Sub-kiloton blasts in Donetsk

Location
Military Maps gives a location to the explosions southwest of the Donetsk airport.
 * МОЩНЫЙ ВЗРЫВ! (Powerful explosion) – 2014-09-20 12:06:30
 * ''Blow on the 1st floor, state factory in Kuibyshev district burns and explodes. The third explosion was very powerful, similar to a hit by Tochka-U.

Wikimapia labels the place as Ministry of Defense Chemical Factory. To the northeast is Military unit 3023 that was hit by a Tochka-U ballistic missile on October 8th.

October 20

 * Blast rocks chemical plant in Donetsk, claims of tactical missile – RT, October 20, 2014
 * 20/10/14 Press conference in Donetsk came under artillery attack – Polit Navigator, Oct 20, 2014
 * Olga Luzanova on Twitter
 * "Tochka-U" missile hit #Donetsk, the detonation wave reached 50 km area around. 20/10/14 #Novorossiya http://youtu.be/qT4RhTig_oM

February, 8
A very powerful explosion (videos available) was reported in Donetsk on 8 February. Later it was said  that a chemical plant  in Donetsk  was hit by Tochka U  missile (fragments shown by Basurin). Preliminary information is that nobody was killed in that explosion. Investigators were on the scene next morning, but the area was further shelled by Ukraine; thus fragments were found and shown next morning. The plant traditionally produced explosives for mining and defense, and utilized old munitions, according to old Ukrainian sources. DPR sources say that the plant is currently producing paints and dry mixes.

Tochka U/Warheads

 * 9Н123Ф — ("fougasse-shrapnel"- fragmentation) Weight 482 kg warhead, explosive mass TG-20 - 162.5 kg, the number of fragments - 14.5 thousand. Impact area - 2-3 hectares. Used in 9М79Ф (9М79-1Ф) missile.
 * 9Н123К — cassette warhead, used in missiles  9M79K (9M79-1K). Contains 50 fragmentation submunitions 9N24 (weighing 7.45 kg, the mass of the explosive type A-IX-20 - 1.45 kg, 316 fragments). Weight 482 kg warhead, the number of fragments - 15.8 thousand.   Area of destruction - 3.5-7 hectar wikipedia (Russian)

Video

 * YouTube playlist