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Ocean Observing Systems OOS, Uncategorized, Underwater Acoustics and Sonar

Ocean Observing Systems (OOS) and March 11, 2011 Tsunami Warnings

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Ocean Observing Systems (OOS) have many sensor to detect earthquakes and tsunamis.

Japan’s most powerful earthquake since records began has struck the north-east coast, triggering a massive tsunami. A massive 8.9 magnitude earthquake hit the Pacific Ocean nearby Northeastern Japan at around 2:46pm on March 11 (JST) causing damage with blackouts, fire and tsunami.

Cars, ships and buildings were swept away by a wall of water after the 8.9-magnitude tremor, which struck about 400km (250 miles) north-east of Tokyo.

A state of emergency has been declared at a nuclear power plant, where pressure has exceeded normal levels.

The following videos provide good information.
http://www.youtube.com/user/NOAAPMEL?feature=mhum#p/c/3BDBAAAA7D4EB2DA/0/2mKbFORiDzg

Ocean Observing Systems OOS, Underwater Acoustics and Sonar

Ocean Observing Systems (OOS) and Tsunami Warnings

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Ocean Observing Systems (OOS) have many sensors. One function is to detect earthquales using seismometers and hydrophones, and tsunamis using bottom pressure recorders.
A massive 8.9 magnitude earthquake hit the Pacific Ocean nearby Northeastern Japan at around 2:46pm on March 11 (JST) causing damage with blackouts, fire and tsunami.
These videos give some background information.

http://www.youtube.com/user/NOAAPMEL?feature=mhum#p/c/0/2mKbFORiDzg

http://www.bbc.co.uk/news/world-asia-pacific-12709598