Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 19-09-2024 and time 17:57:52 (UTC) in region 5 km SE Firenzuola (FI)

A magnitude ML 0.7 earthquake occured in region: 5 km SE Firenzuola (FI), on

  • 19-09-2024 17:57:52 (UTC)
  • 19-09-2024 19:57:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.0850, 11.4300 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.

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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 6 4726 4726
Palazzuolo sul Senio FI 10 1154 5880
Marradi FI 15 3139 9019
Borgo San Lorenzo FI 15 18211 27230
Castel del Rio BO 16 1246 28476
Scarperia e San Piero FI 16 12217 40693
Vicchio FI 17 8044 48737
Monghidoro BO 18 3749 52486
Barberino di Mugello FI 18 10836 63322

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NE of Prato (191150 inhabitants)
38 Km SW of Imola (69797 inhabitants)
38 Km NE of Firenze (382808 inhabitants)
41 Km NE of Scandicci (50609 inhabitants)
43 Km SW of Faenza (58541 inhabitants)
44 Km E of Pistoia (90315 inhabitants)
46 Km S of Bologna (386663 inhabitants)
51 Km W of Forlì (117913 inhabitants)
65 Km W of Cesena (96758 inhabitants)
72 Km SW of Ravenna (159116 inhabitants)
74 Km SE of Modena (184973 inhabitants)
78 Km NW of Arezzo (99543 inhabitants)
79 Km E of Lucca (89046 inhabitants)
85 Km S of Ferrara (133155 inhabitants)
86 Km N of Siena (53903 inhabitants)
89 Km SE of Carpi (70699 inhabitants)
91 Km W of Rimini (147750 inhabitants)
92 Km E of Pisa (89158 inhabitants)
93 Km SE of Reggio nell'Emilia (171345 inhabitants)
97 Km E of Viareggio (62467 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 0.7 2024-09-19
17:57:52		 44.0847 11.4297 11 2024-09-19
18:02:22		 Sala Sismica INGV-Roma 131567811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-09-19 17:57:52 ± 0.07
Latitude 44.0847 ± 0.0027
Longitude 11.4297 ± 0.0063
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 131567811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 517
Semi-minor axis of confidence ellipse (meter) 205
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 271
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.05936
Epicentral distance of station farthest from the epicenter (degree) 0.25271
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 131567811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-09-19 18:02:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BOSL.HHZ. 2024-09-19T17:57:59.24 0.3 undecidable manual S 195 17.5713 121 0.06 73
IV.VMGN.HHZ. 2024-09-19T17:57:58.80 0.1 undecidable manual S 150 16.5723 123 -0.09 97
IV.RUFI.EHZ. 2024-09-19T17:57:57.72 0.3 undecidable manual P 167 28.0497 50 -0.1 71
IV.VISG.HHZ. 2024-09-19T17:57:57.45 0.1 undecidable manual S 2 11.5773 133 -0.05 98
IV.RINC.EHZ. 2024-09-19T17:57:57.42 0.3 undecidable manual P 147 26.1516 50 -0.09 71
IV.SEI.HHZ. 2024-09-19T17:57:56.26 0.1 undecidable manual S 239 6.5934 148 -0.13 97
IV.VMGN.HHZ. 2024-09-19T17:57:56.11 0.1 undecidable manual P 150 16.5723 123 0.12 96
IV.BOSL.HHZ. 2024-09-19T17:57:56.36 0.3 undecidable manual P 195 17.5713 121 0.2 71
IV.VISG.HHZ. 2024-09-19T17:57:55.29 0.1 undecidable manual P 2 11.5773 133 0.1 97
IV.SEI.HHZ. 2024-09-19T17:57:54.55 0.1 undecidable manual P 239 6.5934 148 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SEI.HHN. ML:1.9 0.0011790000000000001 0.22 AML other m 2024-09-19T17:57:56.60
IV.SEI.HHE. ML:1.4 0.000341 0.46 AML other m 2024-09-19T17:57:56.85
IV.VISG.HHN. ML:1.0 0.00010295023 0.22 AML other m 2024-09-19T17:57:58.30
IV.VISG.HHE. ML:0.8 0.0000771 0.24 AML other m 2024-09-19T17:57:58.29
IV.VMGN.HHN. ML:0.4 0.0000197576315 0.06 AML other m 2024-09-19T17:57:59.29
IV.BOSL.HHN. ML:0.5 0.0000264 0.32 AML other m 2024-09-19T17:57:59.56
IV.BOSL.HHE. ML:0.5 0.000026209535 0.14 AML other m 2024-09-19T17:57:59.58
IV.VMGN.HHE. ML:0.1 0.000011183801 0.36 AML other m 2024-09-19T17:58:01.54
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download