[meteorite-list] Seismic Event w/ Bolide?

[Matson, Rob D.]

Hi Greg – Chris Peterson summed it up nicely. I would venture to guess that bolides that
lead to meteorites on the ground more often than not generate detectable seismic
(i.e. acoustic) signatures. Of the U.S. recovered falls since 2010, at the times those
events occurred I found seismic evidence for Lorton (2 stations), Mifflin, Battle
Mountain, Creston (4 stations), Osceola, and Dishchii’bikoh (4 stations). (I’m sure
the Novato, CA, fall also led to seismic returns on many stations, but I never
analyzed seismic on that event – probably should do so for completelness.) The
Wolcott, CT, event on April 19, 2013, also produced a sonic boom signature but
no meteorites were ever recovered. There have probably been close to a dozen
other bolides in recent years that I found on seismic, but meteorites weren’t
recovered.  --Rob

From: Meteorite-list [mailto:meteorite-list-bounces at meteoritecentral.com] On Behalf Of Greg Redfern via Meteorite-list
Sent: Wednesday, January 17, 2018 6:22 AM
To: Meteorite Mailing List
Subject: EXTERNAL: [meteorite-list] Seismic Event w/ Bolide?

List,

Has there been other bolide events that have had a seismic correlation? It is being reported that USGS recorded a 2.0 magnitude seismic event with this morning's Michigan et al bolide event.

I would think that would have to equate to enough kinetic energy upon impact of the main body to create a crater of some size.

Thoughts from experts like Mr. Matson ;-)

Thanks.

Sky Guy Greg

Greg Redfern
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