Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 17-11-2019 and time 03:48:26 (Italy) in region 3 km N Colle di Val d'Elsa (SI)

A magnitude ML 2.2 earthquake occured in region: 3 km N Colle di Val d'Elsa (SI), on

  • 17-11-2019 02:48:26 (UTC)
  • 17-11-2019 03:48:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4450, 11.1190 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.

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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
Colle di Val d'Elsa SI 3 21620 21620
Poggibonsi SI 3 29196 50816
San Gimignano SI 7 7820 58636
Monteriggioni SI 10 9810 68446
Barberino Val d'Elsa FI 12 4386 72832
Casole d'Elsa SI 13 3897 76729
Certaldo FI 13 16121 92850
Tavarnelle Val di Pesa FI 14 7800 100650
Castellina in Chianti SI 14 2859 103509
Gambassi Terme FI 17 4870 108379

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NW of Siena (53903 inhabitants)
35 Km S of Scandicci (50609 inhabitants)
38 Km SW of Firenze (382808 inhabitants)
49 Km S of Prato (191150 inhabitants)
57 Km S of Pistoia (90315 inhabitants)
62 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)
76 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 2.2 2019-11-17
02:48:26		 43.4447 11.1192 8 2020-02-28
16:42:24		 Bollettino Sismico Italiano INGV 76459011
Reviewed
Rev100 		ML 2.2 2019-11-17
02:48:26		 43.4318 11.1248 9 2019-11-17
02:56:15		 Sala Sismica INGV-Roma 73887181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-11-17 02:48:26 ± 0.13
Latitude 43.4447 ± 0.0045
Longitude 11.1192 ± 0.0074
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 76459011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 575
Semi-minor axis of confidence ellipse (meter) 520
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 76
Circular confidence region, given by single value of horizontal uncertainty (meter) 580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.96227
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.1
Num. used stations 12
Type of magnitude ML
Reference to an origin 73887181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-11-17 02:56:15

ML:2.2

Field Value
Value 2.2
Uncertainty 0.1
Num. used stations 12
Type of magnitude ML
Reference to an origin 76459011
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-12 10:34:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BARO.EHZ. 2019-11-17T02:49:09.72 3.0 undecidable manual S -1.44 0
IV.ATMC.EHE. 2019-11-17T02:48:52.59 0.6 undecidable manual S 89 86.4468 50 -0.21 43
IV.ARCI.HHZ. 2019-11-17T02:48:48.19 0.3 undecidable manual S 156 71.7726 50 -0.69 57
IV.ASQU.HHZ. 2019-11-17T02:48:47.51 0.6 undecidable manual S 54 66.4779 50 0.04 46
IV.MPPT.EHE. 2019-11-17T02:48:45.05 0.3 undecidable manual S 358 56.8986 50 0.13 69
IV.CELB.HHE. 2019-11-17T02:48:45.21 0.3 undecidable manual P 224 106.8153 50 0.36 60
IV.PII.HHN. 2019-11-17T02:48:44.30 0.3 undecidable manual S 303 56.7987 50 -0.58 62
IV.ATVA.EHE. 2019-11-17T02:48:42.95 0.6 undecidable manual P 101 95.8263 50 -0.21 42
IV.ATMI.HHZ. 2019-11-17T02:48:42.96 0.6 undecidable manual P 97 93.4398 50 0.18 42
IV.ATMC.EHE. 2019-11-17T02:48:41.90 0.3 undecidable manual P 89 86.4468 50 0.19 64
IV.LMD.HHZ. 2019-11-17T02:48:41.98 0.3 undecidable manual P 34 84.5487 50 0.56 59
IV.SSP9.EHZ. 2019-11-17T02:48:41.60 0.3 undecidable manual P 80 82.6506 50 0.47 61
IV.MAGO.CHZ. 2019-11-17T02:48:40.06 3.0 undecidable manual S -0.29 0
TV.SF11.HHZ. 2019-11-17T02:48:40.26 0.6 undecidable manual P 144 78.366 50 -0.2 43
IV.CRMI.HHZ. 2019-11-17T02:48:40.04 0.3 undecidable manual S 344 40.5261 50 -0.49 66
IV.CASP.HHZ. 2019-11-17T02:48:40.43 0.3 undecidable manual P 196 75.369 50 0.43 62
IV.FIR.HNZ. 2019-11-17T02:48:39.84 0.6 undecidable manual S 17 38.1285 50 -0.07 48
IV.ARCI.HHZ. 2019-11-17T02:48:39.51 0.6 undecidable manual P 156 71.7726 50 0.06 45
IV.TRIF.CHZ. 2019-11-17T02:48:39.39 3.0 undecidable manual S -0.41 0
IV.ASQU.HHZ. 2019-11-17T02:48:38.80 0.3 undecidable manual P 54 66.4779 50 0.17 67
IV.MPPT.EHE. 2019-11-17T02:48:37.24 0.3 undecidable manual P 358 56.8986 50 0.08 70
IV.PII.HHN. 2019-11-17T02:48:37.22 0.3 undecidable manual P 303 56.7987 50 0.08 70
IV.FROS.CHZ. 2019-11-17T02:48:35.45 3.0 undecidable manual S -0.02 0
IV.CRMI.HHZ. 2019-11-17T02:48:34.50 0.3 undecidable manual P 344 40.5261 50 -0.13 71
IV.MAGO.CHZ. 2019-11-17T02:48:34.60 3.0 undecidable manual P 0.17 0
IV.FIR.HNZ. 2019-11-17T02:48:34.45 0.1 undecidable manual P 17 38.1285 50 0.18 94
IV.TRIF.CHZ. 2019-11-17T02:48:34.19 3.0 undecidable manual P 0.08 0
IV.OSSC.HHZ. 2019-11-17T02:48:32.04 0.3 undecidable manual S 49 13.4754 121 0.05 75
IV.FROS.CHZ. 2019-11-17T02:48:31.80 3.0 positive manual P 0.19 0
IV.CSNT.HHZ. 2019-11-17T02:48:31.68 0.3 undecidable manual S 77 14.0748 119 -0.51 68
IV.CSNT.HHZ. 2019-11-17T02:48:29.68 0.1 undecidable manual P 77 14.0748 119 -0.14 99
IV.OSSC.HHZ. 2019-11-17T02:48:29.78 0.1 positive manual P 49 13.4754 121 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSNT.HHN. ML:2.2 0.001765 0.38 AML other m 2019-11-17T02:48:31.76
IV.CSNT.HHE. ML:2.3 0.0023 1.54 AML other m 2019-11-17T02:48:32.90
IV.OSSC.HNN. ML:2.3 0.0022 0.4 AML other m 2019-11-17T02:48:32.21
IV.OSSC.HHN. ML:2.1 0.00147 0.42 AML other m 2019-11-17T02:48:32.41
IV.OSSC.HNE. ML:2.1 0.001445 0.42 AML other m 2019-11-17T02:48:32.41
IV.OSSC.HHE. ML:2.3 0.00222 0.4 AML other m 2019-11-17T02:48:32.21
IV.FROS.CHN. ML:2.0 0.0006495 1.42 AML other m 2019-11-17T02:48:35.77
IV.FROS.CHE. ML:2.1 0.0006990000000000001 0.92 AML other m 2019-11-17T02:48:36.56
IV.TRIF.CHN. ML:2.2 0.0005840000000000001 1.26 AML other m 2019-11-17T02:48:40.10
IV.TRIF.CHE. ML:2.2 0.0004984999999999999 0.12 AML other m 2019-11-17T02:48:40.34
IV.MAGO.CHE. ML:2.1 0.00043599999999999997 0.44 AML other m 2019-11-17T02:48:40.52
IV.MAGO.CHN. ML:2.1 0.00040496655 0.144 AML other m 2019-11-17T02:48:43.27
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