Driving distance from Morro Bay, CA to Monterey, CA. The total driving distance from Morro Bay, CA to Monterey, CA is 143 miles or 230 kilometers. Your trip begins in Morro Bay, California. It ends in Monterey, California. If you are planning a road trip, you might also want to calculate the total driving time from Morro Bay, CA to Monterey, CA so you can see when you'll arrive at your destination.
Most composite volcanoes have a crater at the summit which contains a central vent or a clustered group of vents. Lava either flow through breaks in the crater wall or from fissures on the flanks of the cone. Lava, solidified within the fissures, form dikes that act as ribs which help to strengthen the cone.
How do volcanoes form? Deep inside Earth, between the molten iron core and the thin crust at the surface, there is a solid body of rock called the mantle. When rock from the mantle melts, moves to the surface through the crust, and releases pent-up gases, volcanoes erupt. Extremely high temperature and pressure cause the rock to melt and become liquid rock or magma. When a large body of magma has formed, it rises thorugh the denser rock layers toward Earth's surface.