Beyond the Woods (2018 - Ireland)
 

"A gathering of friends is thrown into chaos by the opening of a mysterious fiery sinkhole near their secluded holiday home."

http://www.beyondthewoodshorror.com/

https://www.youtube.com/watch?v=rTjzOeIb338

(I am the director of this film - hope it's not against the rules to add my own film)