That's correct.

After the establishment of the Pale, all pogroms occurred in this region. In fact one pogrom ~1908 was notable for being the first one outside the Pale. Few pogroms occurred in what is now Russia or in Belarus. They were mostly in Ukraine, with quite a few in Moldovia and Poland too. Even after that extra-Pale pogrom, there were few outside of that region. There was on in Belarus and I think several in Western Russia.

The vast majority of pogroms in the Russian Empire occurred in what is now Ukraine and Poland, especially in the West, but there were also quite a few in the South around Kherson and Odessa perpetrated by Russians called Cossacks who lived down there.

The pogroms during the Russian Civil War were almost all perpetrated by the Right: the Ukrainian People's Army, the White Army, and the Green Army (anti-Communist peasants party that took up arms due to collectivization of agriculture). The Red Army committed few pogroms, possibly 5%. The Jews saw the Red Army as their protectors. When the Red Army came to town, the Jews of the town would all decamp and wait for them in the Central Square, where they had a big celebration.