Earthquake prediction is not highly reliable, but geologists do know a. more earthquakes happen along plate boundaries than happen at intraplate locations. b. that earthquakes never happen outside of seismic belts. c. that recurrence intervals can provide accurate short-term predictions. d. that in the long term, earthquakes happen at predictably spaced time intervals.

Earthquake prediction remains a challenging and complex task, and currently, there isn't a highly reliable method for short-term, precise earthquake prediction. However:

a. Correct: More earthquakes do indeed happen along plate boundaries than at intraplate locations. This is because most earthquakes are associated with the movement of tectonic plates.

b. Incorrect: Earthquakes can and do occur outside seismic belts, although they are more common along plate boundaries.

c. Incorrect: Short-term earthquake predictions are not reliably made based on recurrence intervals. The timing and magnitude of earthquakes are still not accurately predictable on short time scales.

d. Incorrect: In the long term, earthquakes do not happen at predictably spaced time intervals. While certain regions may experience earthquakes over extended periods due to tectonic activity, precise timing remains uncertain.

It's important to note that earthquake science and prediction methods are areas of ongoing research, and advancements may occur in the future.