Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 25-09-2024 and time 03:14:24 (Italy) in region 8 km SE Firenzuola (FI)

A magnitude ML 1.8 earthquake occured in region: 8 km SE Firenzuola (FI), on

  • 25-09-2024 01:14:24 (UTC)
  • 25-09-2024 03:14:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.0550, 11.4140 at 73 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 8 4726 4726
Borgo San Lorenzo FI 11 18211 22937
Palazzuolo sul Senio FI 13 1154 24091
Scarperia e San Piero FI 13 12217 36308
Vicchio FI 14 8044 44352
Barberino di Mugello FI 15 10836 55188
Marradi FI 16 3139 58327
Castel del Rio BO 19 1246 59573
Vaglia FI 20 5073 64646
Monghidoro BO 20 3749 68395

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NE of Prato (191150 inhabitants)
34 Km NE of Firenze (382808 inhabitants)
38 Km NE of Scandicci (50609 inhabitants)
41 Km SW of Imola (69797 inhabitants)
42 Km E of Pistoia (90315 inhabitants)
46 Km SW of Faenza (58541 inhabitants)
49 Km S of Bologna (386663 inhabitants)
54 Km W of Forlì (117913 inhabitants)
67 Km W of Cesena (96758 inhabitants)
75 Km SW of Ravenna (159116 inhabitants)
76 Km NW of Arezzo (99543 inhabitants)
76 Km SE of Modena (184973 inhabitants)
77 Km E of Lucca (89046 inhabitants)
82 Km N of Siena (53903 inhabitants)
88 Km S of Ferrara (133155 inhabitants)
89 Km E of Pisa (89158 inhabitants)
91 Km SE of Carpi (70699 inhabitants)
92 Km W of Rimini (147750 inhabitants)
95 Km SE of Reggio nell'Emilia (171345 inhabitants)
95 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 1.8 2024-09-25
01:14:24		 44.0553 11.4137 73 2024-09-25
01:41:03		 Sala Sismica INGV-Roma 131672461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-09-25 01:14:24 ± 0.16
Latitude 44.0553 ± 0.0099
Longitude 11.4137 ± 0.0075
Depth (km) 73 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 131672461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1003
Semi-minor axis of confidence ellipse (meter) 551
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 5
Circular confidence region, given by single value of horizontal uncertainty (meter) 1000.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 65
Number of defining phases 40
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.98296
Number of stations at which the event was observed 46
Number of stations from which data was used for origin computation 23
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 131672461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-09-25 01:41:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MCRV.HHZ. 2024-09-25T01:15:39.33 3.0 undecidable manual Pg 12.44 0
IV.CTI.HHZ. 2024-09-25T01:15:16.37 3.0 undecidable manual Sn -2.09 0
ST.VARA.EHZ. 2024-09-25T01:15:12.49 3.0 undecidable manual Sn -1.54 0
SI.ABSI.HHZ. 2024-09-25T01:15:04.03 3.0 positive manual Pn 0.98 0
OX.PLRO.HHZ. 2024-09-25T01:15:04.21 3.0 negative manual Pn -0.36 0
IV.CRTC.HHZ. 2024-09-25T01:15:01.15 3.0 undecidable manual Sn 0.63 0
NI.VINO.HHZ. 2024-09-25T01:15:01.00 3.0 positive manual Pn -0.73 0
ST.ZIAN.EHZ. 2024-09-25T01:14:57.52 3.0 negative manual Pn 0.47 0
OX.MLN.HHZ. 2024-09-25T01:14:57.08 3.0 negative manual Pn -0.55 0
ST.GAGG.HHZ. 2024-09-25T01:14:55.07 3.0 positive manual Pn 0.26 0
ST.RONC.EHZ. 2024-09-25T01:14:54.70 3.0 negative manual Pn 0.51 0
ST.PANI.EHZ. 2024-09-25T01:14:54.18 3.0 positive manual Pn 0.14 0
SI.LUSI.HHZ. 2024-09-25T01:14:53.29 3.0 positive manual Pn 0.06 0
IV.CTI.HHZ. 2024-09-25T01:14:53.59 3.0 undecidable manual Pn -0.51 0
OX.VARN.HHZ. 2024-09-25T01:14:53.57 3.0 negative manual Pn -0.54 0
IV.PARC.HHZ. 2024-09-25T01:14:51.98 0.1 undecidable manual S 124 79.9644 125 0.43 85
ST.DOSS.HHZ. 2024-09-25T01:14:51.83 3.0 negative manual Pn -0.08 0
ST.VARA.EHZ. 2024-09-25T01:14:51.76 3.0 positive manual Pn 0.15 0
IV.MAGA.HHZ. 2024-09-25T01:14:51.78 3.0 negative manual Pn 0.15 0
IV.SGAL.EHZ. 2024-09-25T01:14:50.85 3.0 undecidable manual Pn 0.55 0
GU.CARD.HHZ. 2024-09-25T01:14:50.20 0.1 undecidable manual S 268 74.37 128 -0.39 86
GU.MAIM.HHZ. 2024-09-25T01:14:50.48 0.1 undecidable manual S 258 75.2691 127 -0.26 88
IV.BDI.HHZ. 2024-09-25T01:14:49.21 0.1 undecidable manual S 271 65.1903 132 0.14 91
IV.ZEN8.EHZ. 2024-09-25T01:14:49.81 3.0 positive manual Pn 0.15 0
IV.OSSC.HHZ. 2024-09-25T01:14:48.81 0.1 undecidable manual S 193 60.495 134 0.48 87
OX.MARN.HHZ. 2024-09-25T01:14:48.52 3.0 positive manual Pn -0.26 0
IV.CRE.HHZ. 2024-09-25T01:14:48.75 0.1 undecidable manual S 138 64.7907 132 -0.25 89
IV.TREG.EHZ. 2024-09-25T01:14:47.33 3.0 undecidable manual Pn -0.06 0
IV.CRMI.HHZ. 2024-09-25T01:14:46.01 0.1 undecidable manual S 230 45.1215 144 -0.14 95
IV.SFI.EHZ. 2024-09-25T01:14:45.93 0.3 undecidable manual S 116 38.4282 148 0.6 65
IV.PSL.EHZ. 2024-09-25T01:14:45.68 0.1 undecidable manual S 263 39.0276 148 0.27 93
IV.ZOVE.EHZ. 2024-09-25T01:14:45.92 3.0 negative manual Pn -0.47 0
IT.MOG.HNZ. 2024-09-25T01:14:44.55 0.1 undecidable manual S 65 30.8469 154 0 100
IV.MPPT.EHZ. 2024-09-25T01:14:44.50 0.1 undecidable manual S 247 27.9498 156 0.22 96
IV.RIBO.EHZ. 2024-09-25T01:14:44.90 3.0 positive manual Pn -0.2 0
IV.ATVO.HHZ. 2024-09-25T01:14:43.39 0.1 undecidable manual P 133 109.113 116 0.17 84
IV.VISG.HHZ. 2024-09-25T01:14:43.84 0.1 undecidable manual S 6 14.874 167 0.46 93
IV.RUFI.EHE. 2024-09-25T01:14:43.66 0.3 undecidable manual S 162 25.2525 158 -0.39 70
IV.SEI.HHZ. 2024-09-25T01:14:43.22 1.0 undecidable manual S 269 4.3956 176 0.18 25
IV.RINC.EHZ. 2024-09-25T01:14:43.50 0.1 undecidable manual S 140 24.2535 159 -0.47 92
IV.BOSL.HHZ. 2024-09-25T01:14:43.06 0.3 undecidable manual S 193 14.1747 167 -0.28 73
IV.ATMI.HHZ. 2024-09-25T01:14:42.77 0.3 undecidable manual P 139 105.3168 117 -0.02 65
IV.VMGN.HHZ. 2024-09-25T01:14:42.94 0.6 undecidable manual S 140 14.6742 167 -0.43 47
IV.NARO.HHZ. 2024-09-25T01:14:42.20 0.6 negative manual P 117 105.6165 117 -0.62 37
IV.CAFI.HHZ. 2024-09-25T01:14:40.87 0.6 negative manual P 151 91.9413 121 -0.46 40
IV.PARC.HHZ. 2024-09-25T01:14:40.45 0.1 undecidable manual P 124 79.9644 125 0.38 85
IV.PII.HHZ. 2024-09-25T01:14:40.29 0.3 positive manual P 243 80.0643 125 0.2 66
GU.CARD.HHZ. 2024-09-25T01:14:39.49 0.1 undecidable manual P 268 74.37 128 -0.03 93
GU.MAIM.HHZ. 2024-09-25T01:14:39.81 0.6 negative manual P 258 75.2691 127 0.2 44
IV.CRE.HHZ. 2024-09-25T01:14:38.47 0.6 negative manual P 138 64.7907 132 -0.13 46
IV.OSSC.HHZ. 2024-09-25T01:14:38.68 0.1 undecidable manual P 193 60.495 134 0.47 87
IV.BDI.HHZ. 2024-09-25T01:14:38.69 0.1 positive manual P 271 65.1903 132 0.05 93
IV.CRMI.HHZ. 2024-09-25T01:14:36.98 0.3 undecidable manual P 230 45.1215 144 0.03 73
IV.MTRZ.HNE. 2024-09-25T01:14:36.35 0.1 undecidable manual P 2 28.5492 155 0.44 91
IV.ZCCA.HHZ. 2024-09-25T01:14:36.32 3.0 undecidable manual P 0
IV.SFI.EHZ. 2024-09-25T01:14:36.48 0.3 positive manual P 116 38.4282 148 0 74
IV.PSL.EHZ. 2024-09-25T01:14:36.64 1.0 negative manual P 263 39.0276 148 0.11 24
IV.SEI.HHZ. 2024-09-25T01:14:35.03 1.0 positive manual P 269 4.3956 176 -0.13 26
IV.RINC.EHZ. 2024-09-25T01:14:35.51 0.6 positive manual P 140 24.2535 159 -0.19 49
IT.MOG.HNZ. 2024-09-25T01:14:35.51 0.1 undecidable manual P 65 30.8469 154 -0.52 90
IV.BOSL.HHZ. 2024-09-25T01:14:35.06 0.3 positive manual P 193 14.1747 167 -0.27 73
IV.MPPT.EHZ. 2024-09-25T01:14:35.81 0.6 positive manual P 247 27.9498 156 -0.07 50
IV.VMGN.HHZ. 2024-09-25T01:14:35.07 0.6 positive manual P 140 14.6742 167 -0.28 49
IV.VISG.HHZ. 2024-09-25T01:14:35.38 1.0 negative manual P 6 14.874 167 0.02 26
IV.RUFI.EHE. 2024-09-25T01:14:35.48 0.1 undecidable manual P 162 25.2525 158 -0.27 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VISG.HHE. ML:1.5 0.0000479 0.26 AML other m 2024-09-25T01:14:44.38
IV.VISG.HHN. ML:1.7 0.00007978428 0.18 AML other m 2024-09-25T01:14:44.27
IV.SEI.HHN. ML:1.7 0.00008669999999999999 0.54 AML other m 2024-09-25T01:14:45.04
IV.RINC.EHN. ML:1.4 0.00003430346 0.16 AML other m 2024-09-25T01:14:43.99
IV.SFI.EHE. ML:1.5 0.000047352715000000006 0.32 AML other m 2024-09-25T01:14:46.98
IV.SFI.EHN. ML:1.6 0.000052900000000000005 0.44 AML other m 2024-09-25T01:14:46.38
IV.SEI.HHE. ML:1.6 0.00006900000000000001 0.32 AML other m 2024-09-25T01:14:48.31
IV.CRE.HHN. ML:1.6 0.00004457835 0.42 AML other m 2024-09-25T01:14:48.96
IV.BDI.HHE. ML:1.6 0.00004745000000000001 0.42 AML other m 2024-09-25T01:14:49.62
IV.BDI.HHN. ML:1.7 0.000056334460000000005 0.1 AML other m 2024-09-25T01:14:49.73
IV.OSSC.HHN. ML:1.8 0.00007185 0.22 AML other m 2024-09-25T01:14:49.83
IV.OSSC.HHE. ML:1.7 0.00005785 0.38 AML other m 2024-09-25T01:14:50.24
GU.CARD.HHN. ML:1.9 0.00007697047 0.16 AML other m 2024-09-25T01:14:51.33
IV.CRE.HHE. ML:1.5 0.00002962866 0.24 AML other m 2024-09-25T01:14:51.47
GU.CARD.HHE. ML:1.8 0.000057300000000000004 0.24 AML other m 2024-09-25T01:14:51.34
IV.PII.HHE. ML:2.1 0.00010465000000000001 0.22 AML other m 2024-09-25T01:14:51.82
IV.PARC.HHN. ML:1.4 0.0000239475525 0.26 AML other m 2024-09-25T01:14:52.33
IV.PII.HHN. ML:1.9 0.000076006795 0.2 AML other m 2024-09-25T01:14:54.18
IV.PARC.HHE. ML:1.4 0.000027480785000000002 0.36 AML other m 2024-09-25T01:14:53.09
ST.DOSS.HHE. ML:1.8 0.000014883535 0.12 AML other m 2024-09-25T01:15:13.69
IV.CTI.HHE. ML:2.3 0.0000383 1.04 AML other m 2024-09-25T01:14:55.35
IV.TREG.EHN. ML:1.9 0.0000302 0.54 AML other m 2024-09-25T01:15:05.70
IV.TREG.EHE. ML:2.0 0.000041099999999999996 1.66 AML other m 2024-09-25T01:15:06.87
ST.DOSS.HHN. ML:1.9 0.00001806102 0.1 AML other m 2024-09-25T01:15:14.61
ST.VARA.EHE. ML:2.5 0.00008125 0.1 AML other m 2024-09-25T01:15:14.11
ST.VARA.EHN. ML:2.1 0.000037089785 0.14 AML other m 2024-09-25T01:15:14.02
SI.LUSI.HHN. ML:2.4 0.0000539 0.16 AML other m 2024-09-25T01:15:16.79
SI.LUSI.HHE. ML:2.1 0.0000308 0.8 AML other m 2024-09-25T01:15:16.91
IV.CTI.HHN. ML:2.2 0.00003485 0.92 AML other m 2024-09-25T01:15:17.28
IV.PSL.EHE. ML:1.2 0.000017892779999999998 0.18 AML other m 2024-09-25T01:14:45.89
IV.PSL.EHN. ML:1.0 0.000013844550000000005 0.24 AML other m 2024-09-25T01:14:46.33
IV.CAFI.HHE. ML:1.4 0.000019443225000000002 0.36 AML other m 2024-09-25T01:14:55.25
IV.CAFI.HHN. ML:1.5 0.00002257447 0.32 AML other m 2024-09-25T01:14:53.51
IV.NARO.HHE. ML:1.2 0.000011745995 0.18 AML other m 2024-09-25T01:14:57.38
IV.ATMI.HHE. ML:1.8 0.000047274795 0.28 AML other m 2024-09-25T01:14:57.85
IV.ATMI.HHN. ML:1.8 0.00004152484 0.26 AML other m 2024-09-25T01:14:55.74
IV.ATVO.HHN. ML:1.5 0.00002019987 0.46 AML other m 2024-09-25T01:14:59.12
IV.ZOVE.EHE. ML:1.8 0.000026389815 0.08 AML other m 2024-09-25T01:15:03.43
IV.ZOVE.EHN. ML:1.9 0.000035820845000000004 0.14 AML other m 2024-09-25T01:15:03.22
OX.MARN.HHN. ML:2.2 0.000050018975 0.1 AML other m 2024-09-25T01:15:07.95
ST.VARA.HNE. ML:2.5 0.000087820005 0.12 AML other m 2024-09-25T01:15:14.05
IV.MAGA.HHE. ML:2.3 0.000057047929999999995 0.22 AML other m 2024-09-25T01:15:14.64
IV.MAGA.HHN. ML:2.4 0.000061332815 0.42 AML other m 2024-09-25T01:15:14.24
ST.ZIAN.EHN. ML:1.9 0.00001482173 0.1 AML other m 2024-09-25T01:14:58.17
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