How Do Scientists Find the Epicenter of an Earthquake

They are the scientists who study earthquakes.

• Seigmographists

• Seismologists

• Seismologihists

• Seismogists

Which of the seismic waves travels the fastest?

• Instant Wave

• Surface Wave

• Secondary Wave

• Primary Wave

What method do seismologists use in locating an epicenter?

• Focus Group Discussion

• Interview

• Observation

• Triangulation

To determine the lag time, simply get the _____________________ of S-wave and P-wave.

Tags

NGSS.MS-PS4-2

As the distance from the epicenter decreases, the time interval between the arrival of the P-waves and the S-waves on the seismograph will _________________

• decrease

• increase

• remain the same

• zero

Waves can be detected by earthquake monitoring instruments called ________________ .

Tags

NGSS.MS-ESS3-2

Where is the epicenter for this earthquake located based on triangulation?

• A
• B
• C
• D

Tags

NGSS.MS-ESS3-2

Where are the P-waves located on this seismogram?

• A
• B
• C
• D

Tags

NGSS.MS-ESS3-2

Which of the statements best describes the relationship between lag time and distance from epicenter? 

• The longer the lag time, the closer the distance.
• The longer the lag time, the farther the distance. 
• The shorter the lag time, the farther the distance. 
• There is no relationship. 

How many seismograph stations are used to triangulate the epicenter?

• 1

• 2

• 3

• 4