Spanish to English Art/Literary Anthropology General

I have been using "death notice," "announcement of death," "necrological notice" and "necrology" to translate "esquela" and "necrológica" (I am aware that necrological is apparently not a word in English...) In some texts that I have seen, the terms obituary and death notice are used arbitrarily, and necrology, despite its close definition to "esquela," is rarely used. But obituaries are long(er) narratives dedicated to a decased personality, and "death notices" are the brief, customary announcements posted by bereaved relatives, friends, and co-workers... so which is it?