Earthquake with magnitude of ML 1.9 on date 08-12-2019 and time 20:43:41 (Italy) in region 6 km N Scarperia e San Piero (FI)

A magnitude ML 1.9 earthquake occured in region: 6 km N Scarperia e San Piero (FI), on

  • 08-12-2019 19:43:41 (UTC)
  • 08-12-2019 20:43:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.02, 11.32 at 8 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 6 12217 12217
Barberino di Mugello FI 6 10836 23053
Borgo San Lorenzo FI 9 18211 41264
Vaglia FI 12 5073 46337
Firenzuola FI 13 4726 51063
Vernio PO 14 6060 57123
Vicchio FI 15 8044 65167
Vaiano PO 16 9895 75062
Cantagallo PO 17 3105 78167
Castiglione dei Pepoli BO 19 5648 83815

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NE of Prato (191150 inhabitants)
28 Km N of Firenze (382808 inhabitants)
31 Km NE of Scandicci (50609 inhabitants)
33 Km E of Pistoia (90315 inhabitants)
49 Km SW of Imola (69797 inhabitants)
53 Km S of Bologna (386663 inhabitants)
54 Km SW of Faenza (58541 inhabitants)
62 Km W of Forlì (117913 inhabitants)
68 Km E of Lucca (89046 inhabitants)
75 Km W of Cesena (96758 inhabitants)
76 Km NW of Arezzo (99543 inhabitants)
77 Km SE of Modena (184973 inhabitants)
78 Km N of Siena (53903 inhabitants)
81 Km E of Pisa (89158 inhabitants)
83 Km SW of Ravenna (159116 inhabitants)
87 Km E of Viareggio (62467 inhabitants)
92 Km SE of Carpi (70699 inhabitants)
93 Km SE of Reggio nell'Emilia (171345 inhabitants)
94 Km E of Massa (69479 inhabitants)
94 Km S of Ferrara (133155 inhabitants)
96 Km NE of Livorno (159219 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 1.9 2019-12-08
19:43:41
44.02 11.32 8 2019-12-08
19:56:24
Sala Sismica INGV-Roma 74441091
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-08 19:43:41 ± 0.05
Latitude 44.02 ± 0.00
Longitude 11.32 ± 0.00
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 74441091

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 355
Semi-minor axis of confidence ellipse (meter) 209
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 358
Circular confidence region, given by single value of horizontal uncertainty (meter) 360
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.54229
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 74441091
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-08 19:56:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MF5.EHZ. 2019-12-08T19:44:10.04 3.0 undecidable manual Pn -0.76 0
IV.MMUR.HNZ. 2019-12-08T19:44:03.62 3.0 undecidable manual P 0.1 0
GU.POPM.HHZ. 2019-12-08T19:43:56.33 0.6 undecidable manual S 274 0.4038 50 -0.12 47
IV.ASQU.HHZ. 2019-12-08T19:43:56.72 0.3 undecidable manual S 123 0.4047 50 0.24 68
IV.SFI.EHZ. 2019-12-08T19:43:56.74 0.3 undecidable manual S 106 0.3975 50 0.49 65
IV.CRMI.HHZ. 2019-12-08T19:43:54.10 0.3 undecidable manual S 228 0.3274 50 -0.1 72
IV.PII.HHZ. 2019-12-08T19:43:54.20 3.0 positive manual P -0.52 0
IV.CSNT.HHZ. 2019-12-08T19:43:52.37 0.3 negative manual P 182 0.5423 50 -0.11 68
IV.LMD.HHZ. 2019-12-08T19:43:52.83 0.3 undecidable manual S 77 0.2869 105 -0.02 73
IV.OSSC.HHZ. 2019-12-08T19:43:51.58 0.6 negative manual P 186 0.4946 50 -0.07 46
IV.BDI.HHZ. 2019-12-08T19:43:51.93 3.0 negative manual P -0.4 0
IV.RUFI.EHZ. 2019-12-08T19:43:50.34 0.3 undecidable manual S 142 0.2248 108 -0.22 71
IV.ASQU.HHZ. 2019-12-08T19:43:50.18 0.1 undecidable manual P 123 0.4047 50 0.07 95
IV.SFI.EHZ. 2019-12-08T19:43:49.77 0.3 undecidable manual P 106 0.3975 50 -0.21 69
GU.POPM.HHZ. 2019-12-08T19:43:49.84 0.3 undecidable manual P 274 0.4038 50 -0.25 68
IV.FNVD.HHZ. 2019-12-08T19:43:49.76 0.3 undecidable manual S 318 0.2059 110 -0.12 73
IV.CRMI.HHZ. 2019-12-08T19:43:48.65 0.3 undecidable manual P 228 0.3274 50 -0.15 71
IV.MPPT.EHZ. 2019-12-08T19:43:48.70 0.1 undecidable manual S 250 0.1727 113 0.02 100
IV.MTRZ.HNE. 2019-12-08T19:43:48.45 1.0 undecidable manual P 15 0.3067 50 0.01 24
IV.LMD.HHZ. 2019-12-08T19:43:47.72 0.1 undecidable manual P 77 0.2869 105 -0.3 92
IV.MOCL.EHE. 2019-12-08T19:43:46.23 0.3 undecidable manual S 264 0.098 127 0.04 76
IV.FNVD.HHZ. 2019-12-08T19:43:46.44 0.1 positive manual P 318 0.2059 110 0.14 97
IV.RUFI.EHZ. 2019-12-08T19:43:46.72 1.0 undecidable manual P 142 0.2248 108 0.02 25
IT.FIE.HGN. 2019-12-08T19:43:46.34 0.1 undecidable manual P 184 0.2086 110 -0.01 99
IV.MPPT.EHZ. 2019-12-08T19:43:45.77 0.1 undecidable manual P 250 0.1727 113 0.16 97
IV.MOCL.EHE. 2019-12-08T19:43:44.45 0.1 undecidable manual P 264 0.098 127 0.28 96
IV.SEI.HHZ. 2019-12-08T19:43:42.48 3.0 undecidable manual S 0.0486 -2.39 0
IV.SEI.HHZ. 2019-12-08T19:43:41.03 3.0 undecidable manual P 0.0486 -2.38 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MPPT.EHE. ML:2 0.00085217535 0.2048 AML other m 2019-12-08T19:43:49.32
IV.MPPT.EHN. ML:2 0.00089979065 0.256 AML other m 2019-12-08T19:43:49.72
IV.FNVD.HHE. ML:1.9 0.0004999823 0.128 AML other m 2019-12-08T19:43:51.25
IV.FNVD.HHN. ML:2 0.00078922175 0.128 AML other m 2019-12-08T19:43:50.71
IV.LMD.HHE. ML:1.8 0.00027688205 0.3072 AML other m 2019-12-08T19:43:54.56
IV.LMD.HHN. ML:1.8 0.0002966391 0.2176 AML other m 2019-12-08T19:43:52.98
IV.CRMI.HNE. ML:2 0.00041077755 0.2176 AML other m 2019-12-08T19:43:54.27
IV.CRMI.HNN. ML:1.8 0.000277979 0.1792 AML other m 2019-12-08T19:43:54.63
IV.CRMI.HHE. ML:1.6 0.0001474574 0.2176 AML other m 2019-12-08T19:43:54.27
IV.CRMI.HHN. ML:1.7 0.0002087058 0.3712 AML other m 2019-12-08T19:43:58.32
GU.POPM.HHE. ML:2.2 0.00053278 0.1664 AML other m 2019-12-08T19:43:57.56
GU.POPM.HHN. ML:2.4 0.00087864875 0.1792 AML other m 2019-12-08T19:43:56.94
IV.OSSC.HNE. ML:1.8 0.000161721 0.1664 AML other m 2019-12-08T19:44:00.33
IV.OSSC.HNN. ML:1.9 0.00019351145 0.4608 AML other m 2019-12-08T19:44:03.33
IV.OSSC.HHE. ML:1.9 0.00019814195 0.2304 AML other m 2019-12-08T19:44:00.02
IV.OSSC.HHN. ML:1.8 0.00015569485 0.1792 AML other m 2019-12-08T19:44:00.32
IV.BDI.HHE. ML:1.9 0.0001638181 0.2816 AML other m 2019-12-08T19:44:00.57
IV.BDI.HHN. ML:1.9 0.00017981625 0.2304 AML other m 2019-12-08T19:44:01.48
IV.BDI.HNE. ML:1.9 0.000187876625 0.2432 AML other m 2019-12-08T19:44:02.28
IV.BDI.HNN. ML:2 0.0002179097 0.4992 AML other m 2019-12-08T19:44:09.72
IV.CSNT.HHE. ML:1.6 7.8051005E-5 0.2944 AML other m 2019-12-08T19:44:04.53
IV.CSNT.HHN. ML:1.8 0.00012564915 0.7296 AML other m 2019-12-08T19:44:04.98
IV.PII.HHE. ML:1.9 0.00013488205 0.384 AML other m 2019-12-08T19:44:05.31
IV.PII.HHN. ML:2 0.0001592309 0.4096 AML other m 2019-12-08T19:44:05.50
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