Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 09-09-2015 and time 22:26:24 (Italy) in region 5 km NE Castelnuovo di Val di Cecina (PI)

A magnitude ML 2.2 earthquake occured in region: 5 km NE Castelnuovo di Val di Cecina (PI), on

  • 09-09-2015 20:26:24 (UTC)
  • 09-09-2015 22:26:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2410, 10.9450 at 5 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.

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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
Castelnuovo di Val di Cecina PI 5 2231 2231
Radicondoli SI 8 914 3145
Pomarance PI 9 5897 9042
Monterotondo Marittimo GR 13 1371 10413
Montieri GR 14 1204 11617
Casole d'Elsa SI 14 3897 15514
Chiusdino SI 15 1903 17417
Volterra PI 19 10519 27936
Monteverdi Marittimo PI 20 758 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)
69 Km SE of Pisa (89158 inhabitants)
72 Km S of Prato (191150 inhabitants)
76 Km SE of Lucca (89046 inhabitants)
77 Km S of Pistoia (90315 inhabitants)
80 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 2.2 2015-09-09
20:26:24		 43.2407 10.9453 5 2016-02-19
13:21:47		 Bollettino Sismico Italiano INGV 23178801
Reviewed
Rev100 		ML 2.1 2015-09-09
20:26:24		 43.2395 10.9478 5 2015-09-09
20:33:20		 Sala Sismica INGV-Roma 21311981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-09-09 20:26:24 ± 0.13
Latitude 43.2407 ± 0.0045
Longitude 10.9453 ± 0.0086
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 23178801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 537
Semi-minor axis of confidence ellipse (meter) 531
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 102
Circular confidence region, given by single value of horizontal uncertainty (meter) 540.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 56
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.02343
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 21311981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-09-09 20:33:19

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 17
Type of magnitude ML
Reference to an origin 23178801
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2016-01-21 11:30:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTRJ.HNZ. 2015-09-09T20:27:58.99 3.0 undecidable manual Sn 4.15 0
GU.BURY.HHZ. 2015-09-09T20:27:43.99 3.0 undecidable manual Sn 6.56 0
NI.ZOU2.HHZ. 2015-09-09T20:27:18.72 3.0 positive manual Pn -1.18 0
IV.MAON.HHZ. 2015-09-09T20:26:52.37 0.3 undecidable manual S 170 91.3419 50 0.2 65
IV.RUFI.EHZ. 2015-09-09T20:26:49.08 0.6 undecidable manual S 34 80.2641 50 -0.14 45
IV.PARC.HHZ. 2015-09-09T20:26:44.26 0.1 undecidable manual P 66 113.5974 50 0.57 75
IV.PII.HHZ. 2015-09-09T20:26:43.75 0.6 undecidable manual S 328 63.1923 50 -0.9 36
IV.ARCI.HHZ. 2015-09-09T20:26:43.33 0.6 undecidable manual S 135 60.8946 50 -0.7 39
IV.SSP9.EHZ. 2015-09-09T20:26:42.75 0.6 undecidable manual P 68 102.5196 50 0.77 35
IV.SFI.EHZ. 2015-09-09T20:26:42.56 0.1 undecidable manual P 44 103.3188 50 0.46 80
IV.BDI.HHZ. 2015-09-09T20:26:41.09 0.3 undecidable manual P 343 95.4378 50 0.21 64
IV.SEI.HHZ. 2015-09-09T20:26:41.47 0.3 undecidable manual P 20 96.126 50 0.47 60
IV.GROG.HHZ. 2015-09-09T20:26:40.23 0.6 undecidable manual P 284 87.4458 50 0.57 40
IV.MAON.HHZ. 2015-09-09T20:26:40.73 0.1 positive manual P 170 91.3419 50 0.46 81
IV.ASQU.HHZ. 2015-09-09T20:26:40.79 0.1 positive manual P 47 91.7415 50 0.47 81
GU.CARD.HHZ. 2015-09-09T20:26:40.64 0.3 undecidable manual P 337 94.7385 50 -0.14 65
IV.CELB.HHZ. 2015-09-09T20:26:39.00 0.3 undecidable manual P 228 80.9523 50 0.34 64
IV.CASP.HHZ. 2015-09-09T20:26:39.67 0.6 undecidable manual S 187 50.3163 50 -1.54 26
IV.MCIV.HHZ. 2015-09-09T20:26:38.15 0.3 undecidable manual P 131 78.366 50 -0.12 67
GU.MAIM.HHZ. 2015-09-09T20:26:38.86 0.1 positive manual P 334 83.1501 50 -0.14 89
IV.MPPT.EHZ. 2015-09-09T20:26:38.68 0.1 undecidable manual P 8 80.364 50 0.11 90
IV.RUFI.EHZ. 2015-09-09T20:26:38.51 0.1 undecidable manual P 34 80.2641 50 -0.05 91
IV.CAFI.HHZ. 2015-09-09T20:26:38.97 0.1 positive manual P 83 83.0502 50 -0.01 91
IV.OSSC.HHZ. 2015-09-09T20:26:37.49 0.3 undecidable manual S 38 39.627 97 -0.38 69
IV.CSNT.HHZ. 2015-09-09T20:26:36.57 0.6 undecidable manual S 47 37.9287 98 -0.71 41
IV.ARCI.HHZ. 2015-09-09T20:26:35.32 0.3 undecidable manual P 135 60.8946 50 -0.24 68
IV.PII.HHZ. 2015-09-09T20:26:35.68 0.1 undecidable manual P 328 63.1923 50 -0.24 90
IV.CASP.HHZ. 2015-09-09T20:26:33.27 0.1 positive manual P 187 50.3163 50 -0.67 82
IV.CSNT.HHZ. 2015-09-09T20:26:31.47 0.1 positive manual P 47 37.9287 98 -0.2 95
IV.OSSC.HHZ. 2015-09-09T20:26:31.88 0.1 positive manual P 38 39.627 97 -0.12 96
IV.FROS.HHZ. 2015-09-09T20:26:30.15 0.3 undecidable manual S 101 17.3715 106 -0.14 75
IV.TRIF.HHZ. 2015-09-09T20:26:29.28 0.6 undecidable manual S 194 14.3745 110 -0.02 51
IV.TRIF.HHZ. 2015-09-09T20:26:27.22 0.1 undecidable manual P 194 14.3745 110 0.16 100
IV.FROS.HHZ. 2015-09-09T20:26:27.92 0.1 positive manual P 101 17.3715 106 0.29 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARCI.HHE. ML:2.0 0.000219 1.08 AML other m 2015-09-09T20:26:43.77
IV.ARCI.HHN. ML:2.1 0.0002665 1.08 AML other m 2015-09-09T20:26:46.82
IV.ASQU.HHN. ML:1.8 0.0000781 1.34 AML other m 2015-09-09T20:26:55.61
IV.ASQU.HHE. ML:1.9 0.00008979999999999999 1.48 AML other m 2015-09-09T20:26:57.07
IV.BDI.HHE. ML:1.9 0.0000843 0.26 AML other m 2015-09-09T20:26:56.25
IV.BDI.HHN. ML:1.9 0.00008774999999999999 1.08 AML other m 2015-09-09T20:26:55.83
IV.CAFI.HHE. ML:1.6 0.000048 0.62 AML other m 2015-09-09T20:26:42.47
IV.CAFI.HHN. ML:1.5 0.00004645 1.42 AML other m 2015-09-09T20:26:44.23
GU.CARD.HHE. ML:2.1 0.000131 0.46 AML other m 2015-09-09T20:26:55.31
GU.CARD.HHN. ML:2.0 0.0001125 0.44 AML other m 2015-09-09T20:26:57.85
IV.CASP.HHE. ML:2.3 0.0005745 0.34 AML other m 2015-09-09T20:26:44.21
IV.CASP.HHN. ML:2.4 0.000657 0.22 AML other m 2015-09-09T20:26:40.07
IV.CELB.HHE. ML:2.4 0.0003105 0.94 AML other m 2015-09-09T20:26:52.23
IV.CELB.HHN. ML:2.4 0.000305 0.46 AML other m 2015-09-09T20:26:53.60
IV.CSNT.HHN. ML:2.2 0.000583 0.28 AML other m 2015-09-09T20:26:37.20
IV.CSNT.HHE. ML:2.1 0.0005275 0.72 AML other m 2015-09-09T20:26:37.58
IV.FROS.HHE. ML:2.4 0.002165 1.24 AML other m 2015-09-09T20:26:32.83
IV.FROS.HHN. ML:2.5 0.002875 0.62 AML other m 2015-09-09T20:26:32.85
GU.MAIM.HHN. ML:1.8 0.0000742 0.38 AML other m 2015-09-09T20:26:57.00
GU.MAIM.HHE. ML:1.9 0.00009384999999999999 0.24 AML other m 2015-09-09T20:26:50.11
IV.MAON.HHE. ML:2.6 0.000437 0.22 AML other m 2015-09-09T20:26:52.55
IV.MAON.HHN. ML:2.5 0.000376 0.48 AML other m 2015-09-09T20:26:41.22
IV.MCIV.HHN. ML:1.8 0.0000988 0.34 AML other m 2015-09-09T20:26:52.73
IV.MCIV.HHE. ML:1.9 0.0001085 0.24 AML other m 2015-09-09T20:26:40.91
IV.OSSC.HNE. ML:2.2 0.0006285 0.38 AML other m 2015-09-09T20:26:38.50
IV.OSSC.HNN. ML:2.3 0.000661 0.4 AML other m 2015-09-09T20:26:38.73
IV.OSSC.HHE. ML:2.3 0.0006685 1.08 AML other m 2015-09-09T20:26:38.19
IV.OSSC.HHN. ML:2.2 0.0006439999999999999 0.38 AML other m 2015-09-09T20:26:38.50
IV.PII.HHE. ML:2.4 0.0004845 0.24 AML other m 2015-09-09T20:26:45.82
IV.PII.HHN. ML:2.4 0.000441 0.36 AML other m 2015-09-09T20:26:45.62
IV.SEI.HHE. ML:2.2 0.000174 0.44 AML other m 2015-09-09T20:27:00.51
IV.SEI.HHN. ML:2.4 0.000249 0.38 AML other m 2015-09-09T20:26:48.26
IV.SSP9.EHE. ML:2.0 0.00008499999999999997 1.5 AML other m 2015-09-09T20:27:02.66
IV.SSP9.EHN. ML:2.0 0.00009649999999999997 1.36 AML other m 2015-09-09T20:27:06.75
IV.TRIF.HHN. ML:3.1 0.0149 0.12 AML other m 2015-09-09T20:26:29.41
IV.TRIF.HHE. ML:3.2 0.01685 0.1 AML other m 2015-09-09T20:26:30.12
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