Rabu, 13 April 2011

“the biggest earthquake in 20 years is JAPAN”

“the biggest earthquake in 20 years is JAPAN”



A massive earthquake measuring 8.9 hit northeastern Japan, on Friday afternoon, and caused many casualties, fires, and tsunamis around 4 meters along the coast of the country. After a quake measuring 8.9 that, there are also a number of strong aftershocks and triggered tsunami warnings as high as 10 meters. The quake caused buildings shook in the capital Tokyo. Hundreds of office workers and shoppers spilled into the street in shopping centers Hitotsugi in Akasaka, central Tokyo.

Not only one of the biggest earthquake in 20 years. The quake measuring 8.9 that occurred in Japan, on Friday (11/03/2011) afternoon, was recorded as the biggest earthquake in history that ever happened in the land of Sakura's. Throughout the record of seismicity in Japan, has not been that strong earthquakes.

The U.S. Geological Survey (USGS) had earlier stated that the quake measuring 7.9 and centered at a depth of 24.3 km about 130 km east of Sendai, on the main island of Honshu. However, the agency later said the quake measuring 8.9.
Pacific coast in northeastern Japan, called Sanriku, has suffered from the earthquake and tsunami in the past. Last Wednesday, the area was hit by an earthquake measuring 7.2 magnitude. In 1933, an earthquake measuring 8.1 Richter in the area killed more than 3,000 people.

Earthquakes are common in Japan, one of the most seismically active regions in the world. About 20 percent of an earthquake measuring 6.0 magnitude or more occurred in Japan.

Japan is located in the path of the volcano or the Pacific Ring of Fire, including areas which are often affected by the earthquake. Several large earthquake data recorded in Japan is an earthquake measuring 8.5 on the Sanriku in 1896 that killed 27,000 people and caused tsunamis as high as 25 meters. In addition, the Kobe earthquake that occurred in 1995 measuring 6.9 on the Richter scale and killed 5502 people.


Japan quake measuring 8.9 on Richter scale this. The quake occurred at 14:46 local time and was centered 376 km southeast of Tokyo. This earthquake has caused tsunamis and potentially as high as 4 meters to 10 meters tsunami. Tsunami warning extended to the Pacific, the Philippines, and Indonesia.
In Indonesian:
Gempa dahsyat berkekuatan 8,9 menghantam timur laut Jepang, Jumat siang, dan menyebabkan banyak korban, kebakaran, dan tsunami sekitar 4 meter di sepanjang pantai negara itu. Setelah gempa berkekuatan 8,9 itu, terjadi sejumlah gempa susulan yang juga kuat dan memicu peringatan tsunami setinggi 10 meter. Gempa tersebut menyebabkan bangunan terguncang di ibu kota Tokyo. Ratusan pekerja kantor dan pengunjung toko tumpah ke jalan Hitotsugi di pusat perbelanjaan di Akasaka, pusat kota Tokyo.
Bukan hanya salah satu gempa terbesar dalam 20 tahun terakhir. Gempa berkekuatan 8,9 yang terjadi di Jepang, Jumat (11/3/2011) siang, tercatat sebagai gempa terbesar sepanjang sejarah yang pernah terjadi di Negeri Sakura itu. Sepanjang catatan kegempaan di Jepang, belum pernah terjadi gempa sekuat itu.
Badan Survei Geologi AS (USGS) sebelumnya menyatakan bahwa gempa tersebut berkekuatan 7,9 dan berpusat di kedalaman 24,3 km sekitar 130 km di sebelah timur Sendai, di pulau utama Honshu. Namun, badan itu kemudian menyatakan bahwa gempa berkekuatan 8,9.
Pantai Pasifik di timur laut Jepang, yang disebut Sanriku, telah menderita akibat gempa dan tsunami pada masa yang lalu. Rabu lalu, daerah itu dilanda gempa berkekuatan 7,2 SR. Tahun 1933, gempa berkekuatan 8,1 SR di daerah tersebut menewaskan lebih dari 3.000 orang.
Gempa bumi merupakan hal biasa di Jepang, salah satu daerah seismik paling aktif di dunia. Sekitar 20 persen gempa berkekuatan 6,0 SR atau lebih terjadi di Jepang.
Jepang yang terletak di jalur gunung api atau Cincin Api Pasifik memang termasuk wilayah yang sering terlanda gempa. Beberapa data gempa besar di Jepang yang terekam adalah gempa berkekuatan 8,5 di Sanriku pada tahun 1896 yang menewaskan 27.000 orang dan menyebabkan tsunami setinggi 25 meter. Selain itu adalah gempa Kobe yang terjadi pada tahun 1995 berkekuatan 6,9 skala richter dan menewaskan 5.502 orang.
Gempa Jepang hari ini berkekuatan 8,9 skala richter. Gempa terjadi pada pukul 14.46 waktu setempat dan berpusat di 376 km tenggara Tokyo. Gempa ini telah mengakibatkan tsunami setinggi 4 meter dan berpotensi tsunami hingga 10 meter. Peringatan tsunami diperluas hingga Pasifik, Filipina, dan Indonesia.

sources : http://internasional.kompas.com/read/2011/03/11/14404835/Gempa.Jepang.Timbulkan.Tsunami.4.Meter

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