Earthquake with magnitude of ML 1.4 on date 18-06-2006 and time 16:10:46 (Italy) in region 4 km NW Chiusdino (SI)

A magnitude ML 1.4 earthquake occured in region: 4 km NW Chiusdino (SI), on

  • 18-06-2006 14:10:46 (UTC)
  • 18-06-2006 16:10:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1790, 11.0510 at 6 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
Chiusdino SI 4 1903 1903
Montieri GR 6 1204 3107
Radicondoli SI 9 914 4021
Monticiano SI 11 1571 5592
Castelnuovo di Val di Cecina PI 12 2231 7823
Monterotondo Marittimo GR 16 1371 9194
Casole d'Elsa SI 18 3897 13091
Sovicille SI 18 10116 23207
Massa Marittima GR 19 8375 31582
Pomarance PI 20 5897 37479

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km SW of Siena (53903 inhabitants)
47 Km N of Grosseto (82087 inhabitants)
65 Km S of Scandicci (50609 inhabitants)
68 Km S of Firenze (382808 inhabitants)
73 Km SE of Livorno (159219 inhabitants)
75 Km W of Arezzo (99543 inhabitants)
78 Km S of Prato (191150 inhabitants)
80 Km SE of Pisa (89158 inhabitants)
85 Km S of Pistoia (90315 inhabitants)
86 Km SE of Lucca (89046 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 1.7
ML 1.4
2006-06-18
14:10:46
43.179 11.051 6 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 574309
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2006-06-18 14:10:46 ± 0.13
Latitude 43.1790 ± 0.0081
Longitude 11.0510 ± 0.0123
Depth (km) 6 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 574309

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1105
Semi-minor axis of confidence ellipse (meter) 684
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 52
Circular confidence region, given by single value of horizontal uncertainty (meter) 1345.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 151
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 6
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) 0.45056
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 574309
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:01:00

Md:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 574309
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:01:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SBPO.BHN. 2006-06-18T14:11:22.00 10.0 undecidable manual Pg 0 0 0
IV.PESA.EHZ. 2006-06-18T14:11:16.39 10.0 undecidable manual Pg 0 0 0
IV.ARCI.HHE. 2006-06-18T14:11:03.19 0.1 undecidable manual Sg 136 50.0166 -0.446 42
IV.CSNT.BHN. 2006-06-18T14:10:59.88 0.1 undecidable manual Sg 31 37.9287 -0.208 46
IV.ARCI.HHE. 2006-06-18T14:10:56.81 0.1 undecidable manual Pg 136 50.0166 0.308 87
IV.CSNT.BHN. 2006-06-18T14:10:54.53 0.1 undecidable manual Pg 31 37.9287 0.081 94
IV.GRFL.SHZ. 2006-06-18T14:10:49.84 0.1 undecidable manual Sg 240 7.0929 -0.163 49
IV.GRFL.SHZ. 2006-06-18T14:10:48.65 0.1 positive manual Pg 240 7.0929 0.021 100
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