Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 08-05-2022 and time 12:12:56 (Italy) in region 4 km SW Impruneta (FI)

A magnitude ML 2.3 earthquake occured in region: 4 km SW Impruneta (FI), on

  • 08-05-2022 10:12:56 (UTC)
  • 08-05-2022 12:12:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6600, 11.2300 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
San Casciano in Val di Pesa FI 4 17062 17062
Impruneta FI 4 14615 31677
Greve in Chianti FI 11 13862 45539
Scandicci FI 12 50609 96148
Tavarnelle Val di Pesa FI 12 7800 103948
Firenze FI 13 382808 486756
Montespertoli FI 13 13537 500293
Bagno a Ripoli FI 13 25611 525904
Barberino Val d'Elsa FI 14 4386 530290
Lastra a Signa FI 16 20156 550446
Fiesole FI 17 13969 564415
Signa FI 17 19179 583594
Figline e Incisa Valdarno FI 18 23505 607099
Montelupo Fiorentino FI 19 14098 621197
Campi Bisenzio FI 19 46166 667363
Rignano sull'Arno FI 19 8651 676014
Sesto Fiorentino FI 19 48958 724972
Certaldo FI 20 16121 741093

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km SE of Scandicci (50609 inhabitants)
13 Km S of Firenze (382808 inhabitants)
27 Km SE of Prato (191150 inhabitants)
39 Km N of Siena (53903 inhabitants)
40 Km SE of Pistoia (90315 inhabitants)
57 Km W of Arezzo (99543 inhabitants)
62 Km E of Lucca (89046 inhabitants)
67 Km E of Pisa (89158 inhabitants)
75 Km E of Livorno (159219 inhabitants)
82 Km E of Viareggio (62467 inhabitants)
86 Km SW of Imola (69797 inhabitants)
87 Km SW of Faenza (58541 inhabitants)
90 Km SW of Forlì (117913 inhabitants)
93 Km S of Bologna (386663 inhabitants)
97 Km E of Massa (69479 inhabitants)
97 Km SW of Cesena (96758 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 2.3 2022-05-08
10:12:56		 43.6597 11.2303 7 2023-01-31
19:03:21		 Bollettino Sismico Italiano INGV 107124631
Reviewed
Rev100 		ML 2.3 2022-05-08
10:12:55		 43.6597 11.2498 5 2022-05-08
10:30:39		 Sala Sismica INGV-Roma 104341511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-08 10:12:56 ± 0.08
Latitude 43.6597 ± 0.0036
Longitude 11.2303 ± 0.0062
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 107124631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 494
Semi-minor axis of confidence ellipse (meter) 152
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 264
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 50
Number of associated phases, regardless of their use for origin computation 74
Number of defining phases 58
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.17901
Number of stations at which the event was observed 48
Number of stations from which data was used for origin computation 33
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 74
Type of magnitude ML
Reference to an origin 107124631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-07-11 14:07:07

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 74
Type of magnitude ML
Reference to an origin 104341511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-08 10:30:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CET2.HHZ. 2022-05-08T10:14:22.12 3.0 undecidable manual Pn 4.84 0
IV.POFI.HHZ. 2022-05-08T10:14:19.07 3.0 undecidable manual Sg 6.27 0
IV.VARE.HHZ. 2022-05-08T10:14:14.02 3.0 undecidable manual Sn -2.42 0
GU.CANO.HHZ. 2022-05-08T10:14:10.75 3.0 undecidable manual Sg 8.47 0
OT.OT05.EHZ. 2022-05-08T10:13:54.81 3.0 positive manual Pn 0.17 0
IV.MMO1.EHZ. 2022-05-08T10:13:53.98 3.0 undecidable manual Sg 4.69 0
GU.RRL.HHZ. 2022-05-08T10:13:52.55 3.0 negative manual Pn 2.82 0
SI.KOSI.HHZ. 2022-05-08T10:13:42.62 3.0 negative manual Pn 1.67 0
ST.ZIAN.EHZ. 2022-05-08T10:13:40.02 3.0 undecidable manual Pn 1.52 0
IV.VARE.HHZ. 2022-05-08T10:13:39.74 3.0 positive manual Pn -1.51 0
IV.FREG.EHZ. 2022-05-08T10:13:35.21 3.0 undecidable manual Pn -1.17 0
IV.MAGA.HHZ. 2022-05-08T10:13:33.04 3.0 negative manual Pn 0.93 0
ST.DOSS.HHZ. 2022-05-08T10:13:33.81 3.0 negative manual Pn 0.87 0
IV.ROVR.HHZ. 2022-05-08T10:13:30.65 3.0 undecidable manual Pn 0.87 0
IV.PIEI.HHZ. 2022-05-08T10:13:29.98 1.0 undecidable manual S 97 105.7164 50 2.28 6
GU.EQUI.HHZ. 2022-05-08T10:13:27.53 0.6 undecidable manual S 303 102.8193 50 0.6 37
IV.ZOVE.EHZ. 2022-05-08T10:13:27.71 3.0 undecidable manual Pn 0.52 0
IV.CASP.HHZ. 2022-05-08T10:13:26.02 0.6 undecidable manual S 197 100.8213 50 -0.37 40
IV.ARCI.HHZ. 2022-05-08T10:13:23.02 0.6 undecidable manual S 167 91.7415 50 -0.96 33
IV.PARC.HHZ. 2022-05-08T10:13:21.27 0.3 undecidable manual S 91 80.9523 50 0.18 65
IV.SSP9.EHZ. 2022-05-08T10:13:19.60 0.3 undecidable manual S 97 72.9714 50 0.63 58
GU.GRAM.HHZ. 2022-05-08T10:13:19.79 0.6 undecidable manual P 315 130.869 50 1.57 22
IV.FRON.EHZ. 2022-05-08T10:13:18.38 0.3 undecidable manual P 97 121.1898 50 1.64 32
IV.CAFI.HHZ. 2022-05-08T10:13:17.24 0.3 undecidable manual S 121 69.6747 50 -0.84 54
IV.ATCC.EHZ. 2022-05-08T10:13:17.76 3.0 undecidable manual P -0.3 0
IV.MAGO.CHZ. 2022-05-08T10:13:16.46 0.6 undecidable manual S 227 62.8926 50 0.17 45
GU.MAIM.HHZ. 2022-05-08T10:13:16.22 0.3 undecidable manual S 296 65.49 50 -0.75 56
IV.VISG.HHZ. 2022-05-08T10:13:15.60 0.3 undecidable manual S 15 60.8946 50 -0.15 68
IV.SACS.HHZ. 2022-05-08T10:13:15.31 0.6 undecidable manual P 148 105.3168 50 1.01 31
IV.FNVD.HHZ. 2022-05-08T10:13:15.10 0.3 undecidable manual S 351 56.9985 50 0.39 65
IV.LMD.HHZ. 2022-05-08T10:13:15.27 0.3 undecidable manual S 39 59.9955 50 -0.24 66
GU.EQUI.HHZ. 2022-05-08T10:13:14.65 0.1 undecidable manual P 303 102.8193 50 0.75 70
IV.PIEI.HHZ. 2022-05-08T10:13:14.84 0.6 undecidable manual P 97 105.7164 50 0.49 38
IV.CRE.HHZ. 2022-05-08T10:13:14.76 0.6 undecidable manual S 94 58.0974 50 -0.23 45
IV.CASP.HHZ. 2022-05-08T10:13:14.45 0.3 undecidable manual P 197 100.8213 50 0.86 50
IV.ATVO.HHZ. 2022-05-08T10:13:13.83 1.0 undecidable manual P 108 99.5226 50 0.44 20
IV.ATMI.HHZ. 2022-05-08T10:13:13.34 0.6 undecidable manual P 113 90.9423 50 1.26 28
IV.PII.HHZ. 2022-05-08T10:13:13.61 0.3 undecidable manual S 277 56.9985 50 -1.1 49
IV.ARCI.HHZ. 2022-05-08T10:13:12.50 0.3 undecidable manual P 167 91.7415 50 0.3 62
IV.FROS.CHE. 2022-05-08T10:13:12.04 0.6 undecidable manual S 187 50.2164 50 -0.87 37
IV.SEI.HHZ. 2022-05-08T10:13:11.30 0.3 undecidable manual S 13 44.9217 50 -0.19 69
IV.PARC.HHZ. 2022-05-08T10:13:10.56 0.6 positive manual P 91 80.9523 50 0.03 44
IV.SSP9.EHZ. 2022-05-08T10:13:09.91 0.1 undecidable manual P 97 72.9714 50 0.6 79
IV.MOCL.EHZ. 2022-05-08T10:13:09.35 0.3 undecidable manual S 354 38.5281 100 -0.33 68
GU.CARD.HHZ. 2022-05-08T10:13:09.64 0.1 undecidable manual P 304 72.372 50 0.43 83
IV.BDI.HHZ. 2022-05-08T10:13:08.76 0.1 undecidable manual P 312 67.6767 50 0.28 87
IV.MPPT.EHZ. 2022-05-08T10:13:08.30 0.3 undecidable manual S 341 34.9428 101 -0.15 71
IV.CAFI.HHZ. 2022-05-08T10:13:08.81 0.1 undecidable manual P 121 69.6747 50 0.02 91
GU.MAIM.HHZ. 2022-05-08T10:13:08.38 0.1 undecidable manual P 296 65.49 50 0.22 88
IV.LMD.HHZ. 2022-05-08T10:13:07.18 0.1 undecidable manual P 39 59.9955 50 -0.13 91
IV.VISG.HHZ. 2022-05-08T10:13:07.52 0.1 positive manual P 15 60.8946 50 0.07 92
IV.MAGO.CHZ. 2022-05-08T10:13:07.61 0.1 undecidable manual P 227 62.8926 50 -0.15 90
IV.PII.HHZ. 2022-05-08T10:13:06.70 0.1 undecidable manual P 277 56.9985 50 -0.14 91
IV.BOSL.HHZ. 2022-05-08T10:13:06.90 0.3 undecidable manual S 21 32.2455 102 -0.65 62
GU.POPM.HHZ. 2022-05-08T10:13:06.66 0.1 undecidable manual P 319 57.0984 50 -0.2 90
IV.FNVD.HHZ. 2022-05-08T10:13:06.72 0.1 positive manual P 351 56.9985 50 -0.13 91
IV.RUFI.EHZ. 2022-05-08T10:13:06.16 0.3 undecidable manual S 48 29.8479 103 -0.58 64
IV.CRE.HHZ. 2022-05-08T10:13:06.31 0.1 undecidable manual P 94 58.0974 50 -0.7 78
IV.FROS.CHE. 2022-05-08T10:13:05.54 0.1 undecidable manual P 187 50.2164 50 -0.27 90
IV.CRMI.HHZ. 2022-05-08T10:13:05.49 0.3 undecidable manual S 307 25.1526 105 0.34 69
IV.SEI.HHZ. 2022-05-08T10:13:04.76 0.1 negative manual P 13 44.9217 50 -0.23 91
IV.CSNT.HHZ. 2022-05-08T10:13:03.55 0.3 undecidable manual S 167 21.2676 108 -0.3 70
IV.MOCL.EHZ. 2022-05-08T10:13:03.38 0.1 negative manual P 354 38.5281 100 -0.56 85
IT.FIE.HGE. 2022-05-08T10:13:02.82 0.3 undecidable manual S 17 17.1717 112 0.3 71
IV.RUFI.EHZ. 2022-05-08T10:13:02.08 0.1 positive manual P 48 29.8479 103 -0.17 95
IV.BOSL.HHZ. 2022-05-08T10:13:02.63 0.1 negative manual P 21 32.2455 102 -0.08 96
IV.MPPT.EHZ. 2022-05-08T10:13:02.83 0.1 negative manual P 341 34.9428 101 -0.41 90
IV.OSSC.HHZ. 2022-05-08T10:13:01.95 0.3 undecidable manual S 175 15.1737 115 0.07 75
IV.FIR.HNE. 2022-05-08T10:13:01.52 0.3 undecidable manual S 9 12.876 118 0.34 71
IV.CRMI.HHZ. 2022-05-08T10:13:01.54 0.1 undecidable manual P 307 25.1526 105 0.21 95
IT.FIE.HGE. 2022-05-08T10:13:00.17 0.1 undecidable manual P 17 17.1717 112 0.36 93
IV.CSNT.HHZ. 2022-05-08T10:13:00.34 0.1 negative manual P 167 21.2676 108 -0.24 95
IV.FIR.HNE. 2022-05-08T10:12:59.36 0.3 undecidable manual P 9 12.876 118 0.32 71
IV.OSSC.HHZ. 2022-05-08T10:12:59.48 0.1 positive manual P 175 15.1737 115 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.OSSC.HHE. ML:2.7 0.0047799999999999995 1.02 AML other m 2022-05-08T10:13:02.74
IV.OSSC.HHN. ML:2.5 0.0035499999999999998 1.32 AML other m 2022-05-08T10:13:03.80
IV.CRMI.HNE. ML:2.2 0.0009185 0.28 AML other m 2022-05-08T10:13:06.09
IV.CRMI.HHN. ML:2.3 0.0012549999999999998 0.56 AML other m 2022-05-08T10:13:06.08
IV.CRMI.HNN. ML:2.3 0.00117 0.56 AML other m 2022-05-08T10:13:06.36
IV.CRMI.HHE. ML:2.0 0.0006174999999999999 0.9 AML other m 2022-05-08T10:13:06.09
IV.RUFI.EHN. ML:2.5 0.0016749999999999998 1.48 AML other m 2022-05-08T10:13:06.96
IV.RUFI.EHE. ML:2.6 0.00229 0.24 AML other m 2022-05-08T10:13:07.15
IV.BOSL.HHE. ML:2.4 0.0013434999999999999 0.22 AML other m 2022-05-08T10:13:07.55
IV.BOSL.HHN. ML:2.3 0.0008835 0.42 AML other m 2022-05-08T10:13:07.56
IV.MPPT.EHE. ML:2.2 0.00062 0.66 AML other m 2022-05-08T10:13:08.90
IV.MOCL.EHE. ML:2.5 0.001195 0.7 AML other m 2022-05-08T10:13:09.52
IV.MPPT.EHN. ML:2.0 0.000417 1.12 AML other m 2022-05-08T10:13:10.58
IV.MOCL.EHN. ML:2.5 0.0011600000000000002 0.26 AML other m 2022-05-08T10:13:10.22
IV.SEI.HHN. ML:3.0 0.0028200000000000005 0.34 AML other m 2022-05-08T10:13:12.76
IV.CRE.HHE. ML:2.2 0.000384 0.22 AML other m 2022-05-08T10:13:15.71
IV.LMD.HHE. ML:2.7 0.00113 0.6 AML other m 2022-05-08T10:13:15.45
GU.POPM.HHE. ML:2.2 0.000386 0.22 AML other m 2022-05-08T10:13:15.77
IV.VISG.HHE. ML:2.3 0.0004075 0.4 AML other m 2022-05-08T10:13:16.19
IV.VISG.HHN. ML:2.2 0.000315 0.38 AML other m 2022-05-08T10:13:16.39
IV.SEI.HHE. ML:2.5 0.001045 0.4 AML other m 2022-05-08T10:13:16.20
IV.LMD.HHN. ML:2.7 0.0010505 0.66 AML other m 2022-05-08T10:13:16.43
IV.FNVD.HHE. ML:2.2 0.00039049999999999995 0.82 AML other m 2022-05-08T10:13:17.12
IV.CAFI.HHE. ML:2.0 0.000192 1.3 AML other m 2022-05-08T10:13:17.76
IV.CAFI.HHN. ML:2.0 0.000176 0.72 AML other m 2022-05-08T10:13:17.88
GU.MAIM.HHE. ML:1.9 0.00014450000000000002 0.34 AML other m 2022-05-08T10:13:17.99
GU.POPM.HHN. ML:2.4 0.0005304999999999999 1.78 AML other m 2022-05-08T10:13:18.08
GU.MAIM.HHN. ML:2.0 0.00019350000000000001 1.08 AML other m 2022-05-08T10:13:18.90
IV.CRE.HHN. ML:2.4 0.0005685 1.62 AML other m 2022-05-08T10:13:18.93
IV.PII.HHE. ML:2.6 0.0008125 0.32 AML other m 2022-05-08T10:13:19.26
IV.PII.HHN. ML:2.6 0.0008705000000000001 0.34 AML other m 2022-05-08T10:13:19.78
IV.FNVD.HHN. ML:2.3 0.000477 0.66 AML other m 2022-05-08T10:13:20.57
IV.BDI.HHN. ML:2.3 0.000359 0.88 AML other m 2022-05-08T10:13:20.81
IV.BDI.HHE. ML:2.3 0.0003285 0.34 AML other m 2022-05-08T10:13:20.73
IV.BDI.HNN. ML:2.2 0.0003165 0.34 AML other m 2022-05-08T10:13:21.29
IV.BDI.HNE. ML:2.2 0.00027049999999999996 0.66 AML other m 2022-05-08T10:13:21.95
GU.CARD.HHN. ML:2.3 0.00032700000000000003 0.68 AML other m 2022-05-08T10:13:21.69
GU.CARD.HHE. ML:2.5 0.000482 0.22 AML other m 2022-05-08T10:13:21.69
IV.SSP9.EHN. ML:2.2 0.00027449999999999995 1.58 AML other m 2022-05-08T10:13:25.79
IV.PARC.HHE. ML:2.1 0.0001855 0.58 AML other m 2022-05-08T10:13:25.32
IV.CASP.HHN. ML:1.8 0.00007000000000000001 0.28 AML other m 2022-05-08T10:13:26.28
IV.CASP.HHE. ML:2.0 0.00011249999999999998 0.74 AML other m 2022-05-08T10:13:26.30
IV.PARC.HHN. ML:2.2 0.000242 0.9 AML other m 2022-05-08T10:13:26.14
IV.ARCI.HHE. ML:1.8 0.00006850000000000001 1.04 AML other m 2022-05-08T10:13:27.92
IV.ARCI.HHN. ML:2.0 0.00010205 1.62 AML other m 2022-05-08T10:13:27.08
IV.ATMI.HHN. ML:2.6 0.000482 1.32 AML other m 2022-05-08T10:13:27.91
GU.EQUI.HHE. ML:2.3 0.000186 0.42 AML other m 2022-05-08T10:13:29.30
IV.ATMI.HHE. ML:2.5 0.000359 0.36 AML other m 2022-05-08T10:13:29.64
GU.EQUI.HHN. ML:2.2 0.0001425 0.28 AML other m 2022-05-08T10:13:30.02
IV.PIEI.HHE. ML:2.0 0.00009525 0.22 AML other m 2022-05-08T10:13:31.38
IV.ATVO.HHN. ML:2.2 0.0001485 1.46 AML other m 2022-05-08T10:13:31.14
IV.ATVO.HHE. ML:2.3 0.0001875 0.5 AML other m 2022-05-08T10:13:31.92
IV.SSP9.EHE. ML:2.0 0.00017549999999999998 0.52 AML other m 2022-05-08T10:13:33.27
IV.PIEI.HHN. ML:1.9 0.00007165 1.26 AML other m 2022-05-08T10:13:33.20
IV.FRON.EHN. ML:2.0 0.00008195 1.2 AML other m 2022-05-08T10:13:35.25
IV.ROVR.HHN. ML:2.3 0.000052000000000000004 0.54 AML other m 2022-05-08T10:13:35.37
IV.SACS.HHN. ML:1.6 0.00003255 1.5 AML other m 2022-05-08T10:13:37.16
IV.SACS.HHE. ML:1.6 0.00003705 1.12 AML other m 2022-05-08T10:13:38.00
GU.GRAM.HHE. ML:2.4 0.000155 0.34 AML other m 2022-05-08T10:13:39.03
IV.FRON.EHE. ML:1.9 0.00005640000000000001 0.56 AML other m 2022-05-08T10:13:41.61
GU.GRAM.HHN. ML:2.2 0.000112 0.38 AML other m 2022-05-08T10:13:41.62
IV.ATCC.EHN. ML:2.1 0.00009279999999999999 0.7 AML other m 2022-05-08T10:13:43.82
IV.ATCC.EHE. ML:2.3 0.00015050000000000003 0.74 AML other m 2022-05-08T10:13:44.28
IV.MAGA.HNN. ML:2.8 0.0001225 0.42 AML other m 2022-05-08T10:14:01.26
IV.ZOVE.HNE. ML:4.0 0.00321 0.42 AML other m 2022-05-08T10:14:11.94
IV.ZOVE.HNN. ML:4.1 0.00363 0.42 AML other m 2022-05-08T10:14:11.96
IV.ROVR.HHE. ML:2.1 0.00003165 1.02 AML other m 2022-05-08T10:14:11.97
IV.MAGA.HHE. ML:2.5 0.0000702 0.72 AML other m 2022-05-08T10:14:12.58
IV.MAGA.HNE. ML:2.6 0.0000781 0.6 AML other m 2022-05-08T10:14:14.56
ST.DOSS.HHN. ML:2.3 0.0000331 1.42 AML other m 2022-05-08T10:14:14.07
IV.MAGA.HHN. ML:2.3 0.0000383 0.82 AML other m 2022-05-08T10:14:15.29
ST.DOSS.HHE. ML:2.1 0.00002685 0.98 AML other m 2022-05-08T10:14:23.86
SI.KOSI.HHN. ML:2.2 0.00001833 1.42 AML other m 2022-05-08T10:14:39.82
SI.KOSI.HHE. ML:2.4 0.0000232 0.42 AML other m 2022-05-08T10:14:39.43
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