This is a guide by Online PhD Programs

Earthquakes are the result of the earth releasing stress related energy from within the earths crust. When tectonic plates shift or break they cause waves that are intense enough cause tremors. These tremors shake the ground and can cause intense destruction or be so mild that people can not feel the tremor. The sudden shifting of the plates and the buildup of stress creates an unpredictable earthquake. In certain geographical areas buried unidentified faults make it increasingly difficult for scientist to interpret where an earthquake might occur. The following resources provide scientific information about the causes and processes of earthquakes along with safety information from government associations:

• Windows to the Universe- Beginner, intermediate, and advanced lesson on earthquakes.
• What is an Earthquake- Tutorial about earthquakes.
• Earthquakes-Lesson on what is an earthquake.
• What Exactly is an Earthquake- New Mexico Bureau of Geology defines earthquake.
• Earthquakes, What are they?- Module for describing earthquakes.
• Ask a Scientist- Scientist describes the causes of earthquakes.
• What Causes Earthquakes- Theories behind earthquakes.
• The Causes of Earthquakes - Causes of earthquakes in Pacific Northwest America.
• Rethinking the Causes of Earthquakes- A study by the California Technical University that considers other causes of earthquakes.
• What to do before- Six ways to prepare for an earthquake.
• Earthquake tip Sheets- California state earthquake preparedness guide.
• How to Prepare- A guide for preparing before, during , and after a earthquake.
• Be Prepared- The Center for Disease Control and Prevention provides pertinent information in preparing for a natural disaster.
• Earthquakes Hazards- Frequent answers and questions on measuring earthquakes by  the United States Geological Survey’s Earthquake Program.
• Earthquake Magnitude- A Michigan Technical University article on measuring the magnitude of earthquakes.
• How are Earthquakes Measured?- The University of Minnesota describes the two numbers that are used to measure earthquakes.
• Measurements of Earthquakes- Natural Disaster course at Tulane University explains how earthquakes are measured.
• Recent Earthquakes- A list of earthquakes within the last 7 days from the USGS
• Measuring Earthquakes-University of Arizona Geoscience department tutorial on measuring earthquakes.
• Earthquakes Do's and Dont's- Four actions to take during a earthquake.
• What to do During an Earthquake- A short guide on what to do during a earthquake.
• Washington State Earthquake Hazard Guide- General information in form of a table on what to do while an earthquake is taking place.
• Earthquake Preparedness- Rules to follow during an earthquake.
• Earthquake Preparedness And Safety - Las Vegas earthquake safety guide.
• Earthquakes and Fire Safety- United States Fire Administration fire safety tips during an earthquake.
• Safety Tips-The fire department of Los Angeles safety tips for earthquake preparedness.
• Earthquake Safety Tips- National Geographic safety tips for an earthquake.
• Top Ten Earthquakes- Table of the largest earthquakes in the world.
• The Last Two Decades- List of the most significant earthquakes in the last 20 years.
• Historical Earthquakes- Descriptions of time, magnitude, and destruction of historical earthquakes.
• Earthquake Archives- Archives of historical worldwide earthquakes.