Você deve ser capaz de fazer algo assim:
SET @yyyy_mm=DATE_FORMAT(now(),'%Y-%m');
SET @c = CONCAT('CREATE TABLE `survey`.`',@yyyy_mm, '` LIKE `survey`.`interim`');
PREPARE stmt from @c;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
SET @yyyy_mm=DATE_FORMAT(now(),'%Y-%m');
SET @c = CONCAT('CREATE TABLE `survey`.`',@yyyy_mm, '` LIKE `survey`.`interim`');
PREPARE stmt from @c;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
