“Bite-Size Bits of Local, National, and Global History”
“Bite-Size Bits of Local, National, and Global History”
Near Fallon in Churchill County, Nevada — The American Mountains (Southwest)

Measuring Earthquakes

Measuring Earthquakes Marker image. Click for full size.
By Duane Hall, May 24, 2009
1. Measuring Earthquakes Marker
Inscription. Scientists measure the force of an earthquake in several ways. The Richter Scale and the Modified Mercalli Scale are the two methods most often used to gauge an earthquake's strength and magnitude.

The Richter Scale provides an estimate of an earthquake's magnitude through the use of a very precise instrument called a seismograph. It measures and records the seismic waves, or vibrations, created by the sudden release of energy caused when segments of the Earth's crust move. The scale ranges from 1 to 10, but it is logarithmic. This means for example, that a recording of 7 would show that movement of the earth was 10 times greater than a recording of 6. Earthquakes with a Richter value of 6 or more are considered major in magnitude. The 1954 earthquake that exposed the fault in front of you measured 7.3 on the Richter Scale. By comparison, the famous San Francisco earthquake of 1906 had a value of 8.3 on the scale.

The Modified Mercalli Scale expresses how intense an earthquake's effects are in a given location. The scale's values range from "I - Not felt except by a very few, favorably situated", to "XII - Damage total, lines of sight and level disturbed, objects thrown into the air". A value on this scale is assigned only after eyewitness reports and results of field investigations are
BLM Entry Sign to Earthquake Fault Road on US 50 image. Click for full size.
By Duane Hall, May 24, 2009
2. BLM Entry Sign to Earthquake Fault Road on US 50
studied and interpreted. The maximum intensity of the 1954 earthquake was X, the same as the 1964 quake in Alaska. The 1906 San Francisco earthquake measured XI on the scale.
Erected by Bureau of Land Management.
Location. 39° 12.701′ N, 118° 8.804′ W. Marker is near Fallon, Nevada, in Churchill County. Marker can be reached from Unnamed Road 0.6 miles west of Earthquake Fault Road. Click for map. Earthquake Fault Road is located 10 miles east of State Route 839 and 5.5 miles west of State Route 361. A BLM sign on US 50 directs you to the road and earthquake faults. The marker is located at the end of an unnamed road which intersects Earthquake Fault Road approx. five miles south of US 50. Marker is in this post office area: Fallon NV 89406, United States of America.
Other nearby markers. At least 4 other markers are within 9 miles of this marker, measured as the crow flies. Fairview Peak Earthquake Faults (approx. 4.9 miles away); Wonder (approx. 5.3 miles away but has been reported missing); Fairview (approx. 6.2 miles away); Middlegate Station (approx. 8.3 miles away).
Categories. EnvironmentNotable Events
Fault Exposed by 1954 Earthquake image. Click for full size.
By Duane Hall
3. Fault Exposed by 1954 Earthquake
Credits. This page originally submitted on , by Duane Hall of Abilene, Texas. This page has been viewed 265 times since then and 72 times this year. Photos:   1, 2, 3. submitted on , by Duane Hall of Abilene, Texas. • Syd Whittle was the editor who published this page. This page was last revised on June 16, 2016.
Editor’s want-list for this marker. Wide area view of the marker and its surroundings. • Can you help?
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