Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 16-08-2009 and time 22:52:07 (UTC) in region Confine Italia Francia (FRANCIA)

A magnitude ML 2.4 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 16-08-2009 22:52:07 (UTC)
  • 17-08-2009 00:52:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.8610, 6.7720 at 3 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.

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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 9 214 214
Cesana Torinese TO 10 967 1181
Sauze di Cesana TO 11 244 1425
Sestriere TO 14 929 2354
Oulx TO 20 3307 5661
Sauze d'Oulx TO 20 1109 6770

Municipalities with at least 50000 inhabitants

An earthquake occurred to
74 Km W of Moncalieri (57294 inhabitants)
75 Km W of Torino (890529 inhabitants)
81 Km NW of Cuneo (56081 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 2.9
ML 2.4 		2009-08-16
22:52:07		 44.861 6.772 3 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 949899
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-08-16 22:52:07 ± 0.28
Latitude 44.8610 ± 0.0099
Longitude 6.7720 ± 0.0216
Depth (km) 3 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 949899

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1842
Semi-minor axis of confidence ellipse (meter) 947
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 245
Circular confidence region, given by single value of horizontal uncertainty (meter) 2024.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 205
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.78
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.45420
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 949899
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:07:36

Md:2.9

Field Value
Value 2.9
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 949899
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 18:07:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FSSB.HHE. 2009-08-16T22:53:53.84 10.0 undecidable manual Sg 0 0 0
IV.CRAC.EHE. 2009-08-16T22:53:36.36 10.0 undecidable manual Pg 0 0 0
IV.MABI.HHE. 2009-08-16T22:53:36.33 10.0 undecidable manual Pg 0 0 0
IV.FAGN.HHZ. 2009-08-16T22:53:32.74 10.0 undecidable manual Pg 0 0 0
CH.FUORN.HHN. 2009-08-16T22:53:32.22 10.0 undecidable manual Pg 0 0 0
IV.HCRL.HHN. 2009-08-16T22:53:25.12 10.0 undecidable manual Pg 0 0 0
IV.PRMA.HHE. 2009-08-16T22:53:25.76 10.0 undecidable manual Pg 0 0 0
IV.BOB.HHE. 2009-08-16T22:53:14.61 10.0 undecidable manual Pg 0 0 0
IV.FSSB.HHE. 2009-08-16T22:53:13.43 10.0 undecidable manual Pg 0 0 0
IV.CTI.EHE. 2009-08-16T22:53:11.52 10.0 undecidable manual Pg 0 0 0
IV.SEI.SHZ. 2009-08-16T22:53:09.19 10.0 undecidable manual Pg 0 0 0
CH.MUGIO.HHN. 2009-08-16T22:53:07.69 10.0 undecidable manual Pg 0 0 0
IV.GSCL.SHZ. 2009-08-16T22:53:00.22 10.0 undecidable manual Pg 0 0 0
CH.BERNI.HHE. 2009-08-16T22:52:56.40 10.0 undecidable manual Sg 0 0 0
IV.NRCA.HHE. 2009-08-16T22:52:55.70 10.0 undecidable manual Pg 0 0 0
CH.BERNI.HHE. 2009-08-16T22:52:51.50 10.0 undecidable manual Pg 0 0 0
CH.FUSIO.HHE. 2009-08-16T22:52:48.09 10.0 undecidable manual Pg 0 0 0
IV.QLNO.HHN. 2009-08-16T22:52:48.08 1.0 undecidable manual Sg 115 137.862 -0.041 21
GU.SC2M.HHN. 2009-08-16T22:52:47.36 10.0 undecidable manual Pg 0 0 0
GU.RORO.HHN. 2009-08-16T22:52:46.47 0.6 undecidable manual Sg 129 131.868 -0.052 42
CH.BNALP.HHN. 2009-08-16T22:52:45.54 10.0 undecidable manual Pg 0 0 0
IV.MRGE.HHZ. 2009-08-16T22:52:39.11 0.1 undecidable manual Sg 13 103.3188 0.219 85
CH.DIX.HHE. 2009-08-16T22:52:38.61 10.0 undecidable manual Sg 0 0 0
GU.TRAV.HHN. 2009-08-16T22:52:38.90 0.3 undecidable manual Sg 46 105.117 -0.466 61
CH.MMK.HHN. 2009-08-16T22:52:35.55 0.6 undecidable manual Pg 35 161.4162 1.172 26
CH.EMV.HHZ. 2009-08-16T22:52:35.34 10.0 undecidable manual Pg 0 0 0
CH.DIX.HHE. 2009-08-16T22:52:33.86 10.0 undecidable manual Pg 0 0 0
GU.PCP.HHE. 2009-08-16T22:52:32.41 0.3 undecidable manual Pg 104 144.2445 0.681 51
GU.FINB.HHZ. 2009-08-16T22:52:32.49 0.3 undecidable manual Pg 121 144.4443 0.747 50
IV.QLNO.HHN. 2009-08-16T22:52:31.41 0.3 undecidable manual Pg 115 137.862 0.665 52
GU.RORO.HHN. 2009-08-16T22:52:30.04 0.3 undecidable manual Pg 129 131.868 0.221 60
IV.ORO.SHZ. 2009-08-16T22:52:30.34 0.6 undecidable manual Pg 48 127.0728 1.271 27
IV.MRGE.HHZ. 2009-08-16T22:52:25.29 0.1 undecidable manual Pg 13 103.3188 -0.123 87
IV.MONC.HHE. 2009-08-16T22:52:25.44 0.3 undecidable manual Pg 75 93.7395 1.503 38
GU.TRAV.HHN. 2009-08-16T22:52:25.95 0.3 undecidable manual Pg 46 105.117 0.267 63
IV.DOI.HHZ. 2009-08-16T22:52:24.55 0.1 undecidable manual Sg 136 54.501 -1.316 61
GU.RSP.HHZ. 2009-08-16T22:52:23.84 0.1 undecidable manual Sg 50 50.1165 -0.585 86
GU.RSP.HHZ. 2009-08-16T22:52:17.12 0.1 undecidable manual Pg 50 50.1165 0.055 98
IV.DOI.HHZ. 2009-08-16T22:52:17.23 0.1 undecidable manual Pg 136 54.501 -0.664 83
MN.BNI.HHN. 2009-08-16T22:52:14.69 0.1 undecidable manual Sg 341 22.5552 -0.196 100
MN.BNI.HHN. 2009-08-16T22:52:11.14 0.1 undecidable manual Pg 341 22.5552 -0.411 96
IV.CDCA.EHE. 2009-08-16T22:52:10.77 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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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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