Earthquake with magnitude of ML 1.5 on date 17-03-2024 and time 20:44:03 (Italy) in region 5 km NW Chiusdino (SI)

A magnitude ML 1.5 earthquake occured in region: 5 km NW Chiusdino (SI), on

  • 17-03-2024 19:44:03 (UTC)
  • 17-03-2024 20:44:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1850, 11.0440 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
Chiusdino SI 5 1903 1903
Montieri GR 6 1204 3107
Radicondoli SI 9 914 4021
Castelnuovo di Val di Cecina PI 11 2231 6252
Monticiano SI 12 1571 7823
Monterotondo Marittimo GR 16 1371 9194
Casole d'Elsa SI 17 3897 13091
Sovicille SI 18 10116 23207
Pomarance PI 19 5897 29104
Massa Marittima GR 20 8375 37479

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km SW of Siena (53903 inhabitants)
48 Km N of Grosseto (82087 inhabitants)
65 Km S of Scandicci (50609 inhabitants)
67 Km S of Firenze (382808 inhabitants)
72 Km SE of Livorno (159219 inhabitants)
75 Km W of Arezzo (99543 inhabitants)
78 Km S of Prato (191150 inhabitants)
79 Km SE of Pisa (89158 inhabitants)
84 Km S of Pistoia (90315 inhabitants)
85 Km SE of Lucca (89046 inhabitants)
99 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 1.5 2024-03-17
19:44:03
43.1853 11.0437 8 2024-03-17
19:56:27
Sala Sismica INGV-Roma 125949141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-03-17 19:44:03 ± 0.1
Latitude 43.1853 ± 0.0072
Longitude 11.0437 ± 0.0111
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 125949141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1051
Semi-minor axis of confidence ellipse (meter) 262
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 133
Circular confidence region, given by single value of horizontal uncertainty (meter) 1050.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
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) 0.08544
Epicentral distance of station farthest from the epicenter (degree) 0.65471
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 125949141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-03-17 19:56:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PII.HHN. 2024-03-17T19:44:26.19 0.6 undecidable manual S 325 72.6717 50 -0.11 44
IV.CASP.HHZ. 2024-03-17T19:44:18.98 0.3 undecidable manual S 198 46.1205 50 -0.22 68
IV.PII.HHN. 2024-03-17T19:44:17.03 0.1 undecidable manual P 325 72.6717 50 0.25 86
IV.CSNT.HHZ. 2024-03-17T19:44:16.41 0.6 undecidable manual S 32 37.629 50 -0.52 43
IV.CRMI.HNZ. 2024-03-17T19:44:16.65 0.1 undecidable manual P 356 67.8765 50 0.61 79
IV.CASP.HHZ. 2024-03-17T19:44:13.07 0.6 negative manual P 198 46.1205 50 0.39 44
IV.OSSC.HHN. 2024-03-17T19:44:11.54 0.3 undecidable manual P 23 40.9257 50 -0.34 67
IV.LOCA.HHZ. 2024-03-17T19:44:11.69 0.3 undecidable manual S 53 22.1556 110 -0.31 70
IV.CSNT.HHZ. 2024-03-17T19:44:11.01 0.6 undecidable manual P 32 37.629 50 -0.37 45
IV.RIBO.EHZ.01 2024-03-17T19:44:09.61 0.6 negative manual P 180 26.2515 107 0.32 46
IV.FROS.CHZ. 2024-03-17T19:44:08.20 0.6 undecidable manual S 73 9.4794 131 0.06 50
IV.TRIF.CHZ. 2024-03-17T19:44:08.88 0.3 undecidable manual S 236 13.875 121 -0.49 68
IV.LOCA.HHZ. 2024-03-17T19:44:08.62 0.3 positive manual P 53 22.1556 110 0.09 73
IV.TRIF.CHZ. 2024-03-17T19:44:07.04 0.1 positive manual P 236 13.875 121 0.03 100
IV.FROS.CHZ. 2024-03-17T19:44:06.53 0.1 undecidable manual P 73 9.4794 131 0.23 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TRIF.CHE. ML:1.8 0.0007575 0.34 AML other m 2024-03-17T19:44:09.82
IV.TRIF.CHN. ML:1.7 0.000558 0.74 AML other m 2024-03-17T19:44:10.52
IV.LOCA.HHE. ML:1.7 0.00035350000000000003 0.58 AML other m 2024-03-17T19:44:12.20
IV.LOCA.HHN. ML:1.5 0.000226 0.68 AML other m 2024-03-17T19:44:12.21
IV.FROS.CHN. ML:1.6 0.0006145 0.5 AML other m 2024-03-17T19:44:13.02
IV.RIBO.EHE.01 ML:1.3 0.00012725 1.16 AML other m 2024-03-17T19:44:13.22
IV.RIBO.EHN.01 ML:1.4 0.0001392 0.86 AML other m 2024-03-17T19:44:15.72
IV.CSNT.HHN. ML:1.4 0.00008615000000000001 0.16 AML other m 2024-03-17T19:44:16.76
IV.CSNT.HHE. ML:1.3 0.00008060000000000001 0.36 AML other m 2024-03-17T19:44:16.87
IV.FROS.CHE. ML:1.6 0.0005600000000000001 0.92 AML other m 2024-03-17T19:44:16.30
IV.CASP.HHE. ML:1.0 0.0000297 0.82 AML other m 2024-03-17T19:44:20.26
IV.CASP.HHN. ML:1.3 0.00005935 0.28 AML other m 2024-03-17T19:44:23.49
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