Earthquake with magnitude of Md 2.5 on date 01-02-2002 and time 03:10:14 (UTC) in region 2 km S Introd (AO)

A magnitude Md 2.5 earthquake occured in region: 2 km S Introd (AO), on

  • 01-02-2002 03:10:14 (UTC)
  • 01-02-2002 04:10:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.6740, 7.1870 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
Introd AO 2 658 658
Rhêmes-Saint-Georges AO 3 194 852
Arvier AO 4 873 1725
Villeneuve AO 4 1289 3014
Saint-Nicolas AO 5 311 3325
Saint-Pierre AO 5 3165 6490
Aymavilles AO 5 2086 8576
Avise AO 5 305 8881
Sarre AO 8 4927 13808
Jovençan AO 8 736 14544
Valsavarenche AO 9 161 14705
Gressan AO 10 3387 18092
Valgrisenche AO 11 196 18288
La Salle AO 12 2087 20375
Charvensod AO 12 2468 22843
Rhêmes-Notre-Dame AO 13 89 22932
Aosta AO 13 34390 57322
Gignod AO 15 1710 59032
Pollein AO 15 1569 60601
Morgex AO 15 2104 62705
Cogne AO 15 1417 64122
Roisan AO 16 1036 65158
Saint-Christophe AO 16 3432 68590
Etroubles AO 17 501 69091
Saint-Rhémy-en-Bosses AO 17 338 69429
Allein AO 17 229 69658
Saint-Oyen AO 17 203 69861
Brissogne AO 18 1008 70869
Pré-Saint-Didier AO 19 1050 71919
Doues AO 19 510 72429
La Thuile AO 19 761 73190
Quart AO 19 4039 77229

Municipalities with at least 50000 inhabitants

An earthquake occurred to
77 Km NW of Torino (890529 inhabitants)
84 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
Md 2.5 2002-02-01
03:10:14
45.674 7.187 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 435679
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2002-02-01 03:10:14 ± 0.597
Latitude 45.6740 ± 0.0406
Longitude 7.1870 ± 0.0475
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 435679

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 5833.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 212
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00494
Epicentral distance of station farthest from the epicenter (degree) 0.01052
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 435679
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:51:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.DOI.Z. 2002-02-01T03:10:54.75 10.0 undecidable manual SN 178 1.1655 0.48 0.7
--.VAI.Z. 2002-02-01T03:10:51.86 10.0 undecidable manual SN 80 1.11 -1.22 0.3
--.BNI.Z. 2002-02-01T03:10:39.75 10.0 undecidable manual SG 210 0.7104 -0.72 0.6
--.VAI.Z. 2002-02-01T03:10:37.77 10.0 undecidable manual PN 80 1.11 0.96 1.1
--.DOI.Z. 2002-02-01T03:10:36.23 10.0 undecidable manual PN 178 1.1655 -1.26 0.7
--.ORO.Z. 2002-02-01T03:10:35.59 10.0 undecidable manual SG 95 0.5439 0.25 0.9
--.BNI.Z. 2002-02-01T03:10:30.42 10.0 undecidable manual PG 210 0.7104 0.89 1.3
--.ORO.Z. 2002-02-01T03:10:27.12 10.0 undecidable manual PG 95 0.5439 0.55 1.8
--.MCGN.Z. 2002-02-01T03:10:27.17 10.0 undecidable manual PG 63 0.6216 -0.67 1.7
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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