The natural disaster occurred near Three Lakes, Washington at 2:51 a.m. local time. It came days after a swarm of more than two dozen small earthquakes shook under Mount Hood.
There are reports of items falling off walls and shelves but no reports of damage.
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A 4.6 magnitude quake rumbled from near Monroe early Friday morning, shaking buildings to the southwest around Seattle while most of Capitol Hill slept through the ride.
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L'étape a été marquée par un 4e abandon celui du Français Christophe Laporte (Cofidis), distancé très vite. De Gendt et De Marchi se lancent dans la descente vers la Côte de la Jaillère avec deux minutes d'avance.
The state Department of Transportation sent crews out to inspect bridges but no damage was found by Friday afternoon.
The Northwest is especially prone to earthquakes. It was the largest in Southern California since the 1994 magnitude 6.6 Northridge quake. That quake caused some injuries and widespread damage, including to the air traffic control tower at Sea-Tac Airport.
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The natural disaster initially registered as a 4.7 magnitude and was then downgraded to 4.4 before eventually going back up to a 4.6. Thrust faults are common in the Cascade Range, Caruso said.