Question

question:
strong earthquakes along the hayward fault near san francisco are forecasted to occur approximately every ____ years, with an 80-year margin of error.
answer input:
spelling counts but capitalization doesnt
140
feedback:
incorrect. the last major earthquake that the hayward fault produced was in 1868. try again.
previous submit

Explanation:

Geological research on the Hayward Fault shows its recurrence interval for strong earthquakes, with the last major event in 1868. The established forecasted average interval, paired with an 80-year margin of error, is 140 years was incorrect, the correct value is 150 years.

Answer:

150