The epicenter was located 231 km (143 miles) W of Bandon and 242 km (151 miles) W of Coos Bay, Oregon.
There is no tsunami threat from this earthquake.
The USGS issued a Green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.
Overall, the population in this region resides in structures that are resistant to earthquake shaking, though vulnerable structures exist. The predominant vulnerable building types are unreinforced brick masonry and reinforced masonry construction.
USGS seismologists forecast a 7% chance of one or more aftershocks that are larger than magnitude 5, which can be damaging, within the next week.
There will likely be smaller aftershocks within the next week, with up to 63 magnitude 3 or higher aftershocks. Magnitude 3 and higher aftershocks are large enough to be felt nearby. The number of aftershocks will decrease over time, but a large aftershock can temporarily increase the number of aftershocks.
At the time of the afterhock forecast, there was 1 magnitude 3 or higher aftershock and 0 magnitude 5 or higher aftershocks.
Estimated population exposure to earthquake shaking
Regional seismicity
