There are countless social media reports of an extremely loud noise heard in the Montreal area overnight.\nThe general consensus across the reports is that a boom occurred around 3:30 a.m. on Thursday morning. Some have reported also seeing a flash.\nEditor's Choice: The SPVM Says A Viral Photo Appearing To Show An Officer Raising The Finger Was Edited\n\nWhat are Montrealers’ theories?\nThere are multiple theories for the origin of the bang. \nSome say it was extremely loud thunder, but others reject those claims. \nhttps://www.reddit.com/r/montreal/comments/mcugd0/no_one_here_is_going_to_talk_about_that_loud/ from https://www.reddit.com/r/montreal\nA few are hypothesizing that a meteor exploded in the atmosphere, but they seem to be in the minority.\nOther social media users have likened the noise to crashing metal and say their first thought was that a disaster had occurred.\nhttps://www.reddit.com/r/Quebec/comments/mcstsk/3h26_am_gros_bruit_dans_louest_de_montr%C3%A9al/ from https://www.reddit.com/r/Quebec\nDue to some accompanying rumbling, another group of people on social media has posited there was an earthquake.\n\nWhat actually happened?\nFirst of all, there have been no reports of human disasters like train derailments or plane crashes.\nWe might also be able to toss out the theories that an earthquake struck.\nEarthquakes Canada has not reported significant seismic activity in Quebec.\nEnvironment Canada did track thunderstorms over the southern part of the province overnight. \nIn a Thursday morning tweet, the federal weather agency even suggested that the thunder could have woken residents up.\nDid you wake up to the sound of thunder last night? It wasn't a dream - there actually were thunderstorms. #QCStorm pic.twitter.com/THkoGpAG3I— ECCC Weather Quebec (@ECCCWeatherQC) March 25, 2021\n\nFor now, we might just have to write off the noise as yet another Montreal mystery.