Earthquakes (Holt Science and Technology Earth Science pg. 224-239)
The Ring of fire is a big ring of where most of the volcanoes are located in and it is located in the ring of fire. When earthquakes happen the cracks they make are called faults. When tectonic plates push, pull, or slip that leads to earthquakes happen. A seismograph helps seismologists (people that study earthquakes) determine the location and strength of an an earthquake. The Richter magnitude scale is a scale that measures the strength of an earthquake and it was made in the 1930's. The areas on a fault where few earthquakes have occurred is a seismic gap. In the U.S. most of the earthquakes are in California. The focus is the starting point of the earthquake.
The Ring of fire is a big ring of where most of the volcanoes are located in and it is located in the ring of fire. When earthquakes happen the cracks they make are called faults. When tectonic plates push, pull, or slip that leads to earthquakes happen. A seismograph helps seismologists (people that study earthquakes) determine the location and strength of an an earthquake. The Richter magnitude scale is a scale that measures the strength of an earthquake and it was made in the 1930's. The areas on a fault where few earthquakes have occurred is a seismic gap. In the U.S. most of the earthquakes are in California. The focus is the starting point of the earthquake.