Tsunamis

A:

Tsunamis are caused by undersea volcanoes or earthquakes that push massive amounts of energy through the water. Earthquakes are the most common cause, but landslides can create tsunamis as well.

See Full Answer
Filed Under:
  • How Can a Tsunami Be Prevented?

    Q: How Can a Tsunami Be Prevented?

    A: No known way to prevent a tsunami from occurring exists. Individuals can take steps to be prepared for a tsunami, and warning systems can help get people out of harm's way if an impending tsunami is predicted.
    See Full Answer
    Filed Under:
  • How Do Tsunamis Affect People?

    Q: How Do Tsunamis Affect People?

    A: While an immediate effect of a tsunami is the destruction of life and property, tsunamis also create a health crisis. Not only do tsunamis wipe out buildings and carry many of the things in their path away, they leave behind a crippled infrastructure that makes it extremely difficult to provide basic services to the people who survived.
    See Full Answer
    Filed Under:
  • Where Do Most Tsunamis Occur?

    Q: Where Do Most Tsunamis Occur?

    A: Tsunamis occur most often in the Pacific Ocean and Indian Ocean, according to the National Oceanic and Atmospheric Administration’s Center for Tsunami Research. Areas along the Pacific Rim are most vulnerable due to the frequent earthquakes that occur. Tsunamis also occur less frequently in the Mediterranean Sea.
    See Full Answer
    Filed Under:
  • Where Do Tsunamis Happen Most?

    Q: Where Do Tsunamis Happen Most?

    A: Tsunamis occur with the most frequency in the Pacific Ocean and around Indonesia. This is because of the properties of the Pacific Rim; it has a high number of active submarine earthquake zones, which are a major factor in the occurrence of tsunamis. However, it is also possible for tsunamis to occur in other places. The Mediterranean Sea and the Caribbean Sea are also both susceptible to tsunamis.
    See Full Answer
    Filed Under:
  • Where Do Tsunamis Form?

    Q: Where Do Tsunamis Form?

    A: A tsunami begins above an undersea earthquake, landslide or volcanic eruption along the ocean floor, explains Lisa Gardiner of the National Earth Science Teachers Association. In the case of an earthquake, when the movement along a fault moves the seafloor upward, water also pushes upward and becomes a tsunami wave.
    See Full Answer
    Filed Under:
  • What Causes a Tsunami?

    Q: What Causes a Tsunami?

    A: Tsunamis are caused by undersea volcanoes or earthquakes that push massive amounts of energy through the water. Earthquakes are the most common cause, but landslides can create tsunamis as well.
    See Full Answer
    Filed Under:
  • How Are Tsunamis Measured?

    Q: How Are Tsunamis Measured?

    A: Tsunamis are measured by their runup,which is the difference between an observed sea level and the distance the tsunami waters reach on shore. This is generally measured once the danger has passed, so debris and destruction of plant life are often used as gauges of runup.
    See Full Answer
    Filed Under:
  • What Is a Tsunami?

    Q: What Is a Tsunami?

    A: A tsunami is a series of waves generated by a disturbance on the ocean floor. This disturbance can be caused by earthquakes, landslides, volcanic eruptions, explosions or meteorites. The waves have very long wavelengths, which can travel hundreds of miles across the ocean. As the waves reach the continental shelf, they can grow to be several meters in height and cause extensive destruction along the coastline.
    See Full Answer
    Filed Under:
  • How Do Tsunamis Form?

    Q: How Do Tsunamis Form?

    A: Tsunamis are massive waves that form when an ocean is disturbed by an earthquake, landslide, volcanic eruption or other disruptive event. Underwater earthquakes, which occur at the boundaries of tectonic plates, are one of the most common causes of tsunamis. When one plate moves up or down, it displaces water, and it is this displaced water that becomes the tsunami wave.
    See Full Answer
    Filed Under:
  • What Is the Japanese Tsunami Death Toll?

    Q: What Is the Japanese Tsunami Death Toll?

    A: As of Feb. 10, 2014, the Japanese tsunami death toll is 15,884. On March 11, 2011, at 2:46 p.m. local time, a 9.0 magnitude earthquake occurred 15.2 miles deep at 231 miles northeast of Tokyo, Japan, causing a tsunami with 30-foot waves that damaged several nuclear reactors in the area.
    See Full Answer
    Filed Under:
  • How Do You Prepare for a Tsunami?

    Q: How Do You Prepare for a Tsunami?

    A: Before a tsunami is imminent, people living in areas where tsunamis are possible should construct tsunami emergency kits and organize a family communications plan. When a tsunami watch is issued, people should tune into the National Oceanic and Atmospheric Administration's weather service, ensure the emergency kit is well stocked, locate family members and prepare to evacuate. When a tsunami warning is issued, everyone should evacuate to higher ground.
    See Full Answer
    Filed Under:
  • Could a Tsunami Hit New York?

    Q: Could a Tsunami Hit New York?

    A: Any city located along marine coastal regions could fall prey to a tsunami. However, the chances of a tsunami hitting New York are slim because the Atlantic Ocean is not as prone to the earthquakes which fuel tsunami activity. In order for major tsunami devastation to occur, it needs the right location and specific conditions, such as a strong quake (6.5 and above) as well as shallow coastal waters, which allow wave height to build up.
    See Full Answer
    Filed Under:
  • How Is a Tsunami Formed?

    Q: How Is a Tsunami Formed?

    A: The formation of a tsunami is a direct result of underwater earthquakes. The energy released during underwater earthquakes is transferred to the water, moving it upward and creating huge waves.
    See Full Answer
    Filed Under:
  • Q: What Effects Do Tsunamis Have on People?

    A: Tsunamis have numerous negative impacts on people: they cause illness and injury, even death, cause homelessness and job loss and destroy infrastructure in human communities. Tsunamis pose short-term and long-term threats to economies and human health. They often contaminate food and water supplies, cripple power lines and cause damage by bringing debris into homes.
    See Full Answer
    Filed Under:
  • Q: What Causes Tsunamis to Happen?

    A: Tsunamis usually occur when earthquakes take place underneath the ocean at tectonic plate boundaries, or when volcanic eruptions or landslides take place in the ocean. Underwater earthquakes cause the ocean floor to fall and rise abruptly, which results in large volumes of water being displaced. This displaced water then forms into massive rolling waves that eventually become a tsunami.
    See Full Answer
    Filed Under:
  • Q: Do the Philippine Islands Get Hit by Tsunamis?

    A: The Philippine islands are susceptible to tsunamis when a large enough earthquake occurs within a certain distance and depth of its coast. When large earthquakes occur off its coast, a tsunami warning is typically issued for the region nearby, causing people living on the coast to move to higher ground.
    See Full Answer
    Filed Under:
  • Q: How Do Underwater Earthquakes Cause Tsunamis?

    A: Underwater earthquakes push water upward to create the initial movement, then gravity pulls the water downward, creating the horizontal force that forms the tsunami. The waves travel through the ocean in a similar fashion to ripples created by throwing a stone into a body of water.
    See Full Answer
    Filed Under:
  • Q: What Are the Effects of Tsunamis?

    A: Caused by an earthquake on an ocean's bed, a tsunami is one of the deadliest and most destructive natural disasters on Earth. The flooding and associated effects of the tsunami that started in the Indian Ocean in December, 2004 caused the deaths of an estimated 300,000 to 500,000 people across several countries, including India and Indonesia.
    See Full Answer
    Filed Under:
  • What Kind of Damage Can a Tsunami Cause?

    Q: What Kind of Damage Can a Tsunami Cause?

    A: Tsunamis can cause tremendous destruction of property and loss of lives. They can completely destroy buildings and leave towns in a devastated state. Small tsunamis are non-destructive, and they happen frequently due to minor earthquakes; however, large tsunamis reach incredible heights, and they savagely attack coastlines.
    See Full Answer
    Filed Under:
  • Q: What Caused the Thailand Tsunami?

    A: The main cause of the tsunami in Thailand was the sliding of part of the Earth's outer layer called the India plate below another segment known as the Burma plate. Geologically, subduction is the name given to the process that caused this Tsunami.
    See Full Answer
    Filed Under:
  • Q: What Does a Tsunami Sound Like?

    A: Witnesses to tsunamis report they make a roaring sound as they approach, similar to the sound of a freight train or a jet airplane. Tsunamis are triggered by underwater earthquakes, which are reported to make similar sounds. A hydrophone captured the sound of the 9.0 earthquake that struck Japan in 2011 and caused a tsunami across the Pacific Ocean, which was like the sound of a rocket taking off.
    See Full Answer
    Filed Under: