Collocations for eerie - adj.

be, feel, look, sound

extremely, fairly, very, etc.
distinctly (esp. BrE), downright
This place has a distinctly eerie atmosphere.

almost
a silence so long that it was almost eerie

a little, slightly, etc.

Eerie is used with these nouns:
calm, echo, feeling, glow, howl, hush, premonition, quiet, resemblance, sensation, shadow, silence, similarity, stillness