Earthquake with magnitude of ML 1.8 on date 04-09-2006 and time 00:35:26 (Italy) in region 2 km SW Chiusdino (SI)

A magnitude ML 1.8 earthquake occured in region: 2 km SW Chiusdino (SI), on

  • 03-09-2006 22:35:26 (UTC)
  • 04-09-2006 00:35:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1390, 11.0700 at 10 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 2 1903 1903
Montieri GR 4 1204 3107
Monticiano SI 9 1571 4678
Radicondoli SI 14 914 5592
Castelnuovo di Val di Cecina PI 15 2231 7823
Roccastrada GR 16 9199 17022
Monterotondo Marittimo GR 17 1371 18393
Massa Marittima GR 18 8375 26768

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SW of Siena (53903 inhabitants)
42 Km N of Grosseto (82087 inhabitants)
70 Km S of Scandicci (50609 inhabitants)
72 Km S of Firenze (382808 inhabitants)
75 Km W of Arezzo (99543 inhabitants)
77 Km SE of Livorno (159219 inhabitants)
83 Km S of Prato (191150 inhabitants)
84 Km SE of Pisa (89158 inhabitants)
89 Km S of Pistoia (90315 inhabitants)
91 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 2.4
ML 1.8
2006-09-03
22:35:26
43.139 11.07 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 590219
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2006-09-03 22:35:26 ± 0.3
Latitude 43.1390 ± 0.0144
Longitude 11.0700 ± 0.0394
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 590219

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3263
Semi-minor axis of confidence ellipse (meter) 1526
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 97
Circular confidence region, given by single value of horizontal uncertainty (meter) 3577.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 150
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.06
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.21319
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 590219
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:17:38

Md:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 590219
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:17:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ZCCA.SHZ. 2006-09-03T22:35:51.02 0.1 undecidable manual Pg 357 134.6652 2.459 20
IV.MAON.HHZ. 2006-09-03T22:35:50.21 0.3 undecidable manual Sg 176 78.9654 0.182 35
IV.SFI.SHZ. 2006-09-03T22:35:44.64 0.1 undecidable manual Pg 36 105.5166 0.575 80
IV.PZZT.HHN. 2006-09-03T22:35:44.91 0.1 undecidable manual Pg 351 111.3996 -0.067 90
IV.CRE.SHZ. 2006-09-03T22:35:42.29 0.1 undecidable manual Pg 53 88.8444 0.791 76
IV.ARCI.HHE. 2006-09-03T22:35:40.55 0.1 undecidable manual Sg 134 45.7209 -0.618 44
IV.MAON.HHZ. 2006-09-03T22:35:40.11 0.1 undecidable manual Pg 176 78.9654 0.13 94
IV.PII.SHZ. 2006-09-03T22:35:39.28 0.3 undecidable manual Pg 326 78.1662 -0.578 64
IV.CSNT.BHE. 2006-09-03T22:35:38.99 0.1 undecidable manual Sg 26 41.1255 -0.937 39
IV.ARCI.HHE. 2006-09-03T22:35:34.72 0.1 undecidable manual Pg 134 45.7209 -0.143 100
IV.CSNT.BHE. 2006-09-03T22:35:33.53 0.1 positive manual Pg 26 41.1255 -0.617 89
IV.ORI.EHZ. 2006-09-03T22:35:18.29 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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