Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 29-06-2019 and time 01:42:55 (Italy) in region 2 km NW Colle di Val d'Elsa (SI)

A magnitude ML 1.7 earthquake occured in region: 2 km NW Colle di Val d'Elsa (SI), on

  • 28-06-2019 23:42:55 (UTC)
  • 29-06-2019 01:42:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4340, 11.1000 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.

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
Colle di Val d'Elsa SI 2 21620 21620
Poggibonsi SI 5 29196 50816
San Gimignano SI 6 7820 58636
Monteriggioni SI 11 9810 68446
Casole d'Elsa SI 11 3897 72343
Barberino Val d'Elsa FI 13 4386 76729
Certaldo FI 14 16121 92850
Tavarnelle Val di Pesa FI 15 7800 100650
Castellina in Chianti SI 16 2859 103509
Gambassi Terme FI 17 4870 108379
Volterra PI 20 10519 118898
Radicondoli SI 20 914 119812
Sovicille SI 20 10116 129928

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NW of Siena (53903 inhabitants)
37 Km S of Scandicci (50609 inhabitants)
40 Km SW of Firenze (382808 inhabitants)
50 Km S of Prato (191150 inhabitants)
58 Km S of Pistoia (90315 inhabitants)
63 Km W of Arezzo (99543 inhabitants)
64 Km E of Pisa (89158 inhabitants)
65 Km E of Livorno (159219 inhabitants)
66 Km SE of Lucca (89046 inhabitants)
75 Km N of Grosseto (82087 inhabitants)
84 Km SE of Viareggio (62467 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 1.7 2019-06-28
23:42:55		 43.4338 11.1 8 2019-11-13
14:30:56		 Bollettino Sismico Italiano INGV 70795861
Reviewed
Rev100 		ML 1.8 2019-06-28
23:42:56		 43.4332 11.102 8 2019-06-28
23:50:59		 Sala Sismica INGV-Roma 70014291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-06-28 23:42:55 ± 0.1
Latitude 43.4338 ± 0.0036
Longitude 11.1000 ± 0.0062
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 70795861

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 472
Semi-minor axis of confidence ellipse (meter) 340
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 115
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 66
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.85256
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 34
Type of magnitude ML
Reference to an origin 70795861
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-07-22 13:28:47

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 23
Type of magnitude ML
Reference to an origin 70014291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-06-28 23:50:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
RF.GEPF.HHZ. 2019-06-28T23:44:30.59 3.0 undecidable manual Sg 20.51 0
IV.PTRJ.HNZ. 2019-06-28T23:44:27.13 3.0 undecidable manual Sn -4.49 0
IV.MILZ.HHZ. 2019-06-28T23:44:23.86 3.0 negative manual Pn 1.31 0
IV.GIUL.HHZ. 2019-06-28T23:44:23.73 3.0 undecidable manual Sg 12.36 0
IV.CET2.HHZ. 2019-06-28T23:44:17.43 3.0 undecidable manual Pn 3.87 0
IV.LAV9.HHZ. 2019-06-28T23:44:07.23 3.0 undecidable manual Sg 4.67 0
IV.CMPR.HHZ. 2019-06-28T23:43:57.53 3.0 undecidable manual Pn -3.44 0
IV.MCRV.HHZ. 2019-06-28T23:43:49.00 3.0 undecidable manual Pn -6.56 0
IT.VNF1.HGZ. 2019-06-28T23:43:45.88 3.0 negative manual Pg 5.33 0
IV.PTRJ.HNZ. 2019-06-28T23:43:41.57 3.0 undecidable manual Pn -3.76 0
MN.TRI.HHZ. 2019-06-28T23:43:39.76 3.0 negative manual Pg 7.23 0
CH.BERNI.HHZ. 2019-06-28T23:43:32.97 3.0 positive manual Pg 8.11 0
IV.ARRO.EHZ. 2019-06-28T23:43:26.52 3.0 positive manual Pg 5.59 0
IV.PARC.HHZ. 2019-06-28T23:43:24.27 0.3 undecidable manual S 75 94.6386 50 -0.02 66
IV.LMD.HHZ. 2019-06-28T23:43:22.20 0.6 undecidable manual S 34 86.3469 50 0.1 44
IV.SSP9.EHZ. 2019-06-28T23:43:21.14 0.3 undecidable manual S 79 84.4488 50 -0.43 62
IV.BDI.HHZ. 2019-06-28T23:43:20.76 0.6 undecidable manual S 330 80.6637 50 0.2 43
IV.SBPO.HNZ. 2019-06-28T23:43:20.65 3.0 undecidable manual Sn -3.88 0
GU.POPM.HHZ. 2019-06-28T23:43:18.71 0.6 undecidable manual S 338 73.1712 50 0.14 45
IV.CASP.HHZ. 2019-06-28T23:43:18.33 0.3 undecidable manual S 195 73.8705 50 -0.42 63
IV.CRE.HHZ. 2019-06-28T23:43:17.93 0.3 undecidable manual S 73 71.4729 50 -0.2 66
IV.MOCL.EHZ. 2019-06-28T23:43:15.62 0.3 undecidable manual S 6 63.6918 50 -0.42 64
IV.MPPT.EHZ. 2019-06-28T23:43:14.34 0.3 undecidable manual S 359 58.0974 50 -0.2 68
IV.RUFI.EHZ. 2019-06-28T23:43:13.46 0.6 undecidable manual S 36 55.5999 50 -0.42 43
IV.PII.HHZ. 2019-06-28T23:43:13.15 0.3 undecidable manual S 305 56.1993 50 -0.89 55
IV.RIBO.EHZ.01 2019-06-28T23:43:13.27 0.3 undecidable manual S 185 54.0015 50 -0.17 69
IV.PARC.HHZ. 2019-06-28T23:43:12.79 0.1 undecidable manual P 75 94.6386 50 0.5 79
IV.LMD.HHZ. 2019-06-28T23:43:11.27 0.3 undecidable manual P 34 86.3469 50 0.24 64
IV.SSP9.EHZ. 2019-06-28T23:43:11.34 0.3 undecidable manual P 79 84.4488 50 0.62 58
TV.SF04.EHZ. 2019-06-28T23:43:10.13 0.3 undecidable manual P 145 80.364 50 0.03 67
IV.BDI.HHZ. 2019-06-28T23:43:10.45 0.3 undecidable manual P 330 80.6637 50 0.31 64
IV.SFI.EHZ. 2019-06-28T23:43:10.05 0.3 undecidable manual P 49 79.4649 50 0.08 67
IV.CASP.HHZ. 2019-06-28T23:43:09.62 0.3 undecidable manual P 195 73.8705 50 0.52 61
IV.CRE.HHZ. 2019-06-28T23:43:09.16 0.3 undecidable manual P 73 71.4729 50 0.42 63
GU.POPM.HHZ. 2019-06-28T23:43:09.49 0.3 undecidable manual P 338 73.1712 50 0.5 62
IV.MAGO.CHZ. 2019-06-28T23:43:08.94 0.3 undecidable manual S 244 39.8268 50 -0.74 60
IV.MOCL.EHZ. 2019-06-28T23:43:08.08 0.3 undecidable manual P 6 63.6918 50 0.55 62
IV.EUCT.HNZ. 2019-06-28T23:43:08.87 3.0 negative manual Pn -2.48 0
IV.RIBO.EHZ.01 2019-06-28T23:43:06.70 0.1 undecidable manual P 185 54.0015 50 0.67 80
IV.MPPT.EHZ. 2019-06-28T23:43:06.61 0.3 undecidable manual P 359 58.0974 50 -0.06 70
IV.RUFI.EHZ. 2019-06-28T23:43:06.09 0.1 undecidable manual P 36 55.5999 50 -0.19 91
IV.PII.HHZ. 2019-06-28T23:43:06.53 0.1 undecidable manual P 305 56.1993 50 0.16 92
IV.FROS.CHZ. 2019-06-28T23:43:04.80 0.3 undecidable manual S 170 25.2525 108 -0.31 70
IV.TRIF.CHZ. 2019-06-28T23:43:03.50 0.1 undecidable manual P 204 38.8278 50 -0.2 94
IV.MAGO.CHZ. 2019-06-28T23:43:03.96 0.1 undecidable manual P 244 39.8268 50 0.1 96
IV.FROS.CHZ. 2019-06-28T23:43:01.31 0.1 undecidable manual P 170 25.2525 108 0.09 98
IV.CSNT.HHZ. 2019-06-28T23:43:01.50 0.3 undecidable manual S 74 15.873 117 -0.59 66
IV.OSSC.HHZ. 2019-06-28T23:43:01.68 0.3 undecidable manual S 50 15.3735 118 -0.25 73
IV.CSNT.HHZ. 2019-06-28T23:42:59.39 0.1 undecidable manual P 74 15.873 117 -0.09 100
IV.OSSC.HHZ. 2019-06-28T23:42:59.48 0.1 undecidable manual P 50 15.3735 118 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSNT.HHE. ML:1.9 0.000818 0.22 AML other m 2019-06-28T23:43:01.74
IV.OSSC.HHE. ML:2.0 0.000995 1.5 AML other m 2019-06-28T23:43:01.11
IV.CSNT.HHN. ML:2.1 0.0013735 0.42 AML other m 2019-06-28T23:43:01.66
IV.OSSC.HNN. ML:2.0 0.0009445 1.5 AML other m 2019-06-28T23:43:02.11
IV.OSSC.HHN. ML:1.8 0.0007304999999999999 0.76 AML other m 2019-06-28T23:43:02.89
IV.OSSC.HNE. ML:1.9 0.0007475 0.74 AML other m 2019-06-28T23:43:02.89
IV.FROS.CHE. ML:2.1 0.0007835 0.24 AML other m 2019-06-28T23:43:05.09
IV.FROS.CHN. ML:2.0 0.0005740000000000001 0.22 AML other m 2019-06-28T23:43:05.10
IV.MAGO.CHN. ML:2.1 0.000475 0.14 AML other m 2019-06-28T23:43:09.70
IV.MAGO.CHE. ML:2.0 0.0003285 1.84 AML other m 2019-06-28T23:43:10.07
IV.RUFI.EHN. ML:1.6 0.0000957 0.2 AML other m 2019-06-28T23:43:14.33
IV.PII.HHN. ML:1.9 0.0001915 0.36 AML other m 2019-06-28T23:43:14.18
IV.RUFI.EHE. ML:1.7 0.0001248 0.7 AML other m 2019-06-28T23:43:14.33
IV.PII.HHE. ML:2.0 0.0002185 1.68 AML other m 2019-06-28T23:43:14.97
IV.MPPT.EHE. ML:1.8 0.000129 0.44 AML other m 2019-06-28T23:43:15.32
IV.MPPT.EHN. ML:1.5 0.0000755 1.82 AML other m 2019-06-28T23:43:15.91
IV.MOCL.EHE. ML:1.6 0.0000739 0.52 AML other m 2019-06-28T23:43:18.56
IV.CRE.HHN. ML:1.8 0.000093 0.28 AML other m 2019-06-28T23:43:19.27
IV.CASP.HHN. ML:1.8 0.000107 0.74 AML other m 2019-06-28T23:43:19.37
IV.CASP.HHE. ML:1.7 0.000079 0.38 AML other m 2019-06-28T23:43:19.39
IV.CRE.HHE. ML:1.6 0.000064 0.42 AML other m 2019-06-28T23:43:19.92
IV.MOCL.EHN. ML:1.9 0.00014150000000000002 1.12 AML other m 2019-06-28T23:43:19.79
GU.POPM.HHN. ML:1.6 0.00006870000000000002 0.3 AML other m 2019-06-28T23:43:20.60
IV.SFI.EHE. ML:1.5 0.00004675 0.6 AML other m 2019-06-28T23:43:21.00
GU.POPM.HHE. ML:1.7 0.00008060000000000001 0.58 AML other m 2019-06-28T23:43:21.65
IV.SSP9.EHE. ML:1.6 0.000047170000000000004 0.54 AML other m 2019-06-28T23:43:21.79
IV.SSP9.EHN. ML:1.6 0.0000496 1.42 AML other m 2019-06-28T23:43:22.77
IV.BDI.HHE. ML:1.4 0.000034750000000000004 0.8 AML other m 2019-06-28T23:43:22.92
IV.BDI.HHN. ML:1.5 0.000044 0.32 AML other m 2019-06-28T23:43:22.43
IV.LMD.HHN. ML:1.7 0.00006215 0.24 AML other m 2019-06-28T23:43:23.29
IV.SFI.EHN. ML:1.4 0.00003315 0.66 AML other m 2019-06-28T23:43:23.91
IV.LMD.HHE. ML:1.6 0.00004385 0.46 AML other m 2019-06-28T23:43:26.30
IV.PARC.HHN. ML:1.5 0.000033100000000000005 1.38 AML other m 2019-06-28T23:43:26.72
IV.PARC.HHE. ML:1.4 0.000026050000000000003 0.82 AML other m 2019-06-28T23:43:32.59
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