Earthquake with magnitude of ML 1.3 on date 28-06-2019 and time 23:28:55 (Italy) in region 2 km W Colle di Val d'Elsa (SI)

A magnitude ML 1.3 earthquake occured in region: 2 km W Colle di Val d'Elsa (SI), on

  • 28-06-2019 21:28:55 (UTC)
  • 28-06-2019 23:28:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4320, 11.0920 at 6 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 2 21620 21620
San Gimignano SI 6 7820 29440
Poggibonsi SI 6 29196 58636
Casole d'Elsa SI 11 3897 62533
Monteriggioni SI 11 9810 72343
Certaldo FI 14 16121 88464
Barberino Val d'Elsa FI 14 4386 92850
Tavarnelle Val di Pesa FI 16 7800 100650
Castellina in Chianti SI 16 2859 103509
Gambassi Terme FI 16 4870 108379
Volterra PI 19 10519 118898
Radicondoli SI 19 914 119812
Montaione FI 20 3700 123512

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)
64 Km E of Pisa (89158 inhabitants)
64 Km W of Arezzo (99543 inhabitants)
65 Km E of Livorno (159219 inhabitants)
66 Km SE of Lucca (89046 inhabitants)
75 Km N of Grosseto (82087 inhabitants)
83 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
Reviewed
Rev100
ML 1.3 2019-06-28
21:28:55
43.4318 11.0917 6 2019-06-28
22:53:48
Sala Sismica INGV-Roma 70011971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-06-28 21:28:55 ± 0.07
Latitude 43.4318 ± 0.0036
Longitude 11.0917 ± 0.0062
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 70011971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 403
Semi-minor axis of confidence ellipse (meter) 381
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 127
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.64391
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 70011971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-06-28 22:53:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CIGN.HHZ. 2019-06-28T21:30:36.71 3.0 undecidable manual Sg 7.65 0
IV.CRJA.HHZ. 2019-06-28T21:30:32.09 3.0 undecidable manual Pg 9.85 0
OX.VARN.HHZ. 2019-06-28T21:29:45.99 3.0 undecidable manual Pg 7.6 0
IV.ARCI.HHE. 2019-06-28T21:29:18.23 0.3 undecidable manual S 154 71.4729 50 -0.14 66
IV.MOCL.EHE. 2019-06-28T21:29:16.17 0.6 undecidable manual S 6 63.9915 50 -0.2 44
IV.MTCR.EHE. 2019-06-28T21:29:16.99 0.6 undecidable manual S 354 66.4779 50 -0.06 45
IV.PII.HHE. 2019-06-28T21:29:13.83 0.6 undecidable manual S 305 55.7997 50 -0.36 43
IV.MAGO.CHE. 2019-06-28T21:29:09.22 0.3 undecidable manual S 243 39.1275 99 -0.31 68
IV.TRIF.CHE. 2019-06-28T21:29:08.87 0.3 undecidable manual S 204 38.3283 99 -0.38 67
IV.MOCL.EHE. 2019-06-28T21:29:08.05 0.6 undecidable manual P 6 63.9915 50 0.38 43
IV.MTCR.EHE. 2019-06-28T21:29:08.23 0.3 undecidable manual P 354 66.4779 50 0.17 67
IV.ARCI.HHE. 2019-06-28T21:29:08.98 0.3 undecidable manual P 154 71.4729 50 0.16 66
IV.PII.HHE. 2019-06-28T21:29:05.97 3.0 undecidable manual P 305 55.7997 50 -0.43 0
IV.MAGO.CHE. 2019-06-28T21:29:04.03 0.1 undecidable manual P 243 39.1275 99 0.32 90
IV.FROS.CHZ. 2019-06-28T21:29:04.75 0.3 undecidable manual S 168 25.1526 104 -0.02 74
IV.TRIF.CHE. 2019-06-28T21:29:03.58 0.1 undecidable manual P 204 38.3283 99 0.03 96
IV.CSNT.HHZ. 2019-06-28T21:29:01.44 0.3 undecidable manual S 74 16.6722 111 -0.49 68
IV.OSSC.HHE. 2019-06-28T21:29:01.64 0.3 undecidable manual S 51 16.0728 111 -0.09 74
IV.FROS.CHZ. 2019-06-28T21:29:01.33 0.1 undecidable manual P 168 25.1526 104 0.36 92
IV.CSNT.HHZ. 2019-06-28T21:28:59.34 0.1 positive manual P 74 16.6722 111 0.02 100
IV.OSSC.HHE. 2019-06-28T21:28:59.43 0.1 positive manual P 51 16.0728 111 0.22 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FROS.CHE. ML:1.2 0.00009845 1.08 AML other m 2019-06-28T21:29:04.33
IV.CSNT.HHN. ML:1.4 0.00023899999999999998 0.54 AML other m 2019-06-28T21:29:01.52
IV.FROS.CHN. ML:1.1 0.0000868 0.64 AML other m 2019-06-28T21:29:05.62
IV.RUFI.EHE. ML:1.9 0.00017000000000000004 0.42 AML other m 2019-06-28T21:29:27.01
IV.RUFI.EHN. ML:2.1 0.00028999999999999995 0.42 AML other m 2019-06-28T21:29:31.57
IV.FAGN.HHN. ML:2.1 0.0000263 0.5 AML other m 2019-06-28T21:29:33.88
IV.FAGN.HHE. ML:2.2 0.000029749999999999998 0.48 AML other m 2019-06-28T21:29:34.41
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download