222k views
4 votes
What is the lag time if an earthquake occurred at 9:06:20 am and is located 6000 km from the station?

A) 0 minutes
B) 5 minutes
C) 10 minutes
D) 20 minutes

1 Answer

3 votes

Final answer:

The lag time between an earthquake and its detection at a seismic station depends on the distance and speed of seismic waves. In this case, the lag time is approximately 16.67 minutes.

Step-by-step explanation:

The lag time between an earthquake and its detection at a seismic station depends on the distance between the earthquake's epicenter and the station, as well as the speed of the seismic waves. In this case, the earthquake occurred at 9:06:20 am and is located 6000 km from the station. We need to calculate the time it takes for the seismic waves to travel this distance.

Assuming that the seismic waves travel at an average speed of 6 km/s, we can use the formula:

Time = Distance / Speed

Plugging in the values, we get:

Time = 6000 km / 6 km/s = 1000 seconds

Since there are 60 seconds in a minute, the lag time would be:

1000 seconds / 60 = 16.67 minutes

So, the lag time would be approximately 16.67 minutes or 16 minutes and 40 seconds.

User Sunilda
by
7.9k points