Hawaiian Volcano Observatory reports that a collapse/explosive event at Kīlauea summit (Halemaʻumaʻu Crater) occurred at 11:43 a.m. on Monday, July 16, 2018.
There was no tsunami generated from the seismic event that released energy equivalent to a 5.4 earthquake, according to the Pacific Tsunami Warning Center.
Earlier this morning, explosive activity near the ocean entry point at Pohoiki damaged a tour boat vessel and injured at least 22  individuals aboard.
According to the USGS, the quake was located:
4.2 miles SW of Volcano, Hawaiʻi;
23.9 miles SW of Hawaiian Paradise Park, Hawaiʻi;
25.9 miles SSW of Hilo, Hawaiʻi;
49.9 miles ESE of Kailua-Kona, Hawaiʻi; and
212.4 miles SE of Honolulu, Hawaiʻi.