Earthquake with magnitude of ML 1.6 on date 23-02-2024 and time 07:15:05 (UTC) in region 4 km SW Pomarance (PI)

A magnitude ML 1.6 earthquake occured in region: 4 km SW Pomarance (PI), on

  • 23-02-2024 07:15:05 (UTC)
  • 23-02-2024 08:15:05 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.2720, 10.8500 at 10 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
Pomarance PI 4 5897 5897
Castelnuovo di Val di Cecina PI 9 2231 8128
Monterotondo Marittimo GR 14 1371 9499
Volterra PI 15 10519 20018
Monteverdi Marittimo PI 15 758 20776
Radicondoli SI 16 914 21690
Montecatini Val di Cecina PI 16 1749 23439
Casole d'Elsa SI 18 3897 27336
Guardistallo PI 18 1234 28570
Montescudaio PI 19 2144 30714
Casale Marittimo PI 19 1122 31836

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km W of Siena (53903 inhabitants)
54 Km SE of Livorno (159219 inhabitants)
61 Km SW of Scandicci (50609 inhabitants)
61 Km NW of Grosseto (82087 inhabitants)
61 Km SE of Pisa (89158 inhabitants)
64 Km SW of Firenze (382808 inhabitants)
70 Km SE of Lucca (89046 inhabitants)
71 Km S of Prato (191150 inhabitants)
74 Km S of Pistoia (90315 inhabitants)
82 Km SE of Viareggio (62467 inhabitants)
86 Km W of Arezzo (99543 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 1.6 2024-02-23
07:15:05
43.2718 10.8495 10 2024-02-23
07:32:22
Sala Sismica INGV-Roma 125471251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-02-23 07:15:05 ± 0.12
Latitude 43.2718 ± 0.0099
Longitude 10.8495 ± 0.0086
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 125471251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1071
Semi-minor axis of confidence ellipse (meter) 730
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 188
Circular confidence region, given by single value of horizontal uncertainty (meter) 1070.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 167
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.53150
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 125471251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-02-23 07:32:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ECTS.HHZ. 2024-02-23T07:16:46.06 3.0 undecidable manual Pg 18.299999 0
IV.MRGE.HHZ. 2024-02-23T07:16:43.70 3.0 undecidable manual Sn -2.06 0
IV.HPAC.HHZ. 2024-02-23T07:16:36.43 3.0 undecidable manual Pn -4.67 0
IV.SPS2.HHZ. 2024-02-23T07:16:34.25 3.0 negative manual Pg 12.27 0
IV.GIB.HHZ. 2024-02-23T07:16:29.96 3.0 undecidable manual Pg 9.59 0
IV.ACATE.HNZ. 2024-02-23T07:16:28.69 3.0 negative manual Pn -5.85 0
MN.SENA.HHZ. 2024-02-23T07:16:14.09 3.0 undecidable manual Sg 2.92 0
IV.MSAG.HHZ. 2024-02-23T07:16:13.97 3.0 undecidable manual Pg 12.38 0
IV.MMUR.HNZ. 2024-02-23T07:16:00.22 3.0 undecidable manual Sg 3.91 0
IV.MML1.EHZ. 2024-02-23T07:15:54.32 3.0 undecidable manual Sg 0.47 0
IV.BSSO.HHZ. 2024-02-23T07:15:52.40 3.0 undecidable manual Pg 2.75 0
IV.SSFR.HNZ. 2024-02-23T07:15:48.53 3.0 undecidable manual Sn -4.15 0
IV.SARZ.HNZ. 2024-02-23T07:15:44.35 3.0 undecidable manual Pg 6.07 0
IV.SFI.HNZ. 2024-02-23T07:15:43.49 3.0 undecidable manual Sg -2.12 0
MN.VLC.HHZ. 2024-02-23T07:15:39.73 3.0 undecidable manual Sn -4.17 0
GU.GRAM.HHZ. 2024-02-23T07:15:34.40 3.0 undecidable manual Pg 5.21 0
IV.MF5.EHZ. 2024-02-23T07:15:33.00 3.0 undecidable manual Pn -1.45 0
IV.T0110.HHZ. 2024-02-23T07:15:32.12 3.0 undecidable manual Pn -6.5 0
IV.MML1.EHZ. 2024-02-23T07:15:29.40 3.0 negative manual Pg -0.38 0
IV.SFI.EHZ. 2024-02-23T07:15:25.13 3.0 undecidable manual Pg -0.02 0
IV.CRMI.HNN. 2024-02-23T07:15:24.50 0.6 undecidable manual S 10 58.9965 50 -0.01 46
IV.MURB.HHZ. 2024-02-23T07:15:21.54 3.0 undecidable manual P -4.35 0
IV.OSSC.HHZ. 2024-02-23T07:15:19.70 0.6 undecidable manual S 49 42.4242 50 -0.38 44
IV.CSNT.HHZ. 2024-02-23T07:15:19.64 0.6 undecidable manual S 58 41.9247 50 -0.32 45
IV.LOCA.HHZ. 2024-02-23T07:15:18.16 1.0 undecidable manual S 83 33.5442 50 0.45 22
IV.CRMI.HNN. 2024-02-23T07:15:17.03 1.0 undecidable manual P 10 58.9965 50 0.36 22
IV.PII.HHZ. 2024-02-23T07:15:16.13 0.6 undecidable manual P 333 56.3991 50 -0.13 46
IV.FROS.CHZ. 2024-02-23T07:15:15.41 1.0 undecidable manual S 105 25.752 110 -0.07 24
IV.CSNT.HHZ. 2024-02-23T07:15:14.15 0.1 positive manual P 58 41.9247 50 0.11 94
IV.OSSC.HHZ. 2024-02-23T07:15:14.16 0.1 undecidable manual P 49 42.4242 50 0.05 95
IV.LOCA.HHZ. 2024-02-23T07:15:12.89 0.3 positive manual P 83 33.5442 50 0.14 71
IV.TRIF.CHZ. 2024-02-23T07:15:12.76 0.6 undecidable manual S 166 17.9709 118 -0.25 48
IV.FROS.CHZ. 2024-02-23T07:15:11.54 0.1 positive manual P 105 25.752 110 0.08 97
IV.TRIF.CHZ. 2024-02-23T07:15:10.05 0.1 undecidable manual P 166 17.9709 118 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TRIF.CHN. ML:1.8 0.000465 0.76 AML other m 2024-02-23T07:15:13.01
IV.TRIF.CHE. ML:1.8 0.0005025 0.52 AML other m 2024-02-23T07:15:14.41
IV.FROS.CHE. ML:1.7 0.0002805 0.4 AML other m 2024-02-23T07:15:15.05
IV.FROS.CHN. ML:1.6 0.00023400000000000002 1.56 AML other m 2024-02-23T07:15:15.80
IV.LOCA.HHN. ML:1.6 0.0001545 0.32 AML other m 2024-02-23T07:15:19.21
IV.LOCA.HHE. ML:1.5 0.00013215 0.2 AML other m 2024-02-23T07:15:19.23
IV.CSNT.HHN. ML:1.5 0.00011025 0.7 AML other m 2024-02-23T07:15:20.70
IV.CSNT.HHE. ML:1.4 0.0000842 1.58 AML other m 2024-02-23T07:15:20.83
IV.PII.HHN. ML:1.8 0.00013275 1.58 AML other m 2024-02-23T07:15:41.19
IV.PII.HHE. ML:1.8 0.00015 0.42 AML other m 2024-02-23T07:15:53.37
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