Earthquake with magnitude of ML 2.1 on date 18-01-2024 and time 10:22:42 (Italy) in region 3 km SE Castelnuovo di Val di Cecina (PI)

A magnitude ML 2.1 earthquake occured in region: 3 km SE Castelnuovo di Val di Cecina (PI), on

  • 18-01-2024 09:22:42 (UTC)
  • 18-01-2024 10:22:42 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1960, 10.9330 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
Castelnuovo di Val di Cecina PI 3 2231 2231
Monterotondo Marittimo GR 8 1371 3602
Montieri GR 10 1204 4806
Radicondoli SI 12 914 5720
Pomarance PI 13 5897 11617
Chiusdino SI 13 1903 13520
Massa Marittima GR 17 8375 21895
Monteverdi Marittimo PI 18 758 22653
Casole d'Elsa SI 19 3897 26550

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km W of Siena (53903 inhabitants)
51 Km NW of Grosseto (82087 inhabitants)
64 Km SE of Livorno (159219 inhabitants)
66 Km SW of Scandicci (50609 inhabitants)
69 Km SW of Firenze (382808 inhabitants)
72 Km SE of Pisa (89158 inhabitants)
77 Km S of Prato (191150 inhabitants)
80 Km SE of Lucca (89046 inhabitants)
82 Km S of Pistoia (90315 inhabitants)
83 Km W of Arezzo (99543 inhabitants)
93 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 2024-01-18
09:22:42
43.1958 10.9333 9 2024-01-18
09:43:21
Sala Sismica INGV-Roma 124716551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-01-18 09:22:42 ± 0.16
Latitude 43.1958 ± 0.0081
Longitude 10.9333 ± 0.0148
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 124716551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1182
Semi-minor axis of confidence ellipse (meter) 823
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 130
Circular confidence region, given by single value of horizontal uncertainty (meter) 1180.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 136
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 11
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.60344
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 8
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 124716551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-01-18 09:43:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CADC.HNZ. 2024-01-18T09:23:25.66 3.0 undecidable manual Pg 3.65 0
IV.SEI.HHZ. 2024-01-18T09:23:00.78 3.0 negative manual P -0.58 0
IV.BDI.HHZ. 2024-01-18T09:22:59.64 3.0 negative manual P -1.56 0
GU.MAIM.HHZ. 2024-01-18T09:22:56.87 3.0 undecidable manual P -2.23 0
IV.CSNT.HHZ. 2024-01-18T09:22:55.84 0.3 undecidable manual S 43 42.1245 50 -0.56 63
IV.CRMI.HHZ. 2024-01-18T09:22:54.36 3.0 positive manual P -1.17 0
IV.PII.HHZ. 2024-01-18T09:22:54.30 0.3 undecidable manual P 331 66.9774 50 0.04 68
IV.ARCI.HHZ. 2024-01-18T09:22:53.52 0.3 undecidable manual P 131 58.1973 50 0.62 60
IV.RIBO.EHZ.01 2024-01-18T09:22:52.31 0.3 undecidable manual S 161 28.8489 108 -0.47 67
IV.CASP.HHZ. 2024-01-18T09:22:51.06 0.3 undecidable manual P 187 45.3213 50 0.15 69
IV.CSNT.HHZ. 2024-01-18T09:22:50.36 0.1 undecidable manual P 43 42.1245 50 -0.07 95
IV.OSSC.HHZ. 2024-01-18T09:22:50.80 0.1 positive manual P 35 44.2224 50 0.05 95
IV.FROS.CHZ. 2024-01-18T09:22:49.45 0.6 undecidable manual S 85 18.0708 117 0.14 49
IV.RIBO.EHZ.01 2024-01-18T09:22:48.32 0.1 undecidable manual P 161 28.8489 108 -0.02 98
IV.FROS.CHZ. 2024-01-18T09:22:46.55 0.1 undecidable manual P 85 18.0708 117 0.22 96
IV.TRIF.CHZ. 2024-01-18T09:22:44.81 0.1 positive manual P 195 9.2796 134 -0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TRIF.CHN. ML:2.7 0.006695 1.02 AML other m 2024-01-18T09:22:47.80
IV.TRIF.CHE. ML:2.6 0.00572 0.42 AML other m 2024-01-18T09:22:48.71
IV.FROS.CHN. ML:2.0 0.0009395 0.32 AML other m 2024-01-18T09:22:52.25
IV.FROS.CHE. ML:2.0 0.0009435 1.32 AML other m 2024-01-18T09:22:52.93
IV.RIBO.EHN.01 ML:2.3 0.0009665 1.56 AML other m 2024-01-18T09:22:54.14
IV.CSNT.HHN. ML:1.8 0.00022749999999999997 0.38 AML other m 2024-01-18T09:22:56.44
IV.CSNT.HHE. ML:1.7 0.000163 0.42 AML other m 2024-01-18T09:22:56.33
IV.OSSC.HHN. ML:2.0 0.000343 0.42 AML other m 2024-01-18T09:22:57.37
IV.CASP.HHN. ML:1.9 0.000237 0.44 AML other m 2024-01-18T09:22:57.19
IV.CASP.HHE. ML:1.8 0.000209 0.64 AML other m 2024-01-18T09:22:57.58
IV.OSSC.HHE. ML:2.1 0.000425 0.24 AML other m 2024-01-18T09:22:58.79
IV.ARCI.HHE. ML:2.0 0.00020140000000000002 0.82 AML other m 2024-01-18T09:23:02.66
IV.PII.HHN. ML:2.1 0.0002455 0.28 AML other m 2024-01-18T09:23:02.77
IV.PII.HHE. ML:2.0 0.00017335 0.88 AML other m 2024-01-18T09:23:03.79
IV.ARCI.HHN. ML:1.9 0.000166 0.7 AML other m 2024-01-18T09:23:04.64
IV.RIBO.EHE.01 ML:2.1 0.0007365 0.98 AML other m 2024-01-18T09:23:04.65
IV.SEI.HHN. ML:2.2 0.0001635 1.1 AML other m 2024-01-18T09:23:15.21
IV.SEI.HHE. ML:1.9 0.00008225000000000001 0.46 AML other m 2024-01-18T09:23:21.22
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