Earthquakes Answers

Which statement about the Mercalli scale is true?

The scale has twenty ratings for an earthquake’s effects.

The scale rates an earthquake based on its total energy released.

The scale rates an earthquake according to how much damage it causes.

The scale is most useful when scientists use data from three or more seismographs.

Fill in the blank to complete each statement about measuring an earthquake’s magnitude.

Answers:

Blank 1:Richter

Blank 2:moment

Question text not available

Answer:

moment

How do geologists determine the location of an earthquake's epicenter?

By measuring the magnitude of the earthquake using the Mercalli scale.

By analyzing the chemical composition of rocks at the earthquake site.

By using seismograph data to triangulate the distance from multiple seismic stations.

By directly observing the surface rupture and fault displacement at the earthquake source.

Based on the seismograph measurements in the image, where is the epicenter of this earthquake?

Portland, OR

Salt Lake City, UT

San Francisco, CA

Los Angeles, CA

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