Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 14-09-2023 and time 18:11:25 (Italy) in region 1 km NE Castelfiorentino (FI)

A magnitude ML 2.0 earthquake occured in region: 1 km NE Castelfiorentino (FI), on

  • 14-09-2023 16:11:25 (UTC)
  • 14-09-2023 18:11:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6190, 10.9790 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 8 13537 31041
Montaione FI 9 3700 34741
Gambassi Terme FI 9 4870 39611
Certaldo FI 9 16121 55732
Empoli FI 12 48109 103841
San Miniato PI 12 27934 131775
Montelupo Fiorentino FI 13 14098 145873
Capraia e Limite FI 14 7670 153543
Palaia PI 17 4612 158155
Tavarnelle Val di Pesa FI 17 7800 165955
San Casciano in Val di Pesa FI 17 17062 183017
San Gimignano SI 18 7820 190837
Barberino Val d'Elsa FI 18 4386 195223
Cerreto Guidi FI 18 10870 206093
Fucecchio FI 18 23618 229711
Montopoli in Val d'Arno PI 18 11148 240859
Santa Croce sull'Arno PI 19 14601 255460
Vinci FI 19 14604 270064
Lastra a Signa FI 20 20156 290220

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km SW of Scandicci (50609 inhabitants)
28 Km SW of Firenze (382808 inhabitants)
31 Km SW of Prato (191150 inhabitants)
35 Km S of Pistoia (90315 inhabitants)
44 Km NW of Siena (53903 inhabitants)
46 Km SE of Lucca (89046 inhabitants)
48 Km E of Pisa (89158 inhabitants)
54 Km E of Livorno (159219 inhabitants)
65 Km E of Viareggio (62467 inhabitants)
75 Km W of Arezzo (99543 inhabitants)
82 Km SE of Massa (69479 inhabitants)
87 Km SE of Carrara (63133 inhabitants)
96 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
Reviewed
Rev100 		ML 2.0 2023-09-14
16:11:25		 43.6192 10.9788 10 2023-09-14
16:21:42		 Sala Sismica INGV-Roma 121053461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-14 16:11:25 ± 0.11
Latitude 43.6192 ± 0.0036
Longitude 10.9788 ± 0.0075
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121053461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 558
Semi-minor axis of confidence ellipse (meter) 179
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 251
Circular confidence region, given by single value of horizontal uncertainty (meter) 560.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
Number of associated phases, regardless of their use for origin computation 58
Number of defining phases 38
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.84806
Number of stations at which the event was observed 44
Number of stations from which data was used for origin computation 24
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 62
Type of magnitude ML
Reference to an origin 121053461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-14 16:21:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LRP.EHZ. 2023-09-14T16:12:48.88 3.0 undecidable manual Sn 5.21 0
IV.MMO1.EHZ. 2023-09-14T16:12:28.22 3.0 undecidable manual Sg 6.41 0
IV.GUMA.HHZ. 2023-09-14T16:12:27.65 3.0 undecidable manual Sg 7.14 0
IV.MF5.EHZ. 2023-09-14T16:12:01.50 3.0 undecidable manual Pg 3.83 0
GU.RNCA.HHZ. 2023-09-14T16:11:57.93 3.0 undecidable manual Pg 3.6 0
IV.MML1.EHZ. 2023-09-14T16:11:54.83 3.0 negative manual P 2.36 0
IV.ATCC.EHZ. 2023-09-14T16:11:51.05 3.0 positive manual P 2.05 0
IV.MURB.HHZ. 2023-09-14T16:11:49.15 3.0 undecidable manual P 1.59 0
IV.SFI.EHZ. 2023-09-14T16:11:48.27 0.6 undecidable manual S 65 76.4679 50 0.03 47
IV.PIEI.HHZ. 2023-09-14T16:11:47.04 3.0 positive manual P 0.14 0
IV.MGAB.HHZ. 2023-09-14T16:11:46.20 3.0 positive manual P -0.09 0
IV.ATMI.HHZ. 2023-09-14T16:11:45.18 3.0 positive manual P 0.64 0
IV.ATVO.HHZ. 2023-09-14T16:11:45.62 3.0 negative manual P -0.35 0
IV.ATPI.EHZ. 2023-09-14T16:11:45.33 3.0 undecidable manual P -0.41 0
IV.RINC.EHZ. 2023-09-14T16:11:43.53 0.6 undecidable manual S 59 58.3971 50 0.1 48
IV.SEI.HHZ. 2023-09-14T16:11:43.87 0.6 undecidable manual S 32 56.9985 50 0.81 39
IV.BADI.EHZ. 2023-09-14T16:11:43.52 3.0 positive manual P 0 0
IV.PARC.HHZ. 2023-09-14T16:11:43.48 3.0 positive manual P 0.19 0
IV.CASP.HHZ. 2023-09-14T16:11:42.03 3.0 positive manual P 0.31 0
IV.PLMA.HHZ. 2023-09-14T16:11:42.93 3.0 undecidable manual P -0.17 0
IV.TRIF.CHZ. 2023-09-14T16:11:42.56 0.6 undecidable manual S 186 56.2992 50 -0.31 46
IV.ARCI.HHZ. 2023-09-14T16:11:41.63 0.1 undecidable manual P 155 94.1391 50 0.43 83
GU.MAIM.HHZ. 2023-09-14T16:11:40.41 0.6 undecidable manual S 310 50.9157 50 -1 36
GU.EQUI.HHZ. 2023-09-14T16:11:40.88 0.1 undecidable manual P 313 89.6436 50 0.36 85
IV.BOSL.HHZ. 2023-09-14T16:11:40.18 0.6 undecidable manual S 42 46.9197 50 -0.17 48
IV.CAFI.HHZ. 2023-09-14T16:11:40.48 3.0 negative manual P -0.25 0
IV.RUFI.EHZ. 2023-09-14T16:11:40.52 0.3 undecidable manual S 60 49.0176 50 -0.39 68
IV.FROS.CHZ. 2023-09-14T16:11:39.98 0.3 undecidable manual S 162 47.619 50 -0.57 65
IV.CRE.HHZ. 2023-09-14T16:11:39.23 3.0 positive manual P -0.2 0
IV.RIBO.EHZ. 2023-09-14T16:11:39.03 3.0 positive manual P 0.26 0
IV.MOCL.EHZ. 2023-09-14T16:11:39.98 0.6 undecidable manual S 21 45.7209 50 -0.06 49
IV.PSL.EHZ. 2023-09-14T16:11:39.15 0.6 undecidable manual S 355 43.4232 50 -0.28 47
IV.SFI.EHZ. 2023-09-14T16:11:39.14 0.6 positive manual P 65 76.4679 50 0.66 40
IV.VISG.HHN. 2023-09-14T16:11:38.38 0.1 undecidable manual P 30 72.9714 50 0.44 86
MN.VLC.HHZ. 2023-09-14T16:11:38.72 0.1 negative manual P 322 76.368 50 0.25 89
IV.LOCA.HNN. 2023-09-14T16:11:38.56 0.6 undecidable manual S 147 41.5251 50 -0.36 46
IV.MPPT.EHZ. 2023-09-14T16:11:37.63 0.3 undecidable manual S 13 38.5281 50 -0.5 68
IV.FNVD.HHZ. 2023-09-14T16:11:36.54 0.1 undecidable manual P 11 61.8936 50 0.29 91
IV.VMGN.HHZ. 2023-09-14T16:11:36.10 0.1 undecidable manual P 50 57.8976 50 0.48 88
GU.CARD.HHZ. 2023-09-14T16:11:35.92 0.1 undecidable manual P 319 60.1953 50 -0.05 96
IV.RINC.EHZ. 2023-09-14T16:11:35.92 0.1 undecidable manual P 59 58.3971 50 0.22 93
IV.SEI.HHZ. 2023-09-14T16:11:35.84 0.1 undecidable manual P 32 56.9985 50 0.35 91
IV.TRIF.CHZ. 2023-09-14T16:11:35.89 0.1 undecidable manual P 186 56.2992 50 0.51 87
IV.OSSC.HHZ. 2023-09-14T16:11:34.18 0.3 undecidable manual S 116 23.9538 113 0.03 77
IV.RUFI.EHZ. 2023-09-14T16:11:34.15 0.1 undecidable manual P 60 49.0176 50 -0.1 97
GU.MAIM.HHZ. 2023-09-14T16:11:34.52 0.1 negative manual P 310 50.9157 50 -0.02 98
IV.FROS.CHZ. 2023-09-14T16:11:34.25 0.1 undecidable manual P 162 47.619 50 0.21 95
GU.POPM.HHZ. 2023-09-14T16:11:34.70 0.1 undecidable manual P 339 50.5161 50 0.22 94
IV.BOSL.HHZ. 2023-09-14T16:11:33.90 0.6 negative manual P 42 46.9197 50 -0.03 49
IV.MOCL.EHZ. 2023-09-14T16:11:33.57 0.6 positive manual P 21 45.7209 50 -0.18 48
IV.PSL.EHZ. 2023-09-14T16:11:33.11 0.1 undecidable manual P 355 43.4232 50 -0.28 94
IV.CRMI.HHZ. 2023-09-14T16:11:32.26 0.6 undecidable manual S 0 19.5693 117 -0.52 47
IV.LOCA.HNN. 2023-09-14T16:11:32.80 0.1 undecidable manual P 147 41.5251 50 -0.3 94
IV.MPPT.EHZ. 2023-09-14T16:11:32.38 0.3 positive manual P 13 38.5281 50 -0.27 72
IT.FIE.HGE. 2023-09-14T16:11:31.61 0.1 undecidable manual P 50 32.745 50 -0.14 99
IV.OSSC.HHZ. 2023-09-14T16:11:30.18 0.1 undecidable manual P 116 23.9538 113 -0.17 100
IV.CSNT.HHZ. 2023-09-14T16:11:30.97 0.1 negative manual P 123 29.8479 50 -0.33 96
IV.CRMI.HHZ. 2023-09-14T16:11:29.35 0.1 positive manual P 0 19.5693 117 -0.2 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRMI.HHN. ML:2.3 0.001685 0.18 AML other m 2023-09-14T16:11:32.57
IV.CRMI.HNN. ML:2.3 0.001585 0.18 AML other m 2023-09-14T16:11:32.57
IV.CRMI.HNE. ML:2.4 0.002125 0.64 AML other m 2023-09-14T16:11:32.72
IV.CRMI.HHE. ML:2.3 0.0015049999999999998 0.66 AML other m 2023-09-14T16:11:32.73
IV.OSSC.HHE. ML:2.2 0.0009310000000000001 1.58 AML other m 2023-09-14T16:11:35.13
IV.OSSC.HHN. ML:2.2 0.0009755 0.54 AML other m 2023-09-14T16:11:35.29
IV.MPPT.EHN. ML:2.0 0.00035850000000000004 0.7 AML other m 2023-09-14T16:11:38.37
IV.CSNT.HHE. ML:1.9 0.0003795 0.8 AML other m 2023-09-14T16:11:39.93
IV.CSNT.HHN. ML:2.0 0.000455 1.4 AML other m 2023-09-14T16:11:39.86
IV.MPPT.EHE. ML:2.0 0.0003715 0.34 AML other m 2023-09-14T16:11:39.81
IV.BOSL.HHE. ML:1.8 0.0001895 1.68 AML other m 2023-09-14T16:11:40.88
IV.CAFI.HHE. ML:1.6 0.00005475 0.4 AML other m 2023-09-14T16:11:40.79
IV.BOSL.HHN. ML:1.8 0.000161 1.68 AML other m 2023-09-14T16:11:41.06
GU.MAIM.HHE. ML:1.9 0.000193 1.78 AML other m 2023-09-14T16:11:41.08
GU.MAIM.HHN. ML:1.9 0.0001865 1.8 AML other m 2023-09-14T16:11:41.09
IV.RUFI.EHE. ML:2.0 0.0002695 0.5 AML other m 2023-09-14T16:11:41.34
IV.MOCL.EHN. ML:2.0 0.000324 0.42 AML other m 2023-09-14T16:11:41.34
IV.FROS.CHN. ML:2.7 0.00135 0.46 AML other m 2023-09-14T16:11:41.65
IV.MOCL.EHE. ML:2.2 0.00041549999999999996 0.54 AML other m 2023-09-14T16:11:41.52
IV.RUFI.EHN. ML:2.1 0.0003395 1.16 AML other m 2023-09-14T16:11:41.35
IV.FROS.CHE. ML:2.4 0.0006705000000000001 0.44 AML other m 2023-09-14T16:11:42.86
IV.TRIF.CHN. ML:2.2 0.0003845 1.24 AML other m 2023-09-14T16:11:44.18
IV.TRIF.CHE. ML:2.2 0.0003715 0.14 AML other m 2023-09-14T16:11:44.89
IV.RINC.EHE. ML:2.1 0.00027499999999999996 1.1 AML other m 2023-09-14T16:11:45.18
IV.RINC.EHN. ML:2.1 0.000262 1.16 AML other m 2023-09-14T16:11:46.97
IV.VMGN.HHN. ML:1.9 0.00016199999999999998 1.18 AML other m 2023-09-14T16:11:46.01
IV.ATMI.HHE. ML:2.2 0.00014000000000000001 0.44 AML other m 2023-09-14T16:11:46.85
IV.VMGN.HHE. ML:1.8 0.00013550000000000001 0.36 AML other m 2023-09-14T16:11:47.33
IV.SEI.HHN. ML:2.4 0.0005325 0.3 AML other m 2023-09-14T16:11:47.80
IV.PIEI.HHN. ML:1.3 0.0000174 0.34 AML other m 2023-09-14T16:11:48.36
IV.PIEI.HHE. ML:1.8 0.00003875000000000001 0.38 AML other m 2023-09-14T16:11:48.02
IV.SEI.HHE. ML:2.1 0.000286 0.34 AML other m 2023-09-14T16:11:48.27
IV.CRE.HHE. ML:1.9 0.0001205 1.18 AML other m 2023-09-14T16:11:50.09
MN.VLC.HHN. ML:1.8 0.0000975 1.32 AML other m 2023-09-14T16:11:50.09
IV.CRE.HHN. ML:2.1 0.000184 0.28 AML other m 2023-09-14T16:11:51.18
MN.VLC.HHE. ML:1.8 0.00010650000000000001 0.48 AML other m 2023-09-14T16:11:51.46
IV.SFI.EHE. ML:2.0 0.0001595 0.76 AML other m 2023-09-14T16:11:51.72
IV.MGAB.HHN. ML:1.7 0.00004 0.78 AML other m 2023-09-14T16:11:51.83
IV.SFI.EHN. ML:2.0 0.00016199999999999998 0.58 AML other m 2023-09-14T16:11:52.37
IV.RIBO.EHE.01 ML:2.1 0.00020150000000000002 0.9 AML other m 2023-09-14T16:11:52.68
IV.CAFI.HHN. ML:1.7 0.0000577 0.84 AML other m 2023-09-14T16:11:53.47
IV.RIBO.EHN.01 ML:2.1 0.000183 0.74 AML other m 2023-09-14T16:11:54.62
GU.EQUI.HHE. ML:1.9 0.00008999999999999999 1.22 AML other m 2023-09-14T16:11:54.81
IV.MURB.HHN. ML:2.3 0.000127 0.28 AML other m 2023-09-14T16:11:55.15
GU.EQUI.HHN. ML:1.9 0.00010045 0.62 AML other m 2023-09-14T16:11:55.60
IV.CASP.HHE. ML:1.9 0.000089 0.5 AML other m 2023-09-14T16:11:56.27
IV.CASP.HHN. ML:1.9 0.00009395000000000001 1.68 AML other m 2023-09-14T16:11:56.03
IV.ARCI.HHN. ML:1.8 0.00007439999999999999 0.7 AML other m 2023-09-14T16:11:56.61
IV.ARCI.HHE. ML:1.8 0.0000668 0.52 AML other m 2023-09-14T16:11:56.31
IV.CASP.HNE. ML:2.2 0.00017649999999999998 1.06 AML other m 2023-09-14T16:11:56.28
IV.BADI.EHE. ML:1.7 0.00005165 0.42 AML other m 2023-09-14T16:11:59.24
IV.PARC.HHN. ML:1.9 0.00006895 1.46 AML other m 2023-09-14T16:11:59.06
IV.BADI.EHN. ML:1.8 0.00006705 0.46 AML other m 2023-09-14T16:12:00.17
IV.PARC.HHE. ML:1.8 0.000057249999999999996 1.36 AML other m 2023-09-14T16:12:01.12
IV.MGAB.HHE. ML:1.7 0.000033 0.7 AML other m 2023-09-14T16:12:02.87
IV.ATPI.EHN. ML:1.7 0.000039800000000000005 0.42 AML other m 2023-09-14T16:12:02.32
IV.CASP.HNN. ML:2.1 0.00014524999999999998 0.48 AML other m 2023-09-14T16:12:05.48
IV.ATVO.HHN. ML:1.8 0.00004495 1.4 AML other m 2023-09-14T16:12:06.78
IV.ATVO.HHE. ML:1.7 0.0000396 0.46 AML other m 2023-09-14T16:12:07.29
IV.ATMI.HHN. ML:2.2 0.000128 0.62 AML other m 2023-09-14T16:12:07.67
IV.ATPI.EHE. ML:1.6 0.000029150000000000004 1.38 AML other m 2023-09-14T16:12:11.07
IV.MURB.HHE. ML:2.3 0.0001215 1.7 AML other m 2023-09-14T16:12:13.93
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