Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 09-12-2019 and time 02:38:35 (UTC) in region 5 km N Scarperia e San Piero (FI)

A magnitude ML 2.4 earthquake occured in region: 5 km N Scarperia e San Piero (FI), on

  • 09-12-2019 02:38:35 (UTC)
  • 09-12-2019 03:38:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0070, 11.3150 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 8 18211 41264
Vaglia FI 11 5073 46337
Firenzuola FI 14 4726 51063
Vernio PO 14 6060 57123
Vicchio FI 15 8044 65167
Vaiano PO 16 9895 75062
Cantagallo PO 17 3105 78167
Calenzano FI 20 17489 95656
Castiglione dei Pepoli BO 20 5648 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)
75 Km NW of Arezzo (99543 inhabitants)
76 Km W of Cesena (96758 inhabitants)
77 Km N of Siena (53903 inhabitants)
78 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)
93 Km SE of Carpi (70699 inhabitants)
94 Km E of Massa (69479 inhabitants)
94 Km SE of Reggio nell'Emilia (171345 inhabitants)
95 Km NE of Livorno (159219 inhabitants)
95 Km S of Ferrara (133155 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 2.4 2019-12-09
02:38:35		 44.0067 11.3153 8 2020-02-28
16:42:12		 Bollettino Sismico Italiano INGV 74549701
Reviewed
Rev100 		ML 2.4 2019-12-09
02:38:35		 44.0117 11.3172 8 2019-12-09
03:01:47		 Sala Sismica INGV-Roma 74450611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-09 02:38:35 ± 0.07
Latitude 44.0067 ± 0.0045
Longitude 11.3153 ± 0.0050
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 74549701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 463
Semi-minor axis of confidence ellipse (meter) 252
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 198
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 49
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) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.05666
Epicentral distance of station farthest from the epicenter (degree) 1.01713
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 74549701
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-19 16:46:05

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 42
Type of magnitude ML
Reference to an origin 74450611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-09 03:01:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.GRAM.HHZ. 2019-12-09T02:38:55.87 0.3 undecidable manual P 299 112.8981 50 0.67 53
IV.CSNT.HHZ. 2019-12-09T02:38:55.20 0.6 undecidable manual S 182 59.1963 50 0.27 44
IV.BDI.HHZ. 2019-12-09T02:38:54.27 0.6 undecidable manual S 276 57.6978 50 -0.26 45
IV.BRIS.HHZ. 2019-12-09T02:38:51.23 0.6 undecidable manual S 56 43.3233 50 0.55 43
IV.SSP9.EHZ. 2019-12-09T02:38:50.46 0.6 undecidable manual P 126 81.0522 50 0.16 44
GU.POPM.HHZ. 2019-12-09T02:38:50.91 0.3 undecidable manual S 276 44.7219 50 -0.15 71
IV.ASQU.HHZ. 2019-12-09T02:38:50.97 0.3 undecidable manual S 121 44.4222 50 -0.02 72
IV.SFI.EHZ. 2019-12-09T02:38:50.88 0.3 undecidable manual S 105 43.9227 50 0.03 72
IV.PII.HHZ. 2019-12-09T02:38:48.49 0.3 undecidable manual P 244 70.6737 50 -0.2 66
GU.GSCL.HHZ. 2019-12-09T02:38:48.75 0.3 undecidable manual P 304 69.2751 50 0.27 65
IV.CRMI.HHZ. 2019-12-09T02:38:48.16 0.3 undecidable manual S 229 35.6421 50 -0.47 67
IV.CRE.HHZ. 2019-12-09T02:38:48.46 0.3 undecidable manual P 130 66.6777 50 0.38 64
IV.LMD.HHZ. 2019-12-09T02:38:47.10 0.3 undecidable manual S 76 32.2455 104 -0.42 68
IV.BDI.HHZ. 2019-12-09T02:38:46.32 0.3 undecidable manual P 276 57.6978 50 -0.38 66
IV.CSNT.HHZ. 2019-12-09T02:38:46.61 0.3 undecidable manual P 182 59.1963 50 -0.32 66
IV.IMOL.EHZ. 2019-12-09T02:38:46.54 0.3 undecidable manual P 41 51.8037 50 0.75 58
IV.FIR.HHZ. 2019-12-09T02:38:46.06 0.6 undecidable manual S 191 26.2515 107 0.55 44
IV.ZCCA.HHZ. 2019-12-09T02:38:45.93 0.6 undecidable manual P 325 46.7199 50 0.93 36
IV.SFI.EHZ. 2019-12-09T02:38:44.21 0.3 undecidable manual P 105 43.9227 50 -0.36 67
IV.BRIS.HHZ. 2019-12-09T02:38:44.28 0.3 undecidable manual P 56 43.3233 50 -0.19 70
IV.FNVD.HHZ. 2019-12-09T02:38:44.05 0.3 undecidable manual S 319 23.5542 109 -0.58 65
GU.POPM.HHZ. 2019-12-09T02:38:44.29 0.3 undecidable manual P 276 44.7219 50 -0.4 67
IV.RUFI.EHZ. 2019-12-09T02:38:44.69 0.3 undecidable manual S 140 24.2535 108 -0.19 72
IV.ASQU.HHZ. 2019-12-09T02:38:44.58 0.3 undecidable manual P 121 44.4222 50 -0.07 72
IV.MPPT.EHZ. 2019-12-09T02:38:43.10 0.6 undecidable manual S 253 18.7701 113 0.02 50
IV.CRMI.HHZ. 2019-12-09T02:38:43.06 0.3 undecidable manual P 229 35.6421 50 -0.23 70
IV.MTRZ.HHZ. 2019-12-09T02:38:43.47 0.3 undecidable manual P 14 35.0427 103 0.27 70
IV.LMD.HHZ. 2019-12-09T02:38:42.18 0.3 undecidable manual P 76 32.2455 104 -0.47 67
IV.RUFI.EHZ. 2019-12-09T02:38:41.12 0.1 undecidable manual P 140 24.2535 108 0 100
IV.FIR.HHZ. 2019-12-09T02:38:41.77 0.3 undecidable manual P 191 26.2515 107 0.28 71
IV.MPPT.EHZ. 2019-12-09T02:38:40.28 0.1 undecidable manual P 253 18.7701 113 0.2 97
IV.MOCL.EHZ. 2019-12-09T02:38:40.79 0.3 undecidable manual S 269 10.7781 127 0.14 75
IV.FNVD.HHZ. 2019-12-09T02:38:40.91 0.3 undecidable manual P 319 23.5542 109 -0.07 74
IV.MOCL.EHZ. 2019-12-09T02:38:38.93 0.1 undecidable manual P 269 10.7781 127 0.25 98
IV.SEI.HHZ. 2019-12-09T02:38:36.72 3.0 undecidable manual S 6.2937 -2.82 0
IV.SEI.HHZ. 2019-12-09T02:38:35.38 3.0 undecidable manual P 6.2937 -2.66 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOCL.EHN. ML:2.9 0.011157626 0.1792 AML other m 2019-12-09T02:38:40.89
IV.MOCL.EHE. ML:2.7 0.0072492815 0.0992 AML other m 2019-12-09T02:38:40.93
IV.MPPT.EHE. ML:2.6 0.003020034 0.2192 AML other m 2019-12-09T02:38:43.28
IV.MPPT.EHN. ML:2.6 0.0036640815 0.2608 AML other m 2019-12-09T02:38:43.90
IV.RUFI.EHE. ML:2.1 0.0008311544 0.1616 AML other m 2019-12-09T02:38:45.08
IV.FNVD.HHN. ML:2.6 0.0027533995 0.1408 AML other m 2019-12-09T02:38:45.74
IV.FNVD.HHE. ML:2.5 0.002060417 0.3392 AML other m 2019-12-09T02:38:47.22
IV.LMD.HHN. ML:2.6 0.002041804 0.24 AML other m 2019-12-09T02:38:47.34
IV.LMD.HHE. ML:2.5 0.001371659 0.2416 AML other m 2019-12-09T02:38:48.77
IV.CRMI.HNE. ML:2.6 0.0016078815 0.2608 AML other m 2019-12-09T02:38:48.81
IV.CRMI.HHE. ML:2.2 0.0006110009 0.2608 AML other m 2019-12-09T02:38:48.81
IV.RUFI.EHN. ML:2.2 0.0009022763 0.6 AML other m 2019-12-09T02:38:50.36
GU.POPM.HHN. ML:2.9 0.002584548 0.1984 AML other m 2019-12-09T02:38:51.48
IV.SFI.HNE. ML:2.0 0.000328236 0.16 AML other m 2019-12-09T02:38:51.89
IV.SFI.EHE. ML:2.0 0.00033083105000000003 0.16 AML other m 2019-12-09T02:38:51.90
IV.SFI.EHN. ML:2.0 0.00027587284999999994 0.16 AML other m 2019-12-09T02:38:51.83
IV.SFI.HNN. ML:2.0 0.0002837063 0.1808 AML other m 2019-12-09T02:38:51.91
GU.POPM.HHE. ML:2.8 0.0018150344999999998 0.16 AML other m 2019-12-09T02:38:52.10
IV.MTRZ.HHN. ML:2.3 0.0008875972000000001 0.52 AML other m 2019-12-09T02:38:52.24
IV.MTRZ.HNN. ML:2.3 0.0008105615500000001 0.5184 AML other m 2019-12-09T02:38:52.25
IV.MTRZ.HHE. ML:2.2 0.0007389113000000001 0.4192 AML other m 2019-12-09T02:38:52.43
IV.ASQU.HHN. ML:2.1 0.0003895796 0.28 AML other m 2019-12-09T02:38:52.51
IV.CRMI.HHN. ML:2.3 0.0008214557 0.3792 AML other m 2019-12-09T02:38:52.87
IV.CRMI.HNN. ML:2.7 0.0020689925 0.4208 AML other m 2019-12-09T02:38:52.88
IV.ASQU.HHE. ML:2.0 0.00029198915000000004 0.2 AML other m 2019-12-09T02:38:53.05
IV.MTRZ.HNE. ML:2.2 0.0007081146 0.6496 AML other m 2019-12-09T02:38:53.90
IV.BDI.HHE. ML:2.5 0.0007168271 0.5008 AML other m 2019-12-09T02:38:55.33
IV.CSNT.HHE. ML:2.2 0.00035187855 0.3408 AML other m 2019-12-09T02:38:56.23
IV.BDI.HNE. ML:2.4 0.00062621195 0.2304 AML other m 2019-12-09T02:38:56.82
IV.BDI.HHN. ML:2.6 0.0008936075999999999 0.4608 AML other m 2019-12-09T02:38:56.79
IV.BDI.HNN. ML:2.6 0.0008466846999999999 0.4704 AML other m 2019-12-09T02:38:57.03
IV.CRE.HHE. ML:2.1 0.0002190236 0.24 AML other m 2019-12-09T02:38:58.63
GU.GSCL.HHE. ML:2.4 0.0004380653 0.2608 AML other m 2019-12-09T02:38:59.12
GU.GSCL.HHN. ML:2.4 0.00043755045000000003 0.2992 AML other m 2019-12-09T02:38:59.24
IV.CSNT.HHN. ML:2.4 0.00058258485 0.44 AML other m 2019-12-09T02:38:59.48
IV.PII.HHN. ML:2.6 0.00065513755 0.3408 AML other m 2019-12-09T02:38:59.88
IV.IMOL.HNE. ML:2.4 0.0006858148499999999 0.4592 AML other m 2019-12-09T02:39:00.61
IV.IMOL.HNN. ML:2.3 0.00049441725 0.28 AML other m 2019-12-09T02:39:01.48
IV.CRE.HHN. ML:2.4 0.00045415845 0.3408 AML other m 2019-12-09T02:39:02.11
IV.PII.HHE. ML:2.6 0.0006584695499999999 0.4 AML other m 2019-12-09T02:39:02.46
IV.SSP9.EHE. ML:2.1 0.00015299125 0.5408 AML other m 2019-12-09T02:39:09.12
GU.GRAM.HHE. ML:2.8 0.00046154605000000003 0.2992 AML other m 2019-12-09T02:39:12.55
GU.GRAM.HHN. ML:2.5 0.00027463735 0.2608 AML other m 2019-12-09T02:39:13.10
IV.SSP9.EHN. ML:2.0 0.000146701865 1.2992 AML other m 2019-12-09T02:39:19.25
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