Chechnya is closer to Sochi than Volgograd

I was watching the NBC Nightly news and even though both bombings took place in Volgograd if you look at a map you will see just how close Chechnya, North Ossetia and Dagestan are to Sochi so it is very likely there will be more incidents because of this proximity. Volgograd is 400 miles away from Sochi.