On June 15, the rescue groups earthquake disaster area Gongcheng County Li Yuanshi shift the casualty north Japan with the helicopter. No matter what Xinhua News Agency reporter absorbs

Tokyo at 8:43 on the 14th, Japan’s northeast region, 7.2, the biggest shock of the (Japanese standards) of 6 strong vertical inland earthquakes, the earthquake was named as the “Heisei 20 Iwate, Palace City inland earthquake. ” The earthquake patterns and causes of tectonic earthquake with China similar to Wenchuan, the release of energy and caused more than 6,000 deaths in 1995 Kobe earthquake is. As the evening of 15 8:00, the earthquake has caused nine deaths and 11 missing, nearly 200 people were injured.

After the Kobe earthquake, but because of the slow action by the Japanese government accused the various departments to review and improve the disaster response mechanism. The quake occurred after one minute, Japanese police will set up a “disaster Guard headquarters.” Quake occurred seven minutes after the Prime Minister’s official residence in the crisis management center set up countermeasures room, and sent the letter-chuen, also headed by the Minister for Disaster Management, Government-finding mission to the affected places.

Chun-speed before the emergency system was activated effective

Last October, the Japan Meteorological Agency set up a “quick report earthquake emergency system”, which is the world’s first earthquake early warning systems, seismic instrument measured in a faster spread of the underground earthquake early microseismicity “P wave” (5 to 7 per second. Km), will be automatically projected sharp shock “S-wave” (3 to 4 kilometers per second) the size. If the forecast earthquake of more than five degrees, the Meteorological Agency through television, radio, mobile phones and instant alert system, such as terminal facilities to meet earthquake in four areas over the emergency release.

In April this year, the Miyako Island in Okinawa earthquake and the May earthquake in Ibaraki Prefecture, at this speed system performance, scheduled for late in the earthquake, which suffered critical. But in the earthquake, emergency-speed system to play at a certain effect. Further away from the epicenter of the region, speed was a few seconds earlier than the shock to Shiji Miao. According to reports, Miyagi an electronic equipment in the factory are seismic waves reach the 12 seconds before the emergency forecasting, which promptly closed the use of toxic substances and gas production lines. Chun-area schools is also a quick report received in a timely manner after the emergency evacuation of students to stay away from school safety zone.

But “emergency earthquake quick report system” for the area around the epicenter hard to play a role in early warning. It is reported that the earthquake epicenter from 30 to 50 km within the framework of emergency quick report does not work. Meteorological Agency detected the initial shock wave is 8:43:51, 4 seconds later issued an emergency forecast, but was near the epicenter have started intense shaking.

The collapse of the housing and fewer casualties

The northeastern Japan earthquake shaking level comparable to the Kobe earthquake, but why Kobe earthquake damaged or semi-damaged 250,000 buildings, killed 6,000 people, and the magnitude of the earthquake is only one building collapsed completely destroyed, 11 Semi-damaged building » Japanese seismological experts and building construction is the answer: a small degree of damage to the building one of the main reasons is the result of seismic wave characteristics. According to analysis, the seismic waves sloshing cycle is very short, less than one second, and the general cause enormous damage to the building of the earthquake shaking for about 1.5 seconds about why the second is Japan’s northeastern region of the unique features of the building To. Japan’s northeastern region in order to meet the snow for more than monolithic roof made of the use of tile in the quality of the buildings to light many. In addition, to keep out the cold, the region’s room door, window openings are quite limited, which makes more room of the earthquake. Housing collapse less natural to reduce the personnel casualties. Also, the earthquake was Saturday morning, the attendance officers to work less, have reduced mud-rock flow and landslides caused by roads and bridges casualties. (Tokyo on June 15, / in Japan’s Jun-Ling Pei xinhuanet)

Tags: early warning systems, earthquake disaster, earthquake emergency, earthquake patterns, Japan earthquake, miyako island

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