Earthquake with magnitude of ML 1.4 on date 08-12-2019 and time 21:22:45 (Italy) in region 8 km N Scarperia e San Piero (FI)

A magnitude ML 1.4 earthquake occured in region: 8 km N Scarperia e San Piero (FI), on

  • 08-12-2019 20:22:45 (UTC)
  • 08-12-2019 21:22:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.03, 11.35 at 0 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 8 12217 12217
Borgo San Lorenzo FI 9 18211 30428
Barberino di Mugello FI 9 10836 41264
Firenzuola FI 10 4726 45990
Vicchio FI 15 8044 54034
Vaglia FI 15 5073 59107
Vernio PO 15 6060 65167
Palazzuolo sul Senio FI 18 1154 66321
Cantagallo PO 19 3105 69426
Vaiano PO 19 9895 79321
Castiglione dei Pepoli BO 20 5648 84969

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NE of Prato (191150 inhabitants)
30 Km N of Firenze (382808 inhabitants)
33 Km NE of Scandicci (50609 inhabitants)
36 Km E of Pistoia (90315 inhabitants)
46 Km SW of Imola (69797 inhabitants)
51 Km S of Bologna (386663 inhabitants)
51 Km SW of Faenza (58541 inhabitants)
59 Km W of Forlì (117913 inhabitants)
71 Km E of Lucca (89046 inhabitants)
73 Km W of Cesena (96758 inhabitants)
76 Km SE of Modena (184973 inhabitants)
76 Km NW of Arezzo (99543 inhabitants)
80 Km N of Siena (53903 inhabitants)
80 Km SW of Ravenna (159116 inhabitants)
84 Km E of Pisa (89158 inhabitants)
90 Km E of Viareggio (62467 inhabitants)
91 Km SE of Carpi (70699 inhabitants)
92 Km S of Ferrara (133155 inhabitants)
93 Km SE of Reggio nell'Emilia (171345 inhabitants)
96 Km E of Massa (69479 inhabitants)
98 Km W of Rimini (147750 inhabitants)
99 Km NE of Livorno (159219 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 1.4 2019-12-08
20:22:45
44.03 11.35 0 2019-12-08
20:42:36
Sala Sismica INGV-Roma 74441781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-08 20:22:45 ± 0.09
Latitude 44.03 ± 0.00
Longitude 11.35 ± 0.01
Depth (km) 0 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 74441781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 560
Semi-minor axis of confidence ellipse (meter) 490
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 135
Circular confidence region, given by single value of horizontal uncertainty (meter) 560
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 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.02248
Epicentral distance of station farthest from the epicenter (degree) 0.42358
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 74441781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-08 20:42:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.POPM.HHZ. 2019-12-08T20:22:54.82 1.0 undecidable manual P 272 0.4236 90 -0.1 24
IV.ZCCA.HNE. 2019-12-08T20:22:54.80 1.0 undecidable manual P 320 0.4128 90 0.11 24
IV.RUFI.EHZ. 2019-12-08T20:22:54.00 0.6 undecidable manual S 149 0.2284 90 -0.31 47
IT.FIE.HGZ. 2019-12-08T20:22:54.22 1.0 undecidable manual S 189 0.2293 90 -0.13 24
IV.CRMI.HHZ. 2019-12-08T20:22:53.37 1.0 undecidable manual P 228 0.3552 90 -0.05 24
IV.BRIS.HNZ. 2019-12-08T20:22:53.54 1.0 undecidable manual P 58 0.357 90 0.1 24
IV.FNVD.HHZ. 2019-12-08T20:22:53.61 1.0 undecidable manual S 310 0.2086 90 0.06 25
IV.MPPT.EHZ. 2019-12-08T20:22:52.83 1.0 undecidable manual S 248 0.1988 90 -0.35 23
IV.MTRZ.HHE. 2019-12-08T20:22:51.76 1.0 undecidable manual P 11 0.2842 90 -0.07 24
IV.FIR.HNZ. 2019-12-08T20:22:51.36 1.0 undecidable manual P 194 0.268 90 -0.1 24
IV.LMD.HHZ. 2019-12-08T20:22:51.92 0.3 negative manual P 80 0.2626 90 0.56 65
IV.RUFI.EHZ. 2019-12-08T20:22:50.82 0.6 undecidable manual P 149 0.2284 90 0.23 48
IT.FIE.HGZ. 2019-12-08T20:22:50.47 0.6 undecidable manual P 189 0.2293 90 -0.15 48
IV.MOCL.EHZ. 2019-12-08T20:22:50.40 0.6 undecidable manual S 256 0.1223 90 0.18 49
IV.MPPT.EHZ. 2019-12-08T20:22:49.92 0.1 positive manual P 248 0.1988 90 -0.01 100
IV.FNVD.HHZ. 2019-12-08T20:22:49.93 1.0 undecidable manual P 310 0.2086 90 -0.22 24
IV.MOCL.EHZ. 2019-12-08T20:22:48.56 0.3 undecidable manual P 256 0.1223 90 0.34 71
IV.SEI.HHZ. 2019-12-08T20:22:46.60 0.6 undecidable manual S 24 0.0225 93 0.24 49
IV.SEI.HHZ. 2019-12-08T20:22:45.12 0.3 undecidable manual P 24 0.0225 93 -0.88 60
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SEI.HHE. ML:0 0.0015062125 0.3072 AML other m 2019-12-08T20:22:46.71
IV.SEI.HHN. ML:0 0.0029986105 0.448 AML other m 2019-12-08T20:22:47.73
IV.MOCL.EHE. ML:1.6 0.0006169832 0.1024 AML other m 2019-12-08T20:22:50.52
IV.MOCL.EHN. ML:1.8 0.00096823345 0.1664 AML other m 2019-12-08T20:22:50.71
IV.MPPT.EHE. ML:1.3 0.0001672578 0.2048 AML other m 2019-12-08T20:22:53.44
IV.MPPT.EHN. ML:1.4 0.00020287775 0.256 AML other m 2019-12-08T20:22:53.82
IV.RUFI.EHE. ML:0.8 3.88286375E-5 0.2688 AML other m 2019-12-08T20:22:56.09
IV.RUFI.EHN. ML:1 5.850345E-5 1.728 AML other m 2019-12-08T20:22:54.46
IV.LMD.HHE. ML:1.2 8.588826E-5 0.2816 AML other m 2019-12-08T20:22:58.44
IV.LMD.HHN. ML:1.4 0.00013730255 0.2432 AML other m 2019-12-08T20:22:57.02
IV.CRMI.HNE. ML:1.4 8.824203E-5 0.256 AML other m 2019-12-08T20:22:58.51
IV.CRMI.HNN. ML:1.5 0.00011441385 0.3968 AML other m 2019-12-08T20:23:02.44
IV.CRMI.HHN. ML:1.2 5.268635E-5 0.3968 AML other m 2019-12-08T20:23:02.23
GU.POPM.HHE. ML:1.5 9.5809715E-5 0.1792 AML other m 2019-12-08T20:23:01.19
GU.POPM.HHN. ML:1.8 0.0001690083 0.1536 AML other m 2019-12-08T20:23:01.05
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