Clicking the about icon in the top right corner loads this page. This page contains a collection of these resources and a brief description of each item. Hazard maps are developed to illuminate areas that are affected or vulnerable to a particular hazard. The Washington State Department of Natural Resources is the lead agency for collecting and disseminating information about earthquakes and tsunami hazards. Washington State Earthquake History Major earthquakes in Washington since 1880 (source: USGS) On December 14, 1872, a strong earthquake in the Cascade Mountains caused damage at Victoria, British Columbia, and Seattle. All of the following resources can also be found on our Publications and Maps page, through the Washington, United States has had: (M1.5 or greater) 0 earthquakes in the past 24 hours 7 earthquakes in the past 7 days; 40 earthquakes in the past 30 days Before an earthquake Check for hazards in the home and office

The Washington Geological Survey develops, produces, and publishes a large variety of maps and reports on the hazards faced by our state. Clicking the list icon in the top right corner will load the earthquake list. Never use a lighter or match near damaged areas. To be effective, preparing for these disasters requires a full range of efforts and a comprehensive strategy.

Visit their website to learn about your risk and programs that help prepare for catastrophic hazards. However, damaging earthquakes have occurred in this region during the past 130 years. Small fires are the most common hazard after an earthquake. Tsunamis are a common result of large earthquakes in Washington. Liquefaction, a process in which loose, granular soils below the ground water table temporarily lose strength during strong earthquake shaking, has been the cause of considerable damage during earthquakes. Coastal Washington is not only vulnerable to chronic hazards such as erosion and flooding but is also subject to potential catastrophic hazards, such as a Cascadia Subduction Zone earthquake and tsunami that will occur in tandem. In response to the Nisqually earthquake of 2001, the Survey was awarded a grant by FEMA and the Washington Emergency Management Division to develop two types of earthquake hazard maps for every county in the state—liquefaction susceptibility maps, which outline areas where water-saturated sandy soil loses strength during earthquake shaking, and NEHRP (National Earthquake Hazards Reduction … To provide a micro- zonation of this hazard, maps have been prepared for various subregions of the United States. Clicking the options icon in the top right corner lets you change which earthquakes are displayed, and many other map and list options. Earthquake Hazards Overview Earthquake hazards include any physical phenomenon associated with an earthquake that may produce adverse effects on human activities. The Geology Division of the Washington State Department of Natural Resources (DNR) conducts geologic hazards mapping across the state and works to identify our earthquake threats. While they are often used as synonyms, it is useful to distinguish between "hazards" and "risk". WASHINGTON STATE EARTHQUAKE HAZARD MAPS (In alphabetical order by name) Washington Division of Geology and Earth Resources 9/19/11 Evacuate to higher ground if you are near a large body of water.