Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 15-02-2020 and time 13:10:16 (Italy) in region 2 km W San Godenzo (FI)

A magnitude ML 1.3 earthquake occured in region: 2 km W San Godenzo (FI), on

  • 15-02-2020 12:10:16 (UTC)
  • 15-02-2020 13:10:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.9260, 11.5960 at 9 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.

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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
San Godenzo FI 2 1167 1167
Dicomano FI 7 5515 6682
Londa FI 8 1840 8522
Vicchio FI 10 8044 16566
Rufina FI 14 7346 23912
Premilcuore FC 16 799 24711
Marradi FI 17 3139 27850
Borgo San Lorenzo FI 17 18211 46061
Pratovecchio Stia AR 18 5845 51906
Portico e San Benedetto FC 19 756 52662
Pelago FI 19 7660 60322

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NE of Firenze (382808 inhabitants)
38 Km E of Scandicci (50609 inhabitants)
40 Km E of Prato (191150 inhabitants)
46 Km SW of Faenza (58541 inhabitants)
49 Km S of Imola (69797 inhabitants)
49 Km SW of Forlì (117913 inhabitants)
54 Km E of Pistoia (90315 inhabitants)
56 Km NW of Arezzo (99543 inhabitants)
57 Km W of Cesena (96758 inhabitants)
66 Km SE of Bologna (386663 inhabitants)
71 Km NE of Siena (53903 inhabitants)
73 Km SW of Ravenna (159116 inhabitants)
79 Km W of Rimini (147750 inhabitants)
88 Km E of Lucca (89046 inhabitants)
96 Km SE of Modena (184973 inhabitants)
99 Km E of Pisa (89158 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 2020-02-15
12:10:16		 43.9263 11.596 9 2020-02-15
12:17:59		 Sala Sismica INGV-Roma 76539201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-15 12:10:16 ± 0.04
Latitude 43.9263 ± 0.0018
Longitude 11.5960 ± 0.0025
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76539201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 214
Semi-minor axis of confidence ellipse (meter) 186
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 199
Circular confidence region, given by single value of horizontal uncertainty (meter) 210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47574
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 76539201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-15 12:17:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FERS.HNZ. 2020-02-15T12:10:36.81 3.0 positive manual P 0.52 0
IV.VISG.HHZ. 2020-02-15T12:10:28.13 0.3 undecidable manual S 336 31.8459 50 -0.06 72
IV.OSSC.HHZ. 2020-02-15T12:10:26.54 0.3 undecidable manual P 212 52.8027 50 -0.03 69
IV.FNVD.HHZ. 2020-02-15T12:10:25.60 0.1 undecidable manual P 306 46.2204 50 0.04 94
IV.CRE.HHZ. 2020-02-15T12:10:25.20 0.3 undecidable manual P 140 44.4222 50 -0.08 70
IV.SEI.HHZ. 2020-02-15T12:10:25.45 0.3 undecidable manual S 307 23.6541 110 -0.04 73
IV.SFI.EHZ. 2020-02-15T12:10:24.42 0.3 undecidable manual S 97 20.1687 114 0.05 73
IV.ASQU.HHZ. 2020-02-15T12:10:24.79 0.3 undecidable manual S 133 21.1677 113 0.12 72
IV.MPPT.EHZ. 2020-02-15T12:10:24.57 0.3 undecidable manual P 275 40.5261 50 -0.11 70
IV.BRIS.HHZ. 2020-02-15T12:10:24.13 0.3 undecidable manual P 22 35.742 50 0.19 69
IV.VISG.HHZ. 2020-02-15T12:10:23.22 0.3 undecidable manual P 336 31.8459 50 -0.12 71
IV.LMD.HHZ. 2020-02-15T12:10:23.89 0.3 undecidable manual S 28 18.9699 115 -0.09 73
IV.RONT.HHZ. 2020-02-15T12:10:22.86 0.3 undecidable manual S 300 14.9739 120 0.09 73
IV.SEI.HHZ. 2020-02-15T12:10:21.65 0.1 undecidable manual P 307 23.6541 110 -0.14 95
IV.RUFI.EHZ. 2020-02-15T12:10:21.76 0.3 undecidable manual S 215 11.9769 126 -0.13 73
IV.SFI.EHZ. 2020-02-15T12:10:21.13 0.1 undecidable manual P 97 20.1687 114 -0.01 98
IV.ASQU.HHZ. 2020-02-15T12:10:21.31 0.3 undecidable manual P 133 21.1677 113 0 74
IV.RONT.HHZ. 2020-02-15T12:10:20.61 0.3 undecidable manual P 300 14.9739 120 0.4 69
IV.LMD.HHZ. 2020-02-15T12:10:20.87 0.3 undecidable manual P 28 18.9699 115 -0.05 74
IV.RINC.HHZ. 2020-02-15T12:10:19.97 0.1 undecidable manual S 169 4.4955 153 -0.2 97
IV.RUFI.EHZ. 2020-02-15T12:10:19.89 0.1 undecidable manual P 215 11.9769 126 0.18 97
IV.RINC.HHZ. 2020-02-15T12:10:18.78 0.1 undecidable manual P 169 4.4955 153 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SFI.EHN. ML:1.5 0.0002475 1.16 AML other m 2020-02-15T12:10:24.67
IV.LMD.HHN. ML:1.6 0.0003585 0.46 AML other m 2020-02-15T12:10:25.37
IV.LMD.HHE. ML:1.6 0.00028649999999999997 0.42 AML other m 2020-02-15T12:10:25.38
IV.ASQU.HHN. ML:1.2 0.0001115 0.42 AML other m 2020-02-15T12:10:25.43
IV.SFI.EHE. ML:1.3 0.00015099999999999998 1.22 AML other m 2020-02-15T12:10:25.71
IV.SEI.HHN. ML:1.4 0.0001805 1.34 AML other m 2020-02-15T12:10:26.73
IV.ASQU.HHE. ML:1.2 0.00011999999999999999 1.56 AML other m 2020-02-15T12:10:26.96
IV.SEI.HHE. ML:1.3 0.000119 0.36 AML other m 2020-02-15T12:10:28.34
IV.VISG.HHE. ML:1.1 0.0000574 0.94 AML other m 2020-02-15T12:10:29.79
IV.VISG.HHN. ML:1.1 0.00006125 1.14 AML other m 2020-02-15T12:10:30.38
IV.CRE.HHN. ML:1.3 0.00006110000000000001 0.2 AML other m 2020-02-15T12:10:32.43
IV.CRE.HHE. ML:1.3 0.000055 0.98 AML other m 2020-02-15T12:10:32.01
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