Earthquake with magnitude of ML 1.5 on date 09-12-2019 and time 07:19:07 (Italy) in region 4 km N Scarperia e San Piero (FI)

A magnitude ML 1.5 earthquake occured in region: 4 km N Scarperia e San Piero (FI), on

  • 09-12-2019 06:19:07 (UTC)
  • 09-12-2019 07:19:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44, 11.32 at 6 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 4 12217 12217
Barberino di Mugello FI 6 10836 23053
Borgo San Lorenzo FI 8 18211 41264
Vaglia FI 11 5073 46337
Vernio PO 14 6060 52397
Vicchio FI 14 8044 60441
Firenzuola FI 14 4726 65167
Vaiano PO 16 9895 75062
Cantagallo PO 17 3105 78167
Calenzano FI 19 17489 95656

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NE of Prato (191150 inhabitants)
26 Km N of Firenze (382808 inhabitants)
29 Km NE of Scandicci (50609 inhabitants)
33 Km E of Pistoia (90315 inhabitants)
51 Km SW of Imola (69797 inhabitants)
55 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)
75 Km NW of Arezzo (99543 inhabitants)
76 Km W of Cesena (96758 inhabitants)
76 Km N of Siena (53903 inhabitants)
78 Km SE of Modena (184973 inhabitants)
80 Km E of Pisa (89158 inhabitants)
85 Km SW of Ravenna (159116 inhabitants)
87 Km E of Viareggio (62467 inhabitants)
94 Km SE of Carpi (70699 inhabitants)
94 Km E of Massa (69479 inhabitants)
95 Km NE of Livorno (159219 inhabitants)
95 Km SE of Reggio nell'Emilia (171345 inhabitants)
96 Km S of Ferrara (133155 inhabitants)
98 Km E of Carrara (63133 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.5 2019-12-09
06:19:07
44 11.32 6 2019-12-09
06:32:54
Sala Sismica INGV-Roma 74467031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-09 06:19:07 ± 0.09
Latitude 44.00 ± 0.01
Longitude 11.32 ± 0.01
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 74467031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 709
Semi-minor axis of confidence ellipse (meter) 469
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 199
Circular confidence region, given by single value of horizontal uncertainty (meter) 710
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.5261
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 74467031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-09 06:32:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.PZZ.HHZ. 2019-12-09T06:20:43.19 3.0 undecidable manual Sn 6.17 0
CR.STON.BHZ. 2019-12-09T06:20:26.30 3.0 undecidable manual Pn 4.28 0
GU.BLANC.HHZ. 2019-12-09T06:20:16.65 3.0 undecidable manual Pg 10.75 0
IV.MNTT.EHZ. 2019-12-09T06:20:13.95 3.0 undecidable manual Sg 5.05 0
IV.ZONE.HHZ. 2019-12-09T06:20:12.33 3.0 undecidable manual Sg 2.56 0
IV.MAGA.HHZ. 2019-12-09T06:20:06.75 3.0 undecidable manual Sg -0.1 0
TV.SF04.EHZ. 2019-12-09T06:19:30.10 3.0 positive manual P -2.76 0
IV.CPGN.EHZ. 2019-12-09T06:19:24.52 3.0 undecidable manual P -0.35 0
IV.SFI.HNE. 2019-12-09T06:19:22.84 0.1 undecidable manual S 104 0.3939 50 0.13 92
IV.ASQU.HHN. 2019-12-09T06:19:22.86 0.1 undecidable manual S 121 0.3975 50 0.06 93
IV.CSNT.HHZ. 2019-12-09T06:19:18.30 0.1 undecidable manual P 182 0.5261 50 -0.26 87
IV.LMD.HHZ. 2019-12-09T06:19:18.66 0.1 undecidable manual S 74 0.2923 101 -0.34 90
IV.ZCCA.HHN. 2019-12-09T06:19:17.28 0.6 undecidable manual P 325 0.4272 50 0.43 43
IV.OSSC.HHE. 2019-12-09T06:19:17.63 0.3 undecidable manual P 186 0.4784 50 -0.1 68
IV.ASQU.HHN. 2019-12-09T06:19:16.17 0.3 undecidable manual P 121 0.3975 50 -0.17 68
IV.RUFI.EHZ. 2019-12-09T06:19:16.25 0.1 undecidable manual S 139 0.214 105 0.2 94
IV.SFI.HNE. 2019-12-09T06:19:16.22 0.3 undecidable manual P 104 0.3939 50 -0.07 70
IV.MTRZ.HNN. 2019-12-09T06:19:15.69 0.1 undecidable manual P 14 0.3229 100 0.87 74
IV.MPPT.EHZ. 2019-12-09T06:19:14.35 0.1 undecidable manual S 255 0.1673 109 0.01 99
IV.LMD.HHZ. 2019-12-09T06:19:13.74 0.6 negative manual P 74 0.2923 101 -0.41 44
IV.RUFI.EHZ. 2019-12-09T06:19:12.64 0.3 undecidable manual P 139 0.214 105 0.19 71
IV.MOCL.EHZ. 2019-12-09T06:19:11.86 0.1 undecidable manual S 273 0.0971 121 0 100
IV.FNVD.HHZ. 2019-12-09T06:19:11.89 0.1 undecidable manual P 321 0.2176 105 -0.64 83
IV.MPPT.EHZ. 2019-12-09T06:19:11.53 0.1 positive manual P 255 0.1673 109 0.07 97
IV.MOCL.EHZ. 2019-12-09T06:19:10.11 0.1 undecidable manual P 273 0.0971 121 0.08 99
IV.SEI.HHZ. 2019-12-09T06:19:07.84 3.0 undecidable manual S 0.063 -2.97 0
IV.SEI.HHZ. 2019-12-09T06:19:06.55 3.0 undecidable manual P 0.063 -2.87 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOCL.EHN. ML:1.9 0.00123 1.52 AML other m 2019-12-09T06:19:11.16
IV.MOCL.EHE. ML:1.7 0.000775 0.1 AML other m 2019-12-09T06:19:11.96
IV.MPPT.EHE. ML:1.6 0.0003045 0.2 AML other m 2019-12-09T06:19:15.24
IV.MPPT.EHN. ML:1.6 0.0003115 0.2 AML other m 2019-12-09T06:19:15.06
IV.RUFI.EHE. ML:1.2 9.285E-5 0.42 AML other m 2019-12-09T06:19:17.48
IV.LMD.HHN. ML:1.6 0.000161 0.42 AML other m 2019-12-09T06:19:19.34
IV.LMD.HHE. ML:1.5 0.00014135 0.52 AML other m 2019-12-09T06:19:20.68
IV.RUFI.EHN. ML:1.1 9.23E-5 0.42 AML other m 2019-12-09T06:19:25.47
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