Earthquake with magnitude of ML 1.0 on date 06-08-2019 and time 13:12:31 (Italy) in region 2 km E Colle di Val d'Elsa (SI)

A magnitude ML 1.0 earthquake occured in region: 2 km E Colle di Val d'Elsa (SI), on

  • 06-08-2019 11:12:31 (UTC)
  • 06-08-2019 13:12:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4280, 11.1480 at 11 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.

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 3 21620 21620
Poggibonsi SI 5 29196 50816
Monteriggioni SI 7 9810 60626
San Gimignano SI 10 7820 68446
Castellina in Chianti SI 12 2859 71305
Casole d'Elsa SI 13 3897 75202
Barberino Val d'Elsa FI 13 4386 79588
Tavarnelle Val di Pesa FI 15 7800 87388
Certaldo FI 16 16121 103509
Sovicille SI 18 10116 113625
Siena SI 19 53903 167528
Radda in Chianti SI 20 1613 169141

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NW of Siena (53903 inhabitants)
37 Km S of Scandicci (50609 inhabitants)
39 Km S of Firenze (382808 inhabitants)
51 Km S of Prato (191150 inhabitants)
59 Km SE of Pistoia (90315 inhabitants)
60 Km W of Arezzo (99543 inhabitants)
68 Km E of Pisa (89158 inhabitants)
69 Km E of Livorno (159219 inhabitants)
70 Km SE of Lucca (89046 inhabitants)
74 Km N of Grosseto (82087 inhabitants)
87 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 1.0 2019-08-06
11:12:31
43.4275 11.1483 11 2019-11-13
14:31:06
Bollettino Sismico Italiano INGV 73269361
Reviewed
Rev100
ML 0.9 2019-08-06
11:12:31
43.4187 11.1442 5 2019-08-06
11:30:59
Sala Sismica INGV-Roma 71217961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-06 11:12:31 ± 0.08
Latitude 43.4275 ± 0.0045
Longitude 11.1483 ± 0.0149
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73269361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1205
Semi-minor axis of confidence ellipse (meter) 545
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 82
Circular confidence region, given by single value of horizontal uncertainty (meter) 1200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 112
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38851
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 71217961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-06 11:30:59

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 73269361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-15 12:58:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HPAC.HHZ. 2019-08-06T11:14:07.79 3.0 positive manual Pn 6.74 0
SI.ROSI.HHZ. 2019-08-06T11:13:58.76 3.0 undecidable manual Sg 8.59 0
SL.LJU.BHZ. 2019-08-06T11:13:49.02 3.0 undecidable manual Sg 6.34 0
IX.MNT3.HHZ.02 2019-08-06T11:13:48.82 3.0 undecidable manual Sn -3.59 0
IV.CORL.HHZ. 2019-08-06T11:13:46.72 3.0 negative manual Pn 6.13 0
IV.GATE.HHZ. 2019-08-06T11:13:45.37 3.0 undecidable manual Sg 6.29 0
IT.ORP.HGZ. 2019-08-06T11:13:43.10 3.0 undecidable manual Sn -4.65 0
IV.MFNL.HHZ. 2019-08-06T11:13:38.03 3.0 negative manual Pn -3.34 0
ST.PANI.EHZ. 2019-08-06T11:13:35.71 3.0 undecidable manual Sg 6.58 0
IV.VBKN.HHZ. 2019-08-06T11:13:19.63 3.0 undecidable manual Pg 12.72 0
IV.SAMA.HHZ. 2019-08-06T11:13:13.61 3.0 undecidable manual Sg 3.04 0
IV.SBPO.HNZ. 2019-08-06T11:13:05.41 3.0 undecidable manual Sn -2.52 0
SI.MOSI.HHZ. 2019-08-06T11:13:03.68 3.0 negative manual Pn -3.02 0
ST.PANI.EHZ. 2019-08-06T11:12:58.01 3.0 positive manual Pn 0.68 0
IV.CRMI.HNN. 2019-08-06T11:12:44.91 0.6 undecidable manual S 342 43.0236 50 -0.12 47
IV.MAGO.CHE. 2019-08-06T11:12:44.63 0.6 undecidable manual S 247 43.1235 50 -0.42 45
IV.TRIF.CHZ. 2019-08-06T11:12:43.94 0.6 undecidable manual S 210 39.9267 50 -0.27 46
IV.CRMI.HNN. 2019-08-06T11:12:39.20 0.1 undecidable manual P 342 43.0236 50 0.08 96
IV.MAGO.CHE. 2019-08-06T11:12:39.37 0.3 undecidable manual P 247 43.1235 50 0.24 69
IV.FROS.CHZ. 2019-08-06T11:12:39.83 0.6 undecidable manual S 178 24.1536 50 -0.16 49
IV.TRIF.CHZ. 2019-08-06T11:12:38.73 0.3 undecidable manual P 210 39.9267 50 0.08 72
IV.FOSV.EHZ. 2019-08-06T11:12:38.24 3.0 undecidable manual S -1.26 0
IV.FROS.CHZ. 2019-08-06T11:12:36.43 0.1 undecidable manual P 178 24.1536 50 0.21 96
IV.CSNT.HHZ. 2019-08-06T11:12:36.53 0.3 undecidable manual S 66 12.4764 131 -0.3 72
IV.OSSC.HHZ. 2019-08-06T11:12:36.92 0.3 undecidable manual S 36 13.2756 130 -0.1 75
IV.BRSN.EHZ. 2019-08-06T11:12:34.06 3.0 positive manual Pn 2.17 0
IV.CSNT.HHZ. 2019-08-06T11:12:34.51 0.1 undecidable manual P 66 12.4764 131 0.12 100
IV.OSSC.HHZ. 2019-08-06T11:12:34.62 0.1 undecidable manual P 36 13.2756 130 0.12 100
IV.CSP1.EHZ. 2019-08-06T11:12:33.79 3.0 undecidable manual P -2.26 0
IV.IMOL.HNZ. 2019-08-06T11:12:31.13 3.0 undecidable manual P -2.29 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSNT.HHE. ML:0.8 0.00006349634 0.0768 AML other m 2019-08-06T11:12:36.73
IV.OSSC.HHN. ML:0.9 0.00007994365000000001 1.6224 AML other m 2019-08-06T11:12:37.12
IV.OSSC.HNN. ML:1.1 0.00013380195000000001 0.2048 AML other m 2019-08-06T11:12:37.46
IV.OSSC.HHE. ML:1.0 0.0001093745 0.1984 AML other m 2019-08-06T11:12:37.46
IV.OSSC.HNE. ML:0.9 0.000077070105 1.2288 AML other m 2019-08-06T11:12:37.97
IV.FROS.CHE. ML:1.2 0.0000997286 0.1088 AML other m 2019-08-06T11:12:40.19
IV.FROS.CHN. ML:1.0 0.000060534215 0.1344 AML other m 2019-08-06T11:12:41.31
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