Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 19-12-2014 and time 23:31:33 (UTC) in region 6 km W Greve in Chianti (FI)

A magnitude ML 2.3 earthquake occured in region: 6 km W Greve in Chianti (FI), on

  • 19-12-2014 23:31:33 (UTC)
  • 20-12-2014 00:31:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6060, 11.2500 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
Greve in Chianti FI 6 13862 13862
San Casciano in Val di Pesa FI 8 17062 30924
Tavarnelle Val di Pesa FI 8 7800 38724
Impruneta FI 9 14615 53339
Barberino Val d'Elsa FI 9 4386 57725
Montespertoli FI 15 13537 71262
Castellina in Chianti SI 15 2859 74121
Radda in Chianti SI 17 1613 75734
Bagno a Ripoli FI 17 25611 101345
Figline e Incisa Valdarno FI 17 23505 124850
Poggibonsi SI 18 29196 154046
Scandicci FI 18 50609 204655
Certaldo FI 18 16121 220776
Firenze FI 18 382808 603584

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km SE of Scandicci (50609 inhabitants)
18 Km S of Firenze (382808 inhabitants)
33 Km N of Siena (53903 inhabitants)
33 Km SE of Prato (191150 inhabitants)
45 Km SE of Pistoia (90315 inhabitants)
53 Km W of Arezzo (99543 inhabitants)
66 Km E of Lucca (89046 inhabitants)
69 Km E of Pisa (89158 inhabitants)
76 Km E of Livorno (159219 inhabitants)
85 Km E of Viareggio (62467 inhabitants)
91 Km SW of Faenza (58541 inhabitants)
91 Km SW of Imola (69797 inhabitants)
94 Km SW of Forlì (117913 inhabitants)
95 Km N of Grosseto (82087 inhabitants)
99 Km S of Bologna (386663 inhabitants)
99 Km SW of Cesena (96758 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 2.3 2014-12-19
23:31:33		 43.6063 11.2497 8 2015-09-21
09:40:11		 Bollettino Sismico Italiano INGV 16452671
Reviewed
Rev100 		ML 2.3 2014-12-19
23:31:33		 43.6073 11.2607 7 2014-12-19
23:40:24		 Sala Sismica INGV-Roma 15043411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-12-19 23:31:33 ± 0.05
Latitude 43.6063 ± 0.0027
Longitude 11.2497 ± 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 16452671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 261
Semi-minor axis of confidence ellipse (meter) 235
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 124
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.09358
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 21
Type of magnitude ML
Reference to an origin 16452671
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-01-09 13:22:35

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 21
Type of magnitude ML
Reference to an origin 15043411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-12-19 23:40:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PAOL.HHZ. 2014-12-19T23:33:27.99 3.0 undecidable manual Sg 16.41 0
MN.TRI.BHZ. 2014-12-19T23:32:52.99 3.0 undecidable manual Sn 0.01 0
IV.MA9.HHZ. 2014-12-19T23:32:39.99 3.0 undecidable manual Sg 3.79 0
CH.MUGIO.HHZ. 2014-12-19T23:32:16.57 3.0 undecidable manual Pn -1.58 0
IV.PP3.EHZ. 2014-12-19T23:32:05.91 3.0 positive manual Pn 2.56 0
IV.CASP.HHZ. 2014-12-19T23:32:02.49 0.3 undecidable manual S 199 95.6376 50 0.12 64
IV.MSSA.HHZ. 2014-12-19T23:31:59.46 3.0 undecidable manual P 0.04 0
IV.SSP9.EHZ. 2014-12-19T23:31:55.49 0.1 undecidable manual S 93 70.9734 50 -0.28 87
IV.ATCC.EHZ. 2014-12-19T23:31:54.36 0.1 undecidable manual P 112 121.3896 50 0.17 80
IV.CAFI.HHZ. 2014-12-19T23:31:54.17 0.1 undecidable manual S 118 65.3901 50 -0.11 91
IV.PLMA.HHZ. 2014-12-19T23:31:54.55 3.0 negative manual P -0.26 0
IV.LMD.HHZ. 2014-12-19T23:31:54.05 0.1 undecidable manual S 35 63.7917 50 0.18 89
IV.SFI.EHZ. 2014-12-19T23:31:52.58 0.1 undecidable manual S 55 58.1973 50 0.21 90
IV.CRE.HHZ. 2014-12-19T23:31:51.96 0.1 undecidable manual S 88 56.3991 50 0.07 93
IV.CASP.HHZ. 2014-12-19T23:31:50.14 0.1 undecidable manual P 199 95.6376 50 -0.08 86
IV.ARCI.HHZ. 2014-12-19T23:31:48.57 0.1 negative manual P 168 85.6476 50 -0.11 87
IV.BADI.EHZ. 2014-12-19T23:31:48.17 0.1 negative manual P 97 80.6637 50 0.26 85
IV.ATMI.HHZ. 2014-12-19T23:31:48.99 0.1 undecidable manual P 110 87.3459 50 0.05 88
IV.BDI.HHZ. 2014-12-19T23:31:47.17 0.1 undecidable manual P 314 72.6717 50 0.49 82
IV.PTF.SHZ. 2014-12-19T23:31:47.78 0.6 undecidable manual S 340 41.8248 50 -0.22 46
IV.PARC.HHZ. 2014-12-19T23:31:47.68 0.1 undecidable manual P 86 79.5648 50 -0.06 89
GU.MAIM.HHZ. 2014-12-19T23:31:46.32 0.1 undecidable manual P 300 69.6747 50 0.1 90
IV.SSP9.EHZ. 2014-12-19T23:31:46.14 0.1 undecidable manual P 93 70.9734 50 -0.27 87
IV.LMD.HHZ. 2014-12-19T23:31:45.45 0.1 undecidable manual P 35 63.7917 50 0.14 90
GU.POPM.HHZ. 2014-12-19T23:31:45.38 0.1 undecidable manual P 321 62.5929 50 0.25 88
IV.CAFI.HHZ. 2014-12-19T23:31:45.35 0.1 undecidable manual P 118 65.3901 50 -0.2 89
IV.RUFI.EHZ. 2014-12-19T23:31:45.64 0.3 undecidable manual S 39 33.0447 103 0.22 70
IV.CRE.HHZ. 2014-12-19T23:31:44.13 0.1 undecidable manual P 88 56.3991 50 -0.04 93
IV.PII.HHZ. 2014-12-19T23:31:44.45 0.1 negative manual P 283 59.496 50 -0.2 90
IV.CRMI.HHZ. 2014-12-19T23:31:44.10 0.6 undecidable manual S 314 30.1476 104 -0.34 46
IV.SFI.EHZ. 2014-12-19T23:31:44.51 0.6 negative manual P 55 58.1973 50 0.06 46
IV.MTCR.EHZ. 2014-12-19T23:31:43.11 1.0 undecidable manual P 337 50.8158 50 -0.2 23
IV.ASQU.HHZ. 2014-12-19T23:31:42.71 0.6 positive manual P 64 48.1185 50 -0.19 46
IV.PTF.SHZ. 2014-12-19T23:31:41.62 0.3 positive manual P 340 41.8248 50 -0.31 68
IV.RUFI.EHZ. 2014-12-19T23:31:40.13 0.1 positive manual P 39 33.0447 103 -0.31 92
IV.CRMI.HHZ. 2014-12-19T23:31:39.81 0.1 positive manual P 314 30.1476 104 -0.06 98
IV.CSNT.HHZ. 2014-12-19T23:31:39.84 0.3 undecidable manual S 168 15.1737 117 0.31 71
IV.OSSC.HNZ. 2014-12-19T23:31:37.86 0.6 undecidable manual S 182 9.1797 130 0.06 51
IV.OSSC.HNZ. 2014-12-19T23:31:36.16 0.1 positive manual P 182 9.1797 130 0.12 100
IV.CSNT.HHZ. 2014-12-19T23:31:36.87 0.1 positive manual P 168 15.1737 117 -0.17 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARCI.HHN. ML:2.3 0.00023799999999999998 0.24 AML other m 2014-12-19T23:32:01.83
IV.ARCI.HHE. ML:2.1 0.0001525 0.58 AML other m 2014-12-19T23:32:02.13
IV.ASQU.HHN. ML:2.6 0.0011245 0.82 AML other m 2014-12-19T23:31:49.59
IV.ASQU.HHE. ML:2.8 0.0016549999999999998 0.68 AML other m 2014-12-19T23:31:49.57
IV.ATCC.EHE. ML:2.2 0.000125 1.02 AML other m 2014-12-19T23:32:15.95
IV.ATCC.EHN. ML:2.1 0.00009025000000000001 0.36 AML other m 2014-12-19T23:32:16.55
IV.ATMI.HHN. ML:2.4 0.00029049999999999996 0.66 AML other m 2014-12-19T23:32:08.13
IV.ATMI.HHE. ML:2.3 0.0002235 0.5 AML other m 2014-12-19T23:32:12.47
IV.ATVO.HHN. ML:2.0 0.00009709999999999999 1.22 AML other m 2014-12-19T23:32:10.45
IV.ATVO.HHE. ML:2.2 0.0001635 0.48 AML other m 2014-12-19T23:32:06.60
IV.BADI.EHN. ML:2.0 0.00014185 0.96 AML other m 2014-12-19T23:32:00.04
IV.BADI.EHE. ML:2.2 0.0002135 0.54 AML other m 2014-12-19T23:32:01.52
IV.BDI.HNN. ML:2.1 0.00021250000000000002 0.28 AML other m 2014-12-19T23:32:00.27
IV.BDI.HHN. ML:2.2 0.0002715 0.24 AML other m 2014-12-19T23:32:00.16
IV.BDI.HNE. ML:2.3 0.000316 0.32 AML other m 2014-12-19T23:32:00.01
IV.BDI.HHE. ML:2.3 0.000294 0.52 AML other m 2014-12-19T23:31:59.39
IV.CAFI.HHE. ML:1.9 0.000136 0.8 AML other m 2014-12-19T23:31:54.47
IV.CAFI.HHN. ML:1.9 0.0001395 1.36 AML other m 2014-12-19T23:31:54.51
IV.CASP.HHE. ML:2.2 0.000156 0.64 AML other m 2014-12-19T23:32:02.22
IV.CASP.HHN. ML:2.0 0.0001033 1.04 AML other m 2014-12-19T23:32:02.58
IV.CRE.HHE. ML:2.1 0.0002565 0.22 AML other m 2014-12-19T23:31:52.29
IV.CRE.HHN. ML:2.4 0.0005355 1.2 AML other m 2014-12-19T23:31:52.32
IV.CRMI.HNE. ML:2.3 0.0010400000000000001 0.56 AML other m 2014-12-19T23:31:45.25
IV.CRMI.HHE. ML:2.0 0.000435 0.56 AML other m 2014-12-19T23:31:45.25
IV.CRMI.HNN. ML:2.3 0.0010375 0.34 AML other m 2014-12-19T23:31:44.79
IV.CRMI.HHN. ML:2.0 0.00043 0.32 AML other m 2014-12-19T23:31:44.79
IV.CSNT.HHE. ML:2.7 0.004849999999999999 0.7 AML other m 2014-12-19T23:31:39.64
IV.CSNT.HHN. ML:2.7 0.005019999999999999 0.2 AML other m 2014-12-19T23:31:39.75
IV.LMD.HHE. ML:2.4 0.00051 0.26 AML other m 2014-12-19T23:31:54.38
IV.LMD.HHN. ML:2.5 0.000588 0.22 AML other m 2014-12-19T23:31:54.49
GU.MAIM.HHN. ML:1.9 0.00014099999999999998 0.48 AML other m 2014-12-19T23:32:00.26
GU.MAIM.HHE. ML:1.8 0.0001037 0.72 AML other m 2014-12-19T23:31:58.38
IV.OSSC.HHN. ML:3.1 0.01975 0.14 AML other m 2014-12-19T23:31:38.08
IV.OSSC.HNE. ML:3.1 0.01945 0.14 AML other m 2014-12-19T23:31:38.08
IV.OSSC.HHE. ML:3.2 0.022850000000000002 0.16 AML other m 2014-12-19T23:31:38.05
IV.OSSC.HNN. ML:3.2 0.02225 0.16 AML other m 2014-12-19T23:31:38.05
IV.PARC.HHE. ML:1.9 0.00011099999999999999 0.9 AML other m 2014-12-19T23:31:58.89
IV.PARC.HHN. ML:2.1 0.000184 0.82 AML other m 2014-12-19T23:31:58.76
IV.PII.HHN. ML:2.2 0.000364 0.2 AML other m 2014-12-19T23:31:52.81
IV.PII.HHE. ML:2.5 0.0006045 0.32 AML other m 2014-12-19T23:31:54.55
IV.PLMA.HHE. ML:1.8 0.000045 0.88 AML other m 2014-12-19T23:32:12.08
IV.PLMA.HHN. ML:1.9 0.000054499999999999997 1.18 AML other m 2014-12-19T23:32:13.00
GU.POPM.HHN. ML:2.4 0.0005245 1.54 AML other m 2014-12-19T23:31:55.48
GU.POPM.HHE. ML:2.3 0.00040500000000000003 0.24 AML other m 2014-12-19T23:31:55.01
IV.RUFI.EHN. ML:2.4 0.001131 0.2 AML other m 2014-12-19T23:31:45.34
IV.RUFI.EHE. ML:2.8 0.0029249999999999996 0.2 AML other m 2014-12-19T23:31:45.46
IV.SFI.HNE. ML:2.7 0.0010915 0.5 AML other m 2014-12-19T23:31:52.75
IV.SFI.HNN. ML:2.6 0.00089 0.36 AML other m 2014-12-19T23:31:52.52
IV.SFI.EHN. ML:2.4 0.0006465 1 AML other m 2014-12-19T23:31:53.02
IV.SFI.EHE. ML:2.8 0.0013 0.46 AML other m 2014-12-19T23:31:52.75
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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