Earthquake with magnitude of ML 1.0 on date 04-01-2024 and time 20:19:04 (UTC) in region 5 km S Cerreto Guidi (FI)

A magnitude ML 1.0 earthquake occured in region: 5 km S Cerreto Guidi (FI), on

  • 04-01-2024 20:19:04 (UTC)
  • 04-01-2024 21:19:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.7200, 10.8860 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
Cerreto Guidi FI 5 10870 10870
Empoli FI 5 48109 58979
San Miniato PI 5 27934 86913
Fucecchio FI 6 23618 110531
Capraia e Limite FI 8 7670 118201
Vinci FI 8 14604 132805
Santa Croce sull'Arno PI 9 14601 147406
Montelupo Fiorentino FI 11 14098 161504
Lamporecchio PT 11 7508 169012
Montopoli in Val d'Arno PI 11 11148 180160
Castelfranco di Sotto PI 11 13427 193587
Larciano PT 12 6394 199981
Castelfiorentino FI 14 17504 217485
Carmignano PO 15 14450 231935
Palaia PI 16 4612 236547
Santa Maria a Monte PI 16 13253 249800
Quarrata PT 16 26190 275990
Poggio a Caiano PO 18 10007 285997
Montespertoli FI 18 13537 299534
Ponte Buggianese PT 18 8804 308338
Monsummano Terme PT 18 21338 329676
Signa FI 19 19179 348855
Montaione FI 19 3700 352555
Lastra a Signa FI 19 20156 372711
Chiesina Uzzanese PT 19 4552 377263
Pieve a Nievole PT 19 9266 386529

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km S of Pistoia (90315 inhabitants)
24 Km W of Scandicci (50609 inhabitants)
25 Km SW of Prato (191150 inhabitants)
30 Km W of Firenze (382808 inhabitants)
34 Km E of Lucca (89046 inhabitants)
39 Km E of Pisa (89158 inhabitants)
50 Km E of Livorno (159219 inhabitants)
54 Km E of Viareggio (62467 inhabitants)
57 Km NW of Siena (53903 inhabitants)
69 Km SE of Massa (69479 inhabitants)
75 Km SE of Carrara (63133 inhabitants)
85 Km W of Arezzo (99543 inhabitants)
94 Km SW of Bologna (386663 inhabitants)
95 Km E of La Spezia (93959 inhabitants)
97 Km SW of Imola (69797 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 1.0 2024-01-04
20:19:04
43.7195 10.8858 8 2024-01-04
20:28:14
Sala Sismica INGV-Roma 124487781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-01-04 20:19:04 ± 0.17
Latitude 43.7195 ± 0.0108
Longitude 10.8858 ± 0.0100
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 124487781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1167
Semi-minor axis of confidence ellipse (meter) 254
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 4
Circular confidence region, given by single value of horizontal uncertainty (meter) 1170.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 144
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.10162
Epicentral distance of station farthest from the epicenter (degree) 0.42268
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 124487781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-01-04 20:28:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.OSSC.HHZ. 2024-01-04T20:19:16.61 0.6 undecidable manual S 127 36.1416 50 -0.46 59
GU.POPM.HHZ. 2024-01-04T20:19:16.99 0.6 undecidable manual S 344 37.5291 50 -0.44 59
IV.PII.HHZ. 2024-01-04T20:19:14.34 0.6 undecidable manual S 271 28.9488 106 -0.4 60
IV.BOSL.HHE. 2024-01-04T20:19:13.75 0.3 undecidable manual P 59 45.621 50 0.62 82
GU.CARD.HHE. 2024-01-04T20:19:13.44 0.3 undecidable manual P 317 46.9197 50 0.11 93
IV.BDI.HHZ. 2024-01-04T20:19:13.06 0.6 undecidable manual P 329 44.622 50 0.09 63
GU.MAIM.HHN. 2024-01-04T20:19:12.10 0.3 undecidable manual P 304 38.1285 50 0.12 95
IV.OSSC.HHZ. 2024-01-04T20:19:11.53 1.0 undecidable manual P 127 36.1416 50 -0.14 32
GU.POPM.HHZ. 2024-01-04T20:19:11.47 1.0 undecidable manual P 344 37.5291 50 -0.42 30
IV.PII.HHZ. 2024-01-04T20:19:10.79 0.6 undecidable manual P 271 28.9488 106 0.45 60
IV.CRMI.HHZ. 2024-01-04T20:19:08.84 0.6 undecidable manual S 42 11.2776 126 -0.31 64
IV.CRMI.HHZ. 2024-01-04T20:19:07.19 0.3 positive manual P 42 11.2776 126 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRMI.HHN. ML:0.7 0.00006343736 0.128 AML other m 2024-01-04T20:19:09.02
IV.CRMI.HHE. ML:0.6 0.000056957851499999996 0.1792 AML other m 2024-01-04T20:19:09.02
IV.CRMI.HNE. ML:0.8 0.0000881936 0.1408 AML other m 2024-01-04T20:19:09.02
IV.CRMI.HNN. ML:1.1 0.00018140765 0.8192 AML other m 2024-01-04T20:19:07.28
IV.PII.HHN. ML:1.1 0.00006515448499999999 0.2688 AML other m 2024-01-04T20:19:15.78
GU.POPM.HHE. ML:0.8 0.000023849382 0.2816 AML other m 2024-01-04T20:19:17.90
GU.POPM.HHN. ML:0.8 0.00002421996 0.192 AML other m 2024-01-04T20:19:17.43
IV.OSSC.HHE. ML:1.1 0.00005012528 1.9456 AML other m 2024-01-04T20:19:28.00
IV.OSSC.HHN. ML:1.0 0.000037794315 1.8816 AML other m 2024-01-04T20:19:24.11
IV.BDI.HNE. ML:1.6 0.00013127939 0.7552 AML other m 2024-01-04T20:19:25.17
IV.BDI.HNN. ML:1.8 0.00017740955 0.6912 AML other m 2024-01-04T20:19:27.17
IV.BDI.HHE. ML:0.9 0.000024924995 0.9984 AML other m 2024-01-04T20:19:26.55
IV.BDI.HHN. ML:0.9 0.000022860365 1.5744 AML other m 2024-01-04T20:19:32.92
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