It might get loud

Holy shit. 175 dB!!!

The most recent open-air hypersonic-weapon test was completed by the Army and the Navy in October 2017, using a 36,000-pound missile to launch a glider from a rocky beach on the western shores of Kauai, Hawaii, toward Kwajalein Atoll, 2,300 miles to the southwest. The 9 p.m. flight created a trailing sonic boom over the Pacific, which topped out at an estimated 175 decibels, well above the threshold of causing physical pain. The effort cost $160 million, or 6 percent of the total hypersonics budget proposed for 2020

Via The NYT.