This event was reviewed by an analyst and confirmed.
Type Earthquake
Magnitude 2.8 MLv
Local datetime 1991/05/31 04:50
Universal datetime 1991/05/31 02:50
Latitude 45.35 ° ± 2 km
Longitude 6.75 ° ± 4 km
Depth 5 km (operator assigned) ± 0.0 km

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See the seismogram of this event.

Near cities

This table shows only the most populated cities around the epicenter.
Name Distance (km) Population
Aosta  62 34062
Albertville  45 18899
Sallanches  67 16088
Briançon  51 11625
Passy  67 10902
Chamonix-Mont-Blanc  66 8611
La Ravoire  66 8457
Saint-Jean-de-Maurienne  33 7746
Faverges-Seythenex  55 7606
Pontcharra  58 7344
Bourg-Saint-Maurice  35 7302
Ugine  53 7039
Saint-Alban-Leysse  67 6007
Challes-les-Eaux  64 5590
Saint-Gervais-les-Bains  56 5573

Past seismicity

  This map shows only the 50 most significant earthquakes around this event.

Event details

Parameters

Evaluation status final
RMS 1.1
Azimuthal gap
Number of stations used 19
Number of phases used 10

Webservices

The data of this event are available in various formats (QuakeML, GeoJSON and text) through the following links :

QuakeML GeoJSON Text

Phases

Network Station Phase Time Residual (s) Azimuth (°) Distance (°) Mode
RD LPG Pg 02:50:52.50 -0.53 360 0.15 Manual
RD LPG Sg 02:50:55.60 0.05 360 0.15 Manual
RD LPL Pg 02:50:52.90 -0.46 355 0.17 Manual
RD LPL Sg 02:50:56.0 -0.13 355 0.17 Manual
FR RSL Pg 02:50:56.30 -0.23 345 0.35 Manual
FR SSB Pn 02:51:18.50 1.79 268 1.56 Manual
FR SSB Sg 02:51:39.80 -0.91 268 1.56 Manual
RD SBF Pn 02:51:18.0 1.23 162 1.57 Manual
RD SBF Pg 02:51:20.20 1.1 162 1.57 Manual
RD SBF Sg 02:51:38.90 -1.95 162 1.57 Manual