Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 23-03-2022 and time 16:54:56 (UTC) in region 2 km W San Godenzo (FI)

A magnitude ML 2.1 earthquake occured in region: 2 km W San Godenzo (FI), on

  • 23-03-2022 16:54:56 (UTC)
  • 23-03-2022 17:54:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.9220, 11.5960 at 8 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
San Godenzo FI 2 1167 1167
Dicomano FI 7 5515 6682
Londa FI 7 1840 8522
Vicchio FI 11 8044 16566
Rufina FI 14 7346 23912
Premilcuore FC 16 799 24711
Borgo San Lorenzo FI 17 18211 42922
Marradi FI 17 3139 46061
Pratovecchio Stia AR 18 5845 51906
Pelago FI 18 7660 59566
Portico e San Benedetto FC 19 756 60322

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NE of Firenze (382808 inhabitants)
38 Km E of Scandicci (50609 inhabitants)
40 Km E of Prato (191150 inhabitants)
47 Km SW of Faenza (58541 inhabitants)
49 Km SW of Forlì (117913 inhabitants)
49 Km S of Imola (69797 inhabitants)
54 Km E of Pistoia (90315 inhabitants)
56 Km NW of Arezzo (99543 inhabitants)
57 Km W of Cesena (96758 inhabitants)
67 Km SE of Bologna (386663 inhabitants)
70 Km NE of Siena (53903 inhabitants)
73 Km SW of Ravenna (159116 inhabitants)
79 Km W of Rimini (147750 inhabitants)
88 Km E of Lucca (89046 inhabitants)
97 Km SE of Modena (184973 inhabitants)
99 Km E of Pisa (89158 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 2.1 2022-03-23
16:54:56		 43.9223 11.5958 8 2022-07-08
12:33:53		 Bollettino Sismico Italiano INGV 104249411
Reviewed
Rev100 		ML 2.1 2022-03-23
16:54:56		 43.9272 11.5877 9 2022-03-23
17:02:36		 Sala Sismica INGV-Roma 102292931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-03-23 16:54:56 ± 0.05
Latitude 43.9223 ± 0.0027
Longitude 11.5958 ± 0.0037
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 104249411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 267
Semi-minor axis of confidence ellipse (meter) 206
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 210
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
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) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.10432
Epicentral distance of station farthest from the epicenter (degree) 0.79770
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 47
Type of magnitude ML
Reference to an origin 104249411
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-05-06 07:06:15

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 48
Type of magnitude ML
Reference to an origin 102292931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-03-23 17:02:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2022-03-23T16:55:23.14 0.6 undecidable manual S 119 86.6466 50 0.37 42
IV.NARO.HHZ. 2022-03-23T16:55:22.49 0.6 undecidable manual S 113 86.1471 50 -0.14 44
GU.POPM.HHZ. 2022-03-23T16:55:18.25 0.3 undecidable manual S 282 68.376 50 0.37 65
IV.CSNT.HHZ. 2022-03-23T16:55:14.16 0.6 undecidable manual S 206 55.5 50 -0.31 45
IV.CRMI.HHZ. 2022-03-23T16:55:13.31 0.3 undecidable manual S 254 51.2154 50 -0.01 72
IV.OSSC.HHZ. 2022-03-23T16:55:13.90 0.3 undecidable manual S 213 52.4031 50 0.28 68
IV.FNVD.HHZ. 2022-03-23T16:55:12.67 0.6 undecidable manual S 306 46.5201 50 0.62 42
IV.ATVO.HHZ. 2022-03-23T16:55:12.26 0.6 undecidable manual P 132 88.4448 50 0.33 42
IV.PII.HHZ. 2022-03-23T16:55:12.00 0.1 undecidable manual P 256 88.5447 50 0.06 88
IV.ATPI.EHZ. 2022-03-23T16:55:11.47 0.3 undecidable manual P 129 83.1501 50 0.35 63
IV.NARO.HHZ. 2022-03-23T16:55:11.79 0.3 undecidable manual P 113 86.1471 50 0.22 65
IV.ATMI.HHZ. 2022-03-23T16:55:11.57 0.6 undecidable manual P 140 84.6486 50 0.22 43
IV.PIEI.HHZ. 2022-03-23T16:55:11.37 0.6 undecidable manual P 119 86.6466 50 -0.28 42
IV.CRE.HHZ. 2022-03-23T16:55:11.21 0.6 undecidable manual S 140 44.1225 50 -0.2 47
IV.MPPT.EHZ. 2022-03-23T16:55:10.35 0.3 undecidable manual S 276 40.5261 50 -0.12 72
IV.BRIS.HHZ. 2022-03-23T16:55:09.60 0.6 undecidable manual S 22 36.1416 50 0.3 46
IV.MOCL.EHZ. 2022-03-23T16:55:08.59 0.6 undecidable manual S 286 34.3434 103 -0.1 48
GU.POPM.HHZ. 2022-03-23T16:55:08.73 0.1 undecidable manual P 282 68.376 50 -0.1 91
IV.FIR.HNE. 2022-03-23T16:55:07.90 0.6 undecidable manual S 239 31.8459 104 0.07 49
IV.VISG.HHZ. 2022-03-23T16:55:07.85 0.3 undecidable manual S 337 32.2455 104 -0.13 73
IV.SSP9.EHZ. 2022-03-23T16:55:07.00 0.3 undecidable manual P 132 57.7977 50 -0.2 68
IV.OSSC.HHZ. 2022-03-23T16:55:06.21 0.1 undecidable manual P 213 52.4031 50 -0.16 93
IV.CRMI.HHZ. 2022-03-23T16:55:06.13 0.1 positive manual P 254 51.2154 50 -0.07 95
IV.CSNT.HHZ. 2022-03-23T16:55:06.72 0.3 undecidable manual P 206 55.5 50 -0.14 70
IT.FIE.HGZ. 2022-03-23T16:55:05.97 0.3 undecidable manual S 242 27.2505 106 -0.34 70
IV.MTRZ.HHZ. 2022-03-23T16:55:05.72 0.1 undecidable manual P 343 45.4212 50 0.43 89
IV.FNVD.HHZ. 2022-03-23T16:55:05.24 0.1 undecidable manual P 306 46.5201 50 -0.23 93
IV.SEI.HHZ. 2022-03-23T16:55:05.13 0.3 undecidable manual S 308 23.9538 108 -0.07 75
IV.MPPT.EHZ. 2022-03-23T16:55:04.32 0.1 positive manual P 276 40.5261 50 -0.23 93
IV.CRE.HHZ. 2022-03-23T16:55:04.70 0.1 undecidable manual P 140 44.1225 50 -0.4 90
IV.LMD.HHZ. 2022-03-23T16:55:03.86 0.3 undecidable manual S 27 19.3695 112 0.15 74
IV.BOSL.HHZ. 2022-03-23T16:55:03.51 0.3 undecidable manual S 273 17.6712 114 0.33 71
IV.MOCL.EHZ. 2022-03-23T16:55:03.28 0.1 positive manual P 286 34.3434 103 -0.24 94
IV.BRIS.HHZ. 2022-03-23T16:55:03.77 0.1 positive manual P 22 36.1416 50 -0.1 97
IV.FIR.HNE. 2022-03-23T16:55:02.96 0.3 undecidable manual P 239 31.8459 104 -0.06 74
IV.VISG.HHZ. 2022-03-23T16:55:02.86 0.1 positive manual P 337 32.2455 104 -0.25 94
IT.FIE.HGZ. 2022-03-23T16:55:02.16 0.1 undecidable manual P 242 27.2505 106 0.01 100
IV.RUFI.EHZ. 2022-03-23T16:55:01.64 0.3 undecidable manual S 216 11.5773 124 0.32 72
IV.SEI.HHZ. 2022-03-23T16:55:01.36 0.1 undecidable manual P 308 23.9538 108 -0.14 98
IV.LMD.HHZ. 2022-03-23T16:55:00.54 0.1 positive manual P 27 19.3695 112 -0.11 99
IV.BOSL.HHZ. 2022-03-23T16:55:00.64 0.1 positive manual P 273 17.6712 114 0.3 96
IV.RUFI.EHZ. 2022-03-23T16:54:59.50 0.1 positive manual P 216 11.5773 124 0.23 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RUFI.EHN. ML:2.1 0.001590136 0.256 AML other m 2022-03-23T16:55:01.77
IV.RUFI.EHE. ML:2.0 0.0013058955 0.448 AML other m 2022-03-23T16:55:01.95
IV.LMD.HHE. ML:2.4 0.0018601615 0.2176 AML other m 2022-03-23T16:55:05.16
IV.LMD.HHN. ML:2.6 0.00313 0.24 AML other m 2022-03-23T16:55:05.17
IV.VISG.HHN. ML:1.8 0.0003190119 0.1408 AML other m 2022-03-23T16:55:08.79
IV.VISG.HHE. ML:1.8 0.0003029272 0.1792 AML other m 2022-03-23T16:55:08.43
IV.MPPT.EHE. ML:2.1 0.00046808235 0.2944 AML other m 2022-03-23T16:55:10.89
IV.MPPT.EHN. ML:2.2 0.0006435 0.24 AML other m 2022-03-23T16:55:11.22
IV.MOCL.EHE. ML:2.1 0.0005248293 0.2688 AML other m 2022-03-23T16:55:12.45
IV.MOCL.EHN. ML:2.0 0.0004562288 0.128 AML other m 2022-03-23T16:55:09.59
IV.CRE.HHN. ML:2.2 0.00053773215 0.1792 AML other m 2022-03-23T16:55:13.77
IV.CRE.HHE. ML:2.2 0.00046944930000000003 0.2048 AML other m 2022-03-23T16:55:13.08
IV.FNVD.HHN. ML:2.0 0.0002578692 0.384 AML other m 2022-03-23T16:55:17.67
IV.BRIS.HNN. ML:2.4 0.000978 0.42 AML other m 2022-03-23T16:55:13.44
IV.BRIS.HHN. ML:2.0 0.00039349999999999997 0.42 AML other m 2022-03-23T16:55:13.44
IV.CRMI.HHN. ML:2.3 0.00047650000000000004 0.34 AML other m 2022-03-23T16:55:13.82
IV.CRMI.HHE. ML:2.0 0.000243 0.32 AML other m 2022-03-23T16:55:14.20
IV.OSSC.HHE. ML:2.6 0.0010400000000000001 0.48 AML other m 2022-03-23T16:55:14.13
IV.OSSC.HHN. ML:2.3 0.0005227259 0.2816 AML other m 2022-03-23T16:55:14.07
IV.CSNT.HHE. ML:2.3 0.000503 1.36 AML other m 2022-03-23T16:55:15.74
IV.CSNT.HHN. ML:2.4 0.0006815 0.44 AML other m 2022-03-23T16:55:15.00
IV.SSP9.EHN. ML:1.9 0.0001636759 0.2432 AML other m 2022-03-23T16:55:16.14
IV.FNVD.HHE. ML:1.9 0.00024548875 0.3968 AML other m 2022-03-23T16:55:16.93
IV.BRIS.HNE. ML:2.2 0.000676 0.88 AML other m 2022-03-23T16:55:17.19
IV.BRIS.HHE. ML:1.8 0.00027132915 0.4224 AML other m 2022-03-23T16:55:17.20
GU.POPM.HHE. ML:2.1 0.0002149124 0.2432 AML other m 2022-03-23T16:55:18.73
GU.POPM.HHN. ML:2.3 0.0003444611 0.1792 AML other m 2022-03-23T16:55:19.26
IV.MTRZ.HHN. ML:2.1 0.0003769649 0.3456 AML other m 2022-03-23T16:55:17.79
IV.MTRZ.HHE. ML:2.2 0.0004581558 0.8192 AML other m 2022-03-23T16:55:20.04
IV.SSP9.EHE. ML:1.8 0.0001482 0.28 AML other m 2022-03-23T16:55:21.48
IV.PIEI.HHE. ML:1.7 0.000065899905 0.1408 AML other m 2022-03-23T16:55:24.73
IV.PII.HHN. ML:2.2 0.00020400000000000003 0.28 AML other m 2022-03-23T16:55:25.59
IV.PII.HHE. ML:2.2 0.00017951315 0.3456 AML other m 2022-03-23T16:55:24.67
IV.ATVO.HHE. ML:2.2 0.000188 1.66 AML other m 2022-03-23T16:55:26.11
IV.ATPI.EHN. ML:1.8 0.00008595773500000001 0.3328 AML other m 2022-03-23T16:55:26.48
IV.NARO.HHN. ML:1.5 0.00004216919 0.256 AML other m 2022-03-23T16:55:27.07
IV.ATVO.HHN. ML:1.9 0.00010005 0.4 AML other m 2022-03-23T16:55:28.06
IV.NARO.HHE. ML:1.6 0.00004615 0.48 AML other m 2022-03-23T16:55:28.89
IV.ATPI.EHE. ML:1.8 0.0000886 0.5 AML other m 2022-03-23T16:55:30.54
IV.ATMI.HHN. ML:2.3 0.0002335 0.4 AML other m 2022-03-23T16:55:31.54
IV.ATMI.HHE. ML:2.3 0.0002385 0.28 AML other m 2022-03-23T16:55:31.67
IV.MTRZ.HNE. ML:2.4 0.00079422145 1.1648 AML other m 2022-03-23T16:55:20.03
IV.MTRZ.HNN. ML:2.1 0.00035253659999999996 0.4096 AML other m 2022-03-23T16:55:19.52
IV.CRMI.HNE. ML:2.1 0.0003503519 0.3456 AML other m 2022-03-23T16:55:14.04
IV.CRMI.HNN. ML:2.3 0.0005429157500000001 0.32 AML other m 2022-03-23T16:55:13.83
IV.PIEI.HNE. ML:2.1 0.00014585329999999998 0.4992 AML other m 2022-03-23T16:55:24.58
IV.ATVO.HNE. ML:2.2 0.00018771929999999998 0.2816 AML other m 2022-03-23T16:55:27.08
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
Waveforms Seismic signals in miniseed + resp format Download