Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 23-01-2013 and time 01:53:08 (UTC) in region 5 km W Rhêmes Saint Georges (AO)

A magnitude ML 1.2 earthquake occured in region: 5 km W Rhêmes Saint Georges (AO), on

  • 23-01-2013 01:53:08 (UTC)
  • 23-01-2013 02:53:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.6760, 7.1020 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.

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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
Rhêmes-Saint-Georges AO 5 194 194
Avise AO 5 305 499
Valgrisenche AO 6 196 695
Arvier AO 6 873 1568
Introd AO 7 658 2226
Saint-Nicolas AO 7 311 2537
La Salle AO 8 2087 4624
Villeneuve AO 9 1289 5913
Morgex AO 10 2104 8017
Saint-Pierre AO 11 3165 11182
Aymavilles AO 11 2086 13268
Rhêmes-Notre-Dame AO 12 89 13357
Valsavarenche AO 13 161 13518
La Thuile AO 13 761 14279
Sarre AO 13 4927 19206
Pré-Saint-Didier AO 13 1050 20256
Jovençan AO 14 736 20992
Gressan AO 16 3387 24379
Courmayeur AO 17 2807 27186
Saint-Rhémy-en-Bosses AO 18 338 27524
Charvensod AO 18 2468 29992
Aosta AO 18 34390 64382
Saint-Oyen AO 19 203 64585
Gignod AO 19 1710 66295
Etroubles AO 19 501 66796

Municipalities with at least 50000 inhabitants

An earthquake occurred to
81 Km NW of Torino (890529 inhabitants)
88 Km NW of Moncalieri (57294 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 		ML 1.2 2013-01-23
01:53:08		 45.6758 7.1017 6 2015-01-20
11:18:19		 Bollettino Sismico Italiano INGV 3523751
Reviewed
Rev100 		ML 1.2 2013-01-23
01:53:08		 45.6747 7.098 5 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 2864111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-01-23 01:53:08 ± 0.1
Latitude 45.6758 ± 0.0045
Longitude 7.1017 ± 0.0090
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 3523751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 649
Semi-minor axis of confidence ellipse (meter) 474
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 66
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 169
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.09803
Epicentral distance of station farthest from the epicenter (degree) 0.84806
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 2864111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-01-23 02:00:29

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 3523751
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:24:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.TRAV.HHZ. 2013-01-23T01:53:26.05 0.3 undecidable manual S 110 53.3022 50 -0.34 66
GU.BHB.HHZ. 2013-01-23T01:53:25.21 0.1 undecidable manual P 172 94.1391 50 0.1 86
GU.CIRO.HHZ. 2013-01-23T01:53:21.32 0.3 undecidable manual S 103 37.1295 98 -0.17 70
GU.RSP.HHZ. 2013-01-23T01:53:19.77 0.1 undecidable manual P 168 59.8956 50 -0.07 92
GU.TRAV.HHZ. 2013-01-23T01:53:18.93 0.1 undecidable manual P 110 53.3022 50 0.11 92
GU.CIRO.HHZ. 2013-01-23T01:53:16.33 0.1 undecidable manual P 103 37.1295 98 0.34 91
GU.LSD.HHZ. 2013-01-23T01:53:16.76 0.3 undecidable manual S 174 24.1536 103 -0.31 70
GU.REMY.HHZ. 2013-01-23T01:53:15.05 0.3 undecidable manual S 13 18.4704 107 -0.11 74
GU.LSD.HHZ. 2013-01-23T01:53:13.64 0.1 undecidable manual P 174 24.1536 103 0.2 96
GU.REMY.HHZ. 2013-01-23T01:53:12.64 0.1 undecidable manual P 13 18.4704 107 0.3 94
IV.MRGE.HHZ. 2013-01-23T01:53:12.47 0.3 undecidable manual S 343 10.878 117 -0.24 73
IV.MRGE.HHZ. 2013-01-23T01:53:10.83 0.1 undecidable manual P 343 10.878 117 -0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.LSD.HHN. ML:1.2 0.000094 0.06 AML other m 2013-01-23T01:53:17.96
GU.LSD.HHE. ML:1.0 0.00006709999999999999 1.34 AML other m 2013-01-23T01:53:17.77
IV.MRGE.HHN. ML:1.5 0.0005005000000000001 0.74 AML other m 2013-01-23T01:53:13.01
IV.MRGE.HHE. ML:1.5 0.00047299999999999995 0.74 AML other m 2013-01-23T01:53:13.10
GU.TRAV.HHN. ML:1.1 0.00003225 1.58 AML other m 2013-01-23T01:53:27.75
GU.TRAV.HHE. ML:1.1 0.000030050000000000002 1.46 AML other m 2013-01-23T01:53:27.40
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