Earthquake with magnitude of ML 0.9 on date 13-11-2019 and time 20:43:50 (Italy) in region 1 km NW Colle di Val d'Elsa (SI)

A magnitude ML 0.9 earthquake occured in region: 1 km NW Colle di Val d'Elsa (SI), on

  • 13-11-2019 19:43:50 (UTC)
  • 13-11-2019 20:43:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.43, 11.11 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.

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 1 21620 21620
Poggibonsi SI 5 29196 50816
San Gimignano SI 7 7820 58636
Monteriggioni SI 10 9810 68446
Casole d'Elsa SI 11 3897 72343
Barberino Val d'Elsa FI 13 4386 76729
Certaldo FI 14 16121 92850
Castellina in Chianti SI 15 2859 95709
Tavarnelle Val di Pesa FI 15 7800 103509
Gambassi Terme FI 17 4870 108379
Sovicille SI 20 10116 118495
Radicondoli SI 20 914 119409

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 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)
65 Km E of Pisa (89158 inhabitants)
66 Km E of Livorno (159219 inhabitants)
67 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 0.9 2019-11-13
19:43:50
43.43 11.11 7 2020-02-28
16:42:19
Bollettino Sismico Italiano INGV 75541541
Reviewed
Rev100
ML 1.5 2019-11-13
19:43:50
43.43 11.16 10 2019-11-13
19:54:03
Sala Sismica INGV-Roma 73817601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-11-13 19:43:50 ± 0.14
Latitude 43.43 ± 0.01
Longitude 11.11 ± 0.01
Depth (km) 7 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 75541541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1200
Semi-minor axis of confidence ellipse (meter) 540
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 312
Circular confidence region, given by single value of horizontal uncertainty (meter) 1200
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 164
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.1367
Epicentral distance of station farthest from the epicenter (degree) 0.36243
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0
Num. used stations 2
Type of magnitude ML
Reference to an origin 75541541
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-01-14 16:59:04

ML:1.5

Field Value
Value 1.5
Uncertainty 0.7
Num. used stations 4
Type of magnitude ML
Reference to an origin 73817601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-11-13 19:54:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MAGO.CHE. 2019-11-13T19:44:04.28 0.6 undecidable manual S 244 0.3624 50 -0.52 43
IV.TRIF.CHZ. 2019-11-13T19:44:03.64 0.6 undecidable manual S 205 0.3498 100 -0.71 40
IV.MAGO.CHE. 2019-11-13T19:43:59.15 0.1 undecidable manual P 244 0.3624 50 0.32 90
IV.FROS.CHZ. 2019-11-13T19:43:59.76 0.3 undecidable manual S 171 0.2248 105 0.11 73
IV.TRIF.CHZ. 2019-11-13T19:43:58.52 0.1 undecidable manual P 205 0.3498 100 -0.04 96
IV.FROS.CHZ. 2019-11-13T19:43:56.19 0.1 undecidable manual P 171 0.2248 105 0.34 93
IV.CSNT.HHZ. 2019-11-13T19:43:56.09 0.3 undecidable manual S 73 0.1394 114 -0.44 69
IV.OSSC.HHZ. 2019-11-13T19:43:56.35 0.3 undecidable manual S 48 0.1367 114 -0.08 75
IV.CSNT.HHZ. 2019-11-13T19:43:54.10 0.1 undecidable manual P 73 0.1394 114 0.05 100
IV.OSSC.HHZ. 2019-11-13T19:43:54.18 0.1 positive manual P 48 0.1367 114 0.19 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSNT.HHN. ML:0.9 7.46E-5 0.42 AML other m 2019-11-13T19:43:56.24
IV.CSNT.HHE. ML:0.9 8.645E-5 0.48 AML other m 2019-11-13T19:43:56.30
IV.FIR.HHN. ML:2.1 0.0004415 0.08 AML other m 2019-11-13T19:44:06.38
IV.FIR.HHE. ML:2 0.0003715 1.94 AML other m 2019-11-13T19:44:07.98
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download