Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 07-05-2022 and time 18:04:51 (UTC) in region 4 km E San Casciano in Val di Pesa (FI)

A magnitude ML 1.8 earthquake occured in region: 4 km E San Casciano in Val di Pesa (FI), on

  • 07-05-2022 18:04:51 (UTC)
  • 07-05-2022 20:04:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6510, 11.2340 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 Casciano in Val di Pesa FI 4 17062 17062
Impruneta FI 4 14615 31677
Greve in Chianti FI 10 13862 45539
Tavarnelle Val di Pesa FI 11 7800 53339
Montespertoli FI 13 13537 66876
Scandicci FI 13 50609 117485
Barberino Val d'Elsa FI 13 4386 121871
Bagno a Ripoli FI 13 25611 147482
Firenze FI 13 382808 530290
Lastra a Signa FI 17 20156 550446
Figline e Incisa Valdarno FI 18 23505 573951
Fiesole FI 18 13969 587920
Signa FI 18 19179 607099
Montelupo Fiorentino FI 19 14098 621197
Certaldo FI 19 16121 637318
Rignano sull'Arno FI 19 8651 645969

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)
40 Km SE of Pistoia (90315 inhabitants)
56 Km W of Arezzo (99543 inhabitants)
63 Km E of Lucca (89046 inhabitants)
67 Km E of Pisa (89158 inhabitants)
75 Km E of Livorno (159219 inhabitants)
83 Km E of Viareggio (62467 inhabitants)
87 Km SW of Imola (69797 inhabitants)
88 Km SW of Faenza (58541 inhabitants)
91 Km SW of Forlì (117913 inhabitants)
94 Km S of Bologna (386663 inhabitants)
97 Km SW of Cesena (96758 inhabitants)
98 Km E of Massa (69479 inhabitants)
99 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 1.8 2022-05-07
18:04:51		 43.6513 11.2343 8 2023-01-31
19:03:15		 Bollettino Sismico Italiano INGV 105658541
Reviewed
Rev100 		ML 1.8 2022-05-07
18:04:51		 43.6583 11.2357 7 2022-05-07
18:17:24		 Sala Sismica INGV-Roma 104318301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-07 18:04:51 ± 0.05
Latitude 43.6513 ± 0.0018
Longitude 11.2343 ± 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 105658541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 279
Semi-minor axis of confidence ellipse (meter) 141
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 79
Circular confidence region, given by single value of horizontal uncertainty (meter) 280.0
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 57
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.94878
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 34
Type of magnitude ML
Reference to an origin 104318301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-07 18:17:24

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 105658541
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-06-06 13:09:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTRJ.HHZ. 2022-05-07T18:06:37.97 3.0 undecidable manual Sg 13.93 0
AC.VLO.HHZ. 2022-05-07T18:06:36.06 3.0 negative manual Pn 3.25 0
MN.BLY.HHZ. 2022-05-07T18:06:16.30 3.0 undecidable manual Pg 17.68 0
IV.CMPR.HHZ. 2022-05-07T18:06:15.58 3.0 undecidable manual Pg 16.24 0
IV.MIDA.HHZ. 2022-05-07T18:06:14.29 3.0 undecidable manual Sn -1.42 0
IV.VARE.HHZ. 2022-05-07T18:06:12.68 3.0 undecidable manual Sn -0.01 0
IX.SCL3.EHZ.02 2022-05-07T18:06:09.62 3.0 undecidable manual Pg 12.52 0
GU.RORO.HHZ. 2022-05-07T18:06:02.21 3.0 undecidable manual Sn 1.97 0
IV.PAOL.HHZ. 2022-05-07T18:05:57.76 3.0 undecidable manual Pg 10.84 0
IV.MTMR.HNZ. 2022-05-07T18:05:55.16 3.0 undecidable manual Pn 3.99 0
IV.MAGA.HNZ. 2022-05-07T18:05:55.42 3.0 undecidable manual Sn -1.28 0
IV.PTRJ.HHZ. 2022-05-07T18:05:52.48 3.0 undecidable manual Pg 9.1 0
IV.MC2.EHZ. 2022-05-07T18:05:46.41 3.0 undecidable manual S 4.54 0
OX.VARN.HHZ. 2022-05-07T18:05:34.61 3.0 undecidable manual Pg 3.11 0
IV.PARC.HHZ. 2022-05-07T18:05:16.93 0.3 undecidable manual S 90 80.5638 50 0.35 63
IV.CAFI.HHZ. 2022-05-07T18:05:13.14 0.3 undecidable manual S 121 68.8755 50 -0.31 65
GU.MAIM.HHZ. 2022-05-07T18:05:12.42 0.3 undecidable manual S 296 66.1893 50 -0.31 65
IV.VISG.HHZ. 2022-05-07T18:05:11.79 0.3 undecidable manual S 15 61.7937 50 0.24 67
IV.LMD.HHE. 2022-05-07T18:05:11.25 0.3 undecidable manual S 38 60.495 50 0.03 70
IV.CRE.HHZ. 2022-05-07T18:05:10.37 0.3 undecidable manual S 93 57.6978 50 -0.1 69
IV.PIEI.HHZ. 2022-05-07T18:05:10.26 0.3 undecidable manual P 97 105.3168 50 0.34 60
GU.EQUI.HHZ. 2022-05-07T18:05:10.01 0.1 undecidable manual P 304 103.6185 50 0.35 80
IV.FNVD.HHZ. 2022-05-07T18:05:10.66 0.3 undecidable manual S 351 57.9975 50 0.12 69
IV.PII.HHZ. 2022-05-07T18:05:09.84 0.3 undecidable manual S 278 57.3981 50 -0.56 62
IV.FROS.CHZ. 2022-05-07T18:05:07.85 0.3 undecidable manual S 187 49.4172 50 -0.4 66
IV.SEI.HHZ. 2022-05-07T18:05:07.22 0.6 undecidable manual S 12 45.8208 50 -0.07 47
IV.PARC.HHZ. 2022-05-07T18:05:06.40 0.3 undecidable manual P 90 80.5638 50 0.28 64
IV.MOCL.EHZ. 2022-05-07T18:05:05.33 0.3 undecidable manual S 354 39.4272 50 -0.27 69
GU.MAIM.HHZ. 2022-05-07T18:05:04.21 0.3 undecidable manual P 296 66.1893 50 0.31 65
IV.MPPT.EHZ. 2022-05-07T18:05:04.48 0.3 undecidable manual S 341 35.8419 102 -0.06 73
IV.CAFI.HHZ. 2022-05-07T18:05:04.56 0.3 undecidable manual P 121 68.8755 50 0.25 66
IV.BDI.HHZ. 2022-05-07T18:05:04.62 0.3 undecidable manual P 312 68.4759 50 0.37 64
IV.BOSL.HHZ. 2022-05-07T18:05:03.10 0.3 undecidable manual S 20 32.9448 103 -0.46 67
IV.MAGO.CHE. 2022-05-07T18:05:03.11 0.3 undecidable manual P 228 62.5929 50 -0.23 67
IV.VISG.HHZ. 2022-05-07T18:05:03.46 0.3 undecidable manual P 15 61.7937 50 0.25 67
IV.LMD.HHE. 2022-05-07T18:05:03.11 0.3 undecidable manual P 38 60.495 50 0.08 69
GU.POPM.HHZ. 2022-05-07T18:05:02.88 0.3 undecidable manual P 319 57.9975 50 0.24 67
IV.CRE.HHZ. 2022-05-07T18:05:02.31 0.3 undecidable manual P 93 57.6978 50 -0.28 67
IV.PII.HHZ. 2022-05-07T18:05:02.79 0.3 undecidable manual P 278 57.3981 50 0.24 67
IV.FNVD.HHZ. 2022-05-07T18:05:02.65 0.3 undecidable manual P 351 57.9975 50 0.02 70
IV.RUFI.EHZ. 2022-05-07T18:05:02.19 0.3 undecidable manual S 47 30.2475 104 -0.45 68
IV.CRMI.HHZ. 2022-05-07T18:05:01.26 0.3 undecidable manual S 308 25.9518 106 0.06 74
IV.FROS.CHZ. 2022-05-07T18:05:01.28 0.3 undecidable manual P 187 49.4172 50 -0.03 71
IV.SEI.HHZ. 2022-05-07T18:05:00.80 0.3 undecidable manual P 12 45.8208 50 0.05 71
IV.MOCL.EHZ. 2022-05-07T18:04:59.39 0.3 undecidable manual P 354 39.4272 50 -0.39 67
IV.CSNT.HHZ. 2022-05-07T18:04:59.05 0.3 undecidable manual S 167 20.2686 110 -0.28 71
IV.BOSL.HHZ. 2022-05-07T18:04:58.58 0.1 undecidable manual P 20 32.9448 103 -0.03 98
IT.FIE.HGZ. 2022-05-07T18:04:58.69 0.3 undecidable manual S 16 17.9709 113 0.11 74
IV.MPPT.EHZ. 2022-05-07T18:04:58.91 0.3 undecidable manual P 341 35.8419 102 -0.26 70
IV.CRMI.HHZ. 2022-05-07T18:04:57.31 0.3 undecidable manual P 308 25.9518 106 0.07 74
IV.FIR.HNZ. 2022-05-07T18:04:57.27 0.3 undecidable manual S 7 13.7751 119 0 76
IV.OSSC.HHZ. 2022-05-07T18:04:57.48 0.3 undecidable manual S 176 14.1747 118 0.08 75
IV.RUFI.EHZ. 2022-05-07T18:04:57.99 0.1 undecidable manual P 47 30.2475 104 -0.08 97
IT.FIE.HGZ. 2022-05-07T18:04:56.05 0.1 undecidable manual P 16 17.9709 113 0.33 94
IV.CSNT.HHZ. 2022-05-07T18:04:56.19 0.1 undecidable manual P 167 20.2686 110 0.03 100
IV.OSSC.HHZ. 2022-05-07T18:04:55.38 0.3 undecidable manual P 176 14.1747 118 0.33 71
IV.FIR.HNZ. 2022-05-07T18:04:54.75 0.6 undecidable manual P 7 13.7751 119 -0.22 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.OSSC.HHE. ML:2.2 0.001835 0.3 AML other m 2022-05-07T18:04:58.41
IV.OSSC.HHN. ML:2.1 0.0012900000000000001 1.28 AML other m 2022-05-07T18:04:59.65
IV.CSNT.HHE. ML:2.0 0.0007465 0.9 AML other m 2022-05-07T18:05:01.35
IV.CRMI.HHN. ML:1.7 0.000317 0.48 AML other m 2022-05-07T18:05:02.37
IV.RUFI.EHE. ML:2.0 0.0005394999999999999 1.72 AML other m 2022-05-07T18:05:02.07
IV.CRMI.HHE. ML:1.4 0.000164 1.44 AML other m 2022-05-07T18:05:03.78
IV.CSNT.HHN. ML:1.9 0.000675 0.4 AML other m 2022-05-07T18:05:03.20
IV.BOSL.HHE. ML:1.9 0.0003895 0.26 AML other m 2022-05-07T18:05:03.51
IV.RUFI.EHN. ML:1.9 0.000372 0.86 AML other m 2022-05-07T18:05:03.56
IV.BOSL.HHN. ML:1.7 0.0002345 0.3 AML other m 2022-05-07T18:05:03.88
IV.MPPT.EHE. ML:1.7 0.00019250000000000002 0.66 AML other m 2022-05-07T18:05:04.93
IV.MPPT.EHN. ML:1.5 0.0001315 0.32 AML other m 2022-05-07T18:05:04.88
IV.MOCL.EHE. ML:2.2 0.0005495000000000001 0.44 AML other m 2022-05-07T18:05:06.35
IV.MOCL.EHN. ML:2.1 0.00040500000000000003 0.58 AML other m 2022-05-07T18:05:06.51
IV.SEI.HHE. ML:2.0 0.00027949999999999996 0.42 AML other m 2022-05-07T18:05:08.54
IV.SEI.HHN. ML:2.5 0.0009665 0.38 AML other m 2022-05-07T18:05:08.74
IV.PII.HHE. ML:2.0 0.00023649999999999998 0.6 AML other m 2022-05-07T18:05:11.25
IV.VISG.HHE. ML:1.7 0.0001094 1.28 AML other m 2022-05-07T18:05:12.15
IV.VISG.HHN. ML:1.6 0.00007950000000000001 0.4 AML other m 2022-05-07T18:05:12.35
IV.CRE.HHN. ML:1.8 0.0001395 0.26 AML other m 2022-05-07T18:05:12.89
IV.FNVD.HHN. ML:1.8 0.00014500000000000003 1.66 AML other m 2022-05-07T18:05:13.00
IV.CRE.HHE. ML:1.6 0.00009325 0.76 AML other m 2022-05-07T18:05:13.45
IV.FNVD.HHE. ML:1.6 0.00008955000000000001 0.62 AML other m 2022-05-07T18:05:13.45
IV.CAFI.HHE. ML:1.5 0.0000504 0.7 AML other m 2022-05-07T18:05:13.92
IV.CAFI.HHN. ML:1.4 0.000045849999999999996 0.72 AML other m 2022-05-07T18:05:13.33
GU.POPM.HHN. ML:1.8 0.0001295 0.2 AML other m 2022-05-07T18:05:14.10
IV.PII.HHN. ML:2.0 0.000219 0.34 AML other m 2022-05-07T18:05:14.51
GU.POPM.HHE. ML:1.7 0.00010240000000000001 0.24 AML other m 2022-05-07T18:05:14.66
IV.BDI.HHN. ML:1.7 0.000082 0.86 AML other m 2022-05-07T18:05:16.83
IV.BDI.HHE. ML:1.6 0.00007595 0.48 AML other m 2022-05-07T18:05:18.12
IV.PARC.HHN. ML:1.7 0.00006475 0.36 AML other m 2022-05-07T18:05:20.35
IV.PARC.HHE. ML:1.6 0.0000592 0.74 AML other m 2022-05-07T18:05:20.51
IV.PIEI.HHE. ML:1.4 0.000023 0.2 AML other m 2022-05-07T18:05:27.22
IV.PIEI.HHN. ML:1.4 0.00002387 0.7 AML other m 2022-05-07T18:05:29.00
IV.VARE.HHE. ML:2.3 0.000020799999999999997 1.52 AML other m 2022-05-07T18:05:56.14
IV.VARE.HHN. ML:2.4 0.000027799999999999998 0.76 AML other m 2022-05-07T18:06:32.62
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