Earthquake with magnitude of ML 0.9 on date 06-04-2022 and time 09:29:11 (UTC) in region 4 km NE Castelnuovo di Val di Cecina (PI)

A magnitude ML 0.9 earthquake occured in region: 4 km NE Castelnuovo di Val di Cecina (PI), on

  • 06-04-2022 09:29:11 (UTC)
  • 06-04-2022 11:29:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2400, 10.9380 at 9 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
Castelnuovo di Val di Cecina PI 4 2231 2231
Pomarance PI 9 5897 8128
Radicondoli SI 9 914 9042
Monterotondo Marittimo GR 12 1371 10413
Montieri GR 14 1204 11617
Casole d'Elsa SI 14 3897 15514
Chiusdino SI 15 1903 17417
Monteverdi Marittimo PI 19 758 18175
Volterra PI 19 10519 28694

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km W of Siena (53903 inhabitants)
55 Km N of Grosseto (82087 inhabitants)
61 Km SW of Scandicci (50609 inhabitants)
62 Km SE of Livorno (159219 inhabitants)
64 Km SW of Firenze (382808 inhabitants)
68 Km SE of Pisa (89158 inhabitants)
73 Km S of Prato (191150 inhabitants)
76 Km SE of Lucca (89046 inhabitants)
77 Km S of Pistoia (90315 inhabitants)
81 Km W of Arezzo (99543 inhabitants)
89 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
Bulletin
Rev1000
ML 0.9 2022-04-06
09:29:11
43.2395 10.938 9 2022-07-08
12:33:50
Bollettino Sismico Italiano INGV 103760261
Reviewed
Rev100
ML 1.7 2022-04-06
09:29:11
43.2392 10.9337 10 2022-04-06
21:47:14
Sala Sismica INGV-Roma 102852101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-04-06 09:29:11 ± 0.15
Latitude 43.2395 ± 0.0081
Longitude 10.9380 ± 0.0099
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 103760261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 919
Semi-minor axis of confidence ellipse (meter) 493
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 178
Circular confidence region, given by single value of horizontal uncertainty (meter) 920.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.55668
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 103760261
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-07-01 09:02:13

ML:1.7

Field Value
Value 1.7
Uncertainty 0.5
Num. used stations 4
Type of magnitude ML
Reference to an origin 102852101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-04-06 21:47:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
1J.FX14.HHZ.00 2022-04-06T09:31:10.65 3.0 negative manual Pg 15.84 0
IV.GALF.HHZ. 2022-04-06T09:30:59.21 3.0 negative manual Pg 8.97 0
IT.LRNO.HNZ. 2022-04-06T09:30:54.71 3.0 undecidable manual Sg 3.29 0
IV.ACATE.EHZ. 2022-04-06T09:30:50.21 3.0 negative manual Pn -8.36 0
IV.ILOS.HHZ. 2022-04-06T09:30:40.74 3.0 positive manual Pn -2.53 0
IV.AGLI.HHZ. 2022-04-06T09:30:32.61 3.0 undecidable manual Sg -0.17 0
MN.BNI.HHZ. 2022-04-06T09:30:17.27 3.0 negative manual Pg 5.3 0
IV.RCAV.EHZ. 2022-04-06T09:30:14.52 3.0 undecidable manual Sn -7.22 0
IV.CFMN.HNZ. 2022-04-06T09:30:11.11 3.0 undecidable manual Pg -0.25 0
RF.GEPF.HHZ. 2022-04-06T09:30:04.33 3.0 positive manual Pn -5.31 0
IV.CESX.HHZ. 2022-04-06T09:29:55.62 3.0 undecidable manual S -9.29 0
IV.ARCI.HHZ. 2022-04-06T09:29:30.93 0.3 undecidable manual S 134 61.1943 50 -0.1 71
IV.CASP.HHZ. 2022-04-06T09:29:27.45 0.3 undecidable manual S 187 50.1165 50 -0.62 63
IV.OSSC.HHZ. 2022-04-06T09:29:25.06 0.3 undecidable manual S 38 40.1265 50 -0.34 70
IV.CSNT.HHE. 2022-04-06T09:29:24.52 0.3 undecidable manual S 48 38.4282 50 -0.43 69
IV.CRMI.HHN. 2022-04-06T09:29:23.14 0.3 undecidable manual P 3 61.7937 50 0.17 69
IV.ARCI.HHZ. 2022-04-06T09:29:23.67 0.1 undecidable manual P 134 61.1943 50 0.79 77
IV.CASP.HHZ. 2022-04-06T09:29:21.29 0.1 undecidable manual P 187 50.1165 50 0.12 96
IV.MAGO.CHZ. 2022-04-06T09:29:19.80 0.3 undecidable manual S 279 22.9548 111 -0.49 70
IV.OSSC.HHZ. 2022-04-06T09:29:19.89 0.1 undecidable manual P 38 40.1265 50 0.26 95
IV.CSNT.HHE. 2022-04-06T09:29:19.60 0.3 undecidable manual P 48 38.4282 50 0.23 72
IV.FROS.CHZ. 2022-04-06T09:29:18.22 0.3 undecidable manual S 101 17.9709 116 -0.48 70
IV.MAGO.CHZ. 2022-04-06T09:29:16.93 0.1 undecidable manual P 279 22.9548 111 0.25 98
IV.FROS.CHZ. 2022-04-06T09:29:15.94 0.1 undecidable manual P 101 17.9709 116 0.18 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MAGO.CHN. ML:1.2 0.0000984 0.3 AML other m 2022-04-06T09:29:20.17
IV.MAGO.CHE. ML:1.3 0.00014049999999999997 0.3 AML other m 2022-04-06T09:29:20.23
IV.OSSC.HHN. ML:0.9 0.00002575453 0.3968 AML other m 2022-04-06T09:29:25.97
IV.OSSC.HHE. ML:0.8 0.000021788124999999997 0.1984 AML other m 2022-04-06T09:29:26.36
IV.CASP.HHE. ML:0.9 0.000017575215000000002 0.1024 AML other m 2022-04-06T09:29:27.68
IV.CASP.HHN. ML:0.8 0.000017447962000000002 0.0832 AML other m 2022-04-06T09:29:28.15
IV.ARCI.HHE. ML:0.9 0.000012806664 0.2816 AML other m 2022-04-06T09:29:31.58
IV.ARCI.HHN. ML:0.7 0.000012483373 0.1984 AML other m 2022-04-06T09:29:31.65
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