Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 25-03-2017 and time 21:09:04 (Italy) in region 2 km E Castelfiorentino (FI)

A magnitude ML 2.0 earthquake occured in region: 2 km E Castelfiorentino (FI), on

  • 25-03-2017 20:09:04 (UTC)
  • 25-03-2017 21:09:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6120, 10.9970 at 10 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
Castelfiorentino FI 2 17504 17504
Montespertoli FI 7 13537 31041
Certaldo FI 8 16121 47162
Gambassi Terme FI 9 4870 52032
Montaione FI 9 3700 55732
Empoli FI 13 48109 103841
Montelupo Fiorentino FI 13 14098 117939
San Miniato PI 14 27934 145873
Capraia e Limite FI 15 7670 153543
Tavarnelle Val di Pesa FI 15 7800 161343
San Casciano in Val di Pesa FI 16 17062 178405
Barberino Val d'Elsa FI 16 4386 182791
San Gimignano SI 16 7820 190611
Palaia PI 18 4612 195223
Cerreto Guidi FI 19 10870 206093
Lastra a Signa FI 20 20156 226249
Fucecchio FI 20 23618 249867

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km SW of Scandicci (50609 inhabitants)
27 Km SW of Firenze (382808 inhabitants)
31 Km S of Prato (191150 inhabitants)
37 Km S of Pistoia (90315 inhabitants)
42 Km NW of Siena (53903 inhabitants)
48 Km SE of Lucca (89046 inhabitants)
49 Km E of Pisa (89158 inhabitants)
56 Km E of Livorno (159219 inhabitants)
66 Km E of Viareggio (62467 inhabitants)
73 Km W of Arezzo (99543 inhabitants)
83 Km SE of Massa (69479 inhabitants)
89 Km SE of Carrara (63133 inhabitants)
95 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 2.0 2017-03-25
20:09:04		 43.6115 10.9968 10 2018-01-10
09:55:01		 Bollettino Sismico Italiano INGV 43044981
Reviewed
Rev100 		ML 2.1 2017-03-25
20:09:04		 43.6073 11.0018 11 2017-03-25
20:23:28		 Sala Sismica INGV-Roma 42938091
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-03-25 20:09:04 ± 0.12
Latitude 43.6115 ± 0.0036
Longitude 10.9968 ± 0.0062
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 43044981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 505
Semi-minor axis of confidence ellipse (meter) 113
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 236
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 65
Number of defining phases 59
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) 1.11606
Number of stations at which the event was observed 44
Number of stations from which data was used for origin computation 38
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 60
Type of magnitude ML
Reference to an origin 43044981
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-10-08 17:58:45

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 42938091
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-03-25 20:23:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ROM9.HNZ. 2017-03-25T20:10:04.06 3.0 undecidable manual Sn -2.18 0
IV.COLB.HHZ. 2017-03-25T20:10:04.20 3.0 undecidable manual Pn 4.13 0
IV.VIVA.HHZ. 2017-03-25T20:09:48.53 3.0 undecidable manual Pg 7.24 0
OX.VARN.HHZ. 2017-03-25T20:09:47.18 3.0 negative manual Pn 2.53 0
IV.PP3.EHZ. 2017-03-25T20:09:43.68 3.0 negative manual Pg 7.28 0
IV.FDMO.HHZ. 2017-03-25T20:09:35.07 3.0 negative manual Pn 2.6 0
TV.SF01.EHZ. 2017-03-25T20:09:33.20 0.6 undecidable manual S 152 99.8223 50 -0.4 41
IV.CAFI.HHZ. 2017-03-25T20:09:29.10 0.3 undecidable manual S 112 84.0492 50 -0.31 65
IV.LMD.HHZ. 2017-03-25T20:09:28.10 0.3 undecidable manual S 47 76.8675 50 0.63 60
GU.SARM.EHZ. 2017-03-25T20:09:27.40 0.3 undecidable manual S 323 79.365 50 -0.75 57
IV.CRE.HHZ. 2017-03-25T20:09:27.30 0.3 undecidable manual S 89 76.6677 50 -0.14 69
IV.PIEI.HHZ. 2017-03-25T20:09:25.51 0.1 positive manual P 93 123.8871 50 0.58 75
IV.ASQU.HHZ. 2017-03-25T20:09:24.00 0.3 undecidable manual S 72 66.7776 50 -0.79 58
GU.CARD.HHZ. 2017-03-25T20:09:23.60 0.3 undecidable manual S 318 61.6938 50 0.16 70
IV.ATPI.EHZ. 2017-03-25T20:09:23.90 0.1 undecidable manual P 98 114.3966 50 0.43 80
IV.SEI.HHZ. 2017-03-25T20:09:22.30 0.3 undecidable manual S 30 56.9985 50 0.12 71
IV.MCIV.HHZ. 2017-03-25T20:09:22.89 0.1 positive manual P 149 107.5146 50 0.49 80
IV.ATMI.HHZ. 2017-03-25T20:09:22.93 0.3 undecidable manual P 106 106.8153 50 0.63 57
TV.SF01.EHZ. 2017-03-25T20:09:21.60 0.1 undecidable manual P 152 99.8223 50 0.38 83
IV.PARC.HHZ. 2017-03-25T20:09:21.77 0.1 negative manual P 87 99.8223 50 0.56 79
IV.TRIF.HHZ. 2017-03-25T20:09:21.00 0.3 undecidable manual S 188 55.5999 50 -0.81 58
TV.SF04.EHZ. 2017-03-25T20:09:21.93 0.1 positive manual P 148 101.4207 50 0.47 81
IV.BADI.EHZ. 2017-03-25T20:09:21.93 0.1 negative manual P 96 100.9212 50 0.54 79
IV.ATMC.EHZ. 2017-03-25T20:09:21.38 0.1 negative manual P 100 97.9242 50 0.46 82
IV.BRIS.HHZ. 2017-03-25T20:09:20.28 1.0 undecidable manual P 42 91.7415 50 0.31 21
GU.POPM.HHZ. 2017-03-25T20:09:20.60 0.1 undecidable manual S 338 51.8037 50 -0.18 95
GU.GSCL.HHZ. 2017-03-25T20:09:20.24 0.3 undecidable manual P 338 88.245 50 0.81 55
IV.SSP9.EHZ. 2017-03-25T20:09:20.69 0.1 positive manual P 92 91.242 50 0.79 73
IV.ARCI.HHZ. 2017-03-25T20:09:20.35 0.1 undecidable manual P 155 92.7405 50 0.23 87
GU.MAIM.HHZ. 2017-03-25T20:09:20.20 0.3 undecidable manual S 310 52.6029 50 -0.8 59
GU.EQUI.HHZ. 2017-03-25T20:09:20.28 0.1 negative manual P 313 91.3419 50 0.38 84
IV.CASP.HHZ. 2017-03-25T20:09:20.64 0.3 undecidable manual P 187 91.6416 50 0.68 57
IV.MTCR.EHZ. 2017-03-25T20:09:19.20 0.1 undecidable manual S 1 46.2204 50 -0.09 98
IV.MAGO.HHZ. 2017-03-25T20:09:19.40 0.1 undecidable manual S 216 46.4202 50 0.05 98
IV.MOCL.EHZ. 2017-03-25T20:09:19.50 0.1 undecidable manual S 19 46.0206 50 0.25 95
IV.RUFI.EHZ. 2017-03-25T20:09:19.00 0.1 undecidable manual S 58 48.2184 50 -0.82 78
MN.VLC.HHZ. 2017-03-25T20:09:18.17 0.1 negative manual P 321 77.9664 50 0.32 88
IV.FROS.HHZ. 2017-03-25T20:09:18.50 0.3 undecidable manual S 164 46.4202 50 -0.84 58
IV.CAFI.HHZ. 2017-03-25T20:09:18.94 0.1 negative manual P 112 84.0492 50 0.14 90
GU.SARM.EHZ. 2017-03-25T20:09:18.32 0.1 positive manual P 323 79.365 50 0.25 89
IV.CRE.HHZ. 2017-03-25T20:09:17.80 0.1 undecidable manual P 89 76.6677 50 0.14 91
IV.LMD.HHZ. 2017-03-25T20:09:17.87 0.1 negative manual P 47 76.8675 50 0.19 90
IV.PII.HHZ. 2017-03-25T20:09:16.80 0.1 undecidable manual S 288 39.8268 50 -0.79 81
IV.ASQU.HHZ. 2017-03-25T20:09:16.18 0.1 positive manual P 72 66.7776 50 0.05 95
IV.MPPT.EHZ. 2017-03-25T20:09:16.90 0.3 undecidable manual S 11 39.1275 50 -0.5 68
IV.FNVD.HHZ. 2017-03-25T20:09:15.86 0.3 undecidable manual P 9 62.493 50 0.39 67
GU.CARD.HHZ. 2017-03-25T20:09:15.47 0.1 negative manual P 318 61.6938 50 0.12 94
IV.BDI.HHZ. 2017-03-25T20:09:15.27 0.1 positive manual P 327 59.496 50 0.27 92
IV.TRIF.HHZ. 2017-03-25T20:09:14.34 0.3 undecidable manual P 188 55.5999 50 -0.06 72
IV.SEI.HHZ. 2017-03-25T20:09:14.57 0.1 positive manual P 30 56.9985 50 -0.05 96
GU.POPM.HHZ. 2017-03-25T20:09:14.05 0.1 negative manual P 338 51.8037 50 0.23 94
GU.MAIM.HHZ. 2017-03-25T20:09:14.02 0.1 negative manual P 310 52.6029 50 0.08 97
IV.MAGO.HHZ. 2017-03-25T20:09:13.06 0.1 positive manual P 216 46.4202 50 0.08 98
IV.CSNT.HHZ. 2017-03-25T20:09:13.90 0.3 undecidable manual S 123 28.1496 50 -0.57 67
IV.RUFI.EHZ. 2017-03-25T20:09:13.02 0.1 positive manual P 58 48.2184 50 -0.24 94
IV.MOCL.EHZ. 2017-03-25T20:09:12.63 0.1 negative manual P 19 46.0206 50 -0.3 93
IV.FROS.HHZ. 2017-03-25T20:09:12.77 0.1 negative manual P 164 46.4202 50 -0.21 95
IV.OSSC.HHZ. 2017-03-25T20:09:12.00 0.1 undecidable manual S 116 22.2555 115 -0.79 83
IV.MTCR.EHZ. 2017-03-25T20:09:12.96 0.1 positive manual P 1 46.2204 50 0 99
IV.PII.HHZ. 2017-03-25T20:09:12.01 0.1 negative manual P 288 39.8268 50 0.04 100
IV.MPPT.EHZ. 2017-03-25T20:09:11.54 0.1 positive manual P 11 39.1275 50 -0.32 94
IV.CRMI.HHZ. 2017-03-25T20:09:11.80 0.3 undecidable manual S 356 20.4684 116 -0.43 71
IV.CSNT.HHZ. 2017-03-25T20:09:09.51 0.1 negative manual P 123 28.1496 50 -0.66 87
IV.OSSC.HHZ. 2017-03-25T20:09:08.77 0.1 negative manual P 116 22.2555 115 -0.43 95
IV.CRMI.HHZ. 2017-03-25T20:09:08.68 0.1 positive manual P 356 20.4684 116 -0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRMI.HHE. ML:0.0 0.001615 1.44 AML other m 2017-03-25T20:09:12.16
IV.CRMI.HNE. ML:0.0 0.0015400000000000001 1.44 AML other m 2017-03-25T20:09:12.16
IV.CRMI.HNN. ML:0.0 0.001125 0.18 AML other m 2017-03-25T20:09:12.31
IV.CRMI.HHN. ML:0.0 0.00121 0.18 AML other m 2017-03-25T20:09:12.31
IV.OSSC.HHN. ML:0.0 0.00118 1.16 AML other m 2017-03-25T20:09:12.01
IV.OSSC.HNE. ML:0.0 0.00118 1.18 AML other m 2017-03-25T20:09:12.00
IV.OSSC.HNN. ML:0.0 0.00147 1.54 AML other m 2017-03-25T20:09:12.86
IV.OSSC.HHE. ML:0.0 0.0015 1.54 AML other m 2017-03-25T20:09:13.86
GU.MAIM.HHE. ML:0.0 0.000078860175 1.3184 AML other m 2017-03-25T20:09:20.46
IV.CSNT.HHN. ML:0.0 0.0005974999999999999 0.5 AML other m 2017-03-25T20:09:15.30
IV.CSNT.HHE. ML:0.0 0.0006925 0.26 AML other m 2017-03-25T20:09:15.57
IV.PII.HHE. ML:0.0 0.0006659999999999999 0.24 AML other m 2017-03-25T20:09:18.17
IV.MPPT.EHE. ML:0.0 0.00037 0.44 AML other m 2017-03-25T20:09:18.14
IV.PII.HHN. ML:0.0 0.0008905 0.34 AML other m 2017-03-25T20:09:18.08
IV.MPPT.EHN. ML:0.0 0.000388 1.5 AML other m 2017-03-25T20:09:18.04
IV.FROS.HHE. ML:0.0 0.001115 1.32 AML other m 2017-03-25T20:09:19.01
IV.FROS.HHN. ML:0.0 0.0008819999999999999 0.66 AML other m 2017-03-25T20:09:19.01
IV.MAGO.HHE. ML:0.0 0.000312 0.16 AML other m 2017-03-25T20:09:19.88
IV.RUFI.EHE. ML:0.0 0.00028000000000000003 1.66 AML other m 2017-03-25T20:09:20.11
IV.RUFI.EHN. ML:0.0 0.0002065 0.62 AML other m 2017-03-25T20:09:20.10
IV.MOCL.EHN. ML:0.0 0.0003755 0.78 AML other m 2017-03-25T20:09:20.44
IV.MOCL.EHE. ML:0.0 0.0003455 1.08 AML other m 2017-03-25T20:09:20.80
IV.MTCR.EHE. ML:0.0 0.000359 0.2 AML other m 2017-03-25T20:09:20.87
IV.MAGO.HHN. ML:0.0 0.0003165 1.18 AML other m 2017-03-25T20:09:21.21
GU.POPM.HHE. ML:0.0 0.000308 0.54 AML other m 2017-03-25T20:09:21.25
GU.MAIM.HHN. ML:0.0 0.0001205 0.62 AML other m 2017-03-25T20:09:21.87
GU.POPM.HHN. ML:0.0 0.00032799999999999995 0.78 AML other m 2017-03-25T20:09:22.59
IV.MTCR.EHN. ML:0.0 0.000294 1.26 AML other m 2017-03-25T20:09:22.94
IV.SEI.HHE. ML:0.0 0.0003795 1.76 AML other m 2017-03-25T20:09:24.88
GU.CARD.HHN. ML:0.0 0.000201 0.28 AML other m 2017-03-25T20:09:25.33
IV.ATMI.HHE. ML:2.0 0.00010220000000000002 0.76 AML other m 2017-03-25T20:09:25.28
IV.ASQU.HHE. ML:0.0 0.0001495 0.44 AML other m 2017-03-25T20:09:25.58
GU.CARD.HHE. ML:0.0 0.00026349999999999995 1.8 AML other m 2017-03-25T20:09:26.99
IV.SEI.HHN. ML:0.0 0.000769 0.36 AML other m 2017-03-25T20:09:26.32
IV.ASQU.HHN. ML:0.0 0.000157 0.22 AML other m 2017-03-25T20:09:26.55
IV.BDI.HHE. ML:0.0 0.00008774999999999999 0.96 AML other m 2017-03-25T20:09:26.17
IV.BDI.HNE. ML:0.0 0.0001985 0.98 AML other m 2017-03-25T20:09:26.17
IV.PIEI.HHE. ML:1.6 0.00002295 0.42 AML other m 2017-03-25T20:09:27.35
IV.BDI.HHN. ML:1.5 0.0000677 1.16 AML other m 2017-03-25T20:09:28.89
IV.LMD.HHN. ML:0.0 0.00009609999999999999 0.28 AML other m 2017-03-25T20:09:29.45
IV.BDI.HNN. ML:2.0 0.000234 1.08 AML other m 2017-03-25T20:09:30.08
IV.CRE.HHE. ML:0.0 0.0001208 0.4 AML other m 2017-03-25T20:09:31.21
IV.CAFI.HHN. ML:0.0 0.000047149999999999994 0.4 AML other m 2017-03-25T20:09:31.44
IV.CAFI.HHE. ML:0.0 0.0000459 0.3 AML other m 2017-03-25T20:09:31.70
GU.SARM.EHE. ML:0.0 0.0002245 1.14 AML other m 2017-03-25T20:09:31.74
IV.CRE.HHN. ML:0.0 0.000167 0.28 AML other m 2017-03-25T20:09:31.77
GU.SARM.EHN. ML:0.0 0.0003415 1.46 AML other m 2017-03-25T20:09:32.90
IV.LMD.HHE. ML:0.0 0.0000872 0.52 AML other m 2017-03-25T20:09:32.97
GU.EQUI.HHE. ML:2.0 0.00010805000000000001 0.48 AML other m 2017-03-25T20:09:35.26
GU.EQUI.HHN. ML:2.0 0.00010395 0.28 AML other m 2017-03-25T20:09:35.49
IV.PARC.HHN. ML:0.0 0.000033204425 2.2656 AML other m 2017-03-25T20:09:34.90
TV.SF01.EHN. ML:0.0 0.00007980966 2.2016 AML other m 2017-03-25T20:09:36.03
IV.ATMI.HHN. ML:2.0 0.00009109999999999999 1.28 AML other m 2017-03-25T20:09:39.87
TV.SF01.EHE. ML:0.0 0.0000892809 5.2992 AML other m 2017-03-25T20:09:35.49
IV.BRIS.HHN. ML:1.7 0.0000616 0.54 AML other m 2017-03-25T20:09:40.59
IV.PARC.HHE. ML:0.0 0.000050306295 2.944 AML other m 2017-03-25T20:09:35.56
IV.BRIS.HHE. ML:1.9 0.0000963 0.66 AML other m 2017-03-25T20:09:44.48
IV.PIEI.HHN. ML:1.4 0.000019999999999999998 0.82 AML other m 2017-03-25T20:09:45.07
IV.ATPI.EHN. ML:1.7 0.0000407 1.48 AML other m 2017-03-25T20:09:46.74
IV.ATPI.EHE. ML:1.6 0.0000308 0.42 AML other m 2017-03-25T20:09:46.90
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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