What's The Largest Quake Ever In Washington?

Tools

By By Steve Pool

SEATTLE - Most of us remember the 6.8 Nisqually Quake of 2001, which was the largest in a while, but historically, there have been even larger quakes -- including a 7.1 quake centered near the same spot near Olympia on April 13, 1949.

But the largest quake ever recorded in our area occurred Jan. 26, 1700 off the Washington Coast. No one has an exact magnitude, but it's estimated at over 9.0. It dropped the coastal floor 3-6 feet and caused a huge tsunami to strike Japan.

Closer to Seattle, seismologists have found evidence of a quake measuring around 7.4 about 1,100 years ago on a fault that runs through Seattle. While quakes of those size are incredibly rare, it's a good reminder to always be prepared.

For More Information:

UW Seismology Lab -- www.geophys.washington.edu

Washington History Link Info On 1/26/1700 Quake -- www.washington.historylink.org

Large Washington Quakes -- www.geocities.com/seiswash

Your Photos

YouNews Up! Up! And away! Up! Up! And away!
When I saw this dramatic cloud to the north, it reminded me of smoke, rising in billows until it hits the jet stream, then it's pulled hundreds of miles east. I had to capture it quickly. Within minutes the effect had faded.
YouNews Inside an osprey nest Inside an osprey nest
For my girlfriends birthday we had a party at her parents. We knew the nest was there but the owner hadn't seen or heard the osprey for a day or two. He asked me to fly my drone up and see if any was wrong. I flew up and found that there were two eggs inside.
YouNews Our Garden Our Garden
The growing season has been great.

The secret to this garden is simple.
I used recycled grass clippings.