Earthquake with magnitude of ML 1.8 on date 29-11-2023 and time 06:17:57 (Italy) in region 3 km NW Montespertoli (FI)

A magnitude ML 1.8 earthquake occured in region: 3 km NW Montespertoli (FI), on

  • 29-11-2023 05:17:57 (UTC)
  • 29-11-2023 06:17:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6620, 11.0470 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
Montespertoli FI 3 13537 13537
Montelupo Fiorentino FI 8 14098 27635
Castelfiorentino FI 9 17504 45139
Empoli FI 10 48109 93248
Capraia e Limite FI 11 7670 100918
San Casciano in Val di Pesa FI 11 17062 117980
Certaldo FI 13 16121 134101
Lastra a Signa FI 13 20156 154257
Signa FI 14 19179 173436
Tavarnelle Val di Pesa FI 15 7800 181236
Scandicci FI 15 50609 231845
Gambassi Terme FI 16 4870 236715
San Miniato PI 16 27934 264649
Montaione FI 16 3700 268349
Barberino Val d'Elsa FI 17 4386 272735
Impruneta FI 17 14615 287350
Vinci FI 17 14604 301954
Carmignano PO 17 14450 316404
Poggio a Caiano PO 17 10007 326411
Cerreto Guidi FI 17 10870 337281
Campi Bisenzio FI 19 46166 383447

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km SW of Scandicci (50609 inhabitants)
21 Km SW of Firenze (382808 inhabitants)
25 Km S of Prato (191150 inhabitants)
32 Km SE of Pistoia (90315 inhabitants)
45 Km NW of Siena (53903 inhabitants)
48 Km E of Lucca (89046 inhabitants)
52 Km E of Pisa (89158 inhabitants)
61 Km E of Livorno (159219 inhabitants)
68 Km E of Viareggio (62467 inhabitants)
71 Km W of Arezzo (99543 inhabitants)
84 Km SE of Massa (69479 inhabitants)
89 Km SE of Carrara (63133 inhabitants)
94 Km SW of Imola (69797 inhabitants)
96 Km S of Bologna (386663 inhabitants)
97 Km SW of Faenza (58541 inhabitants)
100 Km N of Grosseto (82087 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 2023-11-29
05:17:57
43.6615 11.0468 8 2023-11-29
05:30:15
Sala Sismica INGV-Roma 123550911
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-11-29 05:17:57 ± 0.11
Latitude 43.6615 ± 0.0036
Longitude 11.0468 ± 0.0062
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 123550911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 471
Semi-minor axis of confidence ellipse (meter) 313
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 237
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.74464
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 21
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 123550911
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-11-29 05:30:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VAGA.HHZ. 2023-11-29T05:19:38.46 3.0 undecidable manual Sg 10.25 0
OT.OT15.EHZ. 2023-11-29T05:19:14.67 3.0 positive manual Pn 2.17 0
OT.OT14.EHZ. 2023-11-29T05:19:09.58 3.0 undecidable manual Pg 11.24 0
IV.MDI.HHZ. 2023-11-29T05:19:06.06 3.0 undecidable manual Sn 1.47 0
IV.VAGA.HHZ. 2023-11-29T05:18:58.45 3.0 negative manual Pg 10.12 0
IV.QLNO.HHZ. 2023-11-29T05:18:36.02 3.0 undecidable manual Pg 4.2 0
4P.IT07A.HHZ. 2023-11-29T05:18:23.51 3.0 negative manual P -0.35 0
IV.SSFR.HHZ. 2023-11-29T05:18:21.01 3.0 undecidable manual P -0.08 0
IV.SFI.EHZ. 2023-11-29T05:18:19.63 0.6 undecidable manual S 67 69.4749 50 0.82 37
IV.CASP.HHZ. 2023-11-29T05:18:15.23 3.0 undecidable manual P 0
IV.VMGN.HHZ. 2023-11-29T05:18:14.02 0.1 undecidable manual S 50 50.7159 50 0.24 93
GU.POPM.HHZ. 2023-11-29T05:18:13.53 0.3 undecidable manual S 331 48.4182 50 0.35 69
IV.SEI.HHZ. 2023-11-29T05:18:13.99 0.1 undecidable manual S 30 50.2164 50 0.34 91
IV.FROS.CHN. 2023-11-29T05:18:13.47 0.1 undecidable manual S 170 50.9157 50 -0.36 91
GU.MAIM.HHZ. 2023-11-29T05:18:13.93 0.1 undecidable manual S 302 52.503 50 -0.33 91
IV.CAFI.HHZ. 2023-11-29T05:18:12.25 0.6 undecidable manual P 116 82.6506 50 0.56 41
IV.LOCA.HHE. 2023-11-29T05:18:11.78 0.3 undecidable manual S 156 43.0236 50 0.05 74
IV.MOCL.EHE. 2023-11-29T05:18:11.02 0.1 undecidable manual S 16 39.5271 50 0.21 96
IV.PII.HHZ. 2023-11-29T05:18:11.27 0.1 undecidable manual S 279 42.4242 50 -0.3 93
IV.BOSL.HHN. 2023-11-29T05:18:10.17 0.1 undecidable manual S 41 39.7269 50 -0.69 83
IV.RUFI.EHZ. 2023-11-29T05:18:10.86 0.1 undecidable manual S 62 41.9247 50 -0.58 87
IV.PSL.EHZ. 2023-11-29T05:18:10.76 0.1 undecidable manual S 346 39.7269 50 -0.08 98
IV.SFI.EHZ. 2023-11-29T05:18:10.35 1.0 undecidable manual P 67 69.4749 50 0.68 20
IV.CRE.HHZ. 2023-11-29T05:18:10.94 0.6 negative manual P 93 72.7716 50 0.77 38
IV.TRIF.CHZ. 2023-11-29T05:18:09.28 0.3 negative manual P 191 61.7937 50 0.81 57
IV.BDI.HHZ. 2023-11-29T05:18:08.06 0.6 undecidable manual P 321 57.2982 50 0.27 46
IV.CSNT.HHZ. 2023-11-29T05:18:07.14 0.1 undecidable manual S 137 28.6491 106 -0.4 94
GU.MAIM.HHZ. 2023-11-29T05:18:07.30 1.0 negative manual P 302 52.503 50 0.25 23
IV.VMGN.HHZ. 2023-11-29T05:18:07.12 0.6 positive manual P 50 50.7159 50 0.35 45
GU.POPM.HHZ. 2023-11-29T05:18:06.37 1.0 undecidable manual P 331 48.4182 50 -0.05 24
IV.SEI.HHZ. 2023-11-29T05:18:06.91 1.0 undecidable manual P 30 50.2164 50 0.22 23
IV.FROS.CHN. 2023-11-29T05:18:06.81 0.1 undecidable manual P 170 50.9157 50 0.01 98
IV.PII.HHZ. 2023-11-29T05:18:05.71 0.1 negative manual P 279 42.4242 50 0.22 95
IV.RUFI.EHZ. 2023-11-29T05:18:05.26 0.1 undecidable manual P 62 41.9247 50 -0.16 96
IV.LOCA.HHE. 2023-11-29T05:18:05.45 0.1 undecidable manual P 156 43.0236 50 -0.14 96
IV.OSSC.HHZ. 2023-11-29T05:18:05.75 0.1 undecidable manual S 134 22.1556 111 0.35 96
IV.PSL.EHZ. 2023-11-29T05:18:05.04 0.6 negative manual P 346 39.7269 50 -0.03 50
IV.BOSL.HHN. 2023-11-29T05:18:04.88 0.1 undecidable manual P 41 39.7269 50 -0.2 96
IV.MOCL.EHE. 2023-11-29T05:18:04.74 1.0 undecidable manual P 16 39.5271 50 -0.31 23
IV.CSNT.HHZ. 2023-11-29T05:18:02.80 1.0 negative manual P 137 28.6491 106 -0.36 24
IT.FIE.HGE. 2023-11-29T05:18:02.39 0.1 undecidable manual P 51 25.5522 108 -0.19 98
IV.FIR.HNZ. 2023-11-29T05:18:01.54 0.1 undecidable manual P 53 20.868 112 -0.16 100
IV.OSSC.HHZ. 2023-11-29T05:18:01.96 0.6 negative manual P 134 22.1556 111 0.03 51
IV.CRMI.HHZ. 2023-11-29T05:18:00.93 1.0 undecidable manual P 340 15.873 118 0.15 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRMI.HHN. ML:1.6 0.00034050000000000004 1.16 AML other m 2023-11-29T05:18:04.01
IV.CRMI.HHE. ML:1.2 0.0001665 1.5 AML other m 2023-11-29T05:18:04.96
IV.OSSC.HHE. ML:1.8 0.0004895 1.18 AML other m 2023-11-29T05:18:05.98
IV.OSSC.HHN. ML:1.7 0.00038250000000000003 0.42 AML other m 2023-11-29T05:18:06.86
IV.CSNT.HHN. ML:1.9 0.00040050000000000003 0.3 AML other m 2023-11-29T05:18:07.80
IV.CSNT.HHE. ML:1.7 0.000263 0.92 AML other m 2023-11-29T05:18:08.23
IV.RUFI.EHN. ML:2.0 0.00032450000000000003 0.22 AML other m 2023-11-29T05:18:11.25
IV.RUFI.EHE. ML:1.9 0.00026450000000000003 0.84 AML other m 2023-11-29T05:18:11.77
IV.PII.HHN. ML:2.0 0.000334 1.74 AML other m 2023-11-29T05:18:12.08
IV.PII.HHE. ML:2.2 0.000516 1.78 AML other m 2023-11-29T05:18:12.95
GU.POPM.HHE. ML:1.6 0.0001215 1.22 AML other m 2023-11-29T05:18:14.63
IV.SEI.HHN. ML:2.1 0.000312 0.94 AML other m 2023-11-29T05:18:14.82
IV.VMGN.HHE. ML:1.4 0.00006264999999999999 0.94 AML other m 2023-11-29T05:18:14.89
IV.VMGN.HHN. ML:1.4 0.0000625 0.58 AML other m 2023-11-29T05:18:16.40
GU.POPM.HHN. ML:1.9 0.00022250000000000001 0.72 AML other m 2023-11-29T05:18:16.53
IV.SEI.HHE. ML:1.9 0.000193 0.28 AML other m 2023-11-29T05:18:18.34
IV.BDI.HHN. ML:1.8 0.0001505 0.46 AML other m 2023-11-29T05:18:19.53
IV.BDI.HHE. ML:1.7 0.00012009999999999999 0.98 AML other m 2023-11-29T05:18:19.35
IV.CRE.HHN. ML:1.7 0.0000848 0.2 AML other m 2023-11-29T05:18:20.53
IV.CRE.HHE. ML:1.7 0.00008345 0.24 AML other m 2023-11-29T05:18:21.30
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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