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The purpose of this data set is to show the extent and severity of shaking caused by a modeled earthquake. |
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The purpose of this data set is to show the extent and severity of shaking caused by a modeled earthquake. |
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5000 |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN><SPAN>When this layer is turned on, click on any area of the map to view the total population, occupied housing units, number of businesses, and number of employees exposed to each shaking intensity. These estimates are provided for the county clicked.</SPAN></SPAN></P><P><SPAN><SPAN>The Modified Mercalli Intensity (MMI) scale is a seismic scale used for measuring the intensity of an earthquake. It measures the effects of an earthquake on the earth’s surface, humans, objects in nature, and the building environment. The scale ranges from 1 (not felt) to 12 (total destruction), often expressed as Roman numerals I through XII. </SPAN></SPAN></P><P><SPAN> Following is a detailed description of MMI shaking intensity levels: </SPAN></P><P><SPAN> MMI 4: Vibration felt like passing of heavy trucks. Stopped cars rock. Hanging objects swing. Windows, dishes, doors rattle. glasses clink. In the upper range of IV, wooden walls and frames creak. </SPAN></P><P><SPAN> MMI 5: Pictures move. Felt outdoors. Sleepers wakened. Liquids disturbed, some spilled. Small unstable objects displaced or upset. Doors swing. Pictures move. Pendulum clocks stop. </SPAN></P><P><SPAN> MMI 6: Objects fall. Felt by all. People walk unsteadily. Many frightened. Windows crack. Dishes, glassware, knickknacks, and books fall off shelves. Pictures off walls. Furniture moved or overturned. Weak plaster, adobe buildings, and some poorly built masonry buildings cracked. Trees and bushes shake visibly. </SPAN></P><P><SPAN> MMI 7: Nonstructural damage. Difficult to stand or walk. Noticed by drivers of cars. Furniture broken. Damage to poorly built masonry buildings. Weak chimneys broken at roof line. Fall of plaster, loose bricks, stones, tiles, cornices, unbraced parapets and porches. Some cracks in better masonry buildings. Waves on ponds. </SPAN></P><P><SPAN> MMI 8: Moderate damage. Steering of cars affected. Extensive damage to unreinforced masonry buildings, including partial collapse. Fall of some masonry walls. Twisting, falling of chimneys and monuments. Wood-frame houses moved on foundations if not bolted; loose partition walls thrown out. Tree branches broken. </SPAN></P><P><SPAN> (MMI descriptions taken from quake.abag.ca.gov/shaking/mmi/plaintext/.) </SPAN></P></DIV></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><P STYLE="font-size:16ptmargin:7 0 7 0;"><SPAN><SPAN>The Washington Division of Geology and Earth Resources (DGER) shall not be held liable for improper or incorrect use of the data described and/or contained herein. This product is provided 'as is' without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular use. The Washington State Department of Natural Resources and the authors of this product will not be liable to the user of this product for any activity involving the product with respect to the following: (a) lost profits, lost savings, or any other consequential damages; (b) the fitness of the product for a particular purpose; or (c) use of the product or results obtained from use of the product. Although these data have been processed successfully on computers of DGER, no warranty, expressed or implied, is made by DGER regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty.</SPAN></SPAN></P><DIV><P><SPAN /></P></DIV></DIV> |
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| title:
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Shaking Intensity |
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["HAZUS","structural","damage","no damage","slight damage","moderate damage","extensive damage","complete damage","shaking intensity","light","moderate","strong","very strong","severe","shaking","MMI Value","Modified Mercalli Intensity","MMI","seismic","earthquake","Washington","Washington State","geology","geologic","seismicity","seismology","population","housing units","businesses","employees","hazard","geologic hazards","Shaking Intensity (MMI Value)","natural hazards"] |
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en-US |
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150000000 |
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