You might recognize that a tsunami is approaching because the ocean tide begins to recede to an extremely low level.
Over time, pressure continues to build in the tectonic plates, until suddenly, they shift in an earthquake. Aftershocks are common, but then a long time can pass before another one becomes likely.
<span>Well, I'm pretty sure there are four. The northern and southern hemispheres, and then the eastern and western hemispheres.</span>
Frankfurt is the capital of Kentucky.
Igneous rock and metamorphic rock.
