(S-waves) travel slower than P-waves and move through the Earth's interior at approximately 87% its P-wave speed.

What causes aftershocks?

An earthquake occurs when there's a sudden release of energy in the Earth's crust, typically as a result of tectonic plate movement. This release creates seismic waves that can cause widespread destruction.

  • Discuss and prepare emergency response plans

    • Understanding Earthquakes

  • Develop knowledge through educational resources
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    Relevance for Individual and Community Preparedness

    Earthquake Mechanism

    S-waves
  • There's no guaranteed earthquake prediction method.
  • At risk individuals, law enforcement, government agencies, civil engineers, and insurance providers will benefit from accessible disaster resources.

    • What is a tsunami?

    Photography of Small Blue and Brown Bird · Free Stock Photo
    The Earth's crust is the outermost solid layer, comprising continental and oceanic plates that move continually.

    Earthquake Waves

  • Myth: Building height and location reduce the impact of earthquakes. Reality, *both can significantly impact damage and displacement.

      • The recent trend of disaster awareness is attributed to an increase in natural disasters and awareness campaigns, including stories about evolving earthquake resilience and areas for improvement.

      The 1906 San Francisco Earthquake: A Historical Disaster with Ongoing Relevance

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      Take the First Step in Understanding and Preparation

      Growing Interest in the US

      These smaller shocks occur as the Earth's crust continues to adjust following an initial earthquake and can last for months or even years.

      Seismic waves travel through the Earth's layers, causing damage based on their speed and type.

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      P-waves

    • Myth: Tattooed response preparedness time can prevent catastrophe. Reality, proper safety measures still impact homes beyond structural reinforcement.

      • Debunking Common Misconceptions About Earthquakes

      The 1906 San Francisco earthquake is still remembered as one of the most devastating natural disasters in US history. In the aftermath of the quake, it's estimated that over 3,000 people lost their lives. As discussions around disaster preparedness and building resilience grow, this event's significance takes center stage.

      • Evaluate and reduce structural, economic, and personal loss
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      Earthquake Risk and Reality

      What is the Earth's crust? Primary waves (P-waves), travels at high speeds, up to 6 kph.

      Movement between plates results in potential earthquakes, released energy generating destructive waves.

    • Understanding local seismicity is essential for proper preparedness and evacuation strategies.
      • Tsunamis occur when a massive earthquake causes a displacement of the ocean's water, resulting in a high-speed wave.

    • Certain areas are particularly susceptible to earthquakes due to fault lines.