Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 13-02-2024 and time 02:38:28 (UTC) in region 2 km SE Impruneta (FI)

A magnitude ML 1.2 earthquake occured in region: 2 km SE Impruneta (FI), on

  • 13-02-2024 02:38:28 (UTC)
  • 13-02-2024 03:38:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6680, 11.2690 at 9 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
Impruneta FI 2 14615 14615
San Casciano in Val di Pesa FI 7 17062 31677
Greve in Chianti FI 10 13862 45539
Bagno a Ripoli FI 10 25611 71150
Firenze FI 11 382808 453958
Scandicci FI 12 50609 504567
Tavarnelle Val di Pesa FI 14 7800 512367
Figline e Incisa Valdarno FI 15 23505 535872
Fiesole FI 16 13969 549841
Montespertoli FI 16 13537 563378
Barberino Val d'Elsa FI 16 4386 567764
Rignano sull'Arno FI 16 8651 576415
Lastra a Signa FI 17 20156 596571
Pontassieve FI 18 20603 617174
Signa FI 19 19179 636353
Sesto Fiorentino FI 19 48958 685311
Campi Bisenzio FI 20 46166 731477

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km S of Firenze (382808 inhabitants)
12 Km SE of Scandicci (50609 inhabitants)
27 Km SE of Prato (191150 inhabitants)
39 Km N of Siena (53903 inhabitants)
41 Km SE of Pistoia (90315 inhabitants)
54 Km W of Arezzo (99543 inhabitants)
65 Km E of Lucca (89046 inhabitants)
70 Km E of Pisa (89158 inhabitants)
78 Km E of Livorno (159219 inhabitants)
84 Km SW of Imola (69797 inhabitants)
85 Km SW of Faenza (58541 inhabitants)
85 Km E of Viareggio (62467 inhabitants)
88 Km SW of Forlì (117913 inhabitants)
92 Km S of Bologna (386663 inhabitants)
94 Km SW of Cesena (96758 inhabitants)
99 Km E of Massa (69479 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 1.2 2024-02-13
02:38:28		 43.6677 11.2687 9 2024-02-13
02:46:54		 Sala Sismica INGV-Roma 125246301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-02-13 02:38:28 ± 0.06
Latitude 43.6677 ± 0.0027
Longitude 11.2687 ± 0.0050
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 125246301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 399
Semi-minor axis of confidence ellipse (meter) 127
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 270
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.14029
Epicentral distance of station farthest from the epicenter (degree) 0.60884
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 125246301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-02-13 02:46:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAFI.HHN. 2024-02-13T02:38:49.13 0.1 undecidable manual S 124 67.5768 50 0.17 89
IV.CRE.HHZ. 2024-02-13T02:38:46.16 1.0 undecidable manual S 95 55.1004 50 0.52 21
IV.PII.HHZ. 2024-02-13T02:38:46.90 0.6 undecidable manual S 276 59.8956 50 -0.03 46
IV.SEI.HHZ. 2024-02-13T02:38:42.94 0.6 undecidable manual S 9 43.5231 50 0.4 44
IV.MOCL.EHZ. 2024-02-13T02:38:41.09 0.6 undecidable manual S 349 38.0286 50 0 49
IV.LOCA.HNE. 2024-02-13T02:38:41.33 0.1 undecidable manual S 181 40.0266 50 -0.3 91
IV.CAFI.HHN. 2024-02-13T02:38:40.38 0.1 undecidable manual P 124 67.5768 50 0.26 87
IV.PII.HHZ. 2024-02-13T02:38:39.16 0.6 negative manual P 276 59.8956 50 0.21 45
IV.BOSL.HHZ. 2024-02-13T02:38:38.65 0.1 undecidable manual S 16 30.4473 50 -0.4 91
IV.CRE.HHZ. 2024-02-13T02:38:38.41 0.6 positive manual P 95 55.1004 50 0.21 45
IV.CRMI.HHZ. 2024-02-13T02:38:37.95 0.1 undecidable manual S 302 27.1506 109 -0.04 98
IV.RUFI.EHZ. 2024-02-13T02:38:37.51 0.1 undecidable manual S 46 27.0507 109 -0.42 91
IV.SEI.HHZ. 2024-02-13T02:38:36.79 0.6 undecidable manual P 9 43.5231 50 0.38 44
IV.MOCL.EHZ. 2024-02-13T02:38:35.50 0.6 undecidable manual P 349 38.0286 50 -0.08 48
IV.LOCA.HNE. 2024-02-13T02:38:35.68 0.1 undecidable manual P 181 40.0266 50 -0.21 93
IV.CSNT.HHE. 2024-02-13T02:38:35.81 0.6 undecidable manual S 175 21.6672 113 -0.39 46
IV.OSSC.HHZ. 2024-02-13T02:38:34.64 0.1 undecidable manual S 187 16.0728 120 0.18 97
IV.BOSL.HHZ. 2024-02-13T02:38:34.37 0.6 negative manual P 16 30.4473 50 -0.03 49
IT.FIE.HGE. 2024-02-13T02:38:34.37 0.1 undecidable manual S 8 15.5733 120 0.05 100
IV.CRMI.HHZ. 2024-02-13T02:38:33.68 1.0 negative manual P 302 27.1506 109 -0.1 24
IV.RUFI.EHZ. 2024-02-13T02:38:33.74 0.6 undecidable manual P 46 27.0507 109 -0.01 49
IV.CSNT.HHE. 2024-02-13T02:38:32.67 0.1 undecidable manual P 175 21.6672 113 -0.08 98
IV.OSSC.HHZ. 2024-02-13T02:38:31.83 0.1 negative manual P 187 16.0728 120 0.08 99
IT.FIE.HGE. 2024-02-13T02:38:31.95 0.1 undecidable manual P 8 15.5733 120 0.29 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.OSSC.HHE. ML:1.4 0.00024627005 0.1792 AML other m 2024-02-13T02:38:34.69
IV.OSSC.HHN. ML:1.3 0.00017965399999999998 0.2 AML other m 2024-02-13T02:38:34.99
IV.CRMI.HHN. ML:1.0 0.00004962034499999999 0.2 AML other m 2024-02-13T02:38:39.06
IV.CRMI.HHE. ML:0.7 0.000026000020499999998 0.2208 AML other m 2024-02-13T02:38:40.71
IV.MOCL.EHE. ML:1.4 0.000095624075 0.1808 AML other m 2024-02-13T02:38:42.06
IV.MOCL.EHN. ML:1.4 0.00009308459 0.2208 AML other m 2024-02-13T02:38:42.37
IV.SEI.HHE. ML:1.2 0.0000524 1.56 AML other m 2024-02-13T02:38:44.13
IV.SEI.HHN. ML:1.4 0.00007615 1.56 AML other m 2024-02-13T02:38:44.19
IV.CRE.HHN. ML:1.1 0.000030850000000000004 1.46 AML other m 2024-02-13T02:38:49.19
IV.RUFI.EHE. ML:0.4 0.0000162809505 0.32 AML other m 2024-02-13T02:38:37.57
IV.RUFI.EHN. ML:0.7 0.000028635985 0.1792 AML other m 2024-02-13T02:38:39.21
IV.PII.HHN. ML:1.2 0.000029500495000000003 0.2992 AML other m 2024-02-13T02:38:51.01
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