Earthquake with magnitude of ML 1.9 on date 06-10-2009 and time 20:06:18 (UTC) in region 1 km NE Chiusdino (SI)

A magnitude ML 1.9 earthquake occured in region: 1 km NE Chiusdino (SI), on

  • 06-10-2009 20:06:18 (UTC)
  • 06-10-2009 22:06:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1600, 11.0960 at 9 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 1 1903 1903
Montieri GR 7 1204 3107
Monticiano SI 7 1571 4678
Radicondoli SI 12 914 5592
Castelnuovo di Val di Cecina PI 16 2231 7823
Sovicille SI 17 10116 17939
Roccastrada GR 18 9199 27138
Monterotondo Marittimo GR 20 1371 28509

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km SW of Siena (53903 inhabitants)
44 Km N of Grosseto (82087 inhabitants)
67 Km S of Scandicci (50609 inhabitants)
69 Km S of Firenze (382808 inhabitants)
72 Km W of Arezzo (99543 inhabitants)
77 Km SE of Livorno (159219 inhabitants)
80 Km S of Prato (191150 inhabitants)
84 Km SE of Pisa (89158 inhabitants)
87 Km S of Pistoia (90315 inhabitants)
90 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 1.9
2009-10-06
20:06:18
43.16 11.096 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 973959
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-10-06 20:06:18 ± 0.12
Latitude 43.1600 ± 0.0054
Longitude 11.0960 ± 0.0099
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 973959

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 673
Semi-minor axis of confidence ellipse (meter) 611
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 276
Circular confidence region, given by single value of horizontal uncertainty (meter) 1000.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.11156
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 973959
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:37:23

Md:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 973959
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:37:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
BA.PZUN.HHE. 2009-10-06T20:07:06.84 10.0 undecidable manual Pg 0 0 0
IV.MAON.HHZ. 2009-10-06T20:06:44.24 0.6 undecidable manual Sg 178 81.1521 0.648 37
IV.FSSB.SHZ. 2009-10-06T20:06:43.81 10.0 undecidable manual Pg 0 0 0
IV.PII.SHZ. 2009-10-06T20:06:42.65 0.6 undecidable manual Sg 324 77.4669 0.03 44
IV.PIEI.HHE. 2009-10-06T20:06:39.78 0.3 undecidable manual Pg 70 123.3876 0.092 60
IV.MURB.HHE. 2009-10-06T20:06:39.54 10.0 undecidable manual Pg 0 0 0
IV.FNVD.HHZ. 2009-10-06T20:06:38.57 0.6 undecidable manual Pg 1 111.8991 0.649 35
IV.SEI.SHZ. 2009-10-06T20:06:38.09 10.0 undecidable manual Pg 0 0 0
IV.BDI.HHZ. 2009-10-06T20:06:37.20 0.3 undecidable manual Pg 338 107.9142 -0.103 61
IV.PARC.HHZ. 2009-10-06T20:06:37.00 0.3 undecidable manual Pg 59 106.9152 -0.151 61
IV.PZZT.HHN. 2009-10-06T20:06:37.59 0.6 undecidable manual Pg 350 109.4127 0.049 41
IV.SFI.EHZ. 2009-10-06T20:06:36.39 0.3 undecidable manual Pg 36 102.4197 -0.067 63
IV.VMG.SHZ. 2009-10-06T20:06:36.05 0.3 undecidable manual Pg 22 96.0261 0.574 56
IV.BADI.EHZ. 2009-10-06T20:06:36.04 0.3 undecidable manual Pg 67 100.4217 -0.123 62
IV.ZCCA.HHZ. 2009-10-06T20:06:34.81 10.0 undecidable manual Pg 0 0 0
IV.MGAB.HHZ. 2009-10-06T20:06:34.22 0.6 undecidable manual Pg 108 86.8464 0.159 42
IV.ASQU.HHZ. 2009-10-06T20:06:34.42 0.1 undecidable manual Pg 38 90.0432 -0.137 84
IV.LATE.HHE. 2009-10-06T20:06:34.35 0.3 undecidable manual Pg 136 83.5497 0.798 53
IV.ARCI.HHZ. 2009-10-06T20:06:33.76 0.6 undecidable manual Sg 138 45.9207 -0.435 43
IV.MAON.HHZ. 2009-10-06T20:06:33.77 0.1 undecidable manual Pg 178 81.1521 0.584 77
IV.CASP.HHZ. 2009-10-06T20:06:33.35 0.3 undecidable manual Sg 205 45.0216 -0.586 62
IV.CRE.HHZ. 2009-10-06T20:06:33.81 0.3 undecidable manual Pg 53 85.7475 -0.083 64
IV.PII.SHZ. 2009-10-06T20:06:32.90 0.3 undecidable manual Pg 324 77.4669 0.272 63
IV.SACS.HHN. 2009-10-06T20:06:32.39 0.6 undecidable manual Pg 117 74.4699 0.237 43
IV.CRMI.HHZ. 2009-10-06T20:06:31.11 0.3 undecidable manual Pg 352 70.6737 -0.462 61
IV.CAFI.HHZ. 2009-10-06T20:06:31.48 0.1 undecidable manual Pg 75 72.7716 -0.422 82
IV.CASP.HHZ. 2009-10-06T20:06:27.47 0.1 undecidable manual Pg 205 45.0216 -0.146 92
IV.ARCI.HHZ. 2009-10-06T20:06:27.28 0.3 undecidable manual Pg 138 45.9207 -0.481 64
IV.GRFL.SHZ. 2009-10-06T20:06:23.45 0.3 undecidable manual Sg 262 9.879 -0.122 73
IV.GRFL.SHZ. 2009-10-06T20:06:21.65 0.1 undecidable manual Pg 262 9.879 0.017 100
IV.GSCL.SHZ. 2009-10-06T20:06:08.35 10.0 undecidable manual Pg 0 0 0
IV.PRMA.HHN. 2009-10-06T20:06:06.53 10.0 undecidable manual Pg 0 0 0
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