Final answer:
The phrase in question is indeed a sentence fragment as it lacks a subject and a verb. Discussions of Hawaii's Kilauea volcano's activity, documented lava flows, and its effects highlight the linguistic context where such a fragment might be mistakenly used.
Step-by-step explanation:
The student asked if there's a sentence fragment in the text provided. Upon review, it's evident that the phrase 'in June of 2014, though, northward' constitutes a sentence fragment as it lacks both a subject and a complete verb, making it an incomplete thought.
The island of Hawaii and its volcanic activity, particularly at Kilauea volcano, often becomes a topic of discussion due to its status as one of the most active volcanoes in the world. Its eruptions and lava flows have been well-documented, such as the flow that occurred from fissure 7 in May 2018.
When discussing the destruction caused by volcano eruptions, the historical lava flows from Kilauea, including the 1960 Kapoho eruption and the dramatic landscape changes caused by the volcanic activity, become relevant anecdotes to the broader topic of geothermal energy and Earth sciences.