Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 19-12-2014 and time 08:37:00 (UTC) in region 6 km NW Greve in Chianti (FI)

A magnitude ML 2.1 earthquake occured in region: 6 km NW Greve in Chianti (FI), on

  • 19-12-2014 08:37:00 (UTC)
  • 19-12-2014 09:37:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6120, 11.2610 at 7 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.

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
Greve in Chianti FI 6 13862 13862
San Casciano in Val di Pesa FI 8 17062 30924
Impruneta FI 8 14615 45539
Tavarnelle Val di Pesa FI 9 7800 53339
Barberino Val d'Elsa FI 11 4386 57725
Montespertoli FI 15 13537 71262
Castellina in Chianti SI 16 2859 74121
Figline e Incisa Valdarno FI 16 23505 97626
Bagno a Ripoli FI 16 25611 123237
Radda in Chianti SI 17 1613 124850
Firenze FI 18 382808 507658
Scandicci FI 18 50609 558267
Poggibonsi SI 18 29196 587463
Certaldo FI 19 16121 603584
Rignano sull'Arno FI 20 8651 612235

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 SE of Prato (191150 inhabitants)
33 Km N of Siena (53903 inhabitants)
45 Km SE of Pistoia (90315 inhabitants)
53 Km W of Arezzo (99543 inhabitants)
66 Km E of Lucca (89046 inhabitants)
70 Km E of Pisa (89158 inhabitants)
77 Km E of Livorno (159219 inhabitants)
86 Km E of Viareggio (62467 inhabitants)
90 Km SW of Faenza (58541 inhabitants)
90 Km SW of Imola (69797 inhabitants)
92 Km SW of Forlì (117913 inhabitants)
95 Km N of Grosseto (82087 inhabitants)
98 Km SW of Cesena (96758 inhabitants)
99 Km S of Bologna (386663 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 2.1 2014-12-19
08:37:00		 43.6115 11.2608 7 2015-01-09
10:55:56		 Bollettino Sismico Italiano INGV 15660091
Reviewed
Rev100 		ML 2.1 2014-12-19
08:37:00		 43.6128 11.2625 7 2014-12-19
08:57:22		 Sala Sismica INGV-Roma 14995471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-12-19 08:37:00 ± 0.06
Latitude 43.6115 ± 0.0036
Longitude 11.2608 ± 0.0050
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 15660091

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 347
Semi-minor axis of confidence ellipse (meter) 326
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 102
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
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) 0.08813
Epicentral distance of station farthest from the epicenter (degree) 1.10527
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 14995471
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-12-19 08:57:20

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 1
Type of magnitude ML
Reference to an origin 15660091
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-01-08 00:37:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PLMA.HHZ. 2014-12-19T08:37:21.26 0.3 undecidable manual P 294 122.6883 50 0.03 62
GU.EQUI.HHZ. 2014-12-19T08:37:19.44 0.3 undecidable manual P 305 107.8143 50 0.5 58
IV.CRE.HHZ. 2014-12-19T08:37:18.70 0.3 undecidable manual S 89 55.5 50 0.17 69
IV.SACS.HHE. 2014-12-19T08:37:17.60 0.6 undecidable manual P 148 99.5226 50 -0.06 43
IV.CASP.HHZ. 2014-12-19T08:37:17.07 0.3 undecidable manual P 200 96.5256 50 -0.12 64
IV.ATPI.EHZ. 2014-12-19T08:37:16.99 0.3 undecidable manual P 101 93.5397 50 0.26 63
IV.ARCI.HHZ. 2014-12-19T08:37:15.35 0.3 undecidable manual P 168 86.0472 50 -0.23 64
IV.ASQU.HHZ. 2014-12-19T08:37:15.90 0.3 undecidable manual S 64 47.1195 50 -0.39 67
IV.PTF.SHE. 2014-12-19T08:37:14.49 0.6 undecidable manual S 338 41.625 50 -0.34 45
IV.PARC.HHZ. 2014-12-19T08:37:14.59 0.6 undecidable manual P 87 78.5658 50 0.15 44
GU.MAIM.HHZ. 2014-12-19T08:37:12.89 0.3 undecidable manual P 299 70.1742 50 -0.25 66
GU.POPM.HHE. 2014-12-19T08:37:12.62 0.3 undecidable manual P 320 62.7927 50 0.62 60
IV.CAFI.HHZ. 2014-12-19T08:37:12.06 0.3 undecidable manual P 119 64.8906 50 -0.26 66
IV.LMD.HHZ. 2014-12-19T08:37:12.19 0.3 undecidable manual P 34 62.7927 50 0.18 68
IV.CRE.HHZ. 2014-12-19T08:37:11.11 0.3 undecidable manual P 89 55.5 50 0.23 68
IV.CRMI.HHZ. 2014-12-19T08:37:11.00 0.3 undecidable manual S 312 30.4473 103 -0.27 71
IV.PII.HHZ. 2014-12-19T08:37:11.39 0.1 negative manual P 282 60.2952 50 -0.23 90
IV.RUFI.EHZ. 2014-12-19T08:37:11.50 0.3 undecidable manual S 38 32.0457 103 -0.32 70
IV.MTCR.EHE. 2014-12-19T08:37:10.12 0.3 undecidable manual P 336 50.616 50 -0.01 72
IV.ASQU.HHZ. 2014-12-19T08:37:09.75 0.3 undecidable manual P 64 47.1195 50 0.17 70
IV.PTF.SHE. 2014-12-19T08:37:08.78 0.6 undecidable manual P 338 41.625 50 0.04 48
IV.CSNT.HHZ. 2014-12-19T08:37:06.10 0.3 undecidable manual S 171 15.5733 115 -0.26 73
IV.RUFI.EHZ. 2014-12-19T08:37:06.90 0.1 positive manual P 38 32.0457 103 -0.1 97
IV.CRMI.HHZ. 2014-12-19T08:37:06.59 0.1 undecidable manual P 312 30.4473 103 -0.09 98
IV.OSSC.HNZ. 2014-12-19T08:37:04.80 0.1 undecidable manual S 187 9.7791 126 0.15 100
IV.FIR.HNZ. 2014-12-19T08:37:04.84 0.3 undecidable manual P 359 18.0708 112 0.52 68
IV.CSNT.HHZ. 2014-12-19T08:37:03.74 0.1 undecidable manual P 171 15.5733 115 -0.11 100
IV.OSSC.HNZ. 2014-12-19T08:37:03.04 0.1 undecidable manual P 187 9.7791 126 0.18 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.OSSC.HNE. ML:2.4 0.0197 0.16 AML other m 2014-12-19T08:37:05.05
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