Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 08-12-2019 and time 21:04:41 (UTC) in region 6 km N Scarperia e San Piero (FI)

A magnitude ML 2.1 earthquake occured in region: 6 km N Scarperia e San Piero (FI), on

  • 08-12-2019 21:04:41 (UTC)
  • 08-12-2019 22:04:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0150, 11.3160 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.

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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 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 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)
30 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)
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
Bulletin
Rev1000 		ML 2.1 2019-12-08
21:04:41		 44.0153 11.3163 8 2020-02-28
16:42:21		 Bollettino Sismico Italiano INGV 75940431
Reviewed
Rev100 		ML 2.1 2019-12-08
21:04:41		 44.0262 11.3327 5 2019-12-08
21:19:43		 Sala Sismica INGV-Roma 74442081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-08 21:04:41 ± 0.06
Latitude 44.0153 ± 0.0036
Longitude 11.3163 ± 0.0038
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 75940431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 360
Semi-minor axis of confidence ellipse (meter) 288
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 203
Circular confidence region, given by single value of horizontal uncertainty (meter) 360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 57
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.54229
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 75940431
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-17 16:43:45

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 74442081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-08 21:19:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CERA.HHZ. 2019-12-08T21:06:13.78 3.0 undecidable manual Sg 3.86 0
IV.IMI.HHZ. 2019-12-08T21:05:54.59 3.0 undecidable manual Sn 2.15 0
IV.LRP.EHZ. 2019-12-08T21:05:23.80 3.0 undecidable manual Pn -1.59 0
IV.CSNT.HHZ. 2019-12-08T21:05:01.04 0.6 undecidable manual S 182 60.1953 50 0.06 46
IV.OSSC.HHZ. 2019-12-08T21:04:59.81 0.6 undecidable manual S 186 54.8007 50 0.26 45
IV.BRIS.HNE. 2019-12-08T21:04:57.24 0.6 undecidable manual S 57 42.7239 50 0.93 36
IV.VENL.HNZ. 2019-12-08T21:04:57.60 3.0 negative manual P -1.72 0
IV.ASQU.HHZ. 2019-12-08T21:04:57.04 0.6 undecidable manual S 123 44.9217 50 0.14 47
GU.POPM.HHZ. 2019-12-08T21:04:56.76 0.6 undecidable manual S 274 44.7219 50 -0.1 47
IV.SFI.HNZ. 2019-12-08T21:04:56.90 0.1 undecidable manual S 106 44.1225 50 0.21 92
IV.CRMI.HHZ. 2019-12-08T21:04:54.43 0.6 undecidable manual S 228 36.3414 50 -0.18 47
IV.LMD.HHZ. 2019-12-08T21:04:53.02 0.1 undecidable manual S 77 31.9458 104 -0.2 94
IV.CSNT.HHZ. 2019-12-08T21:04:52.74 0.1 undecidable manual P 182 60.1953 50 -0.13 91
IV.FIR.HNN. 2019-12-08T21:04:52.35 0.6 undecidable manual S 190 27.1506 107 0.72 41
IV.OSSC.HHZ. 2019-12-08T21:04:51.94 0.1 negative manual P 186 54.8007 50 -0.11 92
IV.BLLA.EHZ. 2019-12-08T21:04:51.98 3.0 positive manual P 1.09 0
IV.SFI.HNZ. 2019-12-08T21:04:50.09 0.1 undecidable manual P 106 44.1225 50 -0.3 90
IV.ASQU.HHZ. 2019-12-08T21:04:50.36 0.3 undecidable manual P 123 44.9217 50 -0.16 70
IV.RUFI.EHE. 2019-12-08T21:04:50.64 0.1 undecidable manual S 142 24.9528 108 -0.28 94
GU.POPM.HHZ. 2019-12-08T21:04:50.18 0.1 positive manual P 274 44.7219 50 -0.31 90
IV.BRIS.HNE. 2019-12-08T21:04:50.38 0.3 undecidable manual P 57 42.7239 50 0.2 69
IV.FNVD.HHZ. 2019-12-08T21:04:49.88 0.1 undecidable manual S 318 22.8549 109 -0.34 93
IV.CRMI.HHZ. 2019-12-08T21:04:49.07 0.1 undecidable manual P 228 36.3414 50 -0.12 95
IT.FIE.HGZ. 2019-12-08T21:04:49.93 3.0 undecidable manual S -0.41 0
IV.MTRZ.HHN. 2019-12-08T21:04:49.38 0.1 undecidable manual P 15 34.1436 103 0.56 86
IV.MPPT.EHZ. 2019-12-08T21:04:48.98 0.1 undecidable manual S 251 19.1697 113 -0.03 100
IV.LMD.HHZ. 2019-12-08T21:04:48.08 0.1 undecidable manual P 77 31.9458 104 -0.32 92
IV.FIR.HNN. 2019-12-08T21:04:47.65 0.1 undecidable manual P 190 27.1506 107 0.17 96
IV.RUFI.EHE. 2019-12-08T21:04:47.05 0.1 positive manual P 142 24.9528 108 -0.02 99
IV.MPPT.EHZ. 2019-12-08T21:04:46.12 0.1 positive manual P 251 19.1697 113 0.16 97
IT.FIE.HGZ. 2019-12-08T21:04:46.72 3.0 undecidable manual P 0.05 0
IV.MOCL.EHZ. 2019-12-08T21:04:46.59 0.1 undecidable manual S 264 10.878 127 0.09 100
IV.FNVD.HHZ. 2019-12-08T21:04:46.66 0.1 undecidable manual P 318 22.8549 109 0 100
IV.MOCL.EHZ. 2019-12-08T21:04:44.78 0.1 negative manual P 264 10.878 127 0.27 96
IV.SEI.HHZ. 2019-12-08T21:04:42.70 3.0 undecidable manual S 5.4945 -2.49 0
IV.SEI.HHZ. 2019-12-08T21:04:41.25 3.0 positive manual P 5.4945 -2.51 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOCL.EHN. ML:2.3 0.0029066515 0.192 AML other m 2019-12-08T21:04:46.69
IV.MOCL.EHE. ML:2.2 0.0019729995 0.2944 AML other m 2019-12-08T21:04:46.89
IV.MPPT.EHE. ML:2.1 0.0009636692 0.1408 AML other m 2019-12-08T21:04:49.91
IV.MPPT.EHN. ML:2.2 0.0013626775 0.1408 AML other m 2019-12-08T21:04:49.77
IV.FNVD.HHE. ML:2.0 0.0006577402 0.1536 AML other m 2019-12-08T21:04:51.15
IV.FNVD.HHN. ML:2.4 0.001637896 0.2816 AML other m 2019-12-08T21:04:51.78
IV.LMD.HHN. ML:2.4 0.001089575 0.256 AML other m 2019-12-08T21:04:53.36
IV.LMD.HHE. ML:2.0 0.00051594345 0.1536 AML other m 2019-12-08T21:04:54.21
IV.CRMI.HNE. ML:2.1 0.00047083635000000004 0.256 AML other m 2019-12-08T21:04:54.86
IV.CRMI.HHE. ML:1.6 0.00014244655 0.384 AML other m 2019-12-08T21:04:54.86
GU.POPM.HHN. ML:2.6 0.0012228529999999999 0.1792 AML other m 2019-12-08T21:04:57.37
IV.ASQU.HHE. ML:1.5 0.000101333625 0.192 AML other m 2019-12-08T21:04:58.00
GU.POPM.HHE. ML:2.4 0.00082532465 0.192 AML other m 2019-12-08T21:04:58.24
IV.ASQU.HHN. ML:1.5 0.000102925575 0.2688 AML other m 2019-12-08T21:04:59.09
IV.OSSC.HNN. ML:2.1 0.00029161345 0.32 AML other m 2019-12-08T21:05:00.63
IV.OSSC.HNE. ML:2.1 0.00028586835 0.1536 AML other m 2019-12-08T21:05:00.88
IV.OSSC.HHN. ML:2.1 0.0002897115 0.1536 AML other m 2019-12-08T21:05:00.88
IV.OSSC.HHE. ML:2.1 0.000280074 0.1408 AML other m 2019-12-08T21:05:00.92
IV.CSNT.HHE. ML:1.9 0.00017 1.64 AML other m 2019-12-08T21:05:01.17
IV.CSNT.HHN. ML:2.0 0.00021765509999999998 0.2304 AML other m 2019-12-08T21:05:02.52
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