Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 08-05-2022 and time 00:56:41 (UTC) in region 4 km S Impruneta (FI)

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

  • 08-05-2022 00:56:41 (UTC)
  • 08-05-2022 02:56:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6560, 11.2440 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
Impruneta FI 4 14615 14615
San Casciano in Val di Pesa FI 5 17062 31677
Greve in Chianti FI 10 13862 45539
Tavarnelle Val di Pesa FI 12 7800 53339
Bagno a Ripoli FI 12 25611 78950
Scandicci FI 13 50609 129559
Firenze FI 13 382808 512367
Montespertoli FI 14 13537 525904
Barberino Val d'Elsa FI 14 4386 530290
Figline e Incisa Valdarno FI 17 23505 553795
Lastra a Signa FI 17 20156 573951
Fiesole FI 17 13969 587920
Signa FI 18 19179 607099
Rignano sull'Arno FI 19 8651 615750
Montelupo Fiorentino FI 20 14098 629848
Sesto Fiorentino FI 20 48958 678806

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km SE of Scandicci (50609 inhabitants)
13 Km S of Firenze (382808 inhabitants)
28 Km SE of Prato (191150 inhabitants)
38 Km N of Siena (53903 inhabitants)
41 Km SE of Pistoia (90315 inhabitants)
56 Km W of Arezzo (99543 inhabitants)
63 Km E of Lucca (89046 inhabitants)
68 Km E of Pisa (89158 inhabitants)
76 Km E of Livorno (159219 inhabitants)
83 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)
94 Km S of Bologna (386663 inhabitants)
96 Km SW of Cesena (96758 inhabitants)
98 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 2.3 2022-05-08
00:56:41		 43.6557 11.2438 7 2023-01-31
19:03:21		 Bollettino Sismico Italiano INGV 107117441
Reviewed
Rev100 		ML 2.3 2022-05-08
00:56:41		 43.6553 11.2408 8 2022-05-08
01:06:24		 Sala Sismica INGV-Roma 104326441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-08 00:56:41 ± 0.08
Latitude 43.6557 ± 0.0036
Longitude 11.2438 ± 0.0075
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 107117441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 574
Semi-minor axis of confidence ellipse (meter) 161
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 86
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
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 58
Number of defining phases 47
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.93619
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 64
Type of magnitude ML
Reference to an origin 107117441
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-07-11 09:00:53

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 64
Type of magnitude ML
Reference to an origin 104326441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-08 01:06:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTRJ.HHZ. 2022-05-08T00:58:13.11 3.0 undecidable manual Sn -2.07 0
IV.PAOL.HHZ. 2022-05-08T00:57:36.53 3.0 undecidable manual Pn -1.38 0
IV.FDMO.HHZ. 2022-05-08T00:57:33.71 3.0 undecidable manual S 3.88 0
SI.KOSI.HHZ. 2022-05-08T00:57:28.50 3.0 negative manual Pn 1.88 0
ST.ZIAN.EHZ. 2022-05-08T00:57:26.01 3.0 negative manual Pn 1.82 0
ST.VARA.EHZ. 2022-05-08T00:57:19.34 3.0 positive manual Pn 1.33 0
ST.DOSS.HHZ. 2022-05-08T00:57:19.62 3.0 negative manual Pn 1.02 0
IV.ROVR.HHZ. 2022-05-08T00:57:16.66 3.0 positive manual Pn 1.24 0
GU.EQUI.HHZ. 2022-05-08T00:57:13.63 0.6 undecidable manual S 303 103.9182 50 0.7 36
IV.CASP.HHZ. 2022-05-08T00:57:11.77 0.6 undecidable manual S 198 100.7214 50 -0.29 41
IV.ARVD.HHZ. 2022-05-08T00:57:06.06 3.0 undecidable manual P 0.45 0
IV.BDI.HHZ. 2022-05-08T00:57:04.68 0.3 undecidable manual S 311 68.7756 50 1.14 48
IV.CAFI.HHZ. 2022-05-08T00:57:03.15 0.3 undecidable manual S 122 68.4759 50 -0.31 66
IV.LMD.HHZ. 2022-05-08T00:57:01.34 0.6 undecidable manual S 38 59.6958 50 0.23 45
IV.VISG.HHZ. 2022-05-08T00:57:01.55 0.6 undecidable manual S 14 61.0944 50 0.06 47
GU.EQUI.HHZ. 2022-05-08T00:57:00.77 0.6 undecidable manual P 303 103.9182 50 0.97 32
IV.CRE.HHZ. 2022-05-08T00:57:00.00 0.6 undecidable manual S 94 56.9985 50 -0.38 44
IV.FNVD.HHZ. 2022-05-08T00:57:00.49 0.3 undecidable manual S 350 57.5979 50 -0.08 70
IV.CASP.HHZ. 2022-05-08T00:57:00.24 0.6 undecidable manual P 198 100.7214 50 0.94 33
IV.PII.HHZ. 2022-05-08T00:56:59.46 0.6 undecidable manual S 278 58.0974 50 -1.24 31
IV.ATMI.HHZ. 2022-05-08T00:56:58.52 0.6 undecidable manual P 113 89.7435 50 0.9 34
IV.SEI.HHZ. 2022-05-08T00:56:57.16 0.3 undecidable manual S 12 45.2214 50 -0.08 72
IV.FROS.CHZ. 2022-05-08T00:56:57.78 0.3 undecidable manual S 188 49.9167 50 -0.73 59
IV.ZCCA.HHZ. 2022-05-08T00:56:57.68 0.3 undecidable manual P 345 80.0643 50 1.57 37
IV.RIBO.EHZ. 2022-05-08T00:56:57.33 0.3 undecidable manual P 192 79.9644 50 1.23 45
IV.PARC.HHZ. 2022-05-08T00:56:56.41 0.3 undecidable manual P 90 79.8645 50 0.33 64
IV.SSP9.EHZ. 2022-05-08T00:56:55.63 1.0 undecidable manual P 97 71.8725 50 0.78 19
GU.CARD.HHZ. 2022-05-08T00:56:55.55 3.0 undecidable manual P 0.53 0
IV.MOCL.EHZ. 2022-05-08T00:56:55.20 0.1 undecidable manual S 353 39.0276 50 -0.41 90
IV.CAFI.HHZ. 2022-05-08T00:56:54.49 0.3 undecidable manual P 122 68.4759 50 0.16 68
IV.BDI.HHZ. 2022-05-08T00:56:54.62 0.3 undecidable manual P 311 68.7756 50 0.24 67
GU.MAIM.HHZ. 2022-05-08T00:56:54.30 0.3 undecidable manual P 296 66.6777 50 0.25 67
IV.VISG.HHZ. 2022-05-08T00:56:53.37 0.1 positive manual P 14 61.0944 50 0.18 91
IV.MPPT.EHZ. 2022-05-08T00:56:53.97 0.3 undecidable manual S 340 35.6421 101 -0.52 66
IV.MAGO.CHN. 2022-05-08T00:56:53.29 0.3 undecidable manual P 228 63.492 50 -0.26 67
IV.CRE.HHZ. 2022-05-08T00:56:52.19 0.3 undecidable manual P 94 56.9985 50 -0.37 66
IV.RUFI.EHZ. 2022-05-08T00:56:52.02 0.6 undecidable manual S 46 29.3484 104 -0.33 47
IV.FNVD.HHZ. 2022-05-08T00:56:52.61 0.3 undecidable manual P 350 57.5979 50 -0.05 71
GU.POPM.HHZ. 2022-05-08T00:56:52.38 3.0 undecidable manual P -0.28 0
IV.BOSL.HHZ. 2022-05-08T00:56:52.93 0.3 undecidable manual S 19 32.2455 103 -0.41 69
IV.LMD.HHZ. 2022-05-08T00:56:52.85 0.3 undecidable manual P 38 59.6958 50 -0.13 69
IV.PII.HHZ. 2022-05-08T00:56:52.43 0.1 positive manual P 278 58.0974 50 -0.31 89
IV.FROS.CHZ. 2022-05-08T00:56:51.31 0.1 undecidable manual P 188 49.9167 50 -0.17 93
IV.SEI.HHZ. 2022-05-08T00:56:50.64 0.1 undecidable manual P 12 45.2214 50 -0.1 96
IV.CRMI.HHZ. 2022-05-08T00:56:50.94 0.6 undecidable manual S 306 26.2515 105 -0.38 47
IV.MOCL.EHZ. 2022-05-08T00:56:49.24 0.1 negative manual P 353 39.0276 50 -0.56 87
IV.CSNT.HHZ. 2022-05-08T00:56:49.44 0.3 undecidable manual S 170 20.5683 109 0.01 76
IV.MPPT.EHZ. 2022-05-08T00:56:48.81 0.1 undecidable manual P 340 35.6421 101 -0.34 92
IT.FIE.HGZ. 2022-05-08T00:56:48.72 0.6 undecidable manual S 14 17.2716 113 0.36 48
IV.BOSL.HHZ. 2022-05-08T00:56:48.47 0.1 undecidable manual P 19 32.2455 103 -0.02 99
IV.OSSC.HHZ. 2022-05-08T00:56:47.41 0.6 undecidable manual S 179 14.6742 116 -0.11 50
IV.CRMI.HHZ. 2022-05-08T00:56:47.18 0.1 undecidable manual P 306 26.2515 105 -0.14 98
IV.RUFI.EHZ. 2022-05-08T00:56:47.93 0.1 positive manual P 46 29.3484 104 0.01 100
IV.FIR.HHZ. 2022-05-08T00:56:47.38 0.6 undecidable manual S 4 13.1757 119 0.3 48
IV.CSNT.HHZ. 2022-05-08T00:56:46.09 0.1 negative manual P 170 20.5683 109 -0.14 99
IT.FIE.HGZ. 2022-05-08T00:56:46.02 0.3 undecidable manual P 14 17.2716 113 0.4 71
IV.FIR.HHZ. 2022-05-08T00:56:45.25 0.3 undecidable manual P 4 13.1757 119 0.38 72
IV.OSSC.HHZ. 2022-05-08T00:56:45.27 0.1 positive manual P 179 14.6742 116 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIR.HNE. ML:2.7 0.006603523 1.78 AML other m 2022-05-08T00:56:48.93
IV.FIR.HHE. ML:2.7 0.0062922510000000004 1.78 AML other m 2022-05-08T00:56:48.93
IV.FIR.HNN. ML:2.9 0.009218965499999999 0.38 AML other m 2022-05-08T00:56:48.12
IV.FIR.HHN. ML:2.9 0.009145621500000001 0.38 AML other m 2022-05-08T00:56:48.12
IV.OSSC.HHE. ML:2.5 0.00344 0.24 AML other m 2022-05-08T00:56:48.24
IV.OSSC.HHN. ML:2.2 0.00187191675 0.26 AML other m 2022-05-08T00:56:48.62
IT.FIE.HGE. ML:4.0 0.08366301 0.1896 AML other m 2022-05-08T00:56:48.90
IT.FIE.HGN. ML:4.0 0.094398865 0.12 AML other m 2022-05-08T00:56:48.97
IV.CRMI.HHN. ML:2.3 0.0011178997 1.6 AML other m 2022-05-08T00:56:52.96
IV.CRMI.HNN. ML:2.3 0.00109889 1.6 AML other m 2022-05-08T00:56:52.16
IV.RUFI.EHN. ML:2.4 0.0011702105 0.26 AML other m 2022-05-08T00:56:52.81
IV.RUFI.EHE. ML:2.6 0.00198 0.26 AML other m 2022-05-08T00:56:52.99
IV.BOSL.HHE. ML:2.4 0.0011539999999999999 0.3 AML other m 2022-05-08T00:56:53.41
IV.BOSL.HHN. ML:2.2 0.0007629999999999999 0.32 AML other m 2022-05-08T00:56:53.78
IV.MPPT.EHE. ML:2.2 0.0007055 0.68 AML other m 2022-05-08T00:56:54.79
IV.MPPT.EHN. ML:2.0 0.0004165 0.32 AML other m 2022-05-08T00:56:54.74
IV.CRMI.HHE. ML:1.9 0.0005086245499999999 1.7 AML other m 2022-05-08T00:56:54.02
IV.CRMI.HNE. ML:2.1 0.0007594829000000001 1.7096 AML other m 2022-05-08T00:56:54.02
IV.MOCL.EHE. ML:2.5 0.00111819555 0.34 AML other m 2022-05-08T00:56:55.38
IV.MOCL.EHN. ML:2.4 0.0010345225 0.36 AML other m 2022-05-08T00:56:55.65
IV.FROS.CHE. ML:2.7 0.0013565 1.76 AML other m 2022-05-08T00:56:57.08
IV.SEI.HHN. ML:3.0 0.003085 0.38 AML other m 2022-05-08T00:56:58.63
IV.FROS.CHN. ML:2.6 0.0010553471000000001 0.504 AML other m 2022-05-08T00:56:58.63
IV.PII.HHE. ML:2.5 0.00067804445 0.26 AML other m 2022-05-08T00:57:00.22
IV.LMD.HHE. ML:2.6 0.0007642937999999999 0.52 AML other m 2022-05-08T00:57:01.58
IV.VISG.HHE. ML:2.3 0.00040249999999999997 0.4 AML other m 2022-05-08T00:57:02.05
IV.VISG.HHN. ML:2.2 0.0003115 0.4 AML other m 2022-05-08T00:57:02.25
IV.SEI.HHE. ML:2.5 0.001044 0.4 AML other m 2022-05-08T00:57:02.07
IV.FNVD.HHE. ML:2.2 0.00033649849999999997 1.58 AML other m 2022-05-08T00:57:02.00
IV.LMD.HHN. ML:2.5 0.0006229094 1.62 AML other m 2022-05-08T00:57:03.01
IV.CAFI.HHE. ML:2.0 0.0001561863 0.36 AML other m 2022-05-08T00:57:03.54
GU.MAIM.HHE. ML:1.8 0.00011549999999999999 0.34 AML other m 2022-05-08T00:57:03.69
GU.POPM.HHN. ML:2.4 0.0005164999999999999 0.2 AML other m 2022-05-08T00:57:03.96
IV.CRE.HHE. ML:2.0 0.00024806329999999997 0.34 AML other m 2022-05-08T00:57:04.46
GU.POPM.HHE. ML:2.2 0.00034709225 0.26 AML other m 2022-05-08T00:57:04.53
IV.CRE.HHN. ML:2.3 0.00046350000000000004 0.34 AML other m 2022-05-08T00:57:04.75
IV.BDI.HNE. ML:2.1 0.0002064264 0.4104 AML other m 2022-05-08T00:57:05.62
IV.PII.HHN. ML:2.5 0.0007355 0.42 AML other m 2022-05-08T00:57:05.64
IV.CAFI.HHN. ML:1.9 0.0001485 1.26 AML other m 2022-05-08T00:57:05.76
IV.CAFI.HNN. ML:2.1 0.00022679185000000002 1.26 AML other m 2022-05-08T00:57:05.77
IV.FNVD.HHN. ML:2.4 0.00048444875 0.72 AML other m 2022-05-08T00:57:06.10
IV.BDI.HHE. ML:2.2 0.00026108385 0.3 AML other m 2022-05-08T00:57:06.62
GU.CARD.HHN. ML:2.1 0.00019667570000000002 0.38 AML other m 2022-05-08T00:57:06.77
IV.BDI.HHN. ML:2.2 0.00028700000000000004 0.32 AML other m 2022-05-08T00:57:07.19
IV.BDI.HNN. ML:2.3 0.00031239595 1.5992 AML other m 2022-05-08T00:57:07.19
GU.CARD.HHE. ML:2.4 0.000398 0.24 AML other m 2022-05-08T00:57:07.46
IV.SSP9.EHE. ML:2.0 0.0001563019 0.6 AML other m 2022-05-08T00:57:07.94
GU.MAIM.HHN. ML:2.0 0.000179 0.46 AML other m 2022-05-08T00:57:08.79
IV.SSP9.EHN. ML:2.2 0.000256542 0.5 AML other m 2022-05-08T00:57:08.94
IV.CASP.HNE. ML:2.2 0.0001418042 0.7392 AML other m 2022-05-08T00:57:08.98
IV.CASP.HNN. ML:2.1 0.00013596435 0.6504 AML other m 2022-05-08T00:57:10.23
IV.PARC.HHN. ML:2.2 0.00023649999999999998 1.24 AML other m 2022-05-08T00:57:10.33
IV.PARC.HHE. ML:2.0 0.0001565 1.5 AML other m 2022-05-08T00:57:11.83
IV.CAFI.HNE. ML:2.0 0.00018655050000000002 0.6 AML other m 2022-05-08T00:57:11.19
IV.CASP.HHN. ML:1.8 0.0000589 1.7 AML other m 2022-05-08T00:57:11.10
IV.CASP.HHE. ML:1.9 0.00007489999999999999 0.74 AML other m 2022-05-08T00:57:12.12
IV.ATMI.HHN. ML:2.5 0.00041000000000000005 1.34 AML other m 2022-05-08T00:57:13.71
GU.EQUI.HHE. ML:2.2 0.000165 0.44 AML other m 2022-05-08T00:57:15.39
IV.ATMI.HHE. ML:2.4 0.000325 0.32 AML other m 2022-05-08T00:57:15.45
GU.EQUI.HHN. ML:2.2 0.000136 1.68 AML other m 2022-05-08T00:57:16.05
IV.ROVR.HHE. ML:1.9 0.00002167837 1.32 AML other m 2022-05-08T00:57:21.69
IV.ROVR.HHN. ML:2.2 0.000042017584999999995 0.4 AML other m 2022-05-08T00:57:24.76
IV.ARVD.HHE. ML:1.8 0.00003985 0.66 AML other m 2022-05-08T00:57:34.57
IV.ARVD.HHN. ML:1.8 0.000037035705 0.56 AML other m 2022-05-08T00:57:37.62
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
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