Earthquake with magnitude of Md 2.4 on date 11-04-2005 and time 20:55:03 (Italy) in region 3 km SW Pomarance (PI)

A magnitude Md 2.4 earthquake occured in region: 3 km SW Pomarance (PI), on

  • 11-04-2005 18:55:03 (UTC)
  • 11-04-2005 20:55:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2780, 10.8460 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.

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
Volterra PI 14 10519 18647
Monterotondo Marittimo GR 15 1371 20018
Montecatini Val di Cecina PI 15 1749 21767
Monteverdi Marittimo PI 15 758 22525
Radicondoli SI 16 914 23439
Casole d'Elsa SI 18 3897 27336
Guardistallo PI 18 1234 28570
Montescudaio PI 18 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)
53 Km SE of Livorno (159219 inhabitants)
60 Km SW of Scandicci (50609 inhabitants)
61 Km SE of Pisa (89158 inhabitants)
62 Km NW of Grosseto (82087 inhabitants)
64 Km SW of Firenze (382808 inhabitants)
69 Km SE of Lucca (89046 inhabitants)
70 Km SW of Prato (191150 inhabitants)
73 Km S of Pistoia (90315 inhabitants)
81 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
Md 2.4
ML-VAX 2.3
2005-04-11
18:55:03
43.278 10.846 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 514009
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2005-04-11 18:55:03 ± 0.31
Latitude 43.2780 ± 0.0139
Longitude 10.8460 ± 0.0241
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 514009

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 2491.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 188
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00138
Epicentral distance of station farthest from the epicenter (degree) 0.01198
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 514009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 01:13:21

ML:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 514009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.GSCL.Z. 2005-04-11T18:55:41.60 10.0 undecidable manual SN 350 1.0767 -0.21 0.5
--.SEI.Z. 2005-04-11T18:55:33.75 10.0 undecidable manual SG 25 0.8547 -0.28 0.6
--.VMG.Z. 2005-04-11T18:55:33.55 10.0 undecidable manual SG 36 0.8436 -0.16 0.6
--.ASS.Z. 2005-04-11T18:55:29.59 10.0 undecidable manual PN 98 1.332 0.88 0.3
--.ZCCA.Z. 2005-04-11T18:55:26.36 10.0 undecidable manual PG 5 1.0656 1.17 0.1
--.GSCL.Z. 2005-04-11T18:55:25.54 10.0 undecidable manual PN 350 1.0767 0.2 1.3
--.SFI.Z. 2005-04-11T18:55:22.89 10.0 undecidable manual PG 48 0.9546 -0.09 1.5
--.FNVD.Z. 2005-04-11T18:55:22.27 10.0 undecidable manual PG 12 0.9102 0.16 1.5
--.PGD.Z. 2005-04-11T18:55:21.45 10.0 undecidable manual PG 46 0.8658 0.09 1.5
--.SEI.Z. 2005-04-11T18:55:21.21 10.0 undecidable manual PG 25 0.8547 0.05 1.6
--.VMG.Z. 2005-04-11T18:55:21.28 10.0 undecidable manual PG 36 0.8436 0.31 1.3
--.PII.Z. 2005-04-11T18:55:20.85 10.0 undecidable manual SG 332 0.4995 -1.64 0
--.CSNT.E. 2005-04-11T18:55:17.56 10.0 undecidable manual SG 58 0.3663 -0.64 0.3
--.PII.Z. 2005-04-11T18:55:14.10 10.0 undecidable manual PG 332 0.4995 -0.48 1.1
--.CSNT.Z. 2005-04-11T18:55:11.80 10.0 positive manual PG 58 0.3663 -0.22 3.1
--.GRFL.Z. 2005-04-11T18:55:09.18 10.0 undecidable manual SG 144 0.1554 -0.84 0.2
--.GRFL.Z. 2005-04-11T18:55:06.93 10.0 undecidable manual PG 144 0.1554 -0.36 1.4
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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