Earthquake with magnitude of ML 1.1 on date 17-09-2019 and time 10:19:37 (Italy) in region 3 km E Firenzuola (FI)

A magnitude ML 1.1 earthquake occured in region: 3 km E Firenzuola (FI), on

  • 17-09-2019 08:19:37 (UTC)
  • 17-09-2019 10:19:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.11, 11.42 at 11 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
Firenzuola FI 3 4726 4726
Palazzuolo sul Senio FI 11 1154 5880
Castel del Rio BO 14 1246 7126
Monghidoro BO 15 3749 10875
Marradi FI 16 3139 14014
Borgo San Lorenzo FI 17 18211 32225
Scarperia e San Piero FI 18 12217 44442
Barberino di Mugello FI 18 10836 55278
San Benedetto Val di Sambro BO 19 4315 59593
Vicchio FI 20 8044 67637
Loiano BO 20 4294 71931

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NE of Prato (191150 inhabitants)
36 Km SW of Imola (69797 inhabitants)
40 Km NE of Firenze (382808 inhabitants)
42 Km W of Faenza (58541 inhabitants)
43 Km NE of Scandicci (50609 inhabitants)
44 Km S of Bologna (386663 inhabitants)
44 Km E of Pistoia (90315 inhabitants)
52 Km W of Forlì (117913 inhabitants)
66 Km W of Cesena (96758 inhabitants)
71 Km W of Ravenna (159116 inhabitants)
72 Km SE of Modena (184973 inhabitants)
79 Km E of Lucca (89046 inhabitants)
80 Km NW of Arezzo (99543 inhabitants)
83 Km S of Ferrara (133155 inhabitants)
86 Km SE of Carpi (70699 inhabitants)
88 Km N of Siena (53903 inhabitants)
91 Km SE of Reggio nell'Emilia (171345 inhabitants)
92 Km W of Rimini (147750 inhabitants)
92 Km E of Pisa (89158 inhabitants)
97 Km E of Viareggio (62467 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 2019-09-17
08:19:37
44.11 11.42 11 2019-09-17
08:27:43
Sala Sismica INGV-Roma 72482221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-17 08:19:37 ± 0.09
Latitude 44.11 ± 0.01
Longitude 11.42 ± 0.01
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72482221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 634
Semi-minor axis of confidence ellipse (meter) 276
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 167
Circular confidence region, given by single value of horizontal uncertainty (meter) 630
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.27789
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 72482221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-17 08:27:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ILLI.HHZ. 2019-09-17T08:21:31.71 3.0 negative manual Pg 18.01 0
IV.IMTC.HHZ. 2019-09-17T08:21:31.33 3.0 undecidable manual Sg 2 0
IV.PTRJ.HHZ. 2019-09-17T08:21:29.40 3.0 undecidable manual Sg 6.79 0
RF.GEPF.HHZ. 2019-09-17T08:20:58.14 3.0 undecidable manual Sg 7.83 0
SI.MOSI.HHZ. 2019-09-17T08:20:50.99 3.0 undecidable manual Sn -0.21 0
IV.MRLC.HHZ. 2019-09-17T08:20:50.64 3.0 undecidable manual Pn 1.01 0
IV.OFFI.HHZ. 2019-09-17T08:20:47.04 3.0 undecidable manual Sg 2.64 0
IV.APPI.EHZ. 2019-09-17T08:20:45.03 3.0 undecidable manual Sn -1.29 0
IV.TERO.HHZ. 2019-09-17T08:20:44.96 3.0 undecidable manual Sn -3.43 0
IV.AGLI.HHZ. 2019-09-17T08:20:33.09 3.0 undecidable manual Pn -0.75 0
OX.MPRI.HHZ. 2019-09-17T08:20:17.56 3.0 undecidable manual Pn 0.01 0
MN.TRI.HHZ. 2019-09-17T08:20:16.38 3.0 positive manual Pn -0.49 0
IV.EUCT.HNZ. 2019-09-17T08:20:11.71 3.0 negative manual Pn 0.72 0
IV.SBPO.HNZ. 2019-09-17T08:20:10.02 3.0 undecidable manual S -0.36 0
IV.MMUR.HNZ. 2019-09-17T08:20:05.32 3.0 negative manual P -0.38 0
IV.MAGO.CHZ. 2019-09-17T08:19:58.78 3.0 positive manual P -1.78 0
IV.PII.HHZ. 2019-09-17T08:19:55.71 3.0 positive manual P 0.8 0
IV.BRIS.HHZ. 2019-09-17T08:19:49.00 0.6 undecidable manual S 65 0.277 50 0.6 43
IV.RUFI.EHZ. 2019-09-17T08:19:48.39 0.6 undecidable manual S 166 0.277 50 -0.02 49
IV.MPPT.EHZ. 2019-09-17T08:19:48.92 0.6 undecidable manual S 238 0.2779 50 0.49 45
IV.FNVD.HHZ. 2019-09-17T08:19:46.50 0.6 undecidable manual S 286 0.2185 50 -0.18 48
IV.LMD.HHZ. 2019-09-17T08:19:46.16 0.6 undecidable manual S 98 0.2113 50 -0.28 47
IV.MOCL.EHZ. 2019-09-17T08:19:46.16 0.6 undecidable manual S 239 0.1979 50 0.11 49
IV.MPPT.EHZ. 2019-09-17T08:19:43.58 0.1 undecidable manual P 238 0.2779 50 -0.3 93
IV.BRIS.HHZ. 2019-09-17T08:19:43.79 0.1 undecidable manual P 65 0.277 50 -0.08 98
IV.RUFI.EHZ. 2019-09-17T08:19:43.93 0.1 undecidable manual P 166 0.277 50 0.06 98
IV.LMD.HHZ. 2019-09-17T08:19:42.57 0.1 undecidable manual P 98 0.2113 50 -0.16 97
IV.MTRZ.HNZ. 2019-09-17T08:19:42.76 0.1 undecidable manual P 2 0.205 50 0.12 98
IV.MOCL.EHZ. 2019-09-17T08:19:42.60 0.1 undecidable manual P 239 0.1979 50 0.09 99
IV.SEI.HHZ. 2019-09-17T08:19:42.15 0.6 undecidable manual S 218 0.0674 145 -0.09 51
IV.FNVD.HHZ. 2019-09-17T08:19:42.69 0.1 undecidable manual P 286 0.2185 50 -0.18 97
IV.SEI.HHZ. 2019-09-17T08:19:40.47 0.1 undecidable manual P 218 0.0674 145 0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SEI.HHN. ML:1.9 0.00106 0.12 AML other m 2019-09-17T08:19:42.60
IV.SEI.HHE. ML:1.8 0.000995 0.28 AML other m 2019-09-17T08:19:42.66
IV.LMD.HHE. ML:0.7 3.04273E-5 0.0832 AML other m 2019-09-17T08:19:47.71
IV.LMD.HHN. ML:0.8 4.215511E-5 0.1216 AML other m 2019-09-17T08:19:47.32
IV.MOCL.EHE. ML:1.2 0.000100925255 0.2816 AML other m 2019-09-17T08:19:46.80
IV.MOCL.EHN. ML:1 5.8559485E-5 0.2048 AML other m 2019-09-17T08:19:47.03
IV.FNVD.HHE. ML:1.4 0.0001463951 0.1024 AML other m 2019-09-17T08:19:47.40
IV.FNVD.HHN. ML:1.4 0.00017058145 0.1024 AML other m 2019-09-17T08:19:47.46
IV.MPPT.EHE. ML:0.7 2.468971E-5 0.4352 AML other m 2019-09-17T08:19:50.73
IV.MPPT.EHN. ML:0.7 2.7190565E-5 0.2816 AML other m 2019-09-17T08:19:50.65
IV.BRIS.HHE. ML:1.1 5.345341E-5 0.224 AML other m 2019-09-17T08:19:50.04
IV.BRIS.HHN. ML:1.2 8.0435985E-5 0.3008 AML other m 2019-09-17T08:19:50.17
IV.RUFI.EHE. ML:1.2 6.7443447E-5 12.7232 AML other m 2019-09-17T08:19:57.60
IV.RUFI.EHN. ML:0.6 1.9470925E-5 1.2032 AML other m 2019-09-17T08:19:57.10
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