Earthquake with magnitude of ML 0.9 on date 09-12-2019 and time 04:03:09 (Italy) in region 5 km N Scarperia e San Piero (FI)

A magnitude ML 0.9 earthquake occured in region: 5 km N Scarperia e San Piero (FI), on

  • 09-12-2019 03:03:09 (UTC)
  • 09-12-2019 04:03:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.0070, 11.3130 at 9 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 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)
67 Km E of Lucca (89046 inhabitants)
76 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)
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 0.9 2019-12-09
03:03:09
44.0073 11.313 9 2020-02-28
16:42:26
Bollettino Sismico Italiano INGV 76651271
Reviewed
Rev100
ML 0.9 2019-12-09
03:03:09
44.0098 11.3195 7 2019-12-09
03:18:48
Sala Sismica INGV-Roma 74451431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-09 03:03:09 ± 0.06
Latitude 44.0073 ± 0.0054
Longitude 11.3130 ± 0.0038
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76651271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 587
Semi-minor axis of confidence ellipse (meter) 226
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 202
Circular confidence region, given by single value of horizontal uncertainty (meter) 590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 160
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.05756
Epicentral distance of station farthest from the epicenter (degree) 0.40110
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 76651271
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-19 16:14:28

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 74451431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-09 03:18:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.POPM.HHZ. 2019-12-09T03:03:24.04 0.6 undecidable manual S 276 44.5221 50 0.13 47
IV.LMD.HHZ. 2019-12-09T03:03:20.62 0.6 undecidable manual S 76 32.3454 50 -0.04 49
IV.RUFI.EHZ. 2019-12-09T03:03:18.10 0.6 undecidable manual S 140 24.4533 111 -0.12 49
GU.POPM.HHZ. 2019-12-09T03:03:17.50 0.3 undecidable manual P 276 44.5221 50 -0.17 70
IT.FIE.HGE. 2019-12-09T03:03:17.33 0.6 undecidable manual S 184 22.2555 112 -0.17 49
IV.MPPT.EHZ. 2019-12-09T03:03:16.24 0.6 undecidable manual S 253 18.6702 116 -0.11 50
IV.LMD.HHZ. 2019-12-09T03:03:15.70 0.3 undecidable manual P 76 32.3454 50 -0.09 73
IT.FIE.HGE. 2019-12-09T03:03:14.10 0.3 undecidable manual P 184 22.2555 112 0.13 74
IV.RUFI.EHZ. 2019-12-09T03:03:14.51 0.1 undecidable manual P 140 24.4533 111 0.12 98
IV.MPPT.EHZ. 2019-12-09T03:03:13.45 0.1 undecidable manual P 253 18.6702 116 0.15 98
IV.MOCL.EHZ. 2019-12-09T03:03:13.85 0.1 undecidable manual S 269 10.5783 131 -0.15 100
IV.MOCL.EHZ. 2019-12-09T03:03:12.08 0.1 negative manual P 269 10.5783 131 0.13 100
IV.SEI.HHZ. 2019-12-09T03:03:10.03 3.0 undecidable manual S 6.3936 -2.99 0
IV.SEI.HHZ. 2019-12-09T03:03:08.64 3.0 undecidable manual P 6.3936 -2.74 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOCL.EHN. ML:1.2 0.0002260375 1.7616 AML other m 2019-12-09T03:03:13.91
IV.MOCL.EHE. ML:1.1 0.00016504245 0.1008 AML other m 2019-12-09T03:03:14.05
IV.MPPT.EHE. ML:0.8 0.00005469425999999999 0.1792 AML other m 2019-12-09T03:03:17.05
IV.MPPT.EHN. ML:0.9 0.000060874345 1.7808 AML other m 2019-12-09T03:03:17.06
IV.RUFI.EHN. ML:0.2 0.00001031406 0.2208 AML other m 2019-12-09T03:03:18.29
IV.RUFI.EHE. ML:0.5 0.000019109060000000004 0.1408 AML other m 2019-12-09T03:03:18.59
IV.LMD.HHN. ML:1.0 0.00005081173 0.24 AML other m 2019-12-09T03:03:20.73
IV.LMD.HHE. ML:0.8 0.000029231905 0.28 AML other m 2019-12-09T03:03:22.14
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