Pacific Disaster Center Fostering Disaster Resilient Communities  

Hazards Information


Preparing for a natural hazards, whether a hurricane, tsunami, flood, or other event, can mean the difference between life and death. We've put together a list of major hazards and what you can do before and during an event to maximize safety and minimize loss.
  • Earthquakes

    The U.S. Geological Survey estimates that several million earthquakes occur each year, but only a few of these are strong enough to cause significant damage. Large-magnitude earthquakes are among the most destructive hazards on Earth and can change the landscape over thousands of square miles. Find information about earthquakes »

  • Tsunami

    Tsunami waves travel at speeds of 300-600 miles per hour (483-966 km/hr), and the first wave may not be the largest one. Although most tsunamis are caused by earthquakes in oceanic and coastal regions, they can also be triggered by underwater landslides and submarine volcanic eruptions that are powerful enough to displace the surrounding water. Find information about tsunamis »

  • Tropical Cyclones

    Tropical cyclones produce heavy rainfall and sustained winds that can exceed 155 miles per hour (249 km/hr). PDC provides daily coverage of tropical cyclone activity and worldwide severe weather on the PDC Weather Wall year-round for the Pacific and Indian Oceans, and during the hurricane season for the Atlantic Ocean, Caribbean, and Gulf of Mexico. Find information about tropical cyclones »

  • Floods

    Floods are one of the most common hazards on Earth and have claimed millions of lives in the past 100 years. Flooding can be triggered by heavy rainfall, tsunamis, high astronomical tides, snow melt, ice jams, prolonged strong onshore winds, or a failure of dams/levees to trigger. Find information about floods »

  • Volcanoes

    Volcanoes are one of Earth's most destructive natural events. Eruptions can cover large areas and dramatically alter the landscape. Records are available for historic volcanic eruptions from the last 10,000 years. Find information about volcanoes »

  • High Surf

    High surf is triggered by storms or high winds in the open ocean that can create waves and can catch beachgoers off guard. Although general forecasts can be made about surf conditions, the timing of individual waves can never be predicted. Significant wave height data is available for the world's oceans. Find information about high surf »