Earthquake Epicenter

Which seismic station is closest to the epicenter of the earthquake?

• A

• B

• C

Which seismic station is furthest from the epicenter of the earthquake?

• A

• B

• C

What is the difference in arrival times of the P and S waves?

• 5 min

• 1 min

• 4 min

• 6 min

How can you tell that location X is closest to the epicenter of the earthquake?

• It has the biggest circle

• It has the smallest circle

• It is a circle on the map

• It is located near the top right corner

Tags

NGSS.MS-ESS3-2

Which letter represents the epicenter of the earthquake?

• A

• F

• G

• D

Tags

NGSS.MS-ESS3-2

What was the distance from this location to the earthquake's epicenter?
HINT: First you have to find the time difference between P and S wave arrivals.

• 1800 km

• 2500 km

• 3200 km

• 4100 km

Tags

NGSS.HS-PS4-1

How far from an earthquake epicenter is a city where the difference between the P-wave and S-wave arrival times is 6 minutes and 20 seconds?

• 1,700 km

• 9,900 km

• 3,500 km

• 4,700 km

A seismic station that is 4000 kilometers from the epicenter of an earthquake records the arrival time of the first P-wave at 10:00:00 (hours: minutes: seconds). At what time did the first S-wave arrive at this station?

• 9:54:20

• 10:05:40

• 10:07:05

• 10:12:40

Tags

NGSS.MS-PS4-2

What method do seismologists use in locating an epicenter?

• Focus Group Discussion

• Interview

• Observation

• Triangulation

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