The effects of an earthquake range from mild to severe and include structural damage, damaged gas lines, tidal waves, fires, avalanches and flooding. The amount of damage an earthquake can cause depends greatly on the size of the earthquake. The 1994 earthquake in Northridge, California was a magnitude 6.7, caused 57 deaths, 5,000 injuries, and damaged homes, bridges and structures.Know More
The amount of structural damage that can occur during an earthquake with a magnitude of 4.0 or higher depends on the construction of the structure. In California, many newer structures are specifically designed to withstand earthquakes, but some of the older buildings do not respond well to ground motions.
Earthquakes are defined as an intense shaking of the ground that occurs when a fracture in the earth's rocks causes the ground to shift. Rock fractures are also referred to as faults, which is where the term fault line developed. Fault lines are the specific locations of each fault, and they are continually studied and monitored by earth scientists.
Earthquakes occur at a moment's notice, and it is important for homeowners to be as prepared as possible in the event of a severe quake. This means keeping an earthquake kit with flashlights, water, batteries and spare food, as well as taking steps to ensure the home structure is secure.Learn More
Finding the epicenter of an earthquake requires coordination between at least three seismographs separated by, ideally, hundreds of miles. This is because a seismograph is only capable of registering the strength and amplitude of an earthquake, which together give the distance to the epicenter, not its direction.Full Answer >
An adequate earthquake survival kit includes a first aid kit, a home survival kit, a car survival kit and a work survival kit. The first aid kit and home survival kit should have enough supplies to last for three days.Full Answer >
California has a relatively high number of earthquakes due to its position on both the Pacific and North American Plates. These plates are in constant motion, and earthquakes occur when their sides slip against one another suddenly.Full Answer >
A diagram that uses the Richter scale is used to measure the magnitude of an earthquake. When an earthquake takes place, a device called a seismograph records the earthquake's vibration, and multiple seismographs can form a coherent picture. From the resulting diagram, the earthquake's force can be determined.Full Answer >