Earthquake with magnitude of ML 1.5 on date 22-02-2024 and time 07:24:15 (UTC) in region 3 km NE Certaldo (FI)

A magnitude ML 1.5 earthquake occured in region: 3 km NE Certaldo (FI), on

  • 22-02-2024 07:24:15 (UTC)
  • 22-02-2024 08:24:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5700, 11.0620 at 10 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
Certaldo FI 3 16121 16121
Castelfiorentino FI 8 17504 33625
Montespertoli FI 8 13537 47162
Tavarnelle Val di Pesa FI 9 7800 54962
Gambassi Terme FI 9 4870 59832
Barberino Val d'Elsa FI 9 4386 64218
San Gimignano SI 11 7820 72038
Montaione FI 12 3700 75738
Poggibonsi SI 13 29196 104934
San Casciano in Val di Pesa FI 14 17062 121996
Colle di Val d'Elsa SI 17 21620 143616
Montelupo Fiorentino FI 18 14098 157714
Empoli FI 19 48109 205823

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km SW of Scandicci (50609 inhabitants)
27 Km SW of Firenze (382808 inhabitants)
35 Km S of Prato (191150 inhabitants)
36 Km NW of Siena (53903 inhabitants)
42 Km S of Pistoia (90315 inhabitants)
54 Km SE of Lucca (89046 inhabitants)
56 Km E of Pisa (89158 inhabitants)
61 Km E of Livorno (159219 inhabitants)
67 Km W of Arezzo (99543 inhabitants)
73 Km E of Viareggio (62467 inhabitants)
90 Km N of Grosseto (82087 inhabitants)
90 Km SE of Massa (69479 inhabitants)
96 Km SE of Carrara (63133 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 1.5 2024-02-22
07:24:15
43.5698 11.0615 10 2024-02-22
07:35:22
Sala Sismica INGV-Roma 125437651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-02-22 07:24:15 ± 0.13
Latitude 43.5698 ± 0.0063
Longitude 11.0615 ± 0.0124
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 125437651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1123
Semi-minor axis of confidence ellipse (meter) 334
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 1120.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.88493
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 125437651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-02-22 07:35:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GE.MATE.HHZ. 2024-02-22T07:26:00.15 3.0 undecidable manual Sn -8.34 0
XE.SHEVA.HHZ. 2024-02-22T07:25:21.42 3.0 undecidable manual Pn 3.05 0
GU.RNCA.HHZ. 2024-02-22T07:25:11.59 3.0 undecidable manual Sn -0.15 0
IV.DGI.HHZ. 2024-02-22T07:25:10.64 3.0 undecidable manual Pn 4.84 0
GU.GORR.HHZ. 2024-02-22T07:24:42.86 3.0 negative manual Pg 4.89 0
RF.GEPF.HHZ. 2024-02-22T07:24:38.68 3.0 undecidable manual Pn -0.61 0
GU.EQUI.HHZ. 2024-02-22T07:24:32.45 0.3 undecidable manual P 313 98.2239 50 0.47 60
IV.MPPT.EHE. 2024-02-22T07:24:29.14 0.3 undecidable manual S 3 43.0236 50 -0.35 69
IV.RM33.HNZ. 2024-02-22T07:24:29.15 3.0 undecidable manual Pn -1.91 0
IV.FROS.CHZ. 2024-02-22T07:24:28.37 0.3 undecidable manual S 169 40.626 50 -0.48 67
IV.BDI.HHZ. 2024-02-22T07:24:27.37 0.3 undecidable manual P 326 66.1893 50 0.33 66
IV.SEI.HHZ. 2024-02-22T07:24:27.90 3.0 undecidable manual P 0
GU.MAIM.HHZ. 2024-02-22T07:24:26.13 0.3 undecidable manual P 310 59.496 50 0.13 70
IV.LOCA.HHZ. 2024-02-22T07:24:26.39 0.3 undecidable manual S 151 33.4443 50 -0.52 67
IV.MOCL.EHE. 2024-02-22T07:24:25.01 0.3 undecidable manual P 11 49.2174 50 0.59 64
IV.BOSL.HHZ. 2024-02-22T07:24:24.30 0.3 undecidable manual P 32 47.2194 50 0.18 71
IV.CRMI.HHZ. 2024-02-22T07:24:24.06 0.3 undecidable manual S 345 25.8519 111 -0.81 61
IV.RUFI.EHZ. 2024-02-22T07:24:23.94 0.3 undecidable manual P 50 46.62 50 -0.09 72
IV.FROS.CHZ. 2024-02-22T07:24:23.36 0.1 undecidable manual P 169 40.626 50 0.25 94
IV.CSNT.HHZ. 2024-02-22T07:24:23.24 0.3 undecidable manual S 120 21.2676 115 -0.16 74
IV.MPPT.EHE. 2024-02-22T07:24:23.47 0.3 undecidable manual P 3 43.0236 50 0 74
IV.GUMA.HHZ. 2024-02-22T07:24:23.19 3.0 positive manual P -1.92 0
IV.PII.HHZ. 2024-02-22T07:24:23.97 0.3 undecidable manual P 292 46.2204 50 0 74
IV.OSSC.HHZ. 2024-02-22T07:24:22.00 0.3 undecidable manual S 109 15.6732 122 0.32 73
IV.LOCA.HHZ. 2024-02-22T07:24:22.07 0.6 undecidable manual P 151 33.4443 50 0.09 49
IV.CRMI.HHZ. 2024-02-22T07:24:20.57 0.3 negative manual P 345 25.8519 111 -0.24 73
IV.OSSC.HHZ. 2024-02-22T07:24:19.14 0.1 undecidable manual P 109 15.6732 122 0.17 100
IV.CSNT.HHZ. 2024-02-22T07:24:19.81 1.0 positive manual P 120 21.2676 115 -0.15 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.OSSC.HHE. ML:1.8 0.0005484999999999999 0.8 AML other m 2024-02-22T07:24:22.14
IV.OSSC.HHN. ML:1.7 0.0005225 0.22 AML other m 2024-02-22T07:24:22.80
IV.CSNT.HHE. ML:1.4 0.000176 0.36 AML other m 2024-02-22T07:24:23.43
IV.CSNT.HHN. ML:1.4 0.0001915 0.6 AML other m 2024-02-22T07:24:23.96
IV.CRMI.HHN. ML:1.7 0.0002685 0.62 AML other m 2024-02-22T07:24:24.64
IV.CRMI.HHE. ML:1.4 0.000151 0.78 AML other m 2024-02-22T07:24:24.27
IV.LOCA.HHE. ML:1.5 0.0001225 0.54 AML other m 2024-02-22T07:24:27.56
IV.LOCA.HHN. ML:1.5 0.0001435 1.82 AML other m 2024-02-22T07:24:28.98
IV.PII.HHE. ML:1.6 0.00010899999999999999 1.7 AML other m 2024-02-22T07:24:30.03
IV.PII.HHN. ML:1.8 0.00017199999999999998 1.76 AML other m 2024-02-22T07:24:30.96
IV.BOSL.HHE. ML:0.7 0.00001745 0.78 AML other m 2024-02-22T07:24:31.78
IV.BOSL.HHN. ML:1.0 0.00003025 0.3 AML other m 2024-02-22T07:24:31.87
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