Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 09-11-2019 and time 00:16:26 (UTC) in region 4 km E Borgo San Lorenzo (FI)

A magnitude ML 2.3 earthquake occured in region: 4 km E Borgo San Lorenzo (FI), on

  • 09-11-2019 00:16:26 (UTC)
  • 09-11-2019 01:16:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.9640, 11.4320 at 6 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
Borgo San Lorenzo FI 4 18211 18211
Vicchio FI 4 8044 26255
Scarperia e San Piero FI 9 12217 38472
Dicomano FI 11 5515 43987
Vaglia FI 14 5073 49060
San Godenzo FI 16 1167 50227
Londa FI 16 1840 52067
Barberino di Mugello FI 16 10836 62903
Rufina FI 16 7346 70249
Firenzuola FI 18 4726 74975
Palazzuolo sul Senio FI 19 1154 76129
Marradi FI 19 3139 79268

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NE of Firenze (382808 inhabitants)
28 Km E of Prato (191150 inhabitants)
30 Km NE of Scandicci (50609 inhabitants)
41 Km E of Pistoia (90315 inhabitants)
49 Km SW of Imola (69797 inhabitants)
51 Km SW of Faenza (58541 inhabitants)
57 Km SW of Forlì (117913 inhabitants)
60 Km S of Bologna (386663 inhabitants)
66 Km NW of Arezzo (99543 inhabitants)
68 Km W of Cesena (96758 inhabitants)
72 Km N of Siena (53903 inhabitants)
76 Km E of Lucca (89046 inhabitants)
79 Km SW of Ravenna (159116 inhabitants)
86 Km SE of Modena (184973 inhabitants)
87 Km E of Pisa (89158 inhabitants)
91 Km W of Rimini (147750 inhabitants)
95 Km E of Viareggio (62467 inhabitants)
98 Km S of Ferrara (133155 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 2.3 2019-11-09
00:16:26		 43.9645 11.4322 6 2020-02-28
16:42:17		 Bollettino Sismico Italiano INGV 75120871
Reviewed
Rev100 		ML 2.3 2019-11-09
00:16:25		 43.9792 11.4398 8 2019-11-09
00:25:01		 Sala Sismica INGV-Roma 73747421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-11-09 00:16:26 ± 0.07
Latitude 43.9645 ± 0.0045
Longitude 11.4322 ± 0.0050
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 75120871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 403
Semi-minor axis of confidence ellipse (meter) 373
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 9
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) 60
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 34
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) 0.69697
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 42
Type of magnitude ML
Reference to an origin 75120871
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-30 15:36:35

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 42
Type of magnitude ML
Reference to an origin 73747421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-11-09 00:25:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATTE.HHZ. 2019-11-09T00:16:57.67 3.0 undecidable manual S -3.93 0
IV.SSP9.EHZ. 2019-11-09T00:16:49.39 0.3 undecidable manual S 127 70.7736 50 0.83 55
IV.BDI.HHZ. 2019-11-09T00:16:47.49 0.6 undecidable manual S 280 67.5768 50 -0.21 45
IV.CRE.HHZ. 2019-11-09T00:16:45.34 0.3 undecidable manual S 132 56.5989 50 0.59 62
IV.CSNT.HHZ. 2019-11-09T00:16:44.28 0.6 undecidable manual S 192 55.6998 50 -0.24 45
IV.OSSC.HHZ. 2019-11-09T00:16:43.47 0.3 undecidable manual S 197 51.1155 50 0.17 70
GU.POPM.HHZ. 2019-11-09T00:16:43.91 0.3 undecidable manual S 280 54.6009 50 -0.32 67
IV.CRMI.HHZ. 2019-11-09T00:16:40.07 0.3 undecidable manual S 243 40.7259 98 -0.23 70
IV.MTRZ.HNZ. 2019-11-09T00:16:40.80 0.6 undecidable manual S 359 38.628 98 1.23 32
IV.SSP9.EHZ. 2019-11-09T00:16:39.08 0.6 positive manual P 127 70.7736 50 0.05 46
IV.PII.HHZ. 2019-11-09T00:16:39.88 0.1 negative manual P 250 77.367 50 -0.17 88
IV.ASQU.HHZ. 2019-11-09T00:16:38.28 0.3 undecidable manual S 123 34.1436 100 0.27 70
IV.BDI.HHZ. 2019-11-09T00:16:38.11 0.3 negative manual P 280 67.5768 50 -0.43 64
IV.FNVD.HHZ. 2019-11-09T00:16:37.39 0.3 undecidable manual S 313 33.4443 100 -0.39 69
IV.ZCCA.HHZ. 2019-11-09T00:16:37.63 0.3 undecidable manual P 320 56.0994 50 0.86 55
IV.SFI.EHZ. 2019-11-09T00:16:37.67 0.3 undecidable manual S 101 33.8439 100 -0.24 71
IV.CSNT.HHZ. 2019-11-09T00:16:36.46 0.3 undecidable manual P 192 55.6998 50 -0.24 68
GU.POPM.HHZ. 2019-11-09T00:16:36.11 0.1 negative manual P 280 54.6009 50 -0.42 87
IV.MPPT.EHN. 2019-11-09T00:16:36.05 0.6 undecidable manual S 268 27.3504 102 0.35 47
IV.CRE.HHZ. 2019-11-09T00:16:36.60 0.6 undecidable manual P 132 56.5989 50 -0.23 45
IV.IMOL.EHZ. 2019-11-09T00:16:36.15 0.3 negative manual P 29 50.3163 50 0.28 68
IV.OSSC.HHZ. 2019-11-09T00:16:35.73 0.1 undecidable manual P 197 51.1155 50 -0.27 91
IT.FIE.HGZ. 2019-11-09T00:16:34.03 3.0 undecidable manual S -0.12 0
IV.LMD.HHZ. 2019-11-09T00:16:34.67 0.3 undecidable manual S 60 25.2525 103 -0.34 70
IV.CRMI.HHZ. 2019-11-09T00:16:34.11 0.1 positive manual P 243 40.7259 98 -0.15 95
IV.MOCL.EHZ. 2019-11-09T00:16:33.73 0.1 undecidable manual S 283 20.5683 106 0.31 95
IV.MTRZ.HNZ. 2019-11-09T00:16:33.78 0.3 undecidable manual P 359 38.628 98 -0.06 73
IV.SFI.EHZ. 2019-11-09T00:16:32.56 0.1 positive manual P 101 33.8439 100 -0.32 93
IV.ASQU.HHZ. 2019-11-09T00:16:32.70 0.1 positive manual P 123 34.1436 100 -0.24 94
IV.FNVD.HHZ. 2019-11-09T00:16:32.47 0.1 positive manual P 313 33.4443 100 -0.34 92
IV.FIR.HHZ. 2019-11-09T00:16:31.68 0.1 undecidable manual P 214 25.3524 103 0.44 92
IV.MPPT.EHN. 2019-11-09T00:16:31.83 0.1 undecidable manual P 268 27.3504 102 0.22 96
IV.MOCL.EHZ. 2019-11-09T00:16:30.63 0.1 undecidable manual P 283 20.5683 106 0.34 95
IT.FIE.HGZ. 2019-11-09T00:16:30.85 3.0 negative manual P 0.17 0
IV.SEI.HHZ. 2019-11-09T00:16:30.56 0.3 undecidable manual S 330 11.5773 117 0.06 76
IV.LMD.HHZ. 2019-11-09T00:16:30.99 0.1 positive manual P 60 25.2525 103 -0.22 96
IV.SEI.HHZ. 2019-11-09T00:16:28.75 0.1 positive manual P 330 11.5773 117 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SEI.HHN. ML:2.7 0.007455 1.66 AML other m 2019-11-09T00:16:31.03
IV.SEI.HHE. ML:2.5 0.004275 0.32 AML other m 2019-11-09T00:16:31.82
IV.MOCL.EHE. ML:2.6 0.0033049999999999998 0.14 AML other m 2019-11-09T00:16:34.36
IV.LMD.HHN. ML:2.6 0.0024449999999999997 0.72 AML other m 2019-11-09T00:16:34.92
IV.MOCL.EHN. ML:2.4 0.002 0.7 AML other m 2019-11-09T00:16:35.42
IV.LMD.HHE. ML:2.5 0.001815 1.7 AML other m 2019-11-09T00:16:35.92
IV.FIR.HNE. ML:2.6 0.002355 0.58 AML other m 2019-11-09T00:16:36.65
IV.FIR.HHE. ML:2.6 0.002255 0.58 AML other m 2019-11-09T00:16:36.65
IV.SFI.HNN. ML:2.1 0.0005245 1.08 AML other m 2019-11-09T00:16:38.12
IV.SFI.EHN. ML:2.1 0.0005335000000000001 0.86 AML other m 2019-11-09T00:16:38.23
IV.FNVD.HHN. ML:2.2 0.000708 0.56 AML other m 2019-11-09T00:16:38.56
IV.SFI.HNE. ML:2.0 0.00046399999999999995 1.16 AML other m 2019-11-09T00:16:38.97
IV.FNVD.HHE. ML:2.2 0.0007624999999999999 0.16 AML other m 2019-11-09T00:16:38.61
IV.ASQU.HHE. ML:2.0 0.000484 0.18 AML other m 2019-11-09T00:16:38.73
IV.ASQU.HHN. ML:2.1 0.0005729999999999999 1.48 AML other m 2019-11-09T00:16:38.74
IV.FIR.HHN. ML:2.6 0.0022199999999999998 1.54 AML other m 2019-11-09T00:16:38.92
IV.SFI.EHE. ML:2.0 0.000488 0.38 AML other m 2019-11-09T00:16:39.99
IV.FIR.HNN. ML:2.6 0.00216 0.36 AML other m 2019-11-09T00:16:40.61
IV.CRMI.HNE. ML:2.2 0.00048499999999999997 1.7 AML other m 2019-11-09T00:16:40.92
IV.CRMI.HHE. ML:1.8 0.000247 1.7 AML other m 2019-11-09T00:16:40.92
IV.OSSC.HHE. ML:2.4 0.000736 1.56 AML other m 2019-11-09T00:16:43.08
IV.OSSC.HNN. ML:2.5 0.0007615 1.56 AML other m 2019-11-09T00:16:44.08
IV.CRMI.HHN. ML:1.9 0.000284 0.34 AML other m 2019-11-09T00:16:44.19
IV.CRMI.HNN. ML:2.2 0.0006225 0.32 AML other m 2019-11-09T00:16:44.19
IV.CSNT.HHE. ML:2.2 0.000359 1.22 AML other m 2019-11-09T00:16:45.71
IV.CSNT.HHN. ML:2.2 0.00039650000000000004 1.46 AML other m 2019-11-09T00:16:45.13
GU.POPM.HHE. ML:2.2 0.00036050000000000003 0.22 AML other m 2019-11-09T00:16:46.72
GU.POPM.HHN. ML:2.3 0.000498 0.3 AML other m 2019-11-09T00:16:46.81
IV.OSSC.HHN. ML:2.3 0.0005225 0.46 AML other m 2019-11-09T00:16:47.98
IV.OSSC.HNE. ML:2.3 0.00048750000000000003 0.44 AML other m 2019-11-09T00:16:47.98
IV.CRE.HHE. ML:2.2 0.000324 0.54 AML other m 2019-11-09T00:16:49.70
IV.BDI.HHN. ML:2.2 0.0002565 0.46 AML other m 2019-11-09T00:16:49.56
IV.CRE.HHN. ML:2.2 0.0003915 0.3 AML other m 2019-11-09T00:16:50.55
IV.IMOL.HNE. ML:2.1 0.000331 1.06 AML other m 2019-11-09T00:16:50.06
IV.BDI.HHE. ML:2.2 0.00029749999999999997 0.28 AML other m 2019-11-09T00:16:50.90
IV.PII.HHN. ML:2.4 0.00033850000000000004 1.1 AML other m 2019-11-09T00:16:51.21
IV.PII.HHE. ML:2.3 0.00028500000000000004 0.64 AML other m 2019-11-09T00:16:52.17
IV.SSP9.EHE. ML:2.1 0.0001922 0.56 AML other m 2019-11-09T00:16:53.22
IV.IMOL.HNN. ML:2.2 0.0004055 0.84 AML other m 2019-11-09T00:16:54.55
IV.SSP9.EHN. ML:2.1 0.0002035 0.7 AML other m 2019-11-09T00:16:54.89
IV.ATTE.HHE. ML:2.1 0.00010585 0.42 AML other m 2019-11-09T00:17:03.88
IV.ATTE.HHN. ML:2.1 0.00009775 0.38 AML other m 2019-11-09T00:17:03.70
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