I'll accept the correction regarding Saint-Laurent-des-Eaux, thank you. However the steam explosion(s) that blew apart the reactor assembly at Chernobyl did no

I'll accept the correction regarding Saint-Laurent-des-Eaux, thank you. However the steam explosion(s) that blew apart the reactor assembly at Chernobyl did not melt the fuel rods there although of course there may have been some localized areas of melting. The melt that created the tons of corium was due to decay heat. It occurred many hours after the power excursion and explosion(s).