According to the US Geological Survey Web site news, Beijing time at 19:23 on the 30th, Japan's Ogasawara Islands waters occurred 8.5 earthquake, the focal depth of 696 km.
Currently, the local emergency department had not received reports of casualties.
Japan Meteorological Agency said the earthquake epicenter is located in the waters west of the Ogasawara Islands, the focal depth of about 590 kilometers. Affected by the earthquake, including the distance Ogasawara Islands, including more than 1,000 kilometers of Tokyo, Kanto region and the Northeast region and more clearly felt. Tokyo can feel shaking for about 30 seconds.
According to the Ogasawara Islands residents receive Japanese television telephone interview, said, felt the shaking continued for about 1 minute.
Japan Meteorological Agency said the earthquake will not cause a tsunami.
The earthquake has two main characteristics: the depth of more than 600 km of the great earthquake, which is very rare in the history of seismic observations; epicenter located in the mantle, seismic wave propagation speed, energy decay slows down, the tremendous energy carried by the low-frequency component to spread more far, which makes parts of the country have felt.
Ogasawara Islands (Japanese: Ogasawara Islands, おがさわらしょとう) is an archipelago in the Pacific, Japan, located more than 1,000 kilometers south of Tokyo, administrative division in Tokyo Ogasawara village jurisdiction. Archipelago of over 30 islands, including the famous father Island, Mother Island and Iwo Jima, etc. In addition, 700 kilometers south of Okinotorishima and 1900 kilometers south east of Bird Island also is part of the Ogasawara Islands.
Ogasawara Islands southeast of the island of Honshu, Japan. The case of Tokyo. Bit western Pacific, Izu Islands about 600 km south east, namely latitude 27 ° 45 ', longitude 142 ° 10'. About 1,200 kilometers south of Tokyo. By the more than 30 islands and islets, from north to south, divided island archipelago husband, the father of the island archipelago, the mother island archipelago of three groups. The total area of 71.4 square kilometers. Tertiary volcanic island.
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