While not submissive International Atomic Energy Agency (Aiea) reported
Whether there was no damage to the nuclear installations in Japan after an 8.8 magnitude earthquake was recorded off the Kamchatka peninsula in Russia, coastal communities did not take risks and have evacuated on higher grounds or moving more inside.
Alerts were sent a few minutes after the earthquake of Russia, the United Nations Office for Risk Risk of Catastrophe (UNDRR) confirmed. Although the authorities have now downgraded the threat through Japan, because waves of 1.3 meters (4 feet 2 inches) have been recorded, the council is that people remain in shelters until the danger decreases on continuous sea overvoltages.
“It’s very complex; We observe tsunami data in real time, so we need people to stay in the refuge until the end of the tsunami “,” said professor engineer of Tsunami, Professor Fumihiko Imamura of Tohoku University.
Mortal heritage
In the nation of the Asian island, memories are still raw from the earthquake and tsunami of March 11, 2011 which killed more than 18,000 people.
Last year, the magnitude 7.6 Noto Quake left around 500 dead and damaged 150,000 houses.
The disaster also caused a major accident at the Fukushima Daiichi nuclear power plant, forcing tens of thousands of people at home.
Today’s developments occur in the midst of reports that the last earthquake was among the 10 most powerful ever recorded, hence the reason why the authorities so closely monitors its impact.
Until now, alerts have been laid off the west coast of the United States, South America, Chile in Mexico and Papua New Guinea in Vanuatu in the Pacific.
“” An earthquake of magnitude 8.8 is a very large earthquake “,” explained Kamal Kishore, special representative of the Secretary General of the United Nations for the reduction of disaster risks.
“As you go from the eight -to -nine magnitude, or seven to eight, at each stage, the strength of the earthquake increases exponentially. Thus, an earthquake which is eight of magnitude as opposed to seven would be 30 times larger. »»
Faster than a jet line
Talk to Not newS, Mr. Kishore highlighted the enormous distances that tsunamis can cover, picking up an enormous energy which they then throw on the coastal communities.
Their progress can be as fast as a jet of passengers and can be followed by sensors of pressure change in deep sea, or tsunameters, which are connected to surface buoys which relay information in real time to satellites. These data is then modeled by national weather centers, influencing if alerts are issued.
“It is a real threat because tsunamis travel very quickly from one coast to another,” continued Mr. Kishore. “The 2004 Indian Ocean Tsunami was one of the most devastating of our memory, which has traveled from the Indonesia coast to the Sri-Lankan coast in just over an hour.”
Lessons learned
In addition to the coordination role of the UNDRR in the global early alert system, other United Nations entities also closely involved include the world meteorological organization (Wmo) and the intergovernmental oceanographic commission of the United Nations Education, Science and Culture Agency (UNESCO-IOC).
The role of the IOC is essential to ensure that countries that use tsunami monitoring instrumentation follow the same standard.
These efforts comply withThe first warnings for allInitiative to ensure that everyone on Earth is protected against weather events, water or climate thanks to saved early alert systems.
Today, one in three people – and mainly in the least developed countries and the development states of small islands – does not have access to adequate multiple early alert systems.
“Tsunamis prevention really highlights how important it is to have a multilateral action” such as data sharing to execute algorithms behind wave modeling systems, insisted the UN Kishore.
“There are countries separated by thousands of kilometers of ocean, but they are affected by the same danger,” he continued.
“If you do not share information on the observation of these dangers, not only where they occurred, but on what is happening in the intermediate places of the ocean … We will not be able to warn our citizens.”
Originally published at Almouwatin.com
