Earthquake with magnitude of Md 2.3 on date 15-04-2005 and time 23:09:07 (Italy) in region 4 km S Castelnuovo Berardenga (SI)

A magnitude Md 2.3 earthquake occured in region: 4 km S Castelnuovo Berardenga (SI), on

  • 15-04-2005 21:09:07 (UTC)
  • 15-04-2005 23:09:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3130, 11.5040 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
Castelnuovo Berardenga SI 4 9097 9097
Rapolano Terme SI 9 5249 14346
Asciano SI 10 7118 21464
Monteroni d'Arbia SI 11 9088 30552
Siena SI 14 53903 84455
Monte San Savino AR 18 8743 93198
Gaiole in Chianti SI 18 2758 95956
Murlo SI 18 2389 98345
San Giovanni d'Asso SI 19 853 99198
Trequanda SI 19 1254 100452
Buonconvento SI 19 3173 103625

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Siena (53903 inhabitants)
35 Km W of Arezzo (99543 inhabitants)
55 Km SE of Firenze (382808 inhabitants)
56 Km SE of Scandicci (50609 inhabitants)
69 Km NE of Grosseto (82087 inhabitants)
71 Km SE of Prato (191150 inhabitants)
75 Km W of Perugia (166134 inhabitants)
84 Km SE of Pistoia (90315 inhabitants)
100 Km E of Pisa (89158 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 2.3 2005-04-15
21:09:07
43.313 11.504 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 514239
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2005-04-15 21:09:07 ± 0.259
Latitude 43.3130 ± 0.0131
Longitude 11.5040 ± 0.0215
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 514239

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) 2271.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00372
Epicentral distance of station farthest from the epicenter (degree) 0.00955
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 514239
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 01:13:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ASS.Z. 2005-04-15T21:09:39.14 10.0 undecidable manual SG 105 0.8769 0.57 0.5
--.VMG.Z. 2005-04-15T21:09:31.10 10.0 undecidable manual SG 2 0.6438 -0.26 0.8
--.SFI.Z. 2005-04-15T21:09:30.49 10.0 undecidable manual SG 22 0.6327 -0.61 0.6
--.ARV.Z. 2005-04-15T21:09:29.55 10.0 undecidable manual PG 79 1.0656 0.55 1.2
--.PGD.Z. 2005-04-15T21:09:28.33 10.0 undecidable manual SG 15 0.5772 -0.93 0.3
--.FSSB.Z. 2005-04-15T21:09:27.94 10.0 undecidable manual PG 66 0.9879 0.13 1.7
--.SACS.E. 2005-04-15T21:09:27.16 10.0 undecidable manual SG 146 0.5439 -1.04 0.3
--.ASS.Z. 2005-04-15T21:09:26.23 10.0 undecidable manual PG 105 0.8769 0.72 1
--.GRFL.Z. 2005-04-15T21:09:22.94 10.0 undecidable manual SG 246 0.4107 -0.97 0.3
--.VMG.Z. 2005-04-15T21:09:21.60 10.0 undecidable manual PG 2 0.6438 0.26 2
--.PGD.Z. 2005-04-15T21:09:20.28 10.0 undecidable manual PG 15 0.5772 0.15 2.1
--.SFI.Z. 2005-04-15T21:09:20.77 10.0 undecidable manual PG 22 0.6327 -0.42 1.8
--.GRFL.Z. 2005-04-15T21:09:18.20 10.0 undecidable manual PG 246 0.4107 0.98 0.7
--.SACS.Z. 2005-04-15T21:09:18.49 10.0 undecidable manual PG 146 0.5439 -1.02 0.7
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
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