Earthquake with magnitude of ML 1.3 on date 31-05-2014 and time 11:26:08 (UTC) in region 6 km NW Castelnuovo di Val di Cecina (PI)

A magnitude ML 1.3 earthquake occured in region: 6 km NW Castelnuovo di Val di Cecina (PI), on

  • 31-05-2014 11:26:08 (UTC)
  • 31-05-2014 13:26:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2480, 10.8640 at 8 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 6 2231 2231
Pomarance PI 6 5897 8128
Monterotondo Marittimo GR 11 1371 9499
Monteverdi Marittimo PI 14 758 10257
Radicondoli SI 15 914 11171
Volterra PI 17 10519 21690
Casole d'Elsa SI 18 3897 25587
Montieri GR 18 1204 26791
Montecatini Val di Cecina PI 19 1749 28540

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km W of Siena (53903 inhabitants)
56 Km SE of Livorno (159219 inhabitants)
58 Km NW of Grosseto (82087 inhabitants)
62 Km SW of Scandicci (50609 inhabitants)
64 Km SE of Pisa (89158 inhabitants)
66 Km SW of Firenze (382808 inhabitants)
73 Km SE of Lucca (89046 inhabitants)
73 Km S of Prato (191150 inhabitants)
76 Km S of Pistoia (90315 inhabitants)
85 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
Bulletin
Rev1000
ML 1.3 2014-05-31
11:26:08
43.2482 10.8642 8 2015-09-21
09:36:50
Bollettino Sismico Italiano INGV 17452961
Reviewed
Rev100
ML 1.3 2014-05-31
11:26:08
43.2438 10.8545 8 2014-10-21
12:08:56
Sala Sismica INGV-Roma 6663291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-05-31 11:26:08 ± 0.18
Latitude 43.2482 ± 0.0063
Longitude 10.8642 ± 0.0148
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 17452961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1054
Semi-minor axis of confidence ellipse (meter) 754
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 110
Circular confidence region, given by single value of horizontal uncertainty (meter) 1050.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.13580
Epicentral distance of station farthest from the epicenter (degree) 0.84266
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 5
Type of magnitude ML
Reference to an origin 17452961
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-03-09 22:43:19

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 5
Type of magnitude ML
Reference to an origin 6663291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-05-31 11:35:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MAON.HHZ. 2014-05-31T11:26:37.12 0.3 undecidable manual S 166 93.5397 50 0.23 63
GU.MAIM.HHZ. 2014-05-31T11:26:31.92 0.6 undecidable manual S 338 79.7646 50 -1.3 28
IV.CRMI.HHZ. 2014-05-31T11:26:28.14 0.3 undecidable manual S 9 61.3941 50 -0.19 67
IV.MAON.HHZ. 2014-05-31T11:26:26.08 0.3 undecidable manual P 166 93.5397 50 1.07 46
IV.CASP.HHZ. 2014-05-31T11:26:24.58 0.6 undecidable manual S 180 50.7159 50 -0.9 36
GU.POPM.HHZ. 2014-05-31T11:26:24.84 0.3 undecidable manual P 354 88.8444 50 0.55 58
GU.MAIM.HHZ. 2014-05-31T11:26:23.03 0.3 undecidable manual P 338 79.7646 50 0.14 65
IV.OSSC.HHZ. 2014-05-31T11:26:23.18 0.6 undecidable manual S 45 43.3233 50 -0.33 45
IV.CELB.HHZ. 2014-05-31T11:26:22.61 0.3 undecidable manual P 224 76.8675 50 0.17 66
IV.CRMI.HHZ. 2014-05-31T11:26:20.22 0.1 undecidable manual P 9 61.3941 50 0.15 90
IV.PII.HHZ. 2014-05-31T11:26:19.52 0.6 undecidable manual P 333 59.1963 50 -0.21 45
IV.CASP.HHZ. 2014-05-31T11:26:18.25 0.3 undecidable manual P 180 50.7159 50 -0.17 69
IV.FROS.HHZ. 2014-05-31T11:26:17.38 0.1 undecidable manual S 100 23.9538 108 -0.16 96
IV.OSSC.HHZ. 2014-05-31T11:26:17.37 0.1 positive manual P 45 43.3233 50 0.09 94
IV.FROS.HHZ. 2014-05-31T11:26:14.06 0.1 undecidable manual P 100 23.9538 108 0.23 95
IV.TRIF.HHZ. 2014-05-31T11:26:14.21 0.3 undecidable manual S 168 15.0738 118 -0.48 69
IV.TRIF.HHZ. 2014-05-31T11:26:12.24 0.1 undecidable manual P 168 15.0738 118 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CASP.HHE. ML:1.1 0.0000361 1.2 AML other m 2014-05-31T11:26:27.38
IV.CASP.HHN. ML:1.2 0.0000473 0.98 AML other m 2014-05-31T11:26:29.78
IV.CRMI.HHE. ML:0.9 0.0000128 0.16 AML other m 2014-05-31T11:26:28.98
IV.CRMI.HHN. ML:0.7 0.0000102 0.86 AML other m 2014-05-31T11:26:28.49
IV.FROS.HHE. ML:1.6 0.00027049999999999996 0.68 AML other m 2014-05-31T11:26:17.82
IV.FROS.HHN. ML:1.5 0.000189 0.72 AML other m 2014-05-31T11:26:18.43
IV.OSSC.HHE. ML:1.2 0.0000449 1.58 AML other m 2014-05-31T11:26:17.52
IV.OSSC.HHN. ML:1.2 0.0000544 0.16 AML other m 2014-05-31T11:26:17.53
IV.TRIF.HHE. ML:2.0 0.0010725 1.18 AML other m 2014-05-31T11:26:14.59
IV.TRIF.HHN. ML:1.9 0.0007869999999999999 0.98 AML other m 2014-05-31T11:26:15.18
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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