Hundreds of people felt mild earthquakes of similar intensity on Hawaii's Big Island and the Olympic Peninsula northwest of Seattle, but there was no damage.
The earthquakes that struck Hawaii on Saturday afternoon and Washington state on Sunday morning were more than 2,600 miles (4,200 kilometers) apart and were apparently unrelated.
A magnitude 4.1 earthquake struck about 4:30 p.m. Saturday, nine miles (14 kilometers) southwest of the volcano on the southeast coast of Hawaii Island.
According to the National Weather Service US Tsunami Warning System, the earthquake was too small to generate a tsunami.
However, dozens reported feeling it through the US Geological Survey. The earthquake was in the Kilauea region, a volcano that had erupted several weeks earlier. To calm down in September.
Shortly after 7 a.m. Sunday, dozens of people in the Puget Sound region felt a magnitude 4.0 earthquake centered on the northeastern Olympic Peninsula, 25 miles (40 kilometers) northwest of Seattle.
According to the Geological Survey, a 4.0 magnitude earthquake is powerful enough to wake people and shake cars and utensils, but will not cause any damage.
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