Below is a listing of resources online that may be helpful in the study of unexplained noises reported in various parts of the world:

The US Geological Survey’s page on “Earthquake Booms, Seneca Guns, and Other Sounds”: http://earthquake.usgs.gov/learn/topics/booms.php

David Hill’s comprehensive article on possible causes for “mystery booms”: http://www.seismosoc.org/publications/SRL/SRL_82/srl_82-5_op/hill_op.html

“Booms and Earthquakes: Saving the East Coast a Scare”. Chapter 17 from Jeremy Stone’s Every Man Should Try: Adventures of a Public Interest Activist: http://catalytic-diplomacy.org/everymanPDFs/Ch17.pdf 

FrostQuake.org, a website devoted to the study of cryoseisms and similar weather-related phenomena

Weather Underground, a comprehensive resource site with access to temperature data both past and present.

Mystery Booms: A blog devoted to mystery sounds around the world: http://mysterybooms.blogspot.com/

Mystery Booms on YouTube: This is the channel of Peter Reyland, an independent researcher with several videos documenting mystery boom reports over the years: Enigma Seeker on YouTube

Google Maps page identifying locations of possible “Mystery Booms”: https://www.google.com/maps/d/viewer?mid=zkyG3w_e9ris.kWAd9U3_Lo60

A Facebook Group devoted to reports, discussion, and resources online about mystery booms: https://www.facebook.com/pages/Mystery-Booms-Skyquakes/237258833075962