Your article implied the first explosion occurred because there was no water. It implies the reactor was running normally until it ran out of water. That’s wrong. The reactor was not running normally. Technicians manually removed control rods far below the bare minimum required for safe operation. The control rods jammed when they tried to put them back. Only their graphite tips were in the reactor. The explosion was a steam explosion that occurred from a sudden release of immense energy, which caused the water to explode. Things didn’t catch on fire and melt until the first steam explosion caused damage to allow it do so.