Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 14-12-2019 and time 18:12:06 (Italy) in region 6 km N Scarperia e San Piero (FI)

A magnitude ML 0.8 earthquake occured in region: 6 km N Scarperia e San Piero (FI), on

  • 14-12-2019 17:12:06 (UTC)
  • 14-12-2019 18:12:06 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0170, 11.3150 at 8 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
Scarperia e San Piero FI 6 12217 12217
Barberino di Mugello FI 6 10836 23053
Borgo San Lorenzo FI 9 18211 41264
Vaglia FI 12 5073 46337
Firenzuola FI 12 4726 51063
Vernio PO 13 6060 57123
Vicchio FI 15 8044 65167
Vaiano PO 16 9895 75062
Cantagallo PO 17 3105 78167
Castiglione dei Pepoli BO 19 5648 83815

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NE of Prato (191150 inhabitants)
28 Km N of Firenze (382808 inhabitants)
31 Km NE of Scandicci (50609 inhabitants)
33 Km E of Pistoia (90315 inhabitants)
49 Km SW of Imola (69797 inhabitants)
53 Km S of Bologna (386663 inhabitants)
54 Km SW of Faenza (58541 inhabitants)
62 Km W of Forlì (117913 inhabitants)
68 Km E of Lucca (89046 inhabitants)
75 Km W of Cesena (96758 inhabitants)
76 Km NW of Arezzo (99543 inhabitants)
77 Km SE of Modena (184973 inhabitants)
78 Km N of Siena (53903 inhabitants)
80 Km E of Pisa (89158 inhabitants)
84 Km SW of Ravenna (159116 inhabitants)
87 Km E of Viareggio (62467 inhabitants)
92 Km SE of Carpi (70699 inhabitants)
93 Km SE of Reggio nell'Emilia (171345 inhabitants)
94 Km E of Massa (69479 inhabitants)
94 Km S of Ferrara (133155 inhabitants)
96 Km NE of Livorno (159219 inhabitants)
98 Km E of Carrara (63133 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 0.8 2019-12-14
17:12:06		 44.0167 11.3152 8 2019-12-14
17:21:57		 Sala Sismica INGV-Roma 74625481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-14 17:12:06 ± 0.16
Latitude 44.0167 ± 0.0045
Longitude 11.3152 ± 0.0063
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 74625481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 520
Semi-minor axis of confidence ellipse (meter) 196
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 174
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.04856
Epicentral distance of station farthest from the epicenter (degree) 0.24731
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 74625481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-14 17:21:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FNVD.HHZ. 2019-12-14T17:12:14.64 0.6 undecidable manual S 318 22.755 109 -0.04 50
IV.VISG.HHZ. 2019-12-14T17:12:14.40 0.3 undecidable manual S 26 21.3675 111 0.17 73
IV.MPPT.EHZ. 2019-12-14T17:12:13.62 0.6 undecidable manual S 250 19.0698 113 0.11 49
IV.FNVD.HHZ. 2019-12-14T17:12:11.16 0.6 undecidable manual P 318 22.755 109 0.02 50
IV.RONT.HHZ. 2019-12-14T17:12:11.00 0.3 undecidable manual S 105 9.7791 130 0.3 72
IV.RINC.HHZ. 2019-12-14T17:12:11.66 0.3 undecidable manual P 122 27.4503 106 -0.38 69
IV.VISG.HHZ. 2019-12-14T17:12:10.95 0.3 undecidable manual P 26 21.3675 111 0.06 74
IV.MPPT.EHZ. 2019-12-14T17:12:10.51 0.1 undecidable manual P 250 19.0698 113 0.04 100
IV.SEI.HHZ. 2019-12-14T17:12:09.44 0.3 undecidable manual S 40 5.3946 146 -0.24 73
IV.SEI.HHZ. 2019-12-14T17:12:08.12 0.1 undecidable manual P 40 5.3946 146 -0.14 100
IV.RONT.HHZ. 2019-12-14T17:12:08.96 0.1 positive manual P 105 9.7791 130 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SEI.HHE. ML:0.0 0.00030232005 0.2432 AML other m 2019-12-14T17:12:10.57
IV.SEI.HHN. ML:0.0 0.0004760656 0.2304 AML other m 2019-12-14T17:12:09.61
IV.MPPT.EHE. ML:0.8 0.00004714207 1.344 AML other m 2019-12-14T17:12:20.35
IV.MPPT.EHN. ML:0.6 0.000036811615000000006 0.3072 AML other m 2019-12-14T17:12:13.91
IV.VISG.HHE. ML:1.0 0.000069627645 0.3712 AML other m 2019-12-14T17:12:15.39
IV.VISG.HHN. ML:0.9 0.000061949725 0.2048 AML other m 2019-12-14T17:12:15.12
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