A Sonic Boom is a loud, explosive sound caused by the shockwave created when an object travels through the air faster than the speed of sound. The speed of sound, also known as Mach 1, varies depending on factors such as temperature and altitude, but it is generally around 343 meters per second (1,125 feet per second) at sea level.
When an object, such as an aircraft, exceeds the speed of sound, it creates a rapid compression of air molecules in front of it. As the object continues to move, this compression turns into a shockwave, which is a sudden and intense pressure wave. When the shockwave reaches the ground, or when it reaches an observer, it is heard as a sonic boom—a loud and distinctive noise that resembles a loud clap or thunder.
5月23日，#杭州巨响#的话题登上热搜，啥情况？
据浙江日报潮新闻报道，5月23日中午，多位网友爆料杭州传出巨响。
“声音很大，感觉房子都在震。”一位正在杭州滨江白马湖一带上班的网友说。
多个网络社交平台上，很多网友在讨论。巨响大概是下午1点27分左右发生的。萧山、拱墅、下沙、滨江、钱江新城等地的网友们都听到了。
目前，潮新闻从消防部门了解到，下午1点至1点40分期间，并未接到任何紧急情况的报警信息。
随后，浙江省地震局发布消息称，据网友反映，今天中午杭州地区又出现巨响，并伴随着振动。根据我局数字地震台网中心监测结果，5月22日至目前杭州市及附近地区未记录到地震活动。