Earthquake with magnitude of ML 1.0 on date 08-12-2019 and time 20:50:08 (Italy) in region 8 km N Scarperia e San Piero (FI)

A magnitude ML 1.0 earthquake occured in region: 8 km N Scarperia e San Piero (FI), on

  • 08-12-2019 19:50:08 (UTC)
  • 08-12-2019 20:50:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.04, 11.34 at 1 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
Barberino di Mugello FI 9 10836 23053
Firenzuola FI 9 4726 27779
Borgo San Lorenzo FI 10 18211 45990
Vernio PO 15 6060 52050
Vicchio FI 15 8044 60094
Vaglia FI 15 5073 65167
Palazzuolo sul Senio FI 19 1154 66321
Cantagallo PO 19 3105 69426
Castiglione dei Pepoli BO 19 5648 75074
Vaiano PO 19 9895 84969

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NE of Prato (191150 inhabitants)
31 Km N of Firenze (382808 inhabitants)
34 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)
60 Km W of Forlì (117913 inhabitants)
71 Km E of Lucca (89046 inhabitants)
73 Km W of Cesena (96758 inhabitants)
75 Km SE of Modena (184973 inhabitants)
77 Km NW of Arezzo (99543 inhabitants)
80 Km N of Siena (53903 inhabitants)
80 Km SW of Ravenna (159116 inhabitants)
83 Km E of Pisa (89158 inhabitants)
89 Km E of Viareggio (62467 inhabitants)
90 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)
100 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 1.0 2019-12-08
19:50:08
44.04 11.34 1 2019-12-08
20:05:18
Sala Sismica INGV-Roma 74441151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-08 19:50:08 ± 0.13
Latitude 44.04 ± 0.01
Longitude 11.34 ± 0.01
Depth (km) 1 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 74441151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 545
Semi-minor axis of confidence ellipse (meter) 441
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 175
Circular confidence region, given by single value of horizontal uncertainty (meter) 540
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 58
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.01979
Epicentral distance of station farthest from the epicenter (degree) 0.41998
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 74441151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-08 20:05:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SFI.EHZ. 2019-12-08T19:50:23.38 0.6 undecidable manual S 110 0.3876 91 0.26 47
GU.POPM.HHZ. 2019-12-08T19:50:17.44 1.0 undecidable manual P 271 0.42 91 -0.11 24
IV.ZCCA.HHE. 2019-12-08T19:50:17.19 1.0 undecidable manual P 320 0.4074 91 -0.08 24
IV.RUFI.EHZ. 2019-12-08T19:50:17.10 0.3 undecidable manual S 149 0.2338 92 -0.12 75
IV.SFI.EHZ. 2019-12-08T19:50:16.37 1.0 undecidable manual P 110 0.3876 91 -0.45 23
IV.BRIS.HHZ. 2019-12-08T19:50:16.18 1.0 undecidable manual P 58 0.357 91 0.03 25
IV.MPPT.EHZ. 2019-12-08T19:50:15.41 0.3 undecidable manual S 246 0.1979 92 -0.42 71
IV.LMD.HHE. 2019-12-08T19:50:14.17 1.0 undecidable manual P 81 0.2653 92 0.06 25
IV.MTRZ.HNE. 2019-12-08T19:50:14.20 1.0 undecidable manual P 12 0.2806 92 -0.25 24
IT.FIE.HGZ. 2019-12-08T19:50:13.15 1.0 undecidable manual P 188 0.2338 92 -0.25 24
IV.RUFI.EHZ. 2019-12-08T19:50:13.52 0.1 positive manual P 149 0.2338 92 0.12 100
IV.MOCL.EHZ. 2019-12-08T19:50:13.04 0.3 undecidable manual S 254 0.1205 94 0.19 75
IV.MPPT.EHZ. 2019-12-08T19:50:12.63 0.3 negative manual P 246 0.1979 92 0.03 77
IV.MOCL.EHZ. 2019-12-08T19:50:11.24 0.1 negative manual P 254 0.1205 94 0.36 97
IV.SEI.HHZ. 2019-12-08T19:50:09.20 0.6 undecidable manual S 38 0.0198 113 0.16 52
IV.SEI.HHZ. 2019-12-08T19:50:07.79 1.0 undecidable manual P 38 0.0198 113 -0.9 20
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOCL.EHE. ML:1.3 0.00029746885 0.1024 AML other m 2019-12-08T19:50:13.16
IV.MOCL.EHN. ML:1.5 0.0004145238 0.1664 AML other m 2019-12-08T19:50:13.36
IV.MPPT.EHE. ML:0.9 6.228986E-5 0.192 AML other m 2019-12-08T19:50:15.50
IV.MPPT.EHN. ML:1 7.687964E-5 0.2176 AML other m 2019-12-08T19:50:16.11
IV.RUFI.EHE. ML:0.6 2.59968845E-5 0.4608 AML other m 2019-12-08T19:50:17.18
IV.RUFI.EHN. ML:0.8 3.3595105E-5 0.8832 AML other m 2019-12-08T19:50:17.61
IV.SFI.EHE. ML:0.9 2.294009655E-5 0.1664 AML other m 2019-12-08T19:50:24.29
IV.SFI.EHN. ML:0.5 8.5530325E-6 0.9216 AML other m 2019-12-08T19:50:23.39
IV.SFI.HNE. ML:1.2 5.2178935E-5 1.8432 AML other m 2019-12-08T19:50:24.17
IV.SFI.HNN. ML:1.3 6.2607785E-5 1.8688 AML other m 2019-12-08T19:50:24.61
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