The USGS registered two relatively strong quakes off the coast of Oregon on Sunday. Both were located near the Blanco Fracture Zone.

The first quake was measured at a 4.9, followed later in the day by a 4.8. Neither quake was strong enough to cause any measurable tsunamis fortunately.

This is one area where we watch quakes closely due to the fact that these fracture zones have historically been connected to major earthquakes as large as a 9.0. Plus, there are many scientists that believe the Pacific Northwest is overdue for a major quake, possibly connected to these offshore areas where the plates meet.

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