Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 23-01-2022 and time 15:29:44 (UTC) in region 3 km NE Castel San Niccolò (AR)

A magnitude ML 1.6 earthquake occured in region: 3 km NE Castel San Niccolò (AR), on

  • 23-01-2022 15:29:44 (UTC)
  • 23-01-2022 16:29:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.7580, 11.7270 at 7 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 San Niccolò AR 3 2707 2707
Pratovecchio Stia AR 4 5845 8552
Poppi AR 5 6160 14712
Ortignano Raggiolo AR 9 878 15590
Montemignaio AR 9 566 16156
Bibbiena AR 10 12241 28397
Castel Focognano AR 15 3149 31546
Chitignano AR 16 899 32445
Londa FI 17 1840 34285
Reggello FI 17 16290 50575
Pelago FI 18 7660 58235
Chiusi della Verna AR 18 2023 60258
Talla AR 18 1062 61320
Loro Ciuffenna AR 20 5819 67139

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 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)
58 Km SW of Forlì (117913 inhabitants)
58 Km NE of Siena (53903 inhabitants)
59 Km SW of Cesena (96758 inhabitants)
60 Km S of Faenza (58541 inhabitants)
66 Km S of Imola (69797 inhabitants)
68 Km E of Pistoia (90315 inhabitants)
75 Km W of Rimini (147750 inhabitants)
83 Km SW of Ravenna (159116 inhabitants)
88 Km SE of Bologna (386663 inhabitants)
90 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 1.6 2022-01-23
15:29:44		 43.7585 11.727 7 2022-07-08
12:33:57		 Bollettino Sismico Italiano INGV 104704371
Reviewed
Rev100 		ML 1.6 2022-01-23
15:29:44		 43.7708 11.7332 8 2022-01-23
15:40:20		 Sala Sismica INGV-Roma 100095151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-01-23 15:29:44 ± 0.06
Latitude 43.7585 ± 0.0036
Longitude 11.7270 ± 0.0037
Depth (km) 7 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 104704371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 375
Semi-minor axis of confidence ellipse (meter) 247
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 32
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
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 49
Number of defining phases 38
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.61963
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 100095151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-01-23 15:40:20

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 46
Type of magnitude ML
Reference to an origin 104704371
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-05-16 10:22:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IX.SRN3.HHZ.02 2022-01-23T15:31:32.50 3.0 undecidable manual Sn 0.97 0
IV.CRJA.HHZ. 2022-01-23T15:31:14.03 3.0 undecidable manual Pn 6.34 0
IV.PTRJ.HHZ. 2022-01-23T15:31:07.27 3.0 undecidable manual Sn 3.24 0
MN.TRI.HHZ. 2022-01-23T15:30:58.68 3.0 undecidable manual Sg 8.87 0
IV.ZEN8.EHZ. 2022-01-23T15:30:47.54 3.0 undecidable manual Sg 5.3 0
IV.CADC.EHZ. 2022-01-23T15:30:42.26 3.0 undecidable manual Sn -1.17 0
OT.OT17.EHZ. 2022-01-23T15:30:36.63 3.0 positive manual Pn 5.67 0
IV.VCEL.EHZ. 2022-01-23T15:30:36.70 3.0 undecidable manual Sn -0.4 0
IV.QLNO.HHZ. 2022-01-23T15:30:33.74 3.0 undecidable manual Pg 11.2 0
IV.MOCO.HHZ. 2022-01-23T15:30:29.32 3.0 undecidable manual Pn -2.91 0
MN.TRI.HHZ. 2022-01-23T15:30:18.64 3.0 negative manual Pn -1.26 0
IV.CRMI.HHZ. 2022-01-23T15:30:03.87 0.6 undecidable manual S 274 59.9955 50 0.38 44
IV.MPPT.EHZ. 2022-01-23T15:30:02.32 0.3 undecidable manual S 294 55.5 50 0.04 71
IV.VISG.HHZ. 2022-01-23T15:30:01.57 0.6 undecidable manual S 334 53.2023 50 -0.09 47
IV.BRIS.HHN. 2022-01-23T15:30:01.82 0.6 undecidable manual S 3 51.8037 50 0.53 43
IV.BADI.EHE. 2022-01-23T15:30:00.69 0.6 undecidable manual S 123 49.9167 50 -0.09 47
IV.CSNT.HHZ. 2022-01-23T15:30:00.17 0.6 undecidable manual S 228 47.2194 50 0.09 47
IV.OSSC.HHZ. 2022-01-23T15:29:59.90 0.6 undecidable manual S 236 46.62 50 -0.01 48
IV.PARC.HHZ. 2022-01-23T15:29:58.27 0.6 undecidable manual S 106 42.8238 50 -0.62 42
IV.MTRZ.HNN. 2022-01-23T15:29:57.38 0.6 undecidable manual P 339 66.0894 50 1.16 31
IV.SSP9.EHZ. 2022-01-23T15:29:57.30 0.3 undecidable manual S 122 38.3283 100 -0.31 69
IV.BOSL.HHZ. 2022-01-23T15:29:56.03 0.6 undecidable manual S 304 34.0437 101 -0.12 48
IT.FIE.HGE. 2022-01-23T15:29:56.09 0.6 undecidable manual S 279 35.0427 101 -0.39 45
IV.ATVO.HHZ. 2022-01-23T15:29:56.70 0.3 undecidable manual P 127 68.7756 50 0.07 69
IV.CRMI.HHZ. 2022-01-23T15:29:55.46 0.3 undecidable manual P 274 59.9955 50 0.17 68
IV.LMD.HHZ. 2022-01-23T15:29:55.98 0.3 undecidable manual S 357 35.4423 101 -0.62 63
IV.ATMI.HHZ. 2022-01-23T15:29:55.98 0.3 undecidable manual P 137 64.0914 50 0.07 69
IV.CAFI.HHZ. 2022-01-23T15:29:54.36 0.1 undecidable manual P 158 51.4152 50 0.41 88
IV.BRIS.HHN. 2022-01-23T15:29:54.31 0.3 undecidable manual P 3 51.8037 50 0.29 68
IV.MPPT.EHZ. 2022-01-23T15:29:54.54 0.3 undecidable manual P 294 55.5 50 -0.05 71
IV.VISG.HHZ. 2022-01-23T15:29:54.13 0.3 undecidable manual P 334 53.2023 50 -0.1 70
IV.CPGN.EHZ. 2022-01-23T15:29:53.67 0.3 undecidable manual P 84 47.8188 50 0.27 68
IV.BADI.EHE. 2022-01-23T15:29:53.74 0.3 undecidable manual P 123 49.9167 50 0.01 72
IV.CSNT.HHZ. 2022-01-23T15:29:52.95 0.6 undecidable manual P 228 47.2194 50 -0.37 45
IV.PARC.HHZ. 2022-01-23T15:29:52.08 0.3 undecidable manual P 106 42.8238 50 -0.56 64
IV.OSSC.HHZ. 2022-01-23T15:29:52.90 0.1 undecidable manual P 236 46.62 50 -0.32 90
IV.SEI.HHZ. 2022-01-23T15:29:52.60 0.3 undecidable manual P 318 44.1225 50 -0.23 69
IV.CRE.HHZ. 2022-01-23T15:29:52.89 0.3 undecidable manual S 131 23.754 106 0.22 72
IT.FIE.HGE. 2022-01-23T15:29:51.10 0.1 undecidable manual P 279 35.0427 101 -0.14 96
IV.SFI.EHZ. 2022-01-23T15:29:51.11 0.3 undecidable manual S 31 18.87 110 0.06 75
IV.RUFI.EHZ. 2022-01-23T15:29:51.52 0.3 undecidable manual S 297 19.5693 109 0.25 72
IV.SSP9.EHZ. 2022-01-23T15:29:51.82 0.3 undecidable manual P 122 38.3283 100 -0.07 72
IV.LMD.HHZ. 2022-01-23T15:29:50.85 0.1 positive manual P 357 35.4423 101 -0.46 90
IV.BOSL.HHZ. 2022-01-23T15:29:50.93 0.1 undecidable manual P 304 34.0437 101 -0.12 96
IV.CRE.HHZ. 2022-01-23T15:29:49.07 0.1 undecidable manual P 131 23.754 106 0.03 100
IV.SFI.EHZ. 2022-01-23T15:29:48.18 0.1 positive manual P 31 18.87 110 0.08 100
IV.RUFI.EHZ. 2022-01-23T15:29:48.51 0.1 undecidable manual P 297 19.5693 109 0.28 96
IV.ASQU.HHZ. 2022-01-23T15:29:47.61 0.6 undecidable manual S 50 6.5934 136 0.23 49
IV.ASQU.HHZ. 2022-01-23T15:29:46.30 0.1 undecidable manual P 50 6.5934 136 0.31 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASQU.HHN. ML:2.3 0.003835 0.2 AML other m 2022-01-23T15:29:47.80
IV.ASQU.HHE. ML:2.2 0.003205 0.2 AML other m 2022-01-23T15:29:48.41
IV.SFI.HNE. ML:1.7 0.0004408205 0.2048 AML other m 2022-01-23T15:29:51.53
IV.SFI.EHE. ML:1.7 0.0004215976 0.192 AML other m 2022-01-23T15:29:51.43
IV.RUFI.EHN. ML:1.9 0.0006190274 0.1792 AML other m 2022-01-23T15:29:51.64
IV.RUFI.EHE. ML:1.9 0.0007035 0.36 AML other m 2022-01-23T15:29:51.86
IV.SFI.HNN. ML:1.6 0.0003398043 0.2176 AML other m 2022-01-23T15:29:53.01
IV.SFI.EHN. ML:1.6 0.0003735 0.22 AML other m 2022-01-23T15:29:53.02
IV.CRE.HHE. ML:1.4 0.00018504245 0.1792 AML other m 2022-01-23T15:29:53.78
IV.CRE.HHN. ML:1.7 0.00029400000000000004 0.2 AML other m 2022-01-23T15:29:54.72
IV.BOSL.HHN. ML:1.4 0.000096596675 0.256 AML other m 2022-01-23T15:29:56.31
IV.LMD.HHE. ML:1.8 0.00024542520000000003 0.2048 AML other m 2022-01-23T15:29:56.35
IV.LMD.HHN. ML:1.7 0.00022695514999999998 0.1664 AML other m 2022-01-23T15:29:56.65
IV.BOSL.HHE. ML:1.2 0.00007256830000000001 0.1664 AML other m 2022-01-23T15:29:57.66
IV.SSP9.EHN. ML:1.4 0.000091878875 0.4352 AML other m 2022-01-23T15:29:59.05
IV.PARC.HHE. ML:1.3 0.00007185 0.4 AML other m 2022-01-23T15:29:59.63
IV.CSNT.HHN. ML:1.4 0.000079701255 0.1792 AML other m 2022-01-23T15:30:00.74
IV.PARC.HHN. ML:1.4 0.000086350325 0.2432 AML other m 2022-01-23T15:30:00.76
IV.SSP9.EHE. ML:1.3 0.00007006043 0.2816 AML other m 2022-01-23T15:30:01.83
IV.MPPT.EHE. ML:1.6 0.000090232115 0.2432 AML other m 2022-01-23T15:30:03.14
IV.OSSC.HHE. ML:1.5 0.0000864 1.46 AML other m 2022-01-23T15:30:03.09
IV.CAFI.HHE. ML:1.4 0.000066186825 0.384 AML other m 2022-01-23T15:30:03.23
IV.CAFI.HNE. ML:1.5 0.00007324843 0.384 AML other m 2022-01-23T15:30:03.43
IV.OSSC.HHN. ML:1.4 0.00008225 0.54 AML other m 2022-01-23T15:30:03.31
IV.SEI.HHE. ML:1.6 0.0001372507 0.448 AML other m 2022-01-23T15:30:03.69
IV.CAFI.HHN. ML:1.3 0.00005124539 0.2688 AML other m 2022-01-23T15:30:03.71
IV.CAFI.HNN. ML:1.3 0.00005038783 0.256 AML other m 2022-01-23T15:30:03.84
IV.CRMI.HHN. ML:1.6 0.000076 0.36 AML other m 2022-01-23T15:30:04.02
IV.CPGN.EHE. ML:1.6 0.00010971652 0.3456 AML other m 2022-01-23T15:30:04.44
IV.SEI.HHN. ML:1.8 0.0001865 0.44 AML other m 2022-01-23T15:30:04.54
IV.CRMI.HNN. ML:2.0 0.00021281145000000002 0.5504 AML other m 2022-01-23T15:30:04.56
IV.CSNT.HHE. ML:1.5 0.00009114999999999999 0.42 AML other m 2022-01-23T15:30:04.69
IV.CPGN.EHN. ML:2.0 0.00028914744999999995 1.0368 AML other m 2022-01-23T15:30:05.73
IV.MPPT.EHN. ML:1.6 0.00009240981500000001 1.5264 AML other m 2022-01-23T15:30:05.15
IV.CPGN.HNE. ML:2.2 0.00044162175 1.1296 AML other m 2022-01-23T15:30:06.73
IV.CPGN.HNN. ML:2.5 0.0009325000000000001 0.58 AML other m 2022-01-23T15:30:06.57
IV.CRMI.HHE. ML:1.2 0.000036787 0.6016 AML other m 2022-01-23T15:30:07.27
IV.ATMI.HHE. ML:1.9 0.00014187445000000002 0.2816 AML other m 2022-01-23T15:30:08.38
IV.ATMI.HHN. ML:1.8 0.00013350745 0.3072 AML other m 2022-01-23T15:30:09.59
IV.ATVO.HHE. ML:1.7 0.00008835 1.22 AML other m 2022-01-23T15:30:09.26
IV.ATVO.HNE. ML:2.0 0.00018756505000000001 0.5504 AML other m 2022-01-23T15:30:09.68
IV.ATVO.HHN. ML:1.7 0.00008219999999999999 0.42 AML other m 2022-01-23T15:30:10.65
IV.MURB.HHN. ML:2.0 0.0001365 0.24 AML other m 2022-01-23T15:30:12.30
IV.MURB.HHE. ML:1.9 0.00009702836500000001 0.2304 AML other m 2022-01-23T15:30:18.12
GU.MAIM.HHN. ML:1.3 0.000022334575000000003 0.5632 AML other m 2022-01-23T15:30:21.66
GU.MAIM.HHE. ML:1.2 0.00001627425145 0.6016 AML other m 2022-01-23T15:30:21.95
IV.PESA.HHN. ML:2.1 0.000139563395 0.0512 AML other m 2022-01-23T15:30:23.15
IV.PESA.HHE. ML:1.9 0.000098199885 0.0384 AML other m 2022-01-23T15:30:23.86
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