Earthquake with magnitude of ML 1.5 on date 24-03-2022 and time 07:31:23 (UTC) in region 2 km NW Chiusdino (SI)

A magnitude ML 1.5 earthquake occured in region: 2 km NW Chiusdino (SI), on

  • 24-03-2022 07:31:23 (UTC)
  • 24-03-2022 08:31:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1700, 11.0730 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 2 1903 1903
Montieri GR 6 1204 3107
Monticiano SI 9 1571 4678
Radicondoli SI 11 914 5592
Castelnuovo di Val di Cecina PI 14 2231 7823
Monterotondo Marittimo GR 18 1371 9194
Sovicille SI 18 10116 19310
Roccastrada GR 19 9199 28509
Casole d'Elsa SI 19 3897 32406
Massa Marittima GR 20 8375 40781

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km SW of Siena (53903 inhabitants)
46 Km N of Grosseto (82087 inhabitants)
66 Km S of Scandicci (50609 inhabitants)
68 Km S of Firenze (382808 inhabitants)
73 Km W of Arezzo (99543 inhabitants)
75 Km SE of Livorno (159219 inhabitants)
79 Km S of Prato (191150 inhabitants)
81 Km SE of Pisa (89158 inhabitants)
86 Km S of Pistoia (90315 inhabitants)
88 Km SE of Lucca (89046 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
Bulletin
Rev1000
ML 1.5 2022-03-24
07:31:23
43.1698 11.0732 10 2022-07-08
12:33:38
Bollettino Sismico Italiano INGV 102499361
Reviewed
Rev100
ML 1.5 2022-03-24
07:31:23
43.1662 11.0698 10 2022-03-24
07:37:04
Sala Sismica INGV-Roma 102315151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-03-24 07:31:23 ± 0.14
Latitude 43.1698 ± 0.0072
Longitude 11.0732 ± 0.0111
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 102499361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 958
Semi-minor axis of confidence ellipse (meter) 614
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 125
Circular confidence region, given by single value of horizontal uncertainty (meter) 960.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.45
Epicentral distance of station closest to the epicenter (degree) 0.07285
Epicentral distance of station farthest from the epicenter (degree) 0.43257
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 102315151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-03-24 07:37:04

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 102499361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-28 14:55:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARCI.HHZ. 2022-03-24T07:31:39.16 0.1 undecidable manual S 137 48.0186 50 -0.14 94
IV.CASP.HHZ. 2022-03-24T07:31:38.13 0.1 undecidable manual S 202 45.3213 50 -0.44 89
IV.CSNT.HHZ. 2022-03-24T07:31:36.21 0.1 undecidable manual S 27 37.9287 50 -0.38 91
IV.MAGO.CHZ. 2022-03-24T07:31:35.37 0.1 undecidable manual S 289 35.4423 50 -0.57 87
IV.ARCI.HHZ. 2022-03-24T07:31:33.03 0.1 undecidable manual P 137 48.0186 50 0.31 91
IV.RIBO.EHZ.01 2022-03-24T07:31:32.46 0.1 undecidable manual S 185 24.5532 112 -0.46 92
IV.CASP.HHZ. 2022-03-24T07:31:32.87 0.1 undecidable manual P 202 45.3213 50 0.57 85
IV.MAGO.CHZ. 2022-03-24T07:31:31.12 0.1 undecidable manual P 289 35.4423 50 0.34 93
IV.CSNT.HHZ. 2022-03-24T07:31:31.60 0.1 undecidable manual P 27 37.9287 50 0.44 90
IV.RIBO.EHZ.01 2022-03-24T07:31:29.29 0.1 undecidable manual P 185 24.5532 112 0.25 96
IV.TRIF.CHZ. 2022-03-24T07:31:29.83 0.1 undecidable manual S 246 15.0738 123 -0.14 100
IV.FROS.CHZ. 2022-03-24T07:31:27.53 0.1 undecidable manual S 57 8.0808 141 -0.6 90
IV.TRIF.CHZ. 2022-03-24T07:31:27.77 0.1 positive manual P 246 15.0738 123 0.43 94
IV.FROS.CHZ. 2022-03-24T07:31:26.61 0.1 undecidable manual P 57 8.0808 141 0.34 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FROS.CHN. ML:1.7 0.0007015 0.26 AML other m 2022-03-24T07:31:28.15
IV.FROS.CHE. ML:1.6 0.000587 0.62 AML other m 2022-03-24T07:31:28.01
IV.TRIF.CHN. ML:1.6 0.000422 1.34 AML other m 2022-03-24T07:31:29.23
IV.TRIF.CHE. ML:1.5 0.0003135 0.58 AML other m 2022-03-24T07:31:30.22
IV.RIBO.EHN.01 ML:1.6 0.00023999999999999998 0.4 AML other m 2022-03-24T07:31:32.99
IV.RIBO.EHE.01 ML:1.4 0.000161 1.28 AML other m 2022-03-24T07:31:33.33
IV.MAGO.CHN. ML:1.2 0.000059050000000000006 0.82 AML other m 2022-03-24T07:31:36.50
IV.MAGO.CHE. ML:1.0 0.00004315 0.08 AML other m 2022-03-24T07:31:36.53
IV.CASP.HHN. ML:1.2 0.000050799999999999995 0.32 AML other m 2022-03-24T07:31:38.39
IV.CASP.HHE. ML:1.5 0.00008575 0.14 AML other m 2022-03-24T07:31:38.40
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