Earthquake with magnitude of ML 1.6 on date 17-08-2009 and time 23:40:59 (Italy) in region Confine Italia Francia (FRANCIA)

A magnitude ML 1.6 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 17-08-2009 21:40:59 (UTC)
  • 17-08-2009 23:40:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.8150, 6.7160 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
Claviere TO 14 214 214
Cesana Torinese TO 17 967 1181
Sauze di Cesana TO 18 244 1425

Municipalities with at least 50000 inhabitants

An earthquake occurred to
79 Km W of Moncalieri (57294 inhabitants)
81 Km NW of Cuneo (56081 inhabitants)
81 Km W of Torino (890529 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
ML 1.6
2009-08-17
21:40:59
44.815 6.716 5 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 950509
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-08-17 21:40:59 ± 0.44
Latitude 44.8150 ± 0.0144
Longitude 6.7160 ± 0.0254
Depth (km) 5 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 950509

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2269
Semi-minor axis of confidence ellipse (meter) 614
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 238
Circular confidence region, given by single value of horizontal uncertainty (meter) 2561.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 224
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.71
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.89483
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 950509
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:08:21

Md:2.3

Field Value
Value 2.3
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 950509
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:08:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MONC.HHZ. 2009-08-17T21:41:30.66 0.1 undecidable manual Sg 73 99.3228 0.622 78
GU.LSD.HHN. 2009-08-17T21:41:23.69 0.1 undecidable manual Sg 24 78.5658 -0.819 74
GU.TRAV.HHZ. 2009-08-17T21:41:19.75 10.0 undecidable manual Pg 0 0 0
IV.ILLI.HHZ. 2009-08-17T21:41:19.95 10.0 undecidable manual Pg 0 0 0
GU.RSP.HHZ. 2009-08-17T21:41:18.81 0.1 undecidable manual Sg 49 56.7987 0.139 95
IV.MONC.HHZ. 2009-08-17T21:41:18.71 0.1 undecidable manual Pg 73 99.3228 1.486 51
IV.DOI.HHZ. 2009-08-17T21:41:17.33 0.1 undecidable manual Sg 129 54.2013 -0.676 83
GU.BHB.HHZ. 2009-08-17T21:41:14.40 0.1 undecidable manual Sg 87 43.1235 -0.389 93
GU.LSD.HHN. 2009-08-17T21:41:14.07 0.1 undecidable manual Pg 24 78.5658 0.037 93
IV.DOI.HHZ. 2009-08-17T21:41:10.25 0.1 undecidable manual Pg 129 54.2013 -0.03 98
GU.RSP.HHZ. 2009-08-17T21:41:10.73 0.1 undecidable manual Pg 49 56.7987 0.061 97
MN.BNI.HHZ. 2009-08-17T21:41:08.85 0.1 undecidable manual Sg 353 26.5512 -0.25 98
GU.BHB.HHZ. 2009-08-17T21:41:08.62 0.1 positive manual Pg 87 43.1235 0.195 97
MN.BNI.HHZ. 2009-08-17T21:41:05.31 0.1 undecidable manual Pg 353 26.5512 0.173 100
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