Across
- 3. a numerical quantitative measure expressed usually as a multiple of a standard unit.
- 5. a broad zone forming as the Pacific Plate slides northwestward past the North American Plate.
Down
- 1. when two tectonic plates move away from each other.
- 2. a smaller earthquake following the main shock of a large earthquake.
- 4. Region along an active fault where stress is accumulating because no earthquakes have occurred there recently.