Tuesday, December 31, 2013

Earthquakes Japan 2013

This is an overview of all the earthquakes in Japan in 2013, sorted per magnitude and shindo (震度, shaking intensity). This data was generated by using the Japan Meteorological Agency database.



The most earthquakes in a single category were shindo 1 and magnitude 3-3.9, still roughly double the amount of 2010.
Shindo 1 earthquakes ranged from magnitude 1 to 7.9.
Shindo 2 earthquakes ranged from magnitude 2 to 6.9.
Shindo 3 earthquakes ranged from magnitude 2 to 8.9 (Sea of Okhotsk, North of Hokkaido).
Shindo 4 earthquakes ranged from magnitude 3 to 7.9.
Shindo 5- earthquakes ranged from magnitude 4 to 5.9.
Shindo 5+ earthquakes ranged from magnitude 5 to 6.9.
The Shindo 6- earthquake fell into magnitude 6 to 6.9.

Below the frequency distribution of earthquakes during the year is shown:


Comparing the JMA statistics with the data from their database, all earthquakes were found in the database.

JMA:
Intensity 震度7 震度6強 震度6弱 震度5強 震度5弱 震度4 震度3 震度2 震度1 Total
2013 0 0 1 6 5 52 187 613 1523 2387

Database:
Intensity 震度7 震度6強 震度6弱 震度5強 震度5弱 震度4 震度3 震度2 震度1 Total
2013 0 0 1 6 5 52 187 613 1523 2387

Monday, December 30, 2013

News in Japan - December

GEJET
Typhoons spread Fukushima fallout, study warns
TEPCO wins rare praise from Nuclear Reform Monitoring Committee
Gov't proposes extra measures to deal with Fukushima water
Fukushima remains very complex despite progress: IAEA
Slippery clay intensified 2011 tsunami-quake, scientists say
Fukushima water tanks: leaky and built with illegal labor
Fukushima contractor denies claims its staff concealed work terms
Japan lacks decommissioning experts for Fukushima

Japan
Japanese college students struggle to answer basic astronomy questions
Top court says transsexual is father of IVF baby
Irregular working conditions grinding women down
One fourth of jr high school girls don't exercise
80% of 'black companies' guilty of illegal business practices, survey finds
Japan's Daycare Shortage Hits Women in Work

Netherlands
Netherlands reclaims aid (Dutch)
Quays in Rotterdam are flooded (Dutch) Alerting trucks are driving through the streets to warn the inhabitants. The water is knee high in several streets along the New Meuse. Passing transportation ships are requested to drop their speeds to prevent waves.

USA
New York train derailment: Passengers 'impaled'
Sea-Level Rise to Drive Coastal Flooding, Regardless of Change in Cyclone Activity A rise in sea level of 1 meter for the New York City region would result in the present-day 100-year flood events occurring every 3 to 20 years.

Other hazards
Humans Threaten Wetlands' Ability to Keep Pace With Sea-Level Rise

Vulnerable people

Monday, December 23, 2013

China International Water Law

The website of China International Water Law, by the Xiamen International Water Law Research Group at Xiamen University has a wealth of information on Chinese water laws as well as full access to publications on the topic of transboundary water management. 

Xiamen is located on the coast in Fujian province, near Taiwan. Did you know that China has more than 50 transboundary watercourses shared by its 31 provinces and regions and 14 neighboring countries? Find out more about Chinese water policies on the website


Friday, December 13, 2013

R&D seminar Post Typhoon Yolanda (Haiyan, 1330) : Philippine DRRM against water related disaster

Today we had a presentation by Hayato Nakamura, who is Project Formulation Advisor at the JICA Philippine Office. He showed many pictures of the destruction of the typhoon last November 8-9, and explained different response measures. The fact that the storm was approaching was not widely known among the people. One reason was that the wide spread SMS network had gone offline.

One issue increasing vulnerability is the lack of enforcement of building codes. While there are criteria for safely constructing concrete buildings, it was found that many of the destroyed buildings contained shore sand and seashells, which could not withstand the storm. In general, reinforced concrete buildings were found to be the most efficient in withstanding the storm.

Another issue is people's concept of the river area. Many people have no idea of where the river area exactly is and as a consequence live inside the area. One photo even showed a city hall built inside the river area. People usually manage floods by evacuating and surviving on the second floor of their buildings, if there is one, and if the flood stays below it. During this typhoon, an older woman explained she didn't dare go outside when her house began to flood, as she was afraid the fierce winds would have killed her. Luckily she had an air pocket between herself and the ceiling so she could survive. For her it was a matter of debating how she would die, outside in the storm or inside drowning in her house.

Given that many reports (UN, ADB, HFA) have named the Philippines as a great example of successful disaster risk reduction and preparedness, in combination with the damages of this disaster, I asked him if he thought the Philippines could still be described as a success. He responded very positively, and contrasted the new Philippine disaster act  from 2010 to the Japanese bast from 1961. Many things have been changed drastically, such as the increase in DRR (5% of the local government budget) and the creation of DRM plans. So naturally Japan has had more time to enact their law, and Philippines is still in the process.

Wednesday, December 4, 2013

New map of Japan by GSI

The Geographical Survey Institute has released a new online interactive map of Japan.

What's interactive about it? Outside of the regular maps with volcanoes and historical pictures, they have added many layers of additional information. For instance, you can select the category 'disaster prevention' and view the crustal deformation from the GEJET per prefecture. It shows Tsukuba's ground surface subsided about 10 cm.
Areas in Aomori, Akita and Yamagata were raised about 3-10 cm, whereas the entire East coast from Iwate to Chiba experienced some amount of subsidence. The highest figure is -114 cm, on the coast line Northeast of Sendai city. All in all, a great map for scientific reference.