M4.2 - 1km WSW of Chelyabinsk, Russia (BETA) 2013-02-15 03:20:26 UTC

Summary

Location contributed by: Special NEIS solution
Magnitude contributed by: USGS, NEIC, Golden, Colorado (and predecessors)

General


Additional Commentary

mbLg 4.2 (GS). Chelyabinsk, Russia meteor explosion (bolide) which occurred at approximately 03:20:26 UTC or 9:20:26 am local time. At least 1,000 people were injured and over 4,000 buildings damaged when windows were blown out by the shock waves. Location and times of the explosion are approximate, and the station arrival times are for the ground-coupled surface wave. The magnitude represents only the energy in those surface waves, and therefore greatly underestimates the actual energy released by the atmospheric event. It is estimated that the meteor was 15-17 meters in diameter and weighed between 7,000 and 10,000 tons. The energy released in the explosion is estimated to be equivalent to 300-500 kilotons of TNT. This is believed to be the largest meteor event since the Tunguska, Siberia blast in 1908. For more information on the meteor vist the NASA webpage: http://www.jpl.nasa.gov/news/

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Scientific

Location contributed by: Special NEIS solution
Magnitude contributed by: USGS, NEIC, Golden, Colorado (and predecessors)

Summary

Preferred Location Parameters

Parameter Value Uncertainty
Magnitude 4.2 mb_Lg Not Specified
Location 55.150°N, 61.410°E ± 9999.9 km
Depth 0.0 km ± 9998.4 km
Number of Stations Used 0
Number of Phases Used 0
Minimum Distance 0.0 km (0.00°)
Travel Time Residual 0.00 sec
Azimuthal Gap
Review Status MANUAL
Event ID usc000f7rz
See the “Contributed Solutions” for a list of all contributed location parameters.

Contributed Solutions

P-Wave Travel Times

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