Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 09-12-2019 and time 02:55:35 (UTC) in region 5 km N Scarperia e San Piero (FI)

A magnitude ML 2.1 earthquake occured in region: 5 km N Scarperia e San Piero (FI), on

  • 09-12-2019 02:55:35 (UTC)
  • 09-12-2019 03:55:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0100, 11.3130 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 5 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 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
Calenzano FI 20 17489 101304

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 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)
50 Km SW of Imola (69797 inhabitants)
54 Km S of Bologna (386663 inhabitants)
55 Km SW of Faenza (58541 inhabitants)
63 Km W of Forlì (117913 inhabitants)
68 Km E of Lucca (89046 inhabitants)
76 Km W of Cesena (96758 inhabitants)
76 Km NW of Arezzo (99543 inhabitants)
77 Km N of Siena (53903 inhabitants)
77 Km SE of Modena (184973 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)
94 Km E of Massa (69479 inhabitants)
94 Km SE of Reggio nell'Emilia (171345 inhabitants)
95 Km S of Ferrara (133155 inhabitants)
95 Km NE of Livorno (159219 inhabitants)
97 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 2019-12-09
02:55:35		 44.0102 11.3133 8 2020-02-28
16:42:17		 Bollettino Sismico Italiano INGV 75114141
Reviewed
Rev100 		ML 2.1 2019-12-09
02:55:35		 44.0102 11.3128 8 2019-12-09
03:15:36		 Sala Sismica INGV-Roma 74451271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-09 02:55:35 ± 0.06
Latitude 44.0102 ± 0.0036
Longitude 11.3133 ± 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 75114141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 343
Semi-minor axis of confidence ellipse (meter) 165
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 6
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 50
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 34
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) 0.63672
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 47
Type of magnitude ML
Reference to an origin 74451271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-09 03:15:36

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 47
Type of magnitude ML
Reference to an origin 75114141
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-19 16:16:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BDI.HHZ. 2019-12-09T02:55:54.10 0.3 undecidable manual S 276 57.498 50 -0.07 69
IV.CSNT.HHZ. 2019-12-09T02:55:54.91 0.6 undecidable manual S 182 59.5959 50 0.19 45
IV.OSSC.HHZ. 2019-12-09T02:55:53.45 0.3 undecidable manual S 186 54.2013 50 0.16 69
IV.BRIS.HHZ. 2019-12-09T02:55:51.05 0.3 undecidable manual S 56 43.2234 50 0.71 61
GU.POPM.HHZ. 2019-12-09T02:55:50.55 0.3 undecidable manual S 275 44.5221 50 -0.15 70
IV.ASQU.HHZ. 2019-12-09T02:55:50.75 0.6 undecidable manual S 122 44.8218 50 -0.02 48
IV.SFI.EHZ. 2019-12-09T02:55:50.86 0.3 undecidable manual S 105 44.2224 50 0.26 69
IV.PII.HHZ. 2019-12-09T02:55:48.21 0.3 undecidable manual P 243 70.6737 50 -0.18 66
IV.CRMI.HHZ. 2019-12-09T02:55:48.08 0.3 undecidable manual S 228 35.742 50 -0.27 69
IV.CRE.HHZ. 2019-12-09T02:55:48.08 0.6 undecidable manual P 130 67.0773 50 0.25 44
IV.LMD.HHZ. 2019-12-09T02:55:46.91 0.1 undecidable manual S 76 32.2455 104 -0.35 92
IV.CSNT.HHZ. 2019-12-09T02:55:46.51 0.3 undecidable manual P 182 59.5959 50 -0.17 68
IV.BDI.HHZ. 2019-12-09T02:55:45.97 0.1 undecidable manual P 276 57.498 50 -0.4 87
IV.OSSC.HHZ. 2019-12-09T02:55:45.67 0.1 undecidable manual P 186 54.2013 50 -0.19 91
IV.FIR.HHZ. 2019-12-09T02:55:45.69 0.3 undecidable manual S 190 26.5512 107 0.33 70
IV.ZCCA.HHZ. 2019-12-09T02:55:45.38 0.3 undecidable manual P 325 46.3203 50 0.74 59
IV.SFI.EHZ. 2019-12-09T02:55:44.06 0.3 undecidable manual P 105 44.2224 50 -0.25 69
IV.BRIS.HHZ. 2019-12-09T02:55:44.31 0.3 undecidable manual P 56 43.2234 50 0.15 70
IV.ASQU.HHZ. 2019-12-09T02:55:44.34 0.3 undecidable manual P 122 44.8218 50 -0.06 71
IV.RUFI.EHE. 2019-12-09T02:55:44.54 0.1 undecidable manual S 141 24.6531 108 -0.2 96
GU.POPM.HHZ. 2019-12-09T02:55:44.05 0.1 undecidable manual P 275 44.5221 50 -0.31 90
IV.FNVD.HHZ. 2019-12-09T02:55:43.88 0.3 undecidable manual S 319 23.1546 109 -0.35 70
IT.FIE.HGZ. 2019-12-09T02:55:43.94 0.3 undecidable manual S -0.07 75
IV.MTRZ.HHZ. 2019-12-09T02:55:43.42 0.3 undecidable manual P 15 34.743 50 0.57 64
IV.CRMI.HHZ. 2019-12-09T02:55:42.96 0.3 undecidable manual P 228 35.742 50 -0.05 73
IV.MPPT.EHZ. 2019-12-09T02:55:42.92 0.3 undecidable manual S 252 18.7701 114 0.11 74
IV.LMD.HHZ. 2019-12-09T02:55:41.92 0.1 undecidable manual P 76 32.2455 104 -0.46 90
IV.FIR.HHZ. 2019-12-09T02:55:41.57 0.1 undecidable manual P 190 26.5512 107 0.29 94
IV.MPPT.EHZ. 2019-12-09T02:55:40.02 0.1 positive manual P 252 18.7701 114 0.21 96
IV.FNVD.HHZ. 2019-12-09T02:55:40.51 0.1 undecidable manual P 319 23.1546 109 -0.12 98
IV.MOCL.EHZ. 2019-12-09T02:55:40.45 0.1 undecidable manual S 267 10.5783 128 0.09 100
IT.FIE.HGZ. 2019-12-09T02:55:40.56 0.1 undecidable manual P 0.04 100
IV.RUFI.EHE. 2019-12-09T02:55:40.91 0.1 undecidable manual P 141 24.6531 108 -0.01 100
IV.MOCL.EHZ. 2019-12-09T02:55:38.64 0.1 undecidable manual P 267 10.5783 128 0.25 97
IV.SEI.HHZ. 2019-12-09T02:55:36.30 3.0 undecidable manual S 6.0939 -2.94 0
IV.SEI.HHZ. 2019-12-09T02:55:35.03 3.0 undecidable manual P 6.0939 -2.72 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOCL.EHE. ML:2.2 0.0021083055 0.1008 AML other m 2019-12-09T02:55:40.53
IV.MOCL.EHN. ML:2.4 0.003848551 0.16 AML other m 2019-12-09T02:55:40.78
IV.MPPT.EHE. ML:2.3 0.001621592 0.1792 AML other m 2019-12-09T02:55:43.82
IV.MPPT.EHN. ML:2.3 0.0016125775 0.1616 AML other m 2019-12-09T02:55:43.65
IV.FIR.HNE. ML:2.4 0.001333508 0.1696 AML other m 2019-12-09T02:55:46.53
IV.FIR.HHE. ML:2.4 0.0013452874999999999 0.16 AML other m 2019-12-09T02:55:46.54
IV.FIR.HHN. ML:2.3 0.0011835477500000001 0.2016 AML other m 2019-12-09T02:55:46.85
IV.FIR.HNN. ML:2.3 0.0011515537499999999 0.1904 AML other m 2019-12-09T02:55:46.85
IV.LMD.HHN. ML:2.3 0.00097780885 0.2784 AML other m 2019-12-09T02:55:47.10
IV.CRMI.HHE. ML:1.6 0.0001814493 0.2608 AML other m 2019-12-09T02:55:48.61
IV.CRMI.HNE. ML:2.1 0.0004871127 0.24 AML other m 2019-12-09T02:55:48.63
IV.LMD.HHE. ML:2.0 0.00053648735 0.4 AML other m 2019-12-09T02:55:49.35
IV.SFI.HNN. ML:1.9 0.0002688271 0.0992 AML other m 2019-12-09T02:55:51.22
IV.SFI.EHN. ML:1.9 0.00026815005 0.1008 AML other m 2019-12-09T02:55:51.27
IV.SFI.HNE. ML:2.0 0.00028715055 0.1408 AML other m 2019-12-09T02:55:51.27
GU.POPM.HHN. ML:2.6 0.0012675095000000002 0.1808 AML other m 2019-12-09T02:55:51.44
IV.SFI.EHE. ML:2.0 0.00029144185 0.12 AML other m 2019-12-09T02:55:51.52
IV.BRIS.HHE. ML:2.1 0.0003935118 0.2 AML other m 2019-12-09T02:55:51.76
IV.MTRZ.HNE. ML:1.9 0.0003583599 0.4704 AML other m 2019-12-09T02:55:51.93
IV.BRIS.HHN. ML:2.3 0.0007244493 0.2784 AML other m 2019-12-09T02:55:51.79
GU.POPM.HHE. ML:2.4 0.0008612752 0.2208 AML other m 2019-12-09T02:55:52.13
IV.ASQU.HHN. ML:1.8 0.00017275249999999998 0.3984 AML other m 2019-12-09T02:55:52.26
IV.CRMI.HNN. ML:2.2 0.00063910415 0.3808 AML other m 2019-12-09T02:55:52.73
IV.CRMI.HHN. ML:1.8 0.00025365 0.3808 AML other m 2019-12-09T02:55:52.73
IV.MTRZ.HHN. ML:2.1 0.0004951506 0.3792 AML other m 2019-12-09T02:55:53.47
IV.MTRZ.HNN. ML:2.1 0.0004954990500000001 0.3904 AML other m 2019-12-09T02:55:53.48
IV.BRIS.HNE. ML:1.5 0.00009457952 0.84 AML other m 2019-12-09T02:55:53.68
IV.OSSC.HNN. ML:2.1 0.0002726528 0.3408 AML other m 2019-12-09T02:55:54.53
IV.OSSC.HNE. ML:2.1 0.00030075905 0.1888 AML other m 2019-12-09T02:55:54.71
IV.OSSC.HHN. ML:2.1 0.00027856505 0.1792 AML other m 2019-12-09T02:55:54.80
IV.ASQU.HHE. ML:1.6 0.00011569542 0.3008 AML other m 2019-12-09T02:55:54.73
IV.BDI.HHE. ML:2.3 0.00045858160000000005 1.4992 AML other m 2019-12-09T02:55:54.85
IV.BDI.HNE. ML:2.2 0.00034989590000000006 1.6304 AML other m 2019-12-09T02:55:54.86
IV.BDI.HNN. ML:2.3 0.00041877595 0.24 AML other m 2019-12-09T02:55:55.10
IV.ZCCA.HNN. ML:1.8 0.0001996427 0.7296 AML other m 2019-12-09T02:55:55.50
IV.BRIS.HNN. ML:1.8 0.00021096284999999997 0.8896 AML other m 2019-12-09T02:55:56.11
IV.ZCCA.HNE. ML:1.7 0.0001402027 0.3904 AML other m 2019-12-09T02:55:56.31
IV.CSNT.HHN. ML:2.2 0.0003231221 0.2 AML other m 2019-12-09T02:55:56.43
IV.ZCCA.HHN. ML:1.8 0.00017256135000000001 0.4192 AML other m 2019-12-09T02:55:56.00
IV.BDI.HHN. ML:2.3 0.00043015475 0.4192 AML other m 2019-12-09T02:55:56.58
IV.CSNT.HHE. ML:2.0 0.00021170655 0.1808 AML other m 2019-12-09T02:55:56.83
IV.OSSC.HHE. ML:2.0 0.00022645215000000003 0.44 AML other m 2019-12-09T02:55:57.75
IV.MTRZ.HHE. ML:1.9 0.00035322624999999997 0.48 AML other m 2019-12-09T02:55:58.62
IV.PII.HHN. ML:2.2 0.0002440724 0.36 AML other m 2019-12-09T02:55:59.68
IV.PII.HHE. ML:2.2 0.0002950371 0.3408 AML other m 2019-12-09T02:55:59.86
IV.CRE.HHN. ML:1.9 0.0001315453 1.76 AML other m 2019-12-09T02:55:59.91
IV.CRE.HHE. ML:1.8 0.0001187288 1.6608 AML other m 2019-12-09T02:56:02.12
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
Waveforms Seismic signals in miniseed + resp format Download