Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 06-01-2024 and time 05:23:15 (Italy) in region 5 km NW Montieri (GR)

A magnitude ML 2.1 earthquake occured in region: 5 km NW Montieri (GR), on

  • 06-01-2024 04:23:15 (UTC)
  • 06-01-2024 05:23:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1720, 10.9980 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.

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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
Montieri GR 5 1204 1204
Chiusdino SI 8 1903 3107
Castelnuovo di Val di Cecina PI 8 2231 5338
Radicondoli SI 11 914 6252
Monterotondo Marittimo GR 12 1371 7623
Monticiano SI 15 1571 9194
Massa Marittima GR 16 8375 17569
Pomarance PI 18 5897 23466
Casole d'Elsa SI 19 3897 27363

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km SW of Siena (53903 inhabitants)
47 Km N of Grosseto (82087 inhabitants)
67 Km S of Scandicci (50609 inhabitants)
70 Km SW of Firenze (382808 inhabitants)
70 Km SE of Livorno (159219 inhabitants)
77 Km SE of Pisa (89158 inhabitants)
79 Km W of Arezzo (99543 inhabitants)
79 Km S of Prato (191150 inhabitants)
85 Km SE of Lucca (89046 inhabitants)
85 Km S of Pistoia (90315 inhabitants)
98 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 2.1 2024-01-06
04:23:15		 43.1717 10.9982 8 2024-01-06
04:46:12		 Sala Sismica INGV-Roma 124513531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-01-06 04:23:15 ± 0.13
Latitude 43.1717 ± 0.0090
Longitude 10.9982 ± 0.0123
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 124513531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 955
Semi-minor axis of confidence ellipse (meter) 942
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 274
Circular confidence region, given by single value of horizontal uncertainty (meter) 950.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.04052
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 16
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 124513531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-01-06 04:46:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RUFI.EHZ. 2024-01-06T04:23:41.15 0.6 undecidable manual S 29 84.6486 50 -0.18 43
IV.MURB.HHZ. 2024-01-06T04:23:37.67 3.0 undecidable manual P 0.37 0
IV.LMD.HHZ. 2024-01-06T04:23:36.00 0.3 undecidable manual P 29 115.4955 50 0.8 50
IV.ATPI.EHZ. 2024-01-06T04:23:36.66 3.0 positive manual P 0.17 0
IV.PARC.HHZ. 2024-01-06T04:23:35.79 3.0 positive manual P -0.02 0
IV.ATMI.HHZ. 2024-01-06T04:23:34.22 3.0 undecidable manual P -0.16 0
IV.SFI.EHZ. 2024-01-06T04:23:34.36 0.3 undecidable manual P 40 106.2159 50 0.59 56
IV.SEI.HHZ. 2024-01-06T04:23:33.50 0.3 undecidable manual P 16 102.12 50 0.36 60
IV.CRE.HHZ. 2024-01-06T04:23:32.43 0.3 undecidable manual P 57 91.4418 50 0.93 50
GU.MAIM.HHZ. 2024-01-06T04:23:31.59 1.0 undecidable manual P 334 91.7415 50 0.04 22
IV.RUFI.EHZ. 2024-01-06T04:23:31.11 0.3 undecidable manual P 29 84.6486 50 0.67 56
IV.SACS.HHZ. 2024-01-06T04:23:31.05 0.3 undecidable manual P 116 82.1511 50 0.99 49
IV.OSSC.HHZ. 2024-01-06T04:23:29.77 0.3 undecidable manual S 27 43.8228 50 -0.69 60
IV.CAFI.HHZ. 2024-01-06T04:23:29.64 0.1 undecidable manual P 77 80.1642 50 -0.12 88
IV.CRMI.HHZ. 2024-01-06T04:23:28.12 0.1 undecidable manual P 359 69.2751 50 0.05 91
IV.CSNT.HHZ. 2024-01-06T04:23:28.72 0.1 undecidable manual S 35 40.9257 50 -0.95 72
IV.PII.HHZ. 2024-01-06T04:23:28.45 0.3 undecidable manual P 328 71.9724 50 -0.04 68
IV.ARCI.HHZ. 2024-01-06T04:23:25.51 0.1 undecidable manual P 132 52.503 50 0.01 94
IV.RIBO.EHZ.01 2024-01-06T04:23:24.09 0.1 undecidable manual S 171 24.9528 107 -0.56 87
IV.CSNT.HHZ. 2024-01-06T04:23:23.29 0.1 undecidable manual P 35 40.9257 50 -0.42 88
IV.OSSC.HHZ. 2024-01-06T04:23:23.85 0.1 undecidable manual P 27 43.8228 50 -0.31 90
IV.FROS.CHZ. 2024-01-06T04:23:20.90 0.1 undecidable manual S 72 13.4754 120 -0.06 100
IV.RIBO.EHZ.01 2024-01-06T04:23:20.85 0.1 undecidable manual P 171 24.9528 107 0.04 99
IV.TRIF.CHZ. 2024-01-06T04:23:19.72 0.1 undecidable manual S 231 9.9789 128 -0.23 97
IV.TRIF.CHZ. 2024-01-06T04:23:18.33 0.1 undecidable manual P 231 9.9789 128 0.23 97
IV.FROS.CHZ. 2024-01-06T04:23:18.84 0.1 undecidable manual P 72 13.4754 120 0.16 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TRIF.CHN. ML:2.8 0.00873 1.5 AML other m 2024-01-06T04:23:19.07
IV.TRIF.CHE. ML:2.8 0.009165 0.44 AML other m 2024-01-06T04:23:20.23
IV.FROS.CHE. ML:2.6 0.00504 0.64 AML other m 2024-01-06T04:23:21.09
IV.FROS.CHN. ML:2.6 0.004285 0.44 AML other m 2024-01-06T04:23:21.32
IV.ARCI.HHN. ML:2.1 0.000336 1.14 AML other m 2024-01-06T04:23:27.59
IV.ARCI.HHE. ML:2.0 0.0002245 1.14 AML other m 2024-01-06T04:23:27.86
IV.ARCI.HNE. ML:2.0 0.00022700000000000002 0.54 AML other m 2024-01-06T04:23:27.86
IV.RIBO.EHN.01 ML:2.3 0.00126 1.38 AML other m 2024-01-06T04:23:28.94
IV.RIBO.EHE.01 ML:2.3 0.001325 0.42 AML other m 2024-01-06T04:23:28.84
IV.CSNT.HHN. ML:2.0 0.0003095 0.88 AML other m 2024-01-06T04:23:28.92
IV.CSNT.HHE. ML:1.8 0.0002385 0.82 AML other m 2024-01-06T04:23:29.93
IV.CAFI.HHE. ML:1.8 0.00009165 1.2 AML other m 2024-01-06T04:23:30.33
IV.OSSC.HHE. ML:1.8 0.00020850000000000003 1.14 AML other m 2024-01-06T04:23:31.84
IV.OSSC.HHN. ML:1.8 0.000199 0.66 AML other m 2024-01-06T04:23:32.79
IV.CAFI.HHN. ML:1.7 0.00006525 1.18 AML other m 2024-01-06T04:23:33.03
IV.ARCI.HNN. ML:2.1 0.0003115 0.4 AML other m 2024-01-06T04:23:33.26
IV.PII.HHN. ML:2.0 0.000175 0.5 AML other m 2024-01-06T04:23:37.54
IV.ATMI.HHE. ML:2.2 0.0001555 0.64 AML other m 2024-01-06T04:23:37.85
IV.PII.HHE. ML:2.0 0.00015900000000000002 0.64 AML other m 2024-01-06T04:23:37.54
IV.ATMI.HHN. ML:2.3 0.000187 0.48 AML other m 2024-01-06T04:23:41.42
IV.PARC.HHN. ML:1.8 0.00004970000000000001 0.52 AML other m 2024-01-06T04:23:41.23
IV.PARC.HHE. ML:1.8 0.00004945 0.54 AML other m 2024-01-06T04:23:45.37
IV.SEI.HHN. ML:2.1 0.00011249999999999998 0.88 AML other m 2024-01-06T04:23:53.24
IV.SEI.HHE. ML:1.9 0.00006819999999999999 0.42 AML other m 2024-01-06T04:23:55.89
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
Waveforms Seismic signals in miniseed + resp format Download