Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 02-03-2018 and time 05:04:31 (Italy) in region 5 km SW Greve in Chianti (FI)

A magnitude ML 2.0 earthquake occured in region: 5 km SW Greve in Chianti (FI), on

  • 02-03-2018 04:04:31 (UTC)
  • 02-03-2018 05:04:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5530, 11.2790 at 9 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 5 13862 13862
Tavarnelle Val di Pesa FI 9 7800 21662
Barberino Val d'Elsa FI 9 4386 26048
Castellina in Chianti SI 9 2859 28907
Radda in Chianti SI 11 1613 30520
San Casciano in Val di Pesa FI 14 17062 47582
Poggibonsi SI 14 29196 76778
Impruneta FI 15 14615 91393
Gaiole in Chianti SI 16 2758 94151
Cavriglia AR 17 9614 103765
Monteriggioni SI 18 9810 113575
Figline e Incisa Valdarno FI 19 23505 137080
Certaldo FI 19 16121 153201
Montespertoli FI 19 13537 166738
Colle di Val d'Elsa SI 20 21620 188358

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km SE of Scandicci (50609 inhabitants)
24 Km S of Firenze (382808 inhabitants)
26 Km N of Siena (53903 inhabitants)
39 Km SE of Prato (191150 inhabitants)
50 Km W of Arezzo (99543 inhabitants)
51 Km SE of Pistoia (90315 inhabitants)
70 Km E of Lucca (89046 inhabitants)
73 Km E of Pisa (89158 inhabitants)
78 Km E of Livorno (159219 inhabitants)
89 Km N of Grosseto (82087 inhabitants)
90 Km E of Viareggio (62467 inhabitants)
95 Km SW of Faenza (58541 inhabitants)
96 Km SW of Imola (69797 inhabitants)
96 Km SW of Forlì (117913 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 2.0 2018-03-02
04:04:31		 43.5527 11.2793 9 2019-04-24
14:49:40		 Bollettino Sismico Italiano INGV 58878801
Reviewed
Rev100 		ML 2.0 2018-03-02
04:04:31		 43.5465 11.2697 9 2018-03-02
04:15:56		 Sala Sismica INGV-Roma 54256181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-03-02 04:04:31 ± 0.05
Latitude 43.5527 ± 0.0027
Longitude 11.2793 ± 0.0050
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 58878801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 389
Semi-minor axis of confidence ellipse (meter) 249
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 253
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 52
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 40
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.89393
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 58878801
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-08-27 07:40:13

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 54256181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-03-02 04:15:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MODR.HHZ. 2018-03-02T04:06:11.53 3.0 undecidable manual Sg 10.91 0
IV.SAMA.HHZ. 2018-03-02T04:05:35.26 3.0 undecidable manual Sg 0.63 0
IV.SAMA.HHZ. 2018-03-02T04:05:08.89 3.0 positive manual Pg 2.16 0
IV.FNVD.HHZ. 2018-03-02T04:04:52.91 0.6 undecidable manual S 350 69.375 50 0.33 42
IV.LMD.HHZ. 2018-03-02T04:04:51.88 0.6 undecidable manual S 30 67.5768 50 -0.21 43
IV.PII.HHZ. 2018-03-02T04:04:50.33 0.6 undecidable manual S 287 63.3921 50 -0.66 39
IV.CAFI.HHZ. 2018-03-02T04:04:50.00 0.3 undecidable manual S 114 60.5949 50 -0.24 66
IV.SEI.HHZ. 2018-03-02T04:04:49.10 0.6 undecidable manual S 6 55.9995 50 0.09 45
IV.SACS.HHE. 2018-03-02T04:04:47.35 1.0 undecidable manual P 147 93.24 50 0.17 21
IV.MGAB.HHZ. 2018-03-02T04:04:47.94 0.6 undecidable manual P 136 97.8243 50 0.05 42
GU.SARM.EHZ. 2018-03-02T04:04:47.80 1.0 undecidable manual P 315 99.2229 50 -0.3 20
IV.MOCL.EHZ. 2018-03-02T04:04:47.59 0.6 undecidable manual S 351 50.8158 50 -0.03 46
IV.CASP.HHE. 2018-03-02T04:04:47.19 0.6 undecidable manual P 202 90.9423 50 0.37 40
TV.SF01.EHZ. 2018-03-02T04:04:46.22 0.6 undecidable manual P 164 85.3479 50 0.26 41
IV.MPPT.EHZ. 2018-03-02T04:04:46.64 0.3 undecidable manual S 341 47.4192 50 -0.07 69
GU.CARD.HHZ. 2018-03-02T04:04:45.78 0.6 undecidable manual P 310 82.6506 50 0.23 42
IV.PARC.HHZ. 2018-03-02T04:04:45.07 0.6 undecidable manual P 82 77.7666 50 0.27 42
IV.BDI.HHZ. 2018-03-02T04:04:45.29 0.3 undecidable manual P 316 78.7656 50 0.34 62
IV.FROS.HHZ. 2018-03-02T04:04:44.19 0.3 undecidable manual S 195 39.3273 50 -0.36 66
IV.ARCI.HHZ. 2018-03-02T04:04:44.99 0.6 undecidable manual P 168 79.365 50 -0.05 44
GU.MAIM.HHZ. 2018-03-02T04:04:44.54 0.3 undecidable manual P 303 74.7696 50 0.2 64
IV.RUFI.EHZ. 2018-03-02T04:04:43.43 0.3 undecidable manual S 30 36.6411 50 -0.41 66
IV.FNVD.HHZ. 2018-03-02T04:04:43.74 0.3 undecidable manual P 350 69.375 50 0.23 64
IV.RIBO.EHZ. 2018-03-02T04:04:43.68 0.3 undecidable manual P 196 69.5748 50 0.15 66
GU.POPM.HHZ. 2018-03-02T04:04:43.76 0.3 undecidable manual P 323 68.7756 50 0.34 63
IV.LMD.HHZ. 2018-03-02T04:04:43.26 0.6 undecidable manual P 30 67.5768 50 0.04 45
IV.SSP9.EHZ. 2018-03-02T04:04:43.77 0.6 undecidable manual P 88 68.4759 50 0.4 42
IV.CAFI.HHZ. 2018-03-02T04:04:42.46 0.3 undecidable manual P 114 60.5949 50 0.31 65
IV.PII.HHZ. 2018-03-02T04:04:42.51 0.3 undecidable manual P 287 63.3921 50 -0.08 67
IV.MAGO.HHZ. 2018-03-02T04:04:42.10 0.6 undecidable manual P 238 58.8966 50 0.21 44
IV.SEI.HHZ. 2018-03-02T04:04:41.59 0.3 undecidable manual P 6 55.9995 50 0.15 67
IV.CRE.HHZ. 2018-03-02T04:04:41.02 1.0 undecidable manual P 82 54.501 50 -0.19 22
IV.MTCR.EHZ. 2018-03-02T04:04:41.60 0.6 undecidable manual P 337 57.1983 50 -0.03 46
IV.TRIF.HHZ. 2018-03-02T04:04:41.53 0.6 undecidable manual P 212 57.2982 50 -0.11 45
IV.MOCL.EHZ. 2018-03-02T04:04:40.42 0.3 undecidable manual P 351 50.8158 50 -0.22 67
IV.MPPT.EHZ. 2018-03-02T04:04:39.81 0.3 undecidable manual P 341 47.4192 50 -0.31 66
IV.RUFI.EHZ. 2018-03-02T04:04:38.25 0.1 positive manual P 30 36.6411 50 -0.21 92
IV.FROS.HHZ. 2018-03-02T04:04:38.79 0.3 undecidable manual P 195 39.3273 50 -0.08 70
IV.FIR.HNZ. 2018-03-02T04:04:36.32 0.3 undecidable manual P 355 24.6531 110 -0.04 73
IV.CSNT.HHZ. 2018-03-02T04:04:35.28 0.3 undecidable manual S 174 8.88 135 -0.17 73
IV.OSSC.HHZ. 2018-03-02T04:04:34.29 0.3 undecidable manual S 220 4.1958 155 -0.22 73
IV.CSNT.HHZ. 2018-03-02T04:04:33.69 0.1 positive manual P 174 8.88 135 0.07 99
IV.OSSC.HHZ. 2018-03-02T04:04:33.14 0.1 undecidable manual P 220 4.1958 155 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSNT.HHN. ML:2.2 0.0025549999999999995 0.46 AML other m 2018-03-02T04:04:35.88
IV.CSNT.HHE. ML:2.1 0.001875 0.98 AML other m 2018-03-02T04:04:36.67
IV.RUFI.EHN. ML:2.1 0.00045 0.58 AML other m 2018-03-02T04:04:43.91
IV.RUFI.EHE. ML:2.2 0.000606 0.2 AML other m 2018-03-02T04:04:43.92
IV.FROS.HHE. ML:2.4 0.001009 0.24 AML other m 2018-03-02T04:04:44.68
IV.FROS.HHN. ML:2.2 0.0005529999999999999 0.32 AML other m 2018-03-02T04:04:44.74
IV.MPPT.EHE. ML:1.8 0.00018449999999999999 0.42 AML other m 2018-03-02T04:04:46.73
IV.MPPT.EHN. ML:1.9 0.00020500000000000002 0.38 AML other m 2018-03-02T04:04:47.97
IV.MOCL.EHE. ML:2.2 0.000381 0.84 AML other m 2018-03-02T04:04:48.39
IV.MOCL.EHN. ML:2.2 0.000393 1.82 AML other m 2018-03-02T04:04:48.02
IV.SEI.HHN. ML:2.2 0.0004025 0.24 AML other m 2018-03-02T04:04:50.13
IV.SEI.HHE. ML:2.1 0.000275 0.2 AML other m 2018-03-02T04:04:50.14
IV.CAFI.HHE. ML:1.5 0.00006725000000000001 0.64 AML other m 2018-03-02T04:04:50.53
IV.MAGO.HHE. ML:2.1 0.000245 0.48 AML other m 2018-03-02T04:04:51.55
IV.MTCR.EHN. ML:1.8 0.0001505 0.54 AML other m 2018-03-02T04:04:52.29
IV.CAFI.HHN. ML:1.6 0.00009095 1.58 AML other m 2018-03-02T04:04:52.12
IV.LMD.HHN. ML:2.1 0.00021349999999999999 0.9 AML other m 2018-03-02T04:04:53.44
IV.MTCR.EHE. ML:1.8 0.0001555 0.94 AML other m 2018-03-02T04:04:53.36
IV.LMD.HHE. ML:2.1 0.00023649999999999998 1.04 AML other m 2018-03-02T04:04:54.55
IV.MAGO.HHN. ML:2.0 0.00020400000000000003 0.42 AML other m 2018-03-02T04:04:54.54
GU.POPM.HHE. ML:1.9 0.00012735 0.54 AML other m 2018-03-02T04:04:54.82
GU.POPM.HHN. ML:2.0 0.00015849999999999998 0.68 AML other m 2018-03-02T04:04:54.86
IV.BDI.HHE. ML:1.8 0.00010145 1.08 AML other m 2018-03-02T04:04:58.71
IV.BDI.HHN. ML:2.0 0.000131 1.44 AML other m 2018-03-02T04:04:59.00
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