Earthquake with magnitude of Md 2.4 on date 29-10-1988 and time 06:31:27 (Italy) in region 8 km SW Valgrisenche (AO)

A magnitude Md 2.4 earthquake occured in region: 8 km SW Valgrisenche (AO), on

  • 29-10-1988 05:31:27 (UTC)
  • 29-10-1988 06:31:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.5780, 7.0010 at 10 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
Valgrisenche AO 8 196 196
Rhêmes-Notre-Dame AO 9 89 285
Rhêmes-Saint-Georges AO 15 194 479
La Thuile AO 16 761 1240
Valsavarenche AO 16 161 1401
Avise AO 18 305 1706
Introd AO 19 658 2364
Arvier AO 19 873 3237
La Salle AO 20 2087 5324

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 2.4
M 2.5
1988-10-29
05:31:27
45.578 7.001 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 80029
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-10-29 05:31:27 ± 0.811
Latitude 45.5780 ± 0.0391
Longitude 7.0010 ± 0.0480
Depth (km) 10 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 80029

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) 5734.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 232
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00146
Epicentral distance of station farthest from the epicenter (degree) 0.01271
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 80029
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:15:17

M:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 80029
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:48:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.VAI.Z. 1988-10-29T05:32:08.63 10.0 undecidable manual SN 76 1.2654 0.42 0.5
--.DOI.Z. 1988-10-29T05:32:03.80 10.0 undecidable manual SN 170 1.0767 -0.83 0.2
--.ROB.Z. 1988-10-29T05:31:54.10 10.0 undecidable manual PN 153 1.4097 0.95 0.4
--.STV.Z. 1988-10-29T05:31:52.72 10.0 undecidable manual PN 170 1.3431 0.63 0.8
--.VAI.Z. 1988-10-29T05:31:51.41 10.0 undecidable manual PN 76 1.2654 0.39 1.2
--.ORO.Z. 1988-10-29T05:31:50.80 10.0 undecidable manual SG 85 0.6882 -0.75 0.2
--.DOI.Z. 1988-10-29T05:31:48.54 10.0 undecidable manual PN 170 1.0767 0 1.6
--.BNI.Z. 1988-10-29T05:31:46.29 10.0 undecidable manual SG 203 0.5661 -1.55 0
--.RRL.Z. 1988-10-29T05:31:41.10 10.0 undecidable manual PG 193 0.6771 -0.16 1.8
--.ORO.Z. 1988-10-29T05:31:40.94 10.0 undecidable manual PG 85 0.6882 -0.46 1.2
--.ORX.Z. 1988-10-29T05:31:40.86 10.0 undecidable manual PG 85 0.6882 -0.55 1
--.BNI.Z. 1988-10-29T05:31:39.00 10.0 undecidable manual PG 203 0.5661 -0.27 1.7
--.RSP.Z. 1988-10-29T05:31:37.55 10.0 undecidable manual PG 157 0.4551 0.31 1.6
--.LSD.Z. 1988-10-29T05:31:31.66 10.0 undecidable manual PG 137 0.1665 0 1.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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