Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 25-11-2016 and time 08:18:27 (UTC) in region 4 km E Castelfiorentino (FI)

A magnitude ML 2.4 earthquake occured in region: 4 km E Castelfiorentino (FI), on

  • 25-11-2016 08:18:27 (UTC)
  • 25-11-2016 09:18:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6180, 11.0160 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
Castelfiorentino FI 4 17504 17504
Montespertoli FI 6 13537 31041
Certaldo FI 8 16121 47162
Gambassi Terme FI 10 4870 52032
Montaione FI 11 3700 55732
Montelupo Fiorentino FI 13 14098 69830
Empoli FI 13 48109 117939
Tavarnelle Val di Pesa FI 14 7800 125739
San Casciano in Val di Pesa FI 14 17062 142801
Capraia e Limite FI 14 7670 150471
San Miniato PI 15 27934 178405
Barberino Val d'Elsa FI 15 4386 182791
San Gimignano SI 17 7820 190611
Lastra a Signa FI 19 20156 210767
Cerreto Guidi FI 19 10870 221637
Palaia PI 20 4612 226249
Signa FI 20 19179 245428
Poggibonsi SI 20 29196 274624

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km SW of Scandicci (50609 inhabitants)
26 Km SW of Firenze (382808 inhabitants)
30 Km S of Prato (191150 inhabitants)
36 Km S of Pistoia (90315 inhabitants)
42 Km NW of Siena (53903 inhabitants)
48 Km SE of Lucca (89046 inhabitants)
51 Km E of Pisa (89158 inhabitants)
57 Km E of Livorno (159219 inhabitants)
68 Km E of Viareggio (62467 inhabitants)
72 Km W of Arezzo (99543 inhabitants)
84 Km SE of Massa (69479 inhabitants)
90 Km SE of Carrara (63133 inhabitants)
96 Km N of Grosseto (82087 inhabitants)
99 Km SW of Imola (69797 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 2016-11-25
08:18:27		 43.6177 11.016 8 2017-04-18
09:59:24		 Bollettino Sismico Italiano INGV 44047801
Reviewed
Rev100 		ML 2.4 2016-11-25
08:18:27		 43.6147 11.0173 9 2016-11-25
08:38:31		 Sala Sismica INGV-Roma 34570051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-11-25 08:18:27 ± 0.07
Latitude 43.6177 ± 0.0027
Longitude 11.0160 ± 0.0050
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 44047801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 369
Semi-minor axis of confidence ellipse (meter) 130
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 238
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 43
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 54
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.19160
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 42
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 30
Type of magnitude ML
Reference to an origin 44047801
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-04-18 09:59:24

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 29
Type of magnitude ML
Reference to an origin 34570051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-11-25 08:38:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSP9.EHZ. 2016-11-25T08:18:54.49 0.6 undecidable manual S 93 89.7435 50 0.23 43
IV.GROG.HHZ. 2016-11-25T08:18:54.98 0.6 undecidable manual S 257 92.8404 50 -0.12 43
IV.CRE.HHZ. 2016-11-25T08:18:50.01 0.3 undecidable manual S 90 75.1692 50 -0.36 64
IV.SFI.EHZ. 2016-11-25T08:18:49.46 0.3 undecidable manual S 64 73.7706 50 -0.55 61
IV.MAON.HHN. 2016-11-25T08:18:49.80 0.6 undecidable manual P 176 132.2676 50 0.44 37
IV.NARO.HHZ. 2016-11-25T08:18:48.36 0.6 undecidable manual P 90 125.6742 50 0.01 41
GU.GRAM.HHZ. 2016-11-25T08:18:48.13 0.6 undecidable manual P 322 122.988 50 0.19 40
IV.PIEI.HHZ. 2016-11-25T08:18:48.12 0.6 undecidable manual P 94 122.3886 50 0.27 39
IV.CELB.HHZ. 2016-11-25T08:18:47.04 0.3 undecidable manual P 0.21 60
IV.ATVO.HHZ. 2016-11-25T08:18:47.17 0.6 undecidable manual P 103 114.8961 50 0.48 38
IV.MGAB.HHZ. 2016-11-25T08:18:47.07 0.6 undecidable manual P 131 118.0929 50 -0.12 41
IV.FNVD.HHZ. 2016-11-25T08:18:47.17 0.6 undecidable manual S 8 61.5939 50 0.41 43
IV.ATPI.EHZ. 2016-11-25T08:18:46.65 0.6 undecidable manual P 99 112.998 50 0.25 40
IV.SACS.HHZ. 2016-11-25T08:18:46.28 0.6 undecidable manual P 139 111.6993 50 0.08 42
IV.PLMA.HHE. 2016-11-25T08:18:45.46 0.1 undecidable manual P 0.39 79
IV.ATMI.HHZ. 2016-11-25T08:18:45.46 0.3 undecidable manual P 107 105.6165 50 0.21 62
TV.SF03.EHN. 2016-11-25T08:18:45.56 0.1 positive manual P 149 105.3168 50 0.34 80
IV.SEI.HHZ. 2016-11-25T08:18:45.40 0.6 undecidable manual S 29 55.6998 50 0.23 45
IV.MCIV.HHZ. 2016-11-25T08:18:45.75 0.3 undecidable manual P 150 107.3148 50 0.23 61
IV.BADI.EHZ. 2016-11-25T08:18:44.31 0.6 undecidable manual P 0.1 42
TV.SF11.HHZ. 2016-11-25T08:18:44.45 0.1 undecidable manual P 147 98.8233 50 0.23 83
TV.SF04.EHZ. 2016-11-25T08:18:44.78 0.6 undecidable manual P 149 101.2209 50 0.21 42
TV.SF13.HHN. 2016-11-25T08:18:44.90 0.1 positive manual P 151 101.2209 50 0.32 81
IV.TRIF.HHZ. 2016-11-25T08:18:44.49 0.3 undecidable manual S -0.7 59
TV.SF01.EHZ. 2016-11-25T08:18:44.43 0.3 undecidable manual P 153 99.7224 50 0.08 64
IV.GROG.HHZ. 2016-11-25T08:18:43.40 0.6 undecidable manual P 257 92.8404 50 0.11 43
GU.EQUI.HHZ. 2016-11-25T08:18:43.23 0.3 undecidable manual P 312 91.9413 50 0.07 66
IV.SSP9.EHZ. 2016-11-25T08:18:43.00 0.6 undecidable manual P 93 89.7435 50 0.19 43
IV.CASP.HHZ. 2016-11-25T08:18:43.59 0.3 undecidable manual P 188 92.5407 50 0.35 62
IV.BRIS.HHZ. 2016-11-25T08:18:43.35 0.6 undecidable manual P 41 90.1431 50 0.47 40
GU.GSCL.HHZ. 2016-11-25T08:18:43.03 0.3 undecidable manual P 337 88.1451 50 0.46 61
IV.ARCI.HHZ. 2016-11-25T08:18:43.19 0.3 undecidable manual P 156 92.7405 50 -0.08 65
IV.MTCR.EHZ. 2016-11-25T08:18:42.72 0.6 undecidable manual S 359 45.5211 50 0.25 46
MN.VLC.HHZ. 2016-11-25T08:18:41.00 0.3 undecidable manual P 320 78.366 50 -0.06 67
IV.CAFI.HHZ. 2016-11-25T08:18:41.87 0.1 negative manual P 112 82.9503 50 0.11 88
IV.SFI.EHZ. 2016-11-25T08:18:40.43 0.3 undecidable manual P 64 73.7706 50 0.08 68
IV.MPPT.EHZ. 2016-11-25T08:18:40.16 0.3 undecidable manual S 9 38.1285 50 -0.34 68
IV.CRE.HHZ. 2016-11-25T08:18:40.61 0.1 undecidable manual P 90 75.1692 50 0.05 91
IV.ASQU.HHZ. 2016-11-25T08:18:39.08 0.3 undecidable manual P 72 65.0904 50 0.06 69
IV.FNVD.HHZ. 2016-11-25T08:18:38.41 0.3 undecidable manual P 8 61.5939 50 -0.07 69
GU.CARD.HHZ. 2016-11-25T08:18:38.43 0.1 negative manual P 317 62.2932 50 -0.15 91
IV.BDI.HHZ. 2016-11-25T08:18:38.03 0.3 undecidable manual P 326 59.7957 50 -0.16 68
IV.TRIF.HHZ. 2016-11-25T08:18:37.33 0.3 undecidable manual P -0.24 67
IV.SEI.HHZ. 2016-11-25T08:18:37.43 0.3 undecidable manual P 29 55.6998 50 -0.13 69
GU.MAIM.HHZ. 2016-11-25T08:18:36.97 0.1 negative manual P 308 53.4021 50 -0.23 91
IV.CSNT.HHZ. 2016-11-25T08:18:36.74 0.6 undecidable manual S 126 27.2505 106 -0.27 47
IV.MTCR.EHZ. 2016-11-25T08:18:35.60 0.1 undecidable manual P 359 45.5211 50 -0.4 89
IV.FROS.HHZ. 2016-11-25T08:18:35.80 0.1 negative manual P 166 46.62 50 -0.37 89
IV.CRMI.HHZ. 2016-11-25T08:18:34.57 0.3 undecidable manual S 352 19.9689 112 -0.05 75
IV.MPPT.EHZ. 2016-11-25T08:18:34.48 0.1 positive manual P 9 38.1285 50 -0.38 90
IV.OSSC.HHZ. 2016-11-25T08:18:34.93 0.3 undecidable manual S 119 21.1677 111 -0.09 74
IV.CSNT.HHZ. 2016-11-25T08:18:32.50 0.1 negative manual P 126 27.2505 106 -0.35 93
IV.CRMI.HHZ. 2016-11-25T08:18:31.60 0.1 positive manual P 352 19.9689 112 0.13 99
IV.OSSC.HHZ. 2016-11-25T08:18:31.75 0.1 negative manual P 119 21.1677 111 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARCI.HHN. ML:2.4 0.00026249999999999993 1.66 AML other m 2016-11-25T08:18:58.10
IV.ARCI.HHE. ML:2.2 0.00018449999999999999 1.5 AML other m 2016-11-25T08:19:00.75
IV.ASQU.HHE. ML:2.6 0.0008365 0.22 AML other m 2016-11-25T08:18:49.19
IV.ASQU.HHN. ML:2.6 0.000756 0.26 AML other m 2016-11-25T08:18:49.65
IV.ATMI.HHE. ML:2.6 0.0003605 0.42 AML other m 2016-11-25T08:18:48.26
IV.ATMI.HHN. ML:2.6 0.00032999999999999994 0.42 AML other m 2016-11-25T08:18:48.94
IV.ATPI.EHE. ML:2.1 0.0000988 0.36 AML other m 2016-11-25T08:19:05.45
IV.ATPI.EHN. ML:2.1 0.00010735000000000001 1.28 AML other m 2016-11-25T08:19:10.68
IV.ATVO.HHN. ML:2.3 0.00014500000000000003 0.46 AML other m 2016-11-25T08:19:09.16
IV.ATVO.HHE. ML:2.3 0.00015999999999999999 0.68 AML other m 2016-11-25T08:19:10.25
IV.BDI.HNN. ML:2.5 0.0006314999999999999 1.74 AML other m 2016-11-25T08:18:50.87
IV.BDI.HHN. ML:2.1 0.0002395 0.44 AML other m 2016-11-25T08:18:51.80
IV.BDI.HNE. ML:2.6 0.0008 0.24 AML other m 2016-11-25T08:18:48.33
IV.BDI.HHE. ML:2.2 0.0003485 0.24 AML other m 2016-11-25T08:18:48.33
IV.BRIS.HHE. ML:2.4 0.0003275 0.52 AML other m 2016-11-25T08:19:07.41
IV.BRIS.HHN. ML:2.3 0.0002135 0.6 AML other m 2016-11-25T08:19:05.58
IV.CAFI.HNE. ML:2.0 0.000146 0.6 AML other m 2016-11-25T08:18:42.50
IV.CAFI.HHE. ML:2.1 0.0001515 0.6 AML other m 2016-11-25T08:18:42.20
IV.CAFI.HNN. ML:2.1 0.0001505 1.08 AML other m 2016-11-25T08:18:44.90
IV.CAFI.HHN. ML:2.1 0.00015250000000000002 1.08 AML other m 2016-11-25T08:18:44.36
GU.CARD.HHN. ML:2.7 0.001024 1.18 AML other m 2016-11-25T08:18:48.86
GU.CARD.HHE. ML:2.7 0.0009350000000000001 1.72 AML other m 2016-11-25T08:18:49.92
IV.CASP.HHE. ML:2.5 0.0003345 1.5 AML other m 2016-11-25T08:18:57.80
IV.CASP.HHN. ML:2.3 0.0002465 0.46 AML other m 2016-11-25T08:18:58.27
IV.CELB.HHN. ML:2.4 0.00020050000000000002 0.48 AML other m 2016-11-25T08:18:51.37
IV.CELB.HHE. ML:2.4 0.00021150000000000002 1.18 AML other m 2016-11-25T08:18:48.86
IV.CRE.HHE. ML:2.4 0.00034199999999999996 0.5 AML other m 2016-11-25T08:18:50.55
IV.CRE.HHN. ML:2.5 0.00044500000000000003 0.34 AML other m 2016-11-25T08:18:54.72
IV.CSNT.HHN. ML:2.4 0.0015950000000000003 0.58 AML other m 2016-11-25T08:18:38.30
IV.CSNT.HHE. ML:2.4 0.001395 0.36 AML other m 2016-11-25T08:18:38.41
ST.DOSS.HHE. ML:2.5 0.000056500000000000005 1.22 AML other m 2016-11-25T08:19:44.84
ST.DOSS.HHN. ML:2.6 0.0000724 0.96 AML other m 2016-11-25T08:19:44.96
GU.EQUI.HHE. ML:2.4 0.0002945 0.44 AML other m 2016-11-25T08:18:58.21
GU.EQUI.HHN. ML:2.5 0.000343 0.26 AML other m 2016-11-25T08:18:58.43
IV.FNVD.HHN. ML:2.4 0.0005434999999999999 0.3 AML other m 2016-11-25T08:18:51.24
IV.FNVD.HHE. ML:2.4 0.00048450000000000007 0.42 AML other m 2016-11-25T08:18:51.30
SI.LUSI.HHE. ML:2.5 0.000053 0.52 AML other m 2016-11-25T08:19:48.01
SI.LUSI.HHN. ML:2.7 0.0000813 0.3 AML other m 2016-11-25T08:19:48.78
GU.MAIM.HHN. ML:2.3 0.00047999999999999996 0.86 AML other m 2016-11-25T08:18:43.42
GU.MAIM.HHE. ML:2.2 0.000424 1.26 AML other m 2016-11-25T08:18:37.28
IV.MGAB.HHN. ML:2.2 0.00011300000000000001 1.58 AML other m 2016-11-25T08:18:58.99
IV.MGAB.HHE. ML:2.1 0.0001042 0.76 AML other m 2016-11-25T08:18:52.55
IV.MGAB.HNE. ML:2.2 0.000136 0.72 AML other m 2016-11-25T08:18:52.92
IV.MGAB.HNN. ML:2.2 0.000117 1.58 AML other m 2016-11-25T08:18:58.20
IV.MPPT.EHN. ML:2.4 0.0009485 1.16 AML other m 2016-11-25T08:18:41.64
IV.MPPT.EHE. ML:2.4 0.0009419999999999999 1.66 AML other m 2016-11-25T08:18:41.85
IV.MTCR.EHN. ML:2.6 0.00123 1.22 AML other m 2016-11-25T08:18:43.18
IV.MTCR.EHE. ML:2.6 0.0010689999999999999 1.38 AML other m 2016-11-25T08:18:43.20
IV.OSSC.HHN. ML:2.5 0.002485 0.18 AML other m 2016-11-25T08:18:35.46
IV.OSSC.HNE. ML:2.5 0.0024700000000000004 0.18 AML other m 2016-11-25T08:18:35.46
IV.OSSC.HNN. ML:2.8 0.004189999999999999 1.52 AML other m 2016-11-25T08:18:35.83
IV.OSSC.HHE. ML:2.8 0.00424 1.52 AML other m 2016-11-25T08:18:36.83
IV.PIEI.HHE. ML:2.1 0.00010085 0.42 AML other m 2016-11-25T08:18:50.31
IV.PIEI.HHN. ML:1.9 0.00005735 0.94 AML other m 2016-11-25T08:18:49.98
IV.SEI.HHE. ML:2.5 0.0008349999999999999 1.2 AML other m 2016-11-25T08:18:49.64
IV.SEI.HHN. ML:2.9 0.001785 0.34 AML other m 2016-11-25T08:18:49.19
TV.SF01.EHN. ML:2.7 0.0005015000000000001 0.42 AML other m 2016-11-25T08:19:01.37
TV.SF01.EHE. ML:2.6 0.00035850000000000004 0.4 AML other m 2016-11-25T08:19:01.78
TV.SF04.EHE. ML:2.7 0.000512 0.22 AML other m 2016-11-25T08:18:45.60
TV.SF04.EHN. ML:2.6 0.00042 1.12 AML other m 2016-11-25T08:18:45.05
IV.SFI.HNN. ML:2.6 0.0005545 1.6 AML other m 2016-11-25T08:18:52.89
IV.SFI.EHE. ML:2.6 0.0006339999999999999 1.68 AML other m 2016-11-25T08:18:50.84
IV.SFI.HNE. ML:2.6 0.0006465 1.68 AML other m 2016-11-25T08:18:50.84
IV.SFI.EHN. ML:2.6 0.000575 1.6 AML other m 2016-11-25T08:18:52.09
IV.SSP9.EHN. ML:2.4 0.00027 1.36 AML other m 2016-11-25T08:18:57.28
IV.SSP9.EHE. ML:2.3 0.000245 0.68 AML other m 2016-11-25T08:18:57.60
IV.TRIF.HHN. ML:2.5 0.0007955 1.12 AML other m 2016-11-25T08:18:45.62
IV.TRIF.HHE. ML:2.5 0.0007085 1 AML other m 2016-11-25T08:18:46.82
MN.VLC.HNE. ML:2.2 0.00022250000000000001 1.6 AML other m 2016-11-25T08:18:52.94
MN.VLC.HNN. ML:2.3 0.00027800000000000004 0.74 AML other m 2016-11-25T08:18:54.02
MN.VLC.HHN. ML:2.3 0.000263 0.74 AML other m 2016-11-25T08:18:54.02
MN.VLC.HHE. ML:2.2 0.0002295 1.6 AML other m 2016-11-25T08:18:52.94
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