BANGOR DAILY NEWS • February 3, 2023
A sudden plunge into below-freezing temperatures has prompted some unusual tremors in the central Maine highlands. According to the National Weather Service office in Caribou, some Piscataquis County residents have reported feeling “frostquakes” during the extreme cold on Friday evening. The tremors are the result of “cryoseisms”, according to the NWS. These are caused when sudden cracks form in frozen water or soil.