Is there a sentence fragment?Lava from the Hawaiian volcano Kilauea usually flows southward into the ocean. In June of 2014, though, northward.

Yes, there is a sentence fragment in the text. The fragment is "In June of 2014, though, northward." This is a fragment because it is an incomplete thought and it's missing an essential element, such as a subject or a verb. A complete sentence might be: "In June of 2014, though, it flowed northward. Knowee AI is a powerful AI-powered study tool designed to help you to solve study problem.