I decided to summarize information on the largest city fires in the territory of the former USSR.
Please supplement!
1194 - Novgorod ("the great fire", lasted 3 months), Staraya Russa
1212 - Novgorod (4300 out of 5000 courtyards burned down)
1331, 1343, 1354, 1356 - Moscow (almost completely)
1382 - Moscow (Khan Tokhtamysh burned down the city completely)
1413 - Kostroma (almost completely, after which the Kremlin was moved to a new location)
1488 - Moscow (about half of the city)
Promotional video:
1493 - Moscow (fire destroyed part of the Kremlin, Arbat, Neglinnaya, Sretenka, Petrov Sloboda)
1494 - Ryazan (the city was completely burnt out)
Wiki article)
1530 - Nizhny Novgorod (about a thousand different buildings burned down)
1536 - Yaroslavl
1547 - Moscow (third)
1562 - Pskov (the greatest fire of the city, 52 churches burned down)
1571 - Moscow (Khan Devlet-Girey burned the city almost completely)
1579 - Kazan (fire destroyed the entire northern and northeastern part of the city, including the Kremlin)
1599 - Astrakhan (the first big fire in the history of the city, almost everything burned out, except for the Kremlin)
1609 - Pskov (almost the whole city with the Kremlin)
1610 - Narva (almost the whole city)
1611 - Moscow (the Nizhny Novgorod militia burned down the entire city, except for the Kremlin), Arkhangelsk (the first big fire in the city)
1612 - Vologda (the Kremlin and other buildings burned down)
1622 - Kaluga (burned out almost completely)
1626 - Moscow (almost all of Moscow burned down, including the Kremlin)
1632 - Vologda (everything burned out, except for distant townships)
1637 - Arkhangelsk (destroyed the wooden fortress and the Arkhangelsk monastery, which was not restored after it)
1647 - Ryazan (a terrible fire devastated the Kremlin)
1654 - Kostroma (the Kremlin burned down)
1658 - Yaroslavl (most of the buildings burned down (1480 courtyards), the largest in the history of the city, "Great")
1667 - Arkhangelsk (the largest fire in the history of the city)
1673 - Voronezh (the fire swept away a significant part of the walls and most of the houses of residents)
1677 - Tobolsk (big fire, the Kremlin burned down)
1679 - Kasimov (fire destroyed the city, walls and towers, the cathedral and three parish churches), Kostroma (destroyed the Kostroma Kremlin, most of the new city and posadov)
1682 - Pskov (completely burned out the Middle city, Polonische city, partly the urban part of Zapskovye)
1695 - Tyumen (the strongest fire in Tyumen in the 17th century, 604 courtyards burned down).
1698 - Kholmogory (the city burned out so that it fell into decay)
1699 - Moscow (the entire Kitay-gorod and the White City from Neglinnaya to Yauza)
1700 - Vyatka (almost the entire old city), Samara (almost half of the city, as well as its fortress walls burned down)
1701 - Moscow, Tobolsk (676 yards in the upper and 206 in the lower posad burned down)
1703 - Yeniseisk, Samara (everything that survived after the fire of 1700 burned down)
1705 - Tyumen (729 courtyards burned down, 47 survived)
1709 - Novgorod
1715 - Nizhny Novgorod (almost the entire city)
1716 - Irkutsk (the first big fire of the city, the Kremlin burned down)
1719 - Suzdal (the Kremlin burned down, almost all the churches and houses of the inhabitants)
1726 - Arzamas (the Kremlin and almost the entire city burned down)
1737 - Moscow (a quarter of the city burned down, including the Kremlin: more than 12 thousand courtyards and two and a half thousand houses, over seventy churches and monasteries), St. Petersburg (more than 1000 houses)
1742 - Kaluga (600 courtyards burned down), Torzhok (the Kremlin burned down)
1743 - Solikamsk (almost the entire city, 700 houses burned down, only 20 survived)
1746 - Samara (most of the city burned out)
1747 - Smolensk (Zadneprovskaya side burned out)
1748 - Bolkhov ("great fire", burned down the Kremlin, a nunnery, 12 stone and wooden churches and about 1500 philistine courtyards (out of a total of about 1800), Voronezh ("great", almost all houses in the new part of the city burned down, more 1000. Only the Assumption Church, Zeikhgauz and a former shipyard (later a wool washing machine) remained from Peter's buildings. See Source)
1748 - Mozhaisk ("huge")
1754 - Kaluga (largest, half of the city burned down, about 1200 yards, 14 churches)
1759 - Ufa (the Kremlin and its surroundings burned down, 210 courtyards in total)
1763 - Staraya Russa (all wooden buildings burned down), Tver (852 out of 900 houses burned down, almost all government buildings)
1765 - Samara (2/3 of the city, “the magistrate, the voivodship house, 4 churches, merchant shops, 418 households were burnt down. Only 170 private households remained”)
1765 - Kargopol (three quarters of the city burned out, the fire went down in history as a "great")
1766 - Torzhok (city center burned out), Tyumen
1767 - Astrakhan (a significant part of the city burned out)
1768 - Yaroslavl (250 common houses, almost 600 shops burned down)
1773 - Vologda (7 churches, 300 houses, 5 factories, 19 factories in the part of the river burned down), Voronezh (a third of the city, 249 residential buildings and 258 trade shops), Kostroma (almost completely), Krasnoyarsk (320 out of 350 city houses), Narva (the entire new part of the city), Tver (almost the entire Zavolzhskaya part of the city), Cheboksary (2/3 of the city, 29 churches, 717 houses, not counting barns, shops and factories). See The Fires of 1773
1774 - Rzhev (the fire destroyed almost all the wooden buildings), Zaraysk (almost the entire city)
1778 - Astrakhan, Vladimir (Yamskaya Sloboda burned down, the most ancient monuments of the city died or suffered), Yeniseisk (almost completely)
1779 - Arkhangelsk (during the year the central part of the city embankment burned out twice), Kostroma (more than half of the city), Tarusa (almost all of it)
1784 - Rzhev (the fire destroyed almost all wooden buildings)
1788 - Kovrov (the city burned down almost completely), Tobolsk (the largest, over 1800 houses, more than half of the city, including the Kremlin)
1792 - Cherdyn (the city burned down almost completely)
1793 - Arkhangelsk (in the center, 1220 buildings were destroyed by fire out of a total of 1650 buildings)
1806 - Lipetsk (almost completely destroyed the wooden city)
1809 - Minsk (more than 200 houses)
1811 - Kiev (over 2 thousand houses in Podol, see the wiki article), Saratov (almost the entire city, 1380 houses, 360 shops and barns)
1812 - Moscow (3/4 of the city, destroyed 6 496 out of 9 151 residential buildings (including 6 584 wooden and 2 567 stone), 122 out of 329 temples, 8251 warehouse and retail premises), Smolensk (out of 2250 houses of "inhabitants" survived on outskirts only 350), Ufa (?) (half of the city)
1815 - Kazan (70 blocks, 166 streets with lanes, 1500 houses and 19 churches, the whole Kremlin burned out)
1816 - Ufa (248 courtyards)
1821 - Ufa (half of the city)
1823 - Arzamas (big fire in the lower part of the city)
1825 - Kasimov (third of the city)
1834 - Tula (two fires, over 1000 houses, the largest in the history of the city. More)
1835 - Minsk (fire destroyed almost the entire central part of the city, after which it was forbidden to build wooden houses in the center)
1837 - Ryazan (almost all the wooden buildings of the city)
1842 - Perm (city center burned down, 300 houses), Kazan (central part of the city - 1309 houses and 9 churches)
1847 - Vytegra (most of the city burned down), Kostroma (from September 5 to 11, 188 houses, the Epiphany Monastery, 3 factories, 4 public buildings were destroyed. More than half of the city was destroyed)
1848 - Oryol, Samara (the city burned down almost completely)
1850 - Samara (almost completely, 486 wooden and 35 stone residential buildings, all administrative buildings of the city burned down)
1855 - Saratov (almost half of the city)
1858 - Astrakhan, Oryol (half, about 800 buildings, see Wiki article)
1860 - Orenburg (1/4 of all city buildings)
1864 - Simbirsk (2/3 of the city, restoration went on until 1887)
1869 - Yeniseisk (destroyed 6/7 of the city, which led to its decline)
1874 - Kronstadt (119 houses) More
1875 - Bryansk (the best part of the city burned out), Morshansk (almost the entire city and three settlements). More details
1879 - Irkutsk (half of the city, 75 blocks, 105 stone and 3418 wooden buildings), Vyazma (200 houses), Orenburg (5 fires from April 16 to May 5, 1766 houses (53%) and 292 shops burned down)
1880 - severe fires in Ryazan, Rzhev, Torzhok
1881 - Krasnoyarsk (up to 40 stone and up to 400 wooden houses, more details), Minsk (almost half of the wooden houses of the city burned down)
1883 - Samara (half of the city burned out)
1887 - Kostroma (devastated the northern part of the city)
1888 - Orenburg (more than 2 thousand houses)
1890 - Kineshma (almost completely, more than 600 houses), Nevyansk (two thirds)
1901 - Vitebsk (1092 buildings burned down)
1906 - Syzran (5500 houses, most of the city)
1909 - Novonikolaevsk / Novosibirsk (22 quarters, 794 houses burned down)
1910 - Tsaritsyn / Volgograd (the entire "Caucasus" area burned down, 20 streets, 1300 houses. More)
1912 - Polotsk (16 blocks burned down, from 800 to 1000 houses)
1917 - Barnaul (60 blocks, more than a third of the city, see wiki article)
1921 - Kyshtym (third of the city)