Hundreds of hikers rescued after earthquake Palu, Indonesia CNN Mass graves were dug Monday as Indonesian authorities rushed to bury hundreds of people killed by an earthquake and tsunami that cracked streets, tore down buildings and washed away homes on the island of Sulawesi.
Full Answer A tsunami is a series of large waves created by an undersea earthquake, landslide, or volcanic eruption. When the position of the ocean floor shifts abruptly as a result of one of these events, water becomes displaced, causing the waves that can grow to become a tsunami.
Tsunamis can move at up to miles per hour, making them able to cross an ocean in less than a day. Tsunami and people a tsunami hits land, the trough of the wave, or the area of the wave below the highest point often reaches land first.
This causes the water level at the coast to recede suddenly before the tsunami hits. The waves often come in a series after the initial wave, a phenomenon called a wave train. Tsunamis do not always appear as a series of large waves, sometimes instead presenting as a sudden, forceful rising of water levels.
Small and undetectable tsunamis occur almost every day with little to no effect, appearing as fast moving strong tides, but larger tsunamis have devastating effects to life and land that are often irreversible.
The central effect of large tsunamis is massive loss of human life. With no time to escape, tsunamis cause near instant death, usually by drowning, but also by collapsing buildings, electrocution and other causes.
Sincetsunamis have killed more thanpeople. The severe flooding that occurs as a result of a tsunami also damages sewer systems, water supplies, and soil.
Stagnant and contaminated water leads to malaria and other diseases, causing illness, infection, and death to spread rapidly. Soil becomes salinized from sea water and debris, affecting long-term yields of crops.
The tall and fast-moving waves also damage property and permanently alter the landscape, sometimes wiping out entire islands. They destroy everything in their path, including buildings, trees, power lines, bridges, cars, boats and more, leaving behind them a mass of solid waste and debris that is almost impossible to clean up.
They also destroy animal life, insects, plants, and natural resources. Hazardous materials and toxic substances are also a concern, as asbestos, oil, fuel, and other industrial raw materials and chemicals often leak as a result of property damage.
After a tsunami sweeps through an area, the communities that were affected often need both immediate and long term help. Rescue teams traverse the affected area searching for people who have become trapped in their homes or under debris, and the governments of other nations often provide aid in the form of funds and supplies.
Reconstruction efforts are often lengthy and costly, as help is needed to rebuild infrastructure, clear rubble from collapsed structures, and demolish any buildings that are unsafe to enter.
These clean up efforts can take years, and significantly hurt the economy of the affected area.People in Japan also received texted alerts of the earthquake and tsunami warnings on their cellphones. Deaths The number of confirmed deaths is 15, as of June 10, , according to the.
Sep 12, · Many people from the Peraliya area of Sri Lanka where 2, people died and families became homeless had problems up to two years after the tsunami.
They were anxious and stressed because they felt like their life was in danger from another timberdesignmag.coms: A Japanese government study found that 58% of people in coastal areas in Iwate, Miyagi, and Fukushima prefectures heeded tsunami warnings immediately after the quake and headed for higher ground.
Of those who attempted to evacuate after hearing the warning, only five percent were caught in the tsunami.
One of the biggest and worst effects of a tsunami is the cost to human life because unfortunately escaping a tsunami is nearly impossible. Hundreds and thousands of people are killed by tsunamis. Since alone, tsunamis have been responsible for the loss of more than , lives.
A tsunami (from Japanese: The Indian Ocean tsunami was among the deadliest natural disasters in human history, with at least , people killed or Kanji: 津波. 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.