Question

which strategy do geologists use to locate the center of an earthquake?
○ they only analyze local data
○ they collect data from seismographs
○ they measure arrival times of surface waves
○ they draw squares on maps for measurements

Explanation:

To locate the center of an earthquake, geologists use the data from seismographs. Analyzing only local data is insufficient. Measuring arrival times of P - waves (not just surface waves) and using triangulation (not drawing squares) are involved, but the key initial step is collecting seismograph data.

Answer:

B. They collect data from seismographs