Science 10 Quiz Show

What is the point of origin of an earthquake?

• focus

• epicenter

• intensity

• magnitude

You were provided with data showing the arrival time of the P-wave and S-wave recorded from three seismic stations. Which of these can you possibly determine?

• The damage at the focus

• The distance to the earthquake

• The intensity of the earthquake

• The location of the epicenter

From the seismogram, the distance to the epicenter can be determined by measuring

• The arrival time of surface wave

• The difference in the arrival times of the P and S-waves

• The ratio of the amplitude of the largest P and S-waves

• The speed of the surface waves

If you visit a place in the Pacific known to be along converging plates, which of these should you not expect to see?

• active volcanoes

• mountain ranges

• rift valleys

• volcanic islands

TD=240s, compute for the distance of the epicenter from this station.

• 3000 km

• 3500 km

• 4000 km

• 6000 km

TD=320s, compute for the distance of the epicenter from this station.

• 3000 km

• 3500 km

• 4000 km

• 6000 km

TD=480s, compute for the distance of the epicenter from this station.

• 3000 km

• 3500 km

• 4000 km

• 6000 km

According to the P-S travel graph, how long does it take a P wave to travel 2000 km?

• 3 mins 40s

• 4 mins

• 4 mins 10s

• 5 mins

How long does it take an S wave to travel 4000 km?

• 12 mins

• 12 mins 40s

• 12 mins 50s

• 13 mins

What is the approximate distance to the epicenter if the difference in the arrival time of the P wave and S wave is 4 mins 50s?

• 2500 km

• 3000 km

• 3200 km

• 4000 km