Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 09-05-2022 and time 13:37:05 (Italy) in region 3 km S Impruneta (FI)

A magnitude ML 2.4 earthquake occured in region: 3 km S Impruneta (FI), on

  • 09-05-2022 11:37:05 (UTC)
  • 09-05-2022 13:37:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6580, 11.2540 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
Impruneta FI 3 14615 14615
San Casciano in Val di Pesa FI 6 17062 31677
Greve in Chianti FI 10 13862 45539
Bagno a Ripoli FI 12 25611 71150
Firenze FI 12 382808 453958
Tavarnelle Val di Pesa FI 13 7800 461758
Scandicci FI 13 50609 512367
Montespertoli FI 14 13537 525904
Barberino Val d'Elsa FI 15 4386 530290
Figline e Incisa Valdarno FI 16 23505 553795
Fiesole FI 17 13969 567764
Lastra a Signa FI 17 20156 587920
Rignano sull'Arno FI 18 8651 596571
Signa FI 19 19179 615750
Sesto Fiorentino FI 20 48958 664708
Pontassieve FI 20 20603 685311

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km S of Firenze (382808 inhabitants)
13 Km SE of Scandicci (50609 inhabitants)
28 Km SE of Prato (191150 inhabitants)
38 Km N of Siena (53903 inhabitants)
41 Km SE of Pistoia (90315 inhabitants)
55 Km W of Arezzo (99543 inhabitants)
64 Km E of Lucca (89046 inhabitants)
69 Km E of Pisa (89158 inhabitants)
77 Km E of Livorno (159219 inhabitants)
84 Km E of Viareggio (62467 inhabitants)
86 Km SW of Imola (69797 inhabitants)
86 Km SW of Faenza (58541 inhabitants)
89 Km SW of Forlì (117913 inhabitants)
93 Km S of Bologna (386663 inhabitants)
96 Km SW of Cesena (96758 inhabitants)
99 Km E of Massa (69479 inhabitants)
100 Km N of Grosseto (82087 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 2.4 2022-05-09
11:37:05		 43.6583 11.2543 8 2023-01-31
19:03:51		 Bollettino Sismico Italiano INGV 110636161
Reviewed
Rev100 		ML 2.4 2022-05-09
11:37:05		 43.6622 11.2442 7 2022-05-09
11:47:40		 Sala Sismica INGV-Roma 104397551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-09 11:37:05 ± 0.06
Latitude 43.6583 ± 0.0036
Longitude 11.2543 ± 0.0050
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 110636161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 414
Semi-minor axis of confidence ellipse (meter) 323
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 110
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 47
Number of associated phases, regardless of their use for origin computation 57
Number of defining phases 43
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) 1.41104
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 36
Type of magnitude ML
Reference to an origin 104397551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-09 11:47:40

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 110636161
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-10-18 16:09:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAGA.HHZ. 2022-05-09T11:39:35.38 3.0 undecidable manual Sn -1.48 0
SL.KOGS.BHZ. 2022-05-09T11:39:27.97 3.0 undecidable manual Sg 22.709999 0
1J.FX11.HHZ. 2022-05-09T11:39:22.44 3.0 undecidable manual Sn -0.39 0
IV.MSFR.HHZ. 2022-05-09T11:39:15.71 3.0 undecidable manual Sn 0.09 0
IV.ORI.HHZ. 2022-05-09T11:39:15.55 3.0 undecidable manual Sg 15.49 0
IV.TDS.HHZ. 2022-05-09T11:39:04.07 3.0 undecidable manual Sn -0.41 0
1J.FX14.HHZ.00 2022-05-09T11:38:17.79 3.0 negative manual Pn -4.56 0
RD.ORIF.BHZ. 2022-05-09T11:38:10.04 3.0 positive manual Pg 11.69 0
CH.FUSIO.HHZ. 2022-05-09T11:37:59.94 3.0 negative manual Pn 6.41 0
IV.MONC.HHZ. 2022-05-09T11:37:58.10 3.0 negative manual Pg 15.22 0
IV.ARVD.HHZ. 2022-05-09T11:37:43.42 3.0 undecidable manual Sg 6.7 0
GU.EQUI.HHZ. 2022-05-09T11:37:37.44 0.6 undecidable manual S 303 104.5176 50 0.85 33
IV.CSP1.EHZ. 2022-05-09T11:37:36.30 3.0 undecidable manual Sn -2.08 0
GU.PCP.HHZ. 2022-05-09T11:37:33.97 3.0 undecidable manual Pn 0.37 0
IV.MSSA.HHZ. 2022-05-09T11:37:31.45 0.3 undecidable manual P 298 156.621 50 -0.1 54
IV.PARC.HHZ. 2022-05-09T11:37:30.49 0.6 undecidable manual S 90 78.9654 50 0.69 37
IV.VISG.HHZ. 2022-05-09T11:37:25.00 0.6 undecidable manual S 14 60.5949 50 0.12 44
IV.GIUL.HHZ. 2022-05-09T11:37:24.66 3.0 undecidable manual Pn -1.69 0
GU.POPM.HHZ. 2022-05-09T11:37:24.10 0.6 undecidable manual S 317 58.497 50 -0.22 44
GU.EQUI.HHZ. 2022-05-09T11:37:24.48 0.3 undecidable manual P 303 104.5176 50 0.97 46
IV.LMD.HHZ. 2022-05-09T11:37:24.80 0.6 undecidable manual S 38 58.8966 50 0.36 42
IV.FNVD.HHZ. 2022-05-09T11:37:24.00 0.6 undecidable manual S 350 57.498 50 -0.05 45
IV.CRE.HHZ. 2022-05-09T11:37:23.80 0.3 undecidable manual S 94 56.1993 50 0.11 67
IV.SEI.HHZ. 2022-05-09T11:37:20.70 0.6 undecidable manual S 11 44.7219 50 0.06 46
IV.PARC.HHZ. 2022-05-09T11:37:20.40 0.6 undecidable manual P 90 78.9654 50 0.81 35
GU.CARD.HHZ. 2022-05-09T11:37:19.06 0.6 undecidable manual P 304 74.0703 50 0.24 42
IV.MOCL.EHZ. 2022-05-09T11:37:18.50 0.3 undecidable manual S 351 38.9277 50 -0.58 62
IV.MAGO.CHZ. 2022-05-09T11:37:17.16 0.1 undecidable manual P 229 64.2912 50 -0.15 88
IV.MPPT.EHZ. 2022-05-09T11:37:17.60 0.6 undecidable manual S 338 35.742 50 -0.63 41
GU.MAIM.HHZ. 2022-05-09T11:37:17.90 0.3 undecidable manual P 295 67.2771 50 0.12 66
GU.POPM.HHZ. 2022-05-09T11:37:16.27 0.6 undecidable manual P 317 58.497 50 -0.16 44
IV.PII.HHZ. 2022-05-09T11:37:16.22 0.1 undecidable manual P 277 58.8966 50 -0.27 86
IV.LMD.HHZ. 2022-05-09T11:37:16.42 0.1 undecidable manual P 38 58.8966 50 -0.07 90
IV.CRE.HHZ. 2022-05-09T11:37:16.19 0.1 undecidable manual P 94 56.1993 50 0.13 89
IV.VISG.HHZ. 2022-05-09T11:37:16.97 0.1 positive manual P 14 60.5949 50 0.22 87
IV.FNVD.HHZ. 2022-05-09T11:37:16.26 0.1 undecidable manual P 350 57.498 50 -0.01 91
IV.BOSL.HHZ. 2022-05-09T11:37:16.70 0.3 undecidable manual S 18 31.746 105 -0.33 67
IV.RUFI.EHZ. 2022-05-09T11:37:15.60 0.6 undecidable manual S 46 28.5492 106 -0.36 45
IV.SEI.HHZ. 2022-05-09T11:37:14.29 0.1 positive manual P 11 44.7219 50 -0.01 93
IV.MOCL.EHZ. 2022-05-09T11:37:13.05 0.1 positive manual P 351 38.9277 50 -0.35 88
IV.BOSL.HHZ. 2022-05-09T11:37:12.04 0.1 positive manual P 18 31.746 105 -0.17 92
IV.MPPT.EHZ. 2022-05-09T11:37:12.55 0.1 positive manual P 338 35.742 50 -0.36 88
IT.FIE.HGE. 2022-05-09T11:37:12.37 0.6 undecidable manual S 11 16.872 116 0.22 47
IV.CSNT.HHZ. 2022-05-09T11:37:12.90 0.6 undecidable manual S 172 20.7681 112 -0.5 44
IV.FIR.HNE. 2022-05-09T11:37:11.08 0.6 undecidable manual S 0 12.876 123 0.12 48
IV.RUFI.EHZ. 2022-05-09T11:37:11.58 0.1 positive manual P 46 28.5492 106 -0.02 96
ZH.T1646.EHN. 2022-05-09T11:37:11.29 0.6 undecidable manual S 270 11.6772 125 0.66 42
IV.OSSC.HHZ. 2022-05-09T11:37:11.40 0.6 undecidable manual S 183 14.9739 119 -0.19 47
IV.CSNT.HHZ. 2022-05-09T11:37:09.84 0.1 positive manual P 172 20.7681 112 -0.28 92
IT.FIE.HGE. 2022-05-09T11:37:09.71 0.1 undecidable manual P 11 16.872 116 0.31 92
ZH.T1647.EHZ. 2022-05-09T11:37:09.68 0.6 undecidable manual S 141 7.3815 139 0.18 48
ZH.T1646.EHN. 2022-05-09T11:37:08.79 0.1 negative manual P 270 11.6772 125 0.27 94
IV.OSSC.HHZ. 2022-05-09T11:37:08.98 0.1 positive manual P 183 14.9739 119 -0.09 97
ZH.T1648.HNN. 2022-05-09T11:37:08.46 0.6 undecidable manual S 70 2.3976 164 -0.19 48
IV.FIR.HNE. 2022-05-09T11:37:08.85 0.1 undecidable manual P 0 12.876 123 0.14 96
ZH.T1647.EHZ. 2022-05-09T11:37:07.91 0.1 negative manual P 141 7.3815 139 0.04 99
ZH.T1648.HNN. 2022-05-09T11:37:07.34 0.1 negative manual P 70 2.3976 164 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.OSSC.HHN. ML:2.6 0.004435000000000001 0.52 AML other m 2022-05-09T11:37:12.11
IV.OSSC.HHE. ML:2.8 0.007095 0.58 AML other m 2022-05-09T11:37:12.00
IV.CSNT.HHN. ML:2.4 0.0020350000000000004 1.28 AML other m 2022-05-09T11:37:14.93
IV.CSNT.HHE. ML:2.7 0.00336 0.82 AML other m 2022-05-09T11:37:15.50
IV.RUFI.EHE. ML:2.3 0.00114 1.06 AML other m 2022-05-09T11:37:16.11
IV.BOSL.HHN. ML:2.4 0.001077 0.2 AML other m 2022-05-09T11:37:17.14
IV.BOSL.HHE. ML:2.6 0.0016950000000000001 0.2 AML other m 2022-05-09T11:37:17.12
IV.MPPT.EHN. ML:2.6 0.0017050000000000001 0.6 AML other m 2022-05-09T11:37:18.50
IV.MPPT.EHE. ML:2.8 0.002835 0.48 AML other m 2022-05-09T11:37:18.23
IV.MOCL.EHE. ML:2.9 0.00299 0.64 AML other m 2022-05-09T11:37:19.13
IV.MOCL.EHN. ML:2.9 0.0028250000000000003 0.76 AML other m 2022-05-09T11:37:19.39
IV.RUFI.EHN. ML:2.3 0.00113 0.54 AML other m 2022-05-09T11:37:19.44
IV.CRE.HHN. ML:2.2 0.0003755 0.32 AML other m 2022-05-09T11:37:24.45
IV.CRE.HHE. ML:2.4 0.0005295 1.6 AML other m 2022-05-09T11:37:25.80
IV.SEI.HHN. ML:3.0 0.003355 0.42 AML other m 2022-05-09T11:37:25.09
IV.SEI.HHE. ML:2.8 0.0019399999999999999 0.42 AML other m 2022-05-09T11:37:25.79
IV.VISG.HHE. ML:2.3 0.0003795 0.74 AML other m 2022-05-09T11:37:25.78
IV.FNVD.HHE. ML:2.5 0.0006895 1.64 AML other m 2022-05-09T11:37:25.10
IV.VISG.HHN. ML:2.2 0.0003035 0.4 AML other m 2022-05-09T11:37:25.96
IV.LMD.HHN. ML:2.4 0.0004935 0.4 AML other m 2022-05-09T11:37:25.77
IV.MAGO.CHN. ML:2.3 0.000372 0.2 AML other m 2022-05-09T11:37:26.15
IV.LMD.HHE. ML:2.3 0.000411 0.42 AML other m 2022-05-09T11:37:26.47
IV.PII.HHE. ML:2.4 0.0005015000000000001 0.48 AML other m 2022-05-09T11:37:26.73
IV.FNVD.HHN. ML:2.6 0.000937 0.42 AML other m 2022-05-09T11:37:27.28
IV.MAGO.CHE. ML:2.2 0.0003175 0.62 AML other m 2022-05-09T11:37:28.68
GU.MAIM.HHN. ML:2.0 0.000174 0.5 AML other m 2022-05-09T11:37:29.35
IV.PII.HHN. ML:2.3 0.00044999999999999993 0.44 AML other m 2022-05-09T11:37:29.79
GU.CARD.HHE. ML:2.3 0.000323 1 AML other m 2022-05-09T11:37:31.25
GU.MAIM.HHE. ML:1.8 0.0001027 0.46 AML other m 2022-05-09T11:37:31.75
GU.CARD.HHN. ML:2.5 0.00046950000000000003 0.36 AML other m 2022-05-09T11:37:31.40
IV.PARC.HHN. ML:2.1 0.0001885 0.56 AML other m 2022-05-09T11:37:35.63
IV.PARC.HHE. ML:2.1 0.000176 1.6 AML other m 2022-05-09T11:37:36.12
GU.EQUI.HHE. ML:2.1 0.000124 1.18 AML other m 2022-05-09T11:37:39.19
GU.EQUI.HHN. ML:2.2 0.000131 1.14 AML other m 2022-05-09T11:37:39.97
IV.CSP1.EHE. ML:2.3 0.0000904 1 AML other m 2022-05-09T11:38:01.62
IV.CSP1.EHN. ML:2.4 0.0001115 1.38 AML other m 2022-05-09T11:38:03.14
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