Unexplained boom phenomena recur independently at scattered sites worldwide.

Evidence

Moodus is only one of several places around the world having a long history of repeated unexplained booms. In Norway, they are called Mistpouffers. A region around Lake Seneca and Lake Cayuga in New York state was made famous for them by James Fenimore Cooper. The Seneca Guns were the subject of his 1850 short story “The Lake Gun.” … The “Lake Gun” is a mystery. It is a sound resembling the explosion of a heavy piece of artillery, that can be accounted for by none of the known laws of nature. The report is deep, hollow, distant, and imposing. The lake seems to be speaking to the surrounding hills, which send back the echoes of its voice in accurate reply. — Eric J. Heller, Why You Hear What You Hear- An…, 688

Categorization

• XREF: Connects to the reader’s interest in soundscape and unexplained natural sounds; also a literary-cultural curiosity worth chasing. — connects to: Postwar boom industries concentrated in a few grand production regions — David Harvey, The Condition of Postmodernity: An…, 790
• SEED: A cross-cultural survey of named boom sites (Moodus, Mistpouffers, Seneca Guns, Barisal Guns) is a natural essay or article angle.