WSKG (https://wskg.org/npr_story_post/hawaiis-kilauea-volcano-eruption-creates-600-foot-deep-lava-lake/attachment/at-930-p-m-on-dec-20-an-eruption-began-in-the-walls-of-halema%CA%BBuma%CA%BBu-crater-vaporizing-the-lake-this-is-what-the-lake-looked-like-at-557-p-m-before-the-eruption/)