1 positive manual P 358 34.0437 50 -0.33 89
IV.CRE.HHZ. 2022-01-23T17:46:52.33 0.3 undecidable manual P 133 24.753 109 -0.26 69
IV.SFI.EHZ. 2022-01-23T17:46:51.34 0.1 positive manual P 33 17.7711 116 0.04 98
IV.RUFI.EHZ. 2022-01-23T17:46:51.62 0.1 positive manual P 293 18.7701 115 0.14 96
IV.ASQU.HHZ. 2022-01-23T17:46:50.83 0.3 undecidable manual S 61 5.8941 146 -0.15 73
IV.ASQU.HHZ. 2022-01-23T17:46:49.46 0.1 undecidable manual P 61 5.8941 146 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASQU.HHN. ML:2.2 0.0027591015 1.7696 AML other m 2022-01-23T17:46:51.00
IV.ASQU.HHE. ML:2.2 0.0032320235000000003 0.2176 AML other m 2022-01-23T17:46:51.49
IV.RUFI.EHN. ML:1.9 0.000714 0.28 AML other m 2022-01-23T17:46:54.68
IV.RUFI.EHE. ML:2.0 0.000783 0.34 AML other m 2022-01-23T17:46:54.87
IV.SFI.EHN. ML:1.9 0.000764 0.14 AML other m 2022-01-23T17:46:54.84
IV.SFI.HNN. ML:1.9 0.0007654999999999999 0.16 AML other m 2022-01-23T17:46:54.76
IV.SFI.HNE. ML:1.9 0.0006905075000000001 0.1408 AML other m 2022-01-23T17:46:54.77
IV.SFI.EHE. ML:1.9 0.00068779555 0.1408 AML other m 2022-01-23T17:46:54.78
IV.CRE.HHN. ML:1.6 0.0002695 1.24 AML other m 2022-01-23T17:46:59.74
IV.BOSL.HHE. ML:1.3 0.00009694814 0.384 AML other m 2022-01-23T17:46:59.38
IV.LMD.HHE. ML:2.2 0.0005985000000000001 0.22 AML other m 2022-01-23T17:46:59.69
IV.LMD.HHN. ML:1.9 0.0003185 0.26 AML other m 2022-01-23T17:47:00.11
IV.CRE.HHE. ML:1.6 0.000245 0.26 AML other m 2022-01-23T17:47:00.58
IV.BOSL.HHN. ML:1.4 0.0001062 0.58 AML other m 2022-01-23T17:47:00.65
IV.SSP9.EHN. ML:1.4 0.00009049999999999999 0.38 AML other m 2022-01-23T17:47:02.56
IV.PARC.HHN. ML:1.5 0.00010493243499999999 0.2048 AML other m 2022-01-23T17:47:02.50
IV.PARC.HHE. ML:1.4 0.000069101055 1.8208 AML other m 2022-01-23T17:47:03.94
IV.CSNT.HHN. ML:1.4 0.000075973385 0.2304 AML other m 2022-01-23T17:47:03.89
IV.OSSC.HHE. ML:1.4 0.00007352826499999999 0.2432 AML other m 2022-01-23T17:47:04.32
IV.SSP9.EHE. ML:1.4 0.0000845 1.24 AML other m 2022-01-23T17:47:04.11
IV.OSSC.HHN. ML:1.4 0.00006313996499999999 0.2176 AML other m 2022-01-23T17:47:05.51
IV.BADI.EHN. ML:1.5 0.00008715 0.3 AML other m 2022-01-23T17:47:05.98
IV.CAFI.HNE. ML:1.5 0.0000685653 0.3328 AML other m 2022-01-23T17:47:06.31
IV.MPPT.EHN. ML:1.6 0.0000932 0.18 AML other m 2022-01-23T17:47:06.31
IV.MPPT.EHE. ML:1.7 0.00012749159499999998 0.2688 AML other m 2022-01-23T17:47:06.20
IV.CAFI.HHE. ML:1.4 0.000061285365 0.32 AML other m 2022-01-23T17:47:06.51
IV.CAFI.HHN. ML:1.3 0.00005092878 0.2176 AML other m 2022-01-23T17:47:07.22
IV.CRMI.HHN. ML:1.5 0.000070611675 0.3584 AML other m 2022-01-23T17:47:07.08
IV.CPGN.HNE. ML:1.9 0.00020474599999999998 0.5632 AML other m 2022-01-23T17:47:07.95
IV.CPGN.EHE. ML:1.6 0.0001119 0.24 AML other m 2022-01-23T17:47:07.82
IV.CSNT.HHE. ML:1.4 0.00006757674 1.5904 AML other m 2022-01-23T17:47:07.84
IV.BRIS.HHE. ML:1.2 0.00004197522 0.384 AML other m 2022-01-23T17:47:09.04
IV.CRMI.HHE. ML:1.2 0.000034718565 0.3584 AML other m 2022-01-23T17:47:09.65
IV.BADI.EHE. ML:1.5 0.00007967936999999999 0.2048 AML other m 2022-01-23T17:47:11.19
IV.ATPI.EHN. ML:1.4 0.000045591445 0.256 AML other m 2022-01-23T17:47:11.44
IV.ATPI.EHE. ML:1.4 0.00004593321 0.3328 AML other m 2022-01-23T17:47:11.49
IV.BRIS.HNE. ML:1.7 0.00013405604999999998 1.1392 AML other m 2022-01-23T17:47:11.16
IV.PE3.EHN. ML:1.8 0.00011 0.4 AML other m 2022-01-23T17:47:11.65
IV.NARO.HHN. ML:1.3 0.00003565 1.2 AML other m 2022-01-23T17:47:12.70
IV.PE3.EHE. ML:1.8 0.00012005 0.42 AML other m 2022-01-23T17:47:13.08
IV.ATVO.HHN. ML:1.6 0.00006703101 1.6288 AML other m 2022-01-23T17:47:13.14
IV.ATMI.HHE. ML:2.0 0.000175 0.4 AML other m 2022-01-23T17:47:13.14
IV.ATVO.HHE. ML:1.7 0.0000819 0.64 AML other m 2022-01-23T17:47:13.49
IV.ATMI.HHN. ML:1.9 0.00014050000000000003 1.28 AML other m 2022-01-23T17:47:13.66
IV.NARO.HHE. ML:1.2 0.0000262601895 1.744 AML other m 2022-01-23T17:47:13.07
IV.BRIS.HHN. ML:1.1 0.000032995145 0.4352 AML other m 2022-01-23T17:47:14.52
IV.CRMI.HNN. ML:2.0 0.0002003114 0.912 AML other m 2022-01-23T17:47:14.28
IV.ATVO.HNE. ML:1.9 0.00012744579999999999 1.3216 AML other m 2022-01-23T17:47:14.31
IV.ATPI.HNN. ML:1.9 0.00014620705 0.8576 AML other m 2022-01-23T17:47:15.60
IV.ATFO.HHN. ML:1.7 0.0000631 0.4 AML other m 2022-01-23T17:47:16.55
IV.ATFO.HHE. ML:1.7 0.0000644 1.04 AML other m 2022-01-23T17:47:16.57
IV.PII.HHN. ML:1.9 0.00008735000000000001 0.88 AML other m 2022-01-23T17:47:17.52
IV.CAFI.HNN. ML:1.4 0.000052723849 1.232 AML other m 2022-01-23T17:47:17.69
IV.PII.HHE. ML:2.1 0.000126 0.28 AML other m 2022-01-23T17:47:17.72
IV.ATVO.HNN. ML:1.8 0.000122150705 0.6272 AML other m 2022-01-23T17:47:18.53
IV.BDI.HHE. ML:1.5 0.00003285 0.34 AML other m 2022-01-23T17:47:19.21
IV.CRMI.HNE. ML:1.8 0.00012285625 1.168 AML other m 2022-01-23T17:47:22.30
IV.ATFO.HNE. ML:2.0 0.00012621389999999995 1.36 AML other m 2022-01-23T17:47:23.16
IV.BDI.HHN. ML:1.5 0.000036400000000000004 1.46 AML other m 2022-01-23T17:47:23.18
IV.ATFO.HNN. ML:2.0 0.0001368319 1.0912 AML other m 2022-01-23T17:47:27.26
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