precision of lighting location

[Tobi]

1. Some android maps use blitzortung data to show lighting position even on very big map zoom. I saw which building was hit by lighting.
How precise is lighting locating in reality?

That depends on a lot of factors and we don't have an "official" value here. We often say something around 1km.

2. At www blitzortung.org we can see growing circles at place of strike. Does the speed of circle growing reflect speed of strike sound spread?
If not, it would be great to implement it. And additionally circle would dissappear at the size where sound fades away. Of course approximately.

See thread here or just visit http://www.lightningmaps.org