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| | The Mississippi Valley-"Whole Lotta Shakin' Goin' On" |
 | | For example, the San Francisco, California, earthquake of 1906 (magnitude 7.8) was felt 350 miles away in the middle of Nevada, whereas the New Madrid earthquake of December 1811 (magnitude 8.0) rang church bells in Boston, Massachusetts, 1,000 miles away. |
 | | This is shown by two areas affected by earthquakes of similar magnitude-the 1895 Charleston, Missouri, earthquake in the New Madrid seismic zone and the 1994 Northridge, California, earthquake. |
 | | Strong earthquakes in the New Madrid seismic zone are certain to occur in the future. |
| quake.wr.usgs.gov /prepare/factsheets/NewMadrid (1128 words) |
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