What was the largest earthquake in Washington state?

What was the largest earthquake in Washington state?

The 1965 Puget Sound earthquake occurred at 08:28 AM PDT (15:28 UTC) on April 29 within the Puget Sound region of Washington state. It had a magnitude of 6.7 on the moment magnitude scale and a maximum perceived intensity of VIII (Severe) on the Mercalli intensity scale.

What was the largest earthquake in Seattle?

The 2001 Nisqually earthquake occurred at 10:54:32 local time on February 28, 2001 and lasted nearly a minute. The intraslab earthquake had a moment magnitude of 6.8 and a maximum Mercalli intensity of VIII (Severe)….2001 Nisqually earthquake.

Olympia Seattle
Tsunami No
Casualties 1 dead (heart attack), 400 injured

What was the size of the largest known earthquake in the Washington area and when did it occur?

On Feb. 28, 2001, a magnitude 6.8 earthquake shook western Washington causing billions of dollars in damage. SEATTLE — Sunday, Feb. 28 marks the 20th anniversary of the largest earthquake to shake the Pacific Northwest since the 1960s.

Did the 2001 Nisqually earthquake cause landslides?

The Nisqually Earthquake shook much of western Washington State on the morning of February 28, 2001, and caused widespread damage, much of which resulted from ground failure. Liquefaction effects are not reported here, as they are generally considered an earthquake effect and not a landslide process.

Where in Washington are earthquakes most likely to occur?

While most earthquakes occur in Western Washington, some damaging events, such as the 1872 magnitude 6.8 (est.) quake, do occur east of the Cascades.

How far away was this earthquake felt the Seattle earthquake February 28 2001?

In all, the 2001 Nisqually earthquake caused between $1-4 billion in damages. The earthquake’s epicenter was 32 miles below Anderson Island, which helped buffer some of its force, but it could still be felt as far away as Vancouver, Montana and Portland.

Does the state of Washington have earthquakes?

WASHINGTON – The Evergreen State has the second highest risk in the U.S. for large and damaging earthquakes because of where it is geographically. According to the Department of Natural Resources, earthquakes happen nearly everyday in Washington, but most are too small to be felt or cause damage.

How long did the Nisqually earthquake last?

45 seconds
The 6.8 magnitude earthquake lasted just 45 seconds, but it felt like an eternity to those who rushed to take cover. In less than a minute, the quake would cause hundreds of injuries and millions of dollars in damage.