Earthquake with magnitude of ML 1.4 on date 16-04-2024 and time 17:56:03 (UTC) in region 3 km E Poggibonsi (SI)

A magnitude ML 1.4 earthquake occured in region: 3 km E Poggibonsi (SI), on

  • 16-04-2024 17:56:03 (UTC)
  • 16-04-2024 19:56:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4740, 11.1890 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Poggibonsi SI 3 29196 29196
Barberino Val d'Elsa FI 8 4386 33582
Castellina in Chianti SI 8 2859 36441
Colle di Val d'Elsa SI 8 21620 58061
Monteriggioni SI 9 9810 67871
Tavarnelle Val di Pesa FI 10 7800 75671
San Gimignano SI 12 7820 83491
Certaldo FI 15 16121 99612
Radda in Chianti SI 15 1613 101225
Greve in Chianti FI 16 13862 115087
Casole d'Elsa SI 19 3897 118984
Gaiole in Chianti SI 20 2758 121742

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NW of Siena (53903 inhabitants)
32 Km S of Scandicci (50609 inhabitants)
33 Km S of Firenze (382808 inhabitants)
46 Km S of Prato (191150 inhabitants)
56 Km SE of Pistoia (90315 inhabitants)
56 Km W of Arezzo (99543 inhabitants)
69 Km E of Pisa (89158 inhabitants)
69 Km SE of Lucca (89046 inhabitants)
72 Km E of Livorno (159219 inhabitants)
80 Km N of Grosseto (82087 inhabitants)
87 Km SE 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 1.4 2024-04-16
17:56:03
43.4743 11.189 9 2024-04-16
18:17:26
Sala Sismica INGV-Roma 126808031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-16 17:56:03 ± 0.1
Latitude 43.4743 ± 0.0054
Longitude 11.1890 ± 0.0149
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126808031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1195
Semi-minor axis of confidence ellipse (meter) 472
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 105
Circular confidence region, given by single value of horizontal uncertainty (meter) 1200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.65021
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 126808031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-16 18:17:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ACATE.HNZ. 2024-04-16T17:58:01.30 3.0 positive manual Pg 14.89 0
IV.MCRV.HHZ. 2024-04-16T17:57:46.01 3.0 undecidable manual Sn -9.63 0
IT.VNF1.HNZ. 2024-04-16T17:57:32.72 3.0 undecidable manual Sg 3.78 0
IV.SPS2.HHZ. 2024-04-16T17:57:29.26 3.0 negative manual Pn -0.39 0
ST.GAGG.HHZ. 2024-04-16T17:57:14.49 3.0 undecidable manual Sn -4.71 0
IX.SCL3.EHZ.02 2024-04-16T17:57:13.14 3.0 negative manual Pg 3.42 0
IV.MCRV.HHZ. 2024-04-16T17:57:01.34 3.0 undecidable manual Pn -4.94 0
ST.GAGG.HHZ. 2024-04-16T17:56:51.40 3.0 undecidable manual Pg 5.59 0
IV.PTRJ.HHZ. 2024-04-16T17:56:50.70 3.0 undecidable manual Pn -5.29 0
IV.BRSN.HNZ. 2024-04-16T17:56:35.52 3.0 undecidable manual Sn -5.06 0
IV.RUFI.EHZ. 2024-04-16T17:56:19.13 0.3 undecidable manual S 32 47.8188 50 -0.25 68
GU.POPM.HHZ. 2024-04-16T17:56:18.37 3.0 undecidable manual P 72.1722 1.91 0
IV.CRMI.HHZ. 2024-04-16T17:56:16.60 0.6 undecidable manual S 335 39.4272 50 -0.53 43
IV.CAFI.HHZ. 2024-04-16T17:56:15.60 3.0 undecidable manual P -1.28 0
IV.VMGN.HHZ. 2024-04-16T17:56:15.09 0.3 undecidable manual P 27 59.9955 50 0.51 63
IV.SEI.HHZ. 2024-04-16T17:56:15.94 0.3 undecidable manual P 12 65.7897 50 0.47 63
IV.BOSL.HHZ. 2024-04-16T17:56:13.38 0.1 undecidable manual P 16 52.8027 50 -0.1 93
IV.TRIF.CHZ. 2024-04-16T17:56:12.48 0.1 undecidable manual P 210 46.1205 50 0.04 96
IV.RUFI.EHZ. 2024-04-16T17:56:12.77 1.0 undecidable manual P 32 47.8188 50 0.05 24
IV.CRMI.HHZ. 2024-04-16T17:56:11.19 0.3 undecidable manual P 335 39.4272 50 -0.22 70
IV.LOCA.HNZ. 2024-04-16T17:56:10.72 0.3 undecidable manual S 162 19.5693 114 -0.29 71
IV.FROS.CHZ. 2024-04-16T17:56:09.90 0.3 undecidable manual P 185 29.4483 106 0.14 72
IV.LOCA.HNZ. 2024-04-16T17:56:07.91 0.3 undecidable manual P 162 19.5693 114 0.03 75
IV.CSNT.HHZ. 2024-04-16T17:56:07.49 0.3 undecidable manual S 91 8.1807 137 -0.23 74
IV.OSSC.HHZ. 2024-04-16T17:56:07.38 0.3 undecidable manual S 40 7.0929 140 -0.1 76
IV.OSSC.HHZ. 2024-04-16T17:56:06.03 0.1 undecidable manual P 40 7.0929 140 0.19 99
IV.CSNT.HHZ. 2024-04-16T17:56:06.12 0.1 undecidable manual P 91 8.1807 137 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRMI.HHN. ML:0.0 0.00008074498 0.22 AML other m 2024-04-16T17:56:17.74
IV.CRMI.HHE. ML:0.0 0.000045378555 0.16 AML other m 2024-04-16T17:56:17.80
IV.BOSL.HHE. ML:0.0 0.000089426255 0.18 AML other m 2024-04-16T17:56:30.04
IV.BOSL.HHN. ML:0.0 0.00005544301 0.16 AML other m 2024-04-16T17:56:30.13
IV.TRIF.CHE. ML:0.0 0.00022609675000000002 0.152 AML other m 2024-04-16T17:56:20.43
IV.TRIF.CHN. ML:0.0 0.0002632501 0.24 AML other m 2024-04-16T17:56:19.66
IV.RUFI.EHE. ML:1.5 0.00009513817 0.22 AML other m 2024-04-16T17:56:19.35
IV.RUFI.EHN. ML:1.5 0.000084174125 0.26 AML other m 2024-04-16T17:56:19.35
IV.SEI.HHE. ML:0.0 0.000079546015 0.4 AML other m 2024-04-16T17:56:36.25
IV.SEI.HHN. ML:0.0 0.00013167824999999999 0.3 AML other m 2024-04-16T17:56:35.32
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