Earthquake with magnitude of ML 1.4 on date 08-12-2019 and time 19:55:54 (UTC) in region 6 km N Scarperia e San Piero (FI)

A magnitude ML 1.4 earthquake occured in region: 6 km N Scarperia e San Piero (FI), on

  • 08-12-2019 19:55:54 (UTC)
  • 08-12-2019 20:55:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.01, 11.32 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.

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 13 4726 51063
Vernio PO 14 6060 57123
Vicchio FI 15 8044 65167
Vaiano PO 16 9895 75062
Cantagallo PO 17 3105 78167
Castiglione dei Pepoli BO 20 5648 83815

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NE of Prato (191150 inhabitants)
27 Km N of Firenze (382808 inhabitants)
30 Km NE of Scandicci (50609 inhabitants)
33 Km E of Pistoia (90315 inhabitants)
49 Km SW of Imola (69797 inhabitants)
54 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)
77 Km N of Siena (53903 inhabitants)
81 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)
94 Km SE of Reggio nell'Emilia (171345 inhabitants)
94 Km E of Massa (69479 inhabitants)
95 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
Rev 1000 ML 1.4 2019-12-08
19:55:54
44.01 11.32 8 2020-02-28
16:42:25
Bollettino Sismico Italiano INGV 76604461
Rev 100 ML 1.4 2019-12-08
19:55:54
44.04 11.34 2 2019-12-08
20:15:49
Sala Sismica INGV-Roma 74441311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-08 19:55:54 ± 0.05
Latitude 44.01 ± 0.00
Longitude 11.32 ± 0.00
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76604461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 395
Semi-minor axis of confidence ellipse (meter) 159
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 183
Circular confidence region, given by single value of horizontal uncertainty (meter) 400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.05126
Epicentral distance of station farthest from the epicenter (degree) 0.40469
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 76604461
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-17 16:22:49

ML:1.4

Field Value
Value 1.4
Uncertainty 0.5
Num. used stations 8
Type of magnitude ML
Reference to an origin 74441311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-08 20:15:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SFI.EHN. 2019-12-08T19:56:10.11 0.6 undecidable manual S 106 0.3957 50 0.43 45
GU.POPM.HHE. 2019-12-08T19:56:09.80 0.3 undecidable manual S 275 0.4047 50 -0.14 71
IV.CRMI.HNN. 2019-12-08T19:56:07.53 0.6 undecidable manual S 228 0.3265 50 -0.09 49
IV.LMD.HHZ. 2019-12-08T19:56:06.14 0.6 undecidable manual S 77 0.2869 104 -0.11 49
IT.FIE.HGZ. 2019-12-08T19:56:03.14 0.6 undecidable manual S 185 0.2059 110 -0.12 50
IV.ASQU.HHE. 2019-12-08T19:56:03.54 0.6 undecidable manual P 122 0.402 50 0.02 49
IV.RUFI.EHZ. 2019-12-08T19:56:03.71 0.3 undecidable manual S 142 0.2221 108 -0.15 74
IV.SFI.EHN. 2019-12-08T19:56:03.43 0.1 undecidable manual P 106 0.3957 50 0.02 98
GU.POPM.HHE. 2019-12-08T19:56:03.28 0.3 undecidable manual P 275 0.4047 50 -0.28 69
IV.BRIS.HHE. 2019-12-08T19:56:03.65 0.6 undecidable manual P 56 0.3849 50 0.42 45
IV.CRMI.HNN. 2019-12-08T19:56:02.18 1.0 undecidable manual P 228 0.3265 50 -0.04 25
IV.MPPT.EHZ. 2019-12-08T19:56:02.02 0.6 undecidable manual S 251 0.1727 113 -0.05 51
IV.MTRZ.HNZ. 2019-12-08T19:56:01.79 0.6 undecidable manual P 14 0.3094 103 -0.13 49
IV.LMD.HHZ. 2019-12-08T19:56:01.16 0.1 undecidable manual P 77 0.2869 104 -0.28 95
IV.RUFI.EHZ. 2019-12-08T19:56:00.13 0.1 positive manual P 142 0.2221 108 0.08 100
IV.MPPT.EHZ. 2019-12-08T19:55:59.10 0.3 undecidable manual P 251 0.1727 113 0.09 76
IT.FIE.HGZ. 2019-12-08T19:55:59.75 0.3 undecidable manual P 185 0.2059 110 0.05 76
IV.MOCL.EHZ. 2019-12-08T19:55:59.67 0.3 undecidable manual S 266 0.0989 126 0.09 77
IV.MOCL.EHZ. 2019-12-08T19:55:57.83 0.1 undecidable manual P 266 0.0989 126 0.25 99
IV.SEI.HHE. 2019-12-08T19:55:55.76 3.0 undecidable manual S 0.0513 -2.52 0
IV.SEI.HHE. 2019-12-08T19:55:54.34 3.0 undecidable manual P 0.0513 -2.48 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LMD.HHN. ML:0 6.9610375E-5 0.2304 AML other m 2019-12-08T19:56:06.32
IV.FIR.HNE. ML:1.6 0.0002253938 0.1024 AML other m 2019-12-08T19:56:06.41
IV.LMD.HHE. ML:0 4.5993635E-5 0.32 AML other m 2019-12-08T19:56:07.35
IV.FIR.HHE. ML:1.6 0.0002373354 0.0512 AML other m 2019-12-08T19:56:09.41
IV.RUFI.EHE. ML:0.7 2.915895E-5 0.8448 AML other m 2019-12-08T19:56:09.40
IV.FIR.HNN. ML:1.8 0.00034540435 0.0896 AML other m 2019-12-08T19:56:10.18
IV.RUFI.EHN. ML:0.7 3.0497955E-5 1.5232 AML other m 2019-12-08T19:56:12.17
IV.FIR.HHN. ML:1.8 0.0003660421 1.9232 AML other m 2019-12-08T19:56:13.98
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download