Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 11-12-2019 and time 07:37:17 (Italy) in region 5 km NE Scarperia e San Piero (FI)

A magnitude ML 1.4 earthquake occured in region: 5 km NE Scarperia e San Piero (FI), on

  • 11-12-2019 06:37:17 (UTC)
  • 11-12-2019 07:37:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0060, 11.3510 at 10 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
Scarperia e San Piero FI 5 12217 12217
Borgo San Lorenzo FI 6 18211 30428
Barberino di Mugello FI 9 10836 41264
Vicchio FI 12 8044 49308
Vaglia FI 12 5073 54381
Firenzuola FI 13 4726 59107
Vernio PO 16 6060 65167
Vaiano PO 19 9895 75062
Dicomano FI 19 5515 80577
Cantagallo PO 20 3105 83682
Palazzuolo sul Senio FI 20 1154 84836

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NE of Prato (191150 inhabitants)
27 Km N of Firenze (382808 inhabitants)
31 Km NE of Scandicci (50609 inhabitants)
36 Km E of Pistoia (90315 inhabitants)
48 Km SW of Imola (69797 inhabitants)
53 Km SW of Faenza (58541 inhabitants)
54 Km S of Bologna (386663 inhabitants)
60 Km W of Forlì (117913 inhabitants)
70 Km E of Lucca (89046 inhabitants)
73 Km W of Cesena (96758 inhabitants)
74 Km NW of Arezzo (99543 inhabitants)
76 Km N of Siena (53903 inhabitants)
79 Km SE of Modena (184973 inhabitants)
82 Km SW of Ravenna (159116 inhabitants)
83 Km E of Pisa (89158 inhabitants)
89 Km E of Viareggio (62467 inhabitants)
94 Km SE of Carpi (70699 inhabitants)
95 Km S of Ferrara (133155 inhabitants)
96 Km SE of Reggio nell'Emilia (171345 inhabitants)
97 Km E of Massa (69479 inhabitants)
97 Km W of Rimini (147750 inhabitants)
98 Km NE of Livorno (159219 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 1.4 2019-12-11
06:37:17		 44.0062 11.3512 10 2020-02-28
16:42:15		 Bollettino Sismico Italiano INGV 74850511
Reviewed
Rev100 		ML 1.6 2019-12-11
06:37:17		 44.0068 11.352 9 2019-12-11
06:43:17		 Sala Sismica INGV-Roma 74542671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-11 06:37:17 ± 0.08
Latitude 44.0062 ± 0.0036
Longitude 11.3512 ± 0.0038
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 74850511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 311
Semi-minor axis of confidence ellipse (meter) 228
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 213
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.04856
Epicentral distance of station farthest from the epicenter (degree) 0.48833
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 74850511
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-21 10:24:50

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 74542671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-11 06:43:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.OSSC.HHZ. 2019-12-11T06:37:27.36 0.1 undecidable manual P 189 54.2013 50 -0.05 92
IV.RINC.HHE. 2019-12-11T06:37:26.60 0.6 undecidable manual S 123 24.3534 112 0.06 49
IV.FNVD.HHE. 2019-12-11T06:37:26.83 0.3 undecidable manual S 315 25.5522 111 -0.09 72
IV.MPPT.EHZ. 2019-12-11T06:37:25.64 0.3 undecidable manual S 256 21.5673 114 0.01 74
IV.RUFI.EHZ. 2019-12-11T06:37:25.66 0.3 undecidable manual S 146 22.5552 113 -0.29 70
IV.VISG.HHZ. 2019-12-11T06:37:25.52 0.3 undecidable manual S 18 21.3675 114 -0.05 73
IV.MOCL.EHZ. 2019-12-11T06:37:23.22 0.3 undecidable manual S 270 13.5753 125 -0.01 75
IV.VISG.HHZ. 2019-12-11T06:37:22.30 0.1 undecidable manual P 18 21.3675 114 0.16 96
IV.FNVD.HHE. 2019-12-11T06:37:22.92 0.1 undecidable manual P 315 25.5522 111 0 98
IV.MPPT.EHZ. 2019-12-11T06:37:22.26 0.1 undecidable manual P 256 21.5673 114 0.09 97
IV.RUFI.EHZ. 2019-12-11T06:37:22.19 0.1 undecidable manual P 146 22.5552 113 -0.17 95
IV.RINC.HHE. 2019-12-11T06:37:22.61 0.6 undecidable manual P 123 24.3534 112 -0.09 48
IV.RONT.HHZ. 2019-12-11T06:37:21.81 0.1 undecidable manual S 102 6.6933 145 0.3 95
IV.SEI.HHZ. 2019-12-11T06:37:20.93 0.1 undecidable manual S 6 5.3946 151 -0.34 94
IV.RONT.HHZ. 2019-12-11T06:37:20.04 0.1 undecidable manual P 102 6.6933 145 0.24 96
IV.MOCL.EHZ. 2019-12-11T06:37:20.97 0.1 undecidable manual P 270 13.5753 125 0.18 96
IV.SEI.HHZ. 2019-12-11T06:37:19.59 0.1 undecidable manual P 6 5.3946 151 -0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOCL.EHN. ML:1.6 0.00042600000000000005 0.2 AML other m 2019-12-11T06:37:23.61
IV.MOCL.EHE. ML:1.5 0.00033999999999999997 0.16 AML other m 2019-12-11T06:37:23.69
IV.MPPT.EHE. ML:1.4 0.0001895 0.22 AML other m 2019-12-11T06:37:26.56
IV.VISG.HHN. ML:1.4 0.0001785 0.46 AML other m 2019-12-11T06:37:26.63
IV.VISG.HHE. ML:1.3 0.00014649999999999998 0.34 AML other m 2019-12-11T06:37:26.83
IV.MPPT.EHN. ML:1.1 0.00009425 0.78 AML other m 2019-12-11T06:37:28.14
IV.OSSC.HHN. ML:1.3 0.000051250000000000006 0.16 AML other m 2019-12-11T06:37:36.32
IV.OSSC.HHE. ML:1.4 0.00006035 0.58 AML other m 2019-12-11T06:37:41.26
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