Don't know about seismic, but it appears to have shown up on infrasonic:
[from spaceweather.com]
*PERUVIAN METEORITE UPDATE: *On Sept. 15th, a fireball streaked across
the skies of Peru and soon thereafter a watery crater
<http://www.spaceweather.com/swpod2007/08oct07/crater.jpg> was
discovered by local residents near the town of Carancas. At first
experts dismissed the connection; the crater didn't look like a
meteorite impact. But since then minds have changed:
"Without reservation this is definitely a meteorite," says
astronomy professor Peter Brown of the University of Western Ontario.
"We found some infrasound <http://aquarid.physics.uwo.ca/infrasound.htm>
data recorded by a station in La Paz about 70 km away. From the size of
the the airwave we can work out the kinetic energy of the
impactor--about 0.03 kton TNT."
"Something like 20 to 30 kg of the meteorite have already been
recovered, but odds are good a multi-ton monster lurks at the bottom of
the crater," he continues. "The bad news: It is below the water table,
the rainy season is coming and unless some action is taken ASAP, the
rock will quickly oxidize and crumble." [more
<http://www.spaceweather.com/swpod2007/08oct07/07_09_21_Carancas_meteorite.pdf>]
Meanwhile, he says, "we are digging for seismic data of the actual
impact--the first actual seismic recording of a terrestrial meteorite
impact!" Stay tuned.
Michael Farmer wrote:
The sounds were loud enough to break windows in
Desaguadero and Carancas, and the impact shook the
ground like an earthquake. Surely this impact would
show up on seismic.
One note though, there are large mines on the Bolivian
side of the border, perhaps they blat a lot so seismic
may not be noticed as much if that is the case.
Michael Farmer
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