Earthquake with magnitude of ML 1.1 on date 09-12-2019 and time 11:58:33 (UTC) in region 6 km N Scarperia e San Piero (FI)

A magnitude ML 1.1 earthquake occured in region: 6 km N Scarperia e San Piero (FI), on

  • 09-12-2019 11:58:33 (UTC)
  • 09-12-2019 12:58:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.01, 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 7 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)
30 Km NE of Scandicci (50609 inhabitants)
33 Km E of Pistoia (90315 inhabitants)
49 Km SW of Imola (69797 inhabitants)
54 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)
77 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)
94 Km SE of Reggio nell'Emilia (171345 inhabitants)
94 Km E of Massa (69479 inhabitants)
95 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 1.1 2019-12-09
11:58:33
44.01 11.32 8 2019-12-09
12:07:06
Sala Sismica INGV-Roma 74480451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-09 11:58:33 ± 0.11
Latitude 44.01 ± 0.00
Longitude 11.32 ± 0.00
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 74480451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 399
Semi-minor axis of confidence ellipse (meter) 333
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 172
Circular confidence region, given by single value of horizontal uncertainty (meter) 400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.28598
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 74480451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-09 12:07:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PAOL.HHZ. 2019-12-09T12:00:13.68 3.0 undecidable manual Sn 0.47 0
IV.MTGR.HHZ. 2019-12-09T12:00:10.13 3.0 undecidable manual Pg 11.46 0
IV.ORI.HHZ. 2019-12-09T12:00:05.28 3.0 negative manual Pg 19.68 0
IV.ECTS.EHZ. 2019-12-09T12:00:01.87 3.0 negative manual Pn -3.23 0
IV.PAOL.HHZ. 2019-12-09T11:59:38.33 3.0 positive manual Pg 14.77 0
ZM.T1368.EHZ. 2019-12-09T11:59:37.72 3.0 undecidable manual Pg 13.29 0
IV.MRB1.HHZ. 2019-12-09T11:59:23.56 3.0 undecidable manual Pn -1.15 0
SI.KOSI.HHZ. 2019-12-09T11:59:09.63 3.0 undecidable manual Sn -1.01 0
IV.MNTT.EHZ. 2019-12-09T11:59:03.87 3.0 positive manual Pg 8.47 0
IV.VIVA.HHZ. 2019-12-09T11:59:02.87 3.0 negative manual Pn -4.24 0
IT.RMVT.HGZ. 2019-12-09T11:59:00.98 3.0 undecidable manual Pn -2.68 0
IV.EL6.EHZ. 2019-12-09T11:58:55.21 3.0 undecidable manual Pg 5.62 0
IV.SARZ.HHZ. 2019-12-09T11:58:53.26 3.0 positive manual Pg 3.28 0
IV.FIR.HHZ. 2019-12-09T11:58:53.07 3.0 undecidable manual Sn -0.73 0
IV.SENI.HNZ. 2019-12-09T11:58:46.57 3.0 undecidable manual Pn -0.36 0
IV.EUCT.HNZ. 2019-12-09T11:58:45.60 3.0 positive manual Pn -3.02 0
IV.LMD.HHN. 2019-12-09T11:58:44.69 0.3 undecidable manual S 77 0.286 104 -0.01 74
IV.RUFI.EHZ. 2019-12-09T11:58:42.31 0.6 undecidable manual S 142 0.2221 108 -0.03 50
IV.MPPT.EHE. 2019-12-09T11:58:40.42 0.1 undecidable manual S 251 0.1736 112 -0.14 99
IV.LMD.HHN. 2019-12-09T11:58:39.74 0.3 undecidable manual P 77 0.286 104 -0.16 72
IV.RUFI.EHZ. 2019-12-09T11:58:38.68 0.6 undecidable manual P 142 0.2221 108 0.15 49
IV.MOCL.EHZ. 2019-12-09T11:58:38.00 0.6 undecidable manual S 265 0.0998 126 -0.05 51
IV.CRMI.. 2019-12-09T11:58:38.30 3.0 undecidable manual S 0
IV.MPPT.EHE. 2019-12-09T11:58:37.58 0.1 undecidable manual P 251 0.1736 112 0.07 100
IV.SEI.HHZ. 2019-12-09T11:58:36.72 0.6 undecidable manual S 35 0.0495 145 0.04 52
IV.MOCL.EHZ. 2019-12-09T11:58:36.25 0.3 negative manual P 265 0.0998 126 0.19 74
IV.CRMI.HHZ. 2019-12-09T11:58:36.78 3.0 undecidable manual P -2.58 0
IV.SEI.HHZ. 2019-12-09T11:58:35.28 1.0 undecidable manual P 35 0.0495 145 0.01 26
IV.CAVE.HHZ. 2019-12-09T11:58:35.19 3.0 negative manual P 2.2 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAVE.HHE. ML:2.5 0.0003413816 0.096 AML other m 2019-12-09T11:58:37.98
IV.CAVE.HHN. ML:2.6 0.0003830797 0.48 AML other m 2019-12-09T11:58:35.99
IV.SEI.HHE. ML:0 0.0001995433 0.1216 AML other m 2019-12-09T11:58:37.17
IV.SEI.HHN. ML:0 0.0003395494 0.2944 AML other m 2019-12-09T11:58:39.06
IV.MOCL.EHE. ML:0.6 6.0391445E-5 0.1152 AML other m 2019-12-09T11:58:38.07
IV.MOCL.EHN. ML:1.1 0.00017561295 0.1408 AML other m 2019-12-09T11:58:38.33
IV.CRMI.HHE. ML:1.2 5.380835E-5 0.1024 AML other m 2019-12-09T11:58:41.13
IV.CRMI.HHN. ML:1.2 5.408719E-5 0.064 AML other m 2019-12-09T11:58:38.60
IV.CRMI.HNE. ML:1 3.99441693E-5 1.0176 AML other m 2019-12-09T11:58:44.20
IV.CRMI.HNN. ML:1.2 6.3410635E-5 1.1008 AML other m 2019-12-09T11:58:49.70
IV.RUFI.EHE. ML:1.1 7.442914E-5 3.2 AML other m 2019-12-09T11:59:02.16
IV.RUFI.EHN. ML:1 6.0270045E-5 2.4256 AML other m 2019-12-09T11:59:01.97
IV.EUCT.HNE. ML:3.2 0.0003945949 0.32 AML other m 2019-12-09T11:58:56.38
IV.EUCT.HNN. ML:3.1 0.00033888305 0.48 AML other m 2019-12-09T11:59:32.33
IV.SENI.EHE. ML:2.3 0.000102090225 0.5824 AML other m 2019-12-09T11:59:26.40
IV.SENI.EHN. ML:2.5 0.000134371 0.896 AML other m 2019-12-09T11:58:50.36
IV.SENI.HNE. ML:3 0.00047305015 0.48 AML other m 2019-12-09T11:58:57.48
IV.SENI.HNN. ML:3.1 0.0005702267 0.2368 AML other m 2019-12-09T11:59:21.29
IV.SARZ.HNE. ML:2.9 0.0002257365 0.224 AML other m 2019-12-09T11:59:41.67
IV.SARZ.HNN. ML:3 0.0002885044 0.2816 AML other m 2019-12-09T11:59:27.75
IV.SARZ.HHE. ML:2.9 0.00022196005 0.1664 AML other m 2019-12-09T11:59:41.64
IV.SARZ.HHN. ML:3 0.00027561986 0.2176 AML other m 2019-12-09T11:59:49.98
IV.EL6.EHE. ML:2 4.2968655E-5 0.32 AML other m 2019-12-09T11:59:34.83
IV.EL6.EHN. ML:2.1 5.426023E-5 0.6784 AML other m 2019-12-09T11:59:36.28
IV.VIVA.HHE. ML:3.5 0.00053904985 0.0832 AML other m 2019-12-09T11:59:09.63
IV.VIVA.HHN. ML:3.6 0.00056397605 0.16 AML other m 2019-12-09T11:59:04.89
IV.MRB1.HNE. ML:3.6 0.000193224495 0.8 AML other m 2019-12-09T12:00:43.70
IV.MRB1.HNN. ML:3.7 0.00021710405 0.8896 AML other m 2019-12-09T11:59:58.99
IV.MRB1.HHE. ML:3.1 5.3862635E-5 0.0576 AML other m 2019-12-09T11:59:23.65
IV.MRB1.HHN. ML:3.2 7.39867E-5 0.0576 AML other m 2019-12-09T11:59:28.16
IV.PAOL.HNE. ML:3.4 0.000125525015 0.608 AML other m 2019-12-09T11:59:50.11
IV.PAOL.HNN. ML:3.8 0.0002849171 0.5952 AML other m 2019-12-09T12:00:26.17
IV.PAOL.HHE. ML:2.7 2.688229E-5 0.2432 AML other m 2019-12-09T12:00:32.91
IV.PAOL.HHN. ML:2.9 3.4707435E-5 0.1792 AML other m 2019-12-09T12:00:22.36
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
Waveforms Seismic signals in full SEED format Download