I am experiencing "booms" at my house. Several last night, one just a few minutes ago. Are any of you guys hearing or feeling these? Are they "frost quakes"? At first I thought heavy snow/ice combinations falling off the roof. But nothing new has fallen. Have heard of them in Ontario and New England States around Christmas. Anyone else last night or tonight?
A cryoseism, also known as a frost quake,[1][2] may be caused by a sudden cracking action in frozen soil or rock saturated with water or ice.[3] As water seeps down into the rock, it freezes and expands, putting stress on surrounding rock. This builds up until it is relieved explosively in a cryoseism.[4] Another form of cryoseism, known as an ice quake, is a non-tectonic seismic event caused by sudden glacial movements, sometimes due to the formation of a thin veneer of liquid water under a glacier from surface melting. Usually, a glacier would stick to the rough bedrock, but the hydraulic pressure acts as a lubricant, allowing it to slide up to many metres at once.[5][6] This type of cryoseism can last for tens of minutes.[7] As the requirements for cryoseisms to occur are not yet defined, their prediction is still not possible and constitute a significant factor in structural design and engineering.[3] Links have been made between global warming and the frequency of cryoseisms. http://www.cbc.ca/newsblogs/yourcommunity/2013/12/rare-frost-quake-phenomena.html http://www.cp24.com/news/frost-quakes-likely-to-blame-for-boom-like-noises-1.1611432
Haven't heard those but when very cold temps hit (single digits) we get nail pops in the house. They sound halfway between a thunk and a pop noise heard throughout the structure. Or maybe they're framing members splitting ( hope not).
we have a pond/lake across the street and any time the ice is thick enough to go out on the ice is cracking and booming quite a bit. sometimes water will squirt out of a fresh making crack - a little unnerving when it happens that close
Yup we had a few the other night that shook the walls a little but it was ice falling from the upper roof onto the lower roof.