Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 02-04-2024 and time 12:12:12 (Italy) in region 5 km NE Certaldo (FI)

A magnitude ML 1.9 earthquake occured in region: 5 km NE Certaldo (FI), on

  • 02-04-2024 10:12:12 (UTC)
  • 02-04-2024 12:12:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5890, 11.0760 at 9 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.

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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
Certaldo FI 5 16121 16121
Montespertoli FI 6 13537 29658
Tavarnelle Val di Pesa FI 8 7800 37458
Castelfiorentino FI 9 17504 54962
Barberino Val d'Elsa FI 9 4386 59348
Gambassi Terme FI 11 4870 64218
San Casciano in Val di Pesa FI 12 17062 81280
San Gimignano SI 14 7820 89100
Montaione FI 14 3700 92800
Poggibonsi SI 15 29196 121996
Montelupo Fiorentino FI 16 14098 136094
Empoli FI 18 48109 184203
Impruneta FI 18 14615 198818
Capraia e Limite FI 19 7670 206488
Colle di Val d'Elsa SI 19 21620 228108
Greve in Chianti FI 20 13862 241970

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km SW of Scandicci (50609 inhabitants)
25 Km SW of Firenze (382808 inhabitants)
33 Km S of Prato (191150 inhabitants)
37 Km NW of Siena (53903 inhabitants)
41 Km SE of Pistoia (90315 inhabitants)
54 Km SE of Lucca (89046 inhabitants)
56 Km E of Pisa (89158 inhabitants)
62 Km E of Livorno (159219 inhabitants)
66 Km W of Arezzo (99543 inhabitants)
73 Km E of Viareggio (62467 inhabitants)
90 Km SE of Massa (69479 inhabitants)
92 Km N of Grosseto (82087 inhabitants)
96 Km SE of Carrara (63133 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
Reviewed
Rev100 		ML 1.9 2024-04-02
10:12:12		 43.589 11.0765 9 2024-04-02
10:27:49		 Sala Sismica INGV-Roma 126399161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-02 10:12:12
Latitude 43.5890
Longitude 11.0765
Depth (km) 9 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126399161

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 700.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 45
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) 0.13939
Epicentral distance of station farthest from the epicenter (degree) 4.02267
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 33
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 15
Type of magnitude ML
Reference to an origin 126399161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-02 10:27:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MRB1.HHZ. 2024-04-02T10:13:57.93 1.0 undecidable manual Sn 128 422.5548 -0.48 0.2
IV.VITU.HHZ. 2024-04-02T10:13:52.29 1.0 undecidable manual Sn 130 397.0026 -0.48 0.23
RF.GEPF.HHZ. 2024-04-02T10:13:48.17 1.0 undecidable manual Sg 28 343.4007 7.18 0
GU.SATI.HHZ. 2024-04-02T10:13:40.42 1.0 undecidable manual Sn 317 357.8751 -3.73 0
ST.GAGG.HHZ. 2024-04-02T10:13:27.57 0.1 undecidable manual Sg 359 279.3093 0.72 1.46
IV.MRB1.HHZ. 2024-04-02T10:13:20.54 0.3 undecidable manual Pg 128 422.5548 8.78 0
IV.CAFE.HHZ. 2024-04-02T10:13:18.11 1.0 undecidable manual Pn 127 446.5197 3.39 0
OX.FUSE.HHZ. 2024-04-02T10:13:02.96 0.6 undecidable manual Pn 25 351.981 -0.07 0.57
IV.MMO1.EHZ. 2024-04-02T10:12:44.27 0.6 undecidable manual Pn 110 200.5437 -0.03 0.85
IV.CASP.HHZ. 2024-04-02T10:12:38.77 0.6 undecidable manual S 191 88.4448 -0.46 0.78
IV.ATVO.HHZ. 2024-04-02T10:12:32.35 1.0 undecidable manual P 99 113.1978 -0.66 0.46
IV.SEI.HHZ. 2024-04-02T10:12:31.01 0.6 undecidable manual S 23 56.3991 0.11 0.77
GU.POPM.HHZ. 2024-04-02T10:12:30.36 0.6 undecidable manual S 334 56.6988 -0.65 0.77
IV.VMGN.HHZ. 2024-04-02T10:12:30.92 0.6 undecidable manual S 41 54.6009 0.48 0.77
IV.RINC.EHZ. 2024-04-02T10:12:29.85 0.6 undecidable manual S 52 53.9016 -0.39 0.77
IV.MOCL.EHZ. 2024-04-02T10:12:28.25 0.6 undecidable manual S 10 46.9197 -0.05 0.77
IV.CASP.HHZ. 2024-04-02T10:12:28.44 0.6 undecidable manual P 191 88.4448 1.07 0.78
IV.ARCI.HHZ. 2024-04-02T10:12:27.74 0.6 undecidable manual P 158 87.9453 0.1 0.77
IV.CRE.HHZ. 2024-04-02T10:12:26.11 0.6 undecidable manual P 85 74.6697 -0.46 0.92
IV.RUFI.EHZ. 2024-04-02T10:12:26.96 0.3 undecidable manual S 51 44.4222 -0.66 1.15
IV.CAFI.HHZ. 2024-04-02T10:12:26.35 0.6 undecidable manual P 108 80.2641 -1.16 0.92
IV.MPPT.EHZ. 2024-04-02T10:12:26.13 0.3 undecidable manual S 1 40.9257 -0.53 1.15
IV.LMD.HHZ. 2024-04-02T10:12:26.36 0.6 undecidable manual P 43 78.6657 -0.88 0.92
IV.RIBO.EHZ. 2024-04-02T10:12:25.24 0.6 undecidable manual P 182 70.9734 0.2 0.77
IV.BDI.HHZ. 2024-04-02T10:12:24.52 0.6 undecidable manual P 324 65.0904 0.39 0.77
GU.CARD.HHZ. 2024-04-02T10:12:24.63 0.6 undecidable manual P 316 68.0763 0.05 0.77
GU.MAIM.HHZ. 2024-04-02T10:12:23.22 0.6 undecidable manual P 308 59.1963 0 0.77
IV.SEI.HHZ. 2024-04-02T10:12:23.49 0.6 undecidable manual P 23 56.3991 0.71 0.77
IV.RINC.EHZ. 2024-04-02T10:12:23.13 0.6 undecidable manual P 52 53.9016 0.72 0.77
IV.VMGN.HHZ. 2024-04-02T10:12:23.24 0.6 undecidable manual P 41 54.6009 0.72 0.77
IV.TRIF.CHZ. 2024-04-02T10:12:22.08 0.6 undecidable manual P 192 51.1155 -0.11 0.92
GU.POPM.HHZ. 2024-04-02T10:12:22.96 0.3 undecidable manual P 334 56.6988 0.12 1.15
IV.PII.HHZ. 2024-04-02T10:12:21.03 0.1 undecidable manual P 289 46.8198 -0.28 1.53
IV.BOSL.HHZ. 2024-04-02T10:12:21.40 0.6 undecidable manual P 32 44.8218 0.39 0.77
IV.RUFI.EHZ. 2024-04-02T10:12:21.14 0.6 undecidable manual P 51 44.4222 0.2 0.77
IV.CRMI.HHZ. 2024-04-02T10:12:21.19 0.3 undecidable manual S 342 24.2535 -0.35 1.15
IV.MOCL.EHZ. 2024-04-02T10:12:21.98 0.3 undecidable manual P 10 46.9197 0.66 1.15
IV.FROS.CHZ. 2024-04-02T10:12:20.31 0.1 undecidable manual P 165 40.9257 0.16 1.83
IV.CSNT.HHZ. 2024-04-02T10:12:20.10 0.3 undecidable manual S 126 21.4674 -0.55 1.15
IV.MPPT.EHZ. 2024-04-02T10:12:20.59 0.3 undecidable manual P 1 40.9257 0.19 1.15
IV.LOCA.HHZ. 2024-04-02T10:12:19.27 0.3 undecidable manual P 154 34.743 -0.18 1.15
IV.OSSC.HHZ. 2024-04-02T10:12:18.81 0.3 undecidable manual S 117 15.4734 0.12 1.15
IV.CRMI.HHZ. 2024-04-02T10:12:17.60 0.1 undecidable manual P 342 24.2535 0.08 1.53
IV.CSNT.HHZ. 2024-04-02T10:12:16.85 0.1 undecidable manual P 126 21.4674 -0.17 1.53
IV.OSSC.HHZ. 2024-04-02T10:12:16.14 0.1 undecidable manual P 117 15.4734 0.22 1.53
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.OSSC.HHN. ML:2.2 0.00143 1.06 AML other m 2024-04-02T10:12:19.73
IV.OSSC.HHE. ML:2.3 0.0017800000000000001 0.8 AML other m 2024-04-02T10:12:19.09
IV.CSNT.HHN. ML:1.8 0.00044500000000000003 0.82 AML other m 2024-04-02T10:12:20.60
IV.CSNT.HHE. ML:1.7 0.00039150000000000003 0.38 AML other m 2024-04-02T10:12:20.36
IV.CRMI.HNN. ML:2.0 0.0006234999999999999 0.28 AML other m 2024-04-02T10:12:21.73
IV.CRMI.HNE. ML:1.9 0.000498 0.3 AML other m 2024-04-02T10:12:21.51
IV.CRMI.HHN. ML:2.0 0.0006645 0.62 AML other m 2024-04-02T10:12:21.73
IV.CRMI.HHE. ML:1.8 0.00035 0.3 AML other m 2024-04-02T10:12:21.51
IV.LOCA.HHN. ML:2.0 0.00044950000000000003 0.78 AML other m 2024-04-02T10:12:25.56
IV.LOCA.HHE. ML:2.0 0.0004305 1.52 AML other m 2024-04-02T10:12:25.19
IV.FROS.CHN. ML:2.2 0.000469 0.72 AML other m 2024-04-02T10:12:26.67
IV.FROS.CHE. ML:2.2 0.0005340000000000001 0.12 AML other m 2024-04-02T10:12:25.92
IV.MPPT.EHN. ML:1.8 0.00020600000000000002 0.54 AML other m 2024-04-02T10:12:26.85
IV.MPPT.EHE. ML:1.9 0.000242 1.46 AML other m 2024-04-02T10:12:27.25
IV.PII.HHN. ML:2.2 0.0004425 0.68 AML other m 2024-04-02T10:12:27.92
IV.PII.HHE. ML:2.0 0.000263 0.42 AML other m 2024-04-02T10:12:29.13
IV.MOCL.EHN. ML:1.8 0.0001825 0.76 AML other m 2024-04-02T10:12:31.62
IV.MOCL.EHE. ML:2.0 0.000296 1.02 AML other m 2024-04-02T10:12:29.14
IV.TRIF.CHN. ML:1.8 0.000142 0.18 AML other m 2024-04-02T10:12:29.84
IV.TRIF.CHE. ML:1.9 0.000189 0.12 AML other m 2024-04-02T10:12:29.51
GU.MAIM.HHN. ML:1.6 0.0000872 1.18 AML other m 2024-04-02T10:12:30.56
GU.MAIM.HHE. ML:1.6 0.0000918 1.44 AML other m 2024-04-02T10:12:32.46
IV.VMGN.HHN. ML:1.5 0.00007955000000000001 0.5 AML other m 2024-04-02T10:12:32.68
IV.VMGN.HHE. ML:1.4 0.000056850000000000006 0.62 AML other m 2024-04-02T10:12:31.92
IV.SEI.HHN. ML:2.3 0.00040649999999999996 1.4 AML other m 2024-04-02T10:12:32.98
IV.SEI.HHE. ML:1.9 0.0001995 0.28 AML other m 2024-04-02T10:12:33.74
IV.BDI.HHN. ML:2.0 0.00019350000000000001 0.98 AML other m 2024-04-02T10:12:35.83
IV.BDI.HHE. ML:1.9 0.00014250000000000002 1.58 AML other m 2024-04-02T10:12:34.99
IV.CRE.HHN. ML:1.8 0.00010800000000000001 0.44 AML other m 2024-04-02T10:12:37.23
IV.CRE.HHE. ML:1.7 0.0000875 1.58 AML other m 2024-04-02T10:12:37.15
IV.LMD.HHN. ML:1.6 0.0000654 1.1 AML other m 2024-04-02T10:12:37.94
IV.LMD.HHE. ML:1.6 0.000056000000000000006 1.36 AML other m 2024-04-02T10:12:36.41
ST.GAGG.HHN. ML:2.8 0.00009865000000000001 1.34 AML other m 2024-04-02T10:13:27.59
ST.GAGG.HHE. ML:3.0 0.0001422 0.32 AML other m 2024-04-02T10:13:12.37
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