Home › Forums › Mystery Booms and Loud Rumblings › Maple Valley, Washington State, USA
A far away boom and earth shake for about 1 second occurred on June 28th, 2016 at approximately 3pm. It was heard in a radius of about 20 miles. Heard as far north as Hobart, WA; to Maple Valley, WA; to the sound in Ravensdale, WA.
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