Tsunami Warning Canceled for Oregon Coast After 7.9 Alaska Earthquake

What Happened?

A 7.9 magnitude earthquake struck off the coast of Alaska at 1:53 AM AKDT on July 29, 2023. The quake triggered a tsunami warning for the Oregon coast, but it was canceled about an hour later.

The quake was centered about 175 miles southeast of Sand Point, Alaska, and had a depth of about 10 miles.

Tsunami Warning

The National Tsunami Warning Center issued a tsunami warning for the Oregon coast at 2:15 AM AKDT. The warning was canceled at 3:14 AM AKDT after it was determined that there was no tsunami threat to the coast.

The tsunami warning was based on data from sensors that detected the earthquake and predicted that a tsunami could reach the Oregon coast within three hours.

Why Was the Tsunami Warning Canceled?

The tsunami warning was canceled after data from sensors in the Pacific Ocean showed that no tsunami was generated by the earthquake.

The National Tsunami Warning Center said that the earthquake did not generate a large enough seafloor displacement to create a tsunami.

What Should You Do?

If you are on the Oregon coast, you should follow the instructions of local officials. If you are told to evacuate, do so immediately.

If you are not on the Oregon coast, you should be aware of the potential for a tsunami and take precautions if necessary.

More Information

For more information on tsunamis, please visit the National Tsunami Warning Center website.