Hawaii

Details on Earthquakes

How Do Earthquakes Happen

Earthquakes are usually caused when rock underground suddenly breaks along a fault. This sudden release of energy causes the seismic waves that make the ground shake. When two blocks of rock or two plates are rubbing against each other, they stick a little. They don't just slide smoothly; the rocks catch on each other. The rocks are still pushing against each other, but not moving. After a while, the rocks break because of all the pressure that's built up. When the rocks break, the earthquake occurs. During the earthquake and afterward, the plates or blocks of rock start moving, and they continue to move until they get stuck again. The spot underground where the rock breaks is called the focus of the earthquake. The place right above the focus (on top of the ground) is called the epicentre of the earthquake

Info On Earthquakes In Hawaii

Earthquakes in Hawaii are closely linked to the islands’ volcanoes. Even though hardly noticeable, thousands of earthquakes happen every year beneath the Big Island of Hawaii. The Big Island is the youngest of the Hawaiian Islands and is still growing today. Here, flowing erupting volcanoes and flowing lava can be witnessed. The island’s active volcanoes are Kilauea, Mauna Loa and Loihi. Eruptions and magma movements within these volcanoes are usually accompanied by frequent small earthquakes. There earthquakes, also called volcanic earthquakes, originate in regions of magma storage or along paths that magma follows as it rises and moves before eruption.

list of disasters

Here are some locations in Hawaii that had an earthquake disaster.


June 1823

Kaimu


Feb 20, 1834

Hilo


May 31, 1877

Hilo


Sep 13, 1871

Hilo


Feb 20, 1871

Lanai

Mitigation

(1) Improve your home’s earthquake resilience Evaluate your home’s earthquake resilience, and improve it through steps such as fastening down furniture and putting anti-shatter coatings on glass windows.

(2) Stockpile water and food stuffs You should have at least three days’ worth of drinking water and foodstuffs stockpiled. You should also have radios and flashlights prepared.

(3) Participate in disaster training Get to know the people in your community better by getting actively involved in community disaster training.

(4) Discuss disaster preparedness with your family Verify how you will get in touch with each other and where the relief shelters are.

2. What To Do After an Earthquake

(1) The first two minutes after an earthquake

  • Protect yourself.
    Stay away from furniture that could topple over, and hide under a desk or table. Do not panic and run outside.


(2) Immediately following an earthquake

  • Prevent fires and secure escape routes.
    Shut off gas valves and unplug electrical cords. If a fire breaks out, calmly begin to put it out. Secure escape routes by opening doors and windows.

Sources