Earthquake with magnitude of ML 1.5 on date 11-08-2020 and time 05:49:49 (Italy) in region 3 km SW Scarperia e San Piero (FI)

A magnitude ML 1.5 earthquake occured in region: 3 km SW Scarperia e San Piero (FI), on

  • 11-08-2020 03:49:49 (UTC)
  • 11-08-2020 05:49:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.94, 11.3 at 51 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 3 12217 12217
Vaglia FI 4 5073 17290
Borgo San Lorenzo FI 8 18211 35501
Barberino di Mugello FI 8 10836 46337
Calenzano FI 13 17489 63826
Vicchio FI 14 8044 71870
Vaiano PO 14 9895 81765
Sesto Fiorentino FI 14 48958 130723
Fiesole FI 15 13969 144692
Vernio PO 17 6060 150752
Prato PO 17 191150 341902
Cantagallo PO 18 3105 345007
Campi Bisenzio FI 18 46166 391173
Dicomano FI 19 5515 396688
Firenze FI 19 382808 779496
Rufina FI 20 7346 786842

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km E of Prato (191150 inhabitants)
19 Km N of Firenze (382808 inhabitants)
22 Km NE of Scandicci (50609 inhabitants)
30 Km E of Pistoia (90315 inhabitants)
57 Km SW of Imola (69797 inhabitants)
61 Km SW of Faenza (58541 inhabitants)
62 Km S of Bologna (386663 inhabitants)
65 Km E of Lucca (89046 inhabitants)
67 Km W of Forlì (117913 inhabitants)
69 Km N of Siena (53903 inhabitants)
71 Km NW of Arezzo (99543 inhabitants)
76 Km E of Pisa (89158 inhabitants)
79 Km W of Cesena (96758 inhabitants)
84 Km SE of Modena (184973 inhabitants)
84 Km E of Viareggio (62467 inhabitants)
90 Km SW of Ravenna (159116 inhabitants)
90 Km E of Livorno (159219 inhabitants)
93 Km E of Massa (69479 inhabitants)
97 Km E of Carrara (63133 inhabitants)
99 Km SE of Carpi (70699 inhabitants)
100 Km SE of Reggio nell'Emilia (171345 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
Reviewed
Rev100
ML 1.5 2020-08-11
03:49:49
43.94 11.3 51 2020-08-11
03:58:22
Sala Sismica INGV-Roma 81864421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-11 03:49:49 ± 0.15
Latitude 43.94 ± 0.01
Longitude 11.30 ± 0.01
Depth (km) 51 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81864421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 899
Semi-minor axis of confidence ellipse (meter) 809
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 164
Circular confidence region, given by single value of horizontal uncertainty (meter) 900
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 57
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 24
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
Epicentral distance of station farthest from the epicenter (degree) 0.51891
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 17
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 34
Type of magnitude ML
Reference to an origin 81864421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-11 03:58:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ARRO.EHZ. 2020-08-11T03:50:42.38 3.0 undecidable manual Sg 1.83 0
IV.APEC.HHZ. 2020-08-11T03:50:21.99 3.0 undecidable manual Sg 1.58 0
IV.CTI.HHZ. 2020-08-11T03:50:20.47 3.0 undecidable manual Pn -1.97 0
ST.VARA.EHZ. 2020-08-11T03:50:18.07 3.0 undecidable manual Pn -1.34 0
ST.DOSS.HHZ. 2020-08-11T03:50:18.36 3.0 negative manual Pn -1.56 0
IV.CASP.HHZ. 2020-08-11T03:50:11.06 3.0 negative manual Pg 0.27 0
IV.CSNT.HHZ. 2020-08-11T03:50:07.90 3.0 undecidable manual Sn -2.87 0
IV.CAFI.HHZ. 2020-08-11T03:50:06.09 3.0 positive manual Pg 0.51 0
IV.LMD.HHZ. 2020-08-11T03:50:06.39 0.3 undecidable manual S 65 0.3256 136 -0.27 68
IV.RINC.HHZ. 2020-08-11T03:50:04.99 0.3 undecidable manual S 103 0.2293 147 -0.25 70
IV.MOCL.EHZ. 2020-08-11T03:50:04.01 0.3 undecidable manual S 308 0.1061 164 -0.01 75
IV.RONT.HHZ. 2020-08-11T03:50:04.17 0.3 undecidable manual S 61 0.1115 163 0.12 74
IV.MPPT.EHZ. 2020-08-11T03:50:04.69 0.3 undecidable manual S 277 0.1502 158 0.33 70
IV.RUFI.EHZ. 2020-08-11T03:50:04.67 0.1 undecidable manual S 124 0.1835 153 -0.02 99
IV.SEI.HHZ. 2020-08-11T03:50:03.77 0.3 undecidable manual S 21 0.1223 162 -0.37 69
MN.VLC.HHZ. 2020-08-11T03:50:03.34 3.0 negative manual Pn 0.02 0
IV.PII.HHZ. 2020-08-11T03:50:02.81 3.0 negative manual Pg 0.24 0
GU.CARD.HHZ. 2020-08-11T03:50:01.95 3.0 negative manual Pg -0.27 0
IV.BDI.HHZ. 2020-08-11T03:50:01.18 0.1 negative manual P 284 0.5189 119 -0.49 85
IV.BRIS.HHZ. 2020-08-11T03:50:00.91 0.3 positive manual P 50 0.4407 125 0.16 69
GU.POPM.HHZ. 2020-08-11T03:50:00.04 0.1 negative manual P 285 0.402 129 -0.28 90
IV.MTRZ.HNE. 2020-08-11T03:50:00.57 0.1 undecidable manual P 14 0.384 130 0.44 87
IV.SFI.EHZ. 2020-08-11T03:50:00.29 0.1 undecidable manual P 95 0.3975 129 0.02 95
IV.ASQU.HHZ. 2020-08-11T03:50:00.12 0.1 undecidable manual P 112 0.3822 130 0.01 95
IV.FNVD.HHZ. 2020-08-11T03:49:59.07 0.1 undecidable manual P 331 0.2599 144 0.12 96
IV.LMD.HHZ. 2020-08-11T03:49:59.31 0.6 positive manual P 65 0.3256 136 -0.23 46
IV.CRMI.HHZ. 2020-08-11T03:49:59.32 0.1 undecidable manual P 238 0.2707 142 0.28 92
IV.VISG.HHZ. 2020-08-11T03:49:59.10 0.1 undecidable manual P 22 0.268 143 0.08 96
IV.MPPT.EHZ. 2020-08-11T03:49:58.19 0.1 negative manual P 277 0.1502 158 -0.02 100
IV.RUFI.EHZ. 2020-08-11T03:49:58.40 0.3 undecidable manual P 124 0.1835 153 0 74
IV.RINC.HHZ. 2020-08-11T03:49:58.55 0.3 undecidable manual P 103 0.2293 147 -0.16 72
IV.RONT.HHZ. 2020-08-11T03:49:58.32 0.6 undecidable manual P 61 0.1115 163 0.29 47
IT.FIE.HGE. 2020-08-11T03:49:58.56 0.1 undecidable manual P 181 0.1322 160 0.44 91
IV.SEI.HHZ. 2020-08-11T03:49:57.79 0.3 undecidable manual P 21 0.1223 162 -0.29 71
IV.MOCL.EHZ. 2020-08-11T03:49:57.91 0.1 undecidable manual P 308 0.1061 164 -0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BDI.HHN. ML:1.6 5.62E-5 0.06 AML other m 2020-08-11T03:50:01.48
IV.MOCL.EHN. ML:1.6 0.00010065 0.16 AML other m 2020-08-11T03:50:04.17
IV.RONT.HHN. ML:1.6 0.0001013 0.42 AML other m 2020-08-11T03:50:04.24
IV.MPPT.EHE. ML:1.3 5.14E-5 1.2 AML other m 2020-08-11T03:50:04.90
IV.MPPT.EHN. ML:1.5 8.37E-5 0.2 AML other m 2020-08-11T03:50:04.87
IV.RONT.HHE. ML:1.8 0.000139 0.22 AML other m 2020-08-11T03:50:05.19
IV.RUFI.EHN. ML:1.4 6.26E-5 1.52 AML other m 2020-08-11T03:50:05.97
IV.RUFI.EHE. ML:1.4 5.695E-5 1 AML other m 2020-08-11T03:50:05.26
IV.RINC.HHE. ML:1.5 6.91E-5 0.94 AML other m 2020-08-11T03:50:05.43
IV.RINC.HHN. ML:1.6 8.315E-5 0.48 AML other m 2020-08-11T03:50:05.46
IV.MOCL.EHE. ML:1.6 0.0001077 0.18 AML other m 2020-08-11T03:50:05.60
IV.SEI.HHE. ML:1.6 0.0001075 1.28 AML other m 2020-08-11T03:50:05.84
IV.CRMI.HHE. ML:1 2.02E-5 1.82 AML other m 2020-08-11T03:50:06.91
IV.CRMI.HHN. ML:1 2.045E-5 1.86 AML other m 2020-08-11T03:50:06.03
IV.FNVD.HHE. ML:1.5 6.73E-5 1.14 AML other m 2020-08-11T03:50:07.69
GU.POPM.HHN. ML:1.8 0.00011385 0.2 AML other m 2020-08-11T03:50:07.86
GU.POPM.HHE. ML:1.7 9.51E-5 1.8 AML other m 2020-08-11T03:50:07.99
IV.FNVD.HHN. ML:1.8 0.00013 0.46 AML other m 2020-08-11T03:50:08.34
IV.ASQU.HHN. ML:1.6 7.475E-5 0.24 AML other m 2020-08-11T03:50:08.07
IV.ASQU.HHE. ML:1.6 6.615E-5 0.2 AML other m 2020-08-11T03:50:08.29
IV.SEI.HHN. ML:1.8 0.000172 0.38 AML other m 2020-08-11T03:50:08.35
IV.VISG.HHE. ML:1.4 5.175E-5 0.3 AML other m 2020-08-11T03:50:08.69
IV.VISG.HHN. ML:1.5 7.09E-5 1.58 AML other m 2020-08-11T03:50:08.14
IV.LMD.HHN. ML:1.5 5.975E-5 0.36 AML other m 2020-08-11T03:50:10.24
IV.LMD.HHE. ML:1.7 9.07E-5 0.4 AML other m 2020-08-11T03:50:10.29
IV.BDI.HHE. ML:1.6 5.44E-5 0.26 AML other m 2020-08-11T03:50:10.33
IV.BRIS.HHE. ML:1.9 0.0001315 1.04 AML other m 2020-08-11T03:50:10.15
IV.SFI.EHN. ML:1.3 3.31E-5 1.32 AML other m 2020-08-11T03:50:10.86
IV.BRIS.HHN. ML:2.1 0.000201 0.24 AML other m 2020-08-11T03:50:10.97
IV.CSNT.HHE. ML:1.3 3.095E-5 1.4 AML other m 2020-08-11T03:50:11.72
IV.SFI.EHE. ML:1.4 4.355E-5 1.44 AML other m 2020-08-11T03:50:11.77
IV.CSNT.HHN. ML:1.4 4.08E-5 1.34 AML other m 2020-08-11T03:50:11.97
GU.CARD.HHN. ML:1.7 5.82E-5 1.46 AML other m 2020-08-11T03:50:13.23
IV.PII.HHN. ML:1.6 5.0E-5 0.76 AML other m 2020-08-11T03:50:13.24
GU.CARD.HHE. ML:1.6 4.815E-5 0.14 AML other m 2020-08-11T03:50:14.10
IV.PII.HHE. ML:1.5 4.17E-5 1.1 AML other m 2020-08-11T03:50:14.79
MN.VLC.HHE. ML:1.1 1.625E-5 0.26 AML other m 2020-08-11T03:50:15.11
MN.VLC.HHN. ML:1.3 2.715E-5 0.18 AML other m 2020-08-11T03:50:15.35
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