Why is it important to continuously monitor seismic data? a. to find out when earthquakes occurred in the past b. to map the location of all the largest earthquakes c. to know how strong future earthquakes will be d. to determine the location and magnitude of seismic activity

Seismic data should be continuously monitored "to determine the location and magnitude of seismic activity".

Explanation:

Determining the location and magnitude is of utmost importance in order to analyze the patterns of activity so that this information can later be used to predict the earthquakes that could possibly happen in the future, and measures will be taken accordingly.

The smaller earthquakes provide enough information that helps seismologists to evaluate the distribution, frequency, and the hazards caused so that precautions could be taken for the same. All this information collected is extremely useful in creating building designs and land use planning decisions. Tsunami occurrences can also be monitored with the seismic data obtained.