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Contoh Report Text Tentang Bencana Alam Tsunami, Gempa Bumi,  Dan Gunung Meletus

September 26, 2016 | Text

Membaca report text tentang bencana alam dari COBI akan membuat sobat terbiasa dengan bahasa ilmiah. Memang adlam contoh report text tentang bencana alam bahasa yang digunakan adalah bahasa ilmiah. Dalam report text, berisi laporan dari sebuah objek yang diamati, karena itulah, report text berisikan data ilmiah.

Berikut adalah contoh report text tentang bencana alam dari

Contoh Report Text tentang Bencana Alam Terbaru

Contoh Report Text Tentang Bencana Alam Tsunami Di Jepang

  1. Contoh Report Text Tentang  Bencana Alam Tsunami Di Jepang

On March 11, 2011, a magnitude-9 earthquake shook northeastern Japan, unleashing a savage tsunami. The earthquake was centered on the seafloor 45 miles (72 kilometers) east of Tohoku, at a depth of 15 miles (24 km) below the surface. The shaking lasted about six minutes.

Residents of Tokyo received a minute of warning before the strong shaking hit the city, thanks to Japan’s earthquake early warning system. The country’s stringent seismic building codes and early warning system prevented many deaths from the earthquake, by stopping high-speed trains and factory assembly lines. People in Japan also received texted alerts of the earthquake and tsunami warnings on their cellphones.

Less than an hour after the earthquake, the first of many tsunami waves hit Japan’s coastline. The tsunami waves reached run-up heights (how far the wave surges inland above sea level) of up to 128 feet (39 meters) at Miyako city and traveled inland as far as 6 miles (10 km) in Sendai. The tsunami flooded an estimated area of approximately 217 square miles (561 square kilometers) in Japan.

The tsunami caused a cooling system failure at the Fukushima Daiichi Nuclear Power Plant, which resulted in a level-7 nuclear meltdown and release of radioactive materials. The electrical power and backup generators were overwhelmed by the tsunami, and the plant lost its cooling capabilities. In July 2013, TEPCO, the Tokyo Electric Power Company, admitted that about 300 tons of radioactive water continues to leak from the plant every day into the Pacific Ocean.

Contoh Report Text Bencana Gempa Bumi

  1. Contoh Report Text Tentang Bencana Alam Gempa Bumi

It is estimated that there are 500,000 detectable earthquakes in the world each year. 100,000 of those can be felt, and 100 of them cause damage. The largest recorded earthquake in the world was a magnitude 9.5 (Mw) in Chile on May 22, 1960. The world’s deadliest recorded earthquake occurred in 1556 in central China. It struck a region where most people lived in caves carved from soft rock. These dwellings collapsed during the earthquake, killing an estimated 830,000 people. In 1976 another deadly earthquake struck in Tangshan, China, where more than 250,000 people were killed.

Before electronics allowed recordings of large earthquakes, scientists built large spring-pendulum seismometers in an attempt to record the long-period motion produced by such quakes. The largest one weighed about 15 tons. There is a medium-sized one three stories high in Mexico City that is still in operation. The first “pendulum seismoscope” to measure the shaking of the ground during an earthquake was developed in 1751, and it wasn’t until 1855 that faults were recognized as the source of earthquakes.

Most earthquakes occur at depths of less than 80 km (50 miles) from the Earth’s surface. The magnitude of an earthquake is a measured value of the earthquake size. The magnitude is the same no matter where you are, or how strong or weak the shaking was in various locations. The intensity of an earthquake is a measure of the shaking created by the earthquake, and this value does vary with location.

Moonquakes (“earthquakes” on the moon) do occur, but they happen less frequently and have smaller magnitudes than earthquakes on the Earth. It appears they are related to the tidal stresses associated with the varying distance between the Earth and Moon. They also occur at great depth, about halfway between the surface and the center of the moon.

Contoh Report Text Bencana Gunung Meletus

  1. Contoh Report Text Tentang Bencana Alam Gunung Meletus

A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth. When pressure builds up, eruptions occur. There are more than 500 active volcanoes in the world. More than half of these volcanoes are part of the “Ring of Fire,” a region that encircles the Pacific Ocean.

An erupting volcano can trigger tsunamis, flash floods, earthquakes, mudflows and rockfalls. In an eruption, gases and rock shoot up through the opening and spill over or fill the air with lava fragments. Eruptions can cause lava flows, hot ash flows, mudslides, avalanches, falling ash and floods. Fresh volcanic ash, made of pulverized rock, can be harsh, acidic, gritty, glassy and smelly. The ash can cause damage to the lungs of older people, babies and people with respiratory problems.

The sound of an eruption volcano can be quiet and hissing or explosive and booming. The loud cracks travel hundreds of miles and do the most damage, including hearing loss and broken glass. Volcanic lightning occurs mostly within the cloud of ash during an eruption, and is created by the friction of the ash rushing to the surface. Roughly 200 accounts of this lightning have been witnessed live.

Contoh Report Text Tentang Bencana Alam Terbaik

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