Earth Observatory Blog

Submitted on 15 Aug 2018 by:

A one-metre rise in sea level could dramatically increase the frequency of flooding up to almost five times for tsunami-safe Macau, in a new study led by scientists from Nanyang Technological University, Singapore (NTU Singapore). 

The team of scientists from NTU’s Earth Observatory of Singapore (EOS) and Asian School of the Environment (ASE), used computer modelling, and initially showed that Macau, a densely populated coastal city in China, is relatively safe from tsunamis as it requires an earthquake larger than 8.8-magnitude to cause widespread tsunami floods.

However, with just a sea level rise of 0.5 metres, the tsunami-induced flood risk increases to up to 2.4 times and with a 1 metre rise, up to 4.7 times. 

The increased flooding frequency was...

Submitted on 11 May 2018 by:

On 3 September 2017, the Democratic People’s Republic of Korea (North Korea) conducted its sixth underground nuclear test at the Punggye-ri test site. In collaboration with scientists from Germany, USA, and China, my colleagues from the Earth Observatory of Singapore (EOS) and I published our findings in Science on 11 May 2018, revealing the complex physical processes associated with the nuclear test.

We found that the top of the mountain experienced a rise, collapse, and compaction at different time scales after the explosion. The explosive yield from the nuclear detonation with seismic and geodetic modeling was between 120-304 kilotons of TNT, which is more than 10 times the power...

Submitted on 21 Dec 2017 by:

Dear EOS Community,

As the year comes to a close, I’d like to thank you for your continued interest and support in the research, initiatives and programs being conducted here at the Earth Observatory. Over the past year, your increased engagement has helped us to better understand your interests in geohazard research and provide content to meet them. From publications to awards and new blog series, here is a look back on a few highlights from 2017.

As data from the Mentawai Earthquake Gap—Tsunami Earthquake Risk Assessment (MEGA-TERA) marine expedition carried out in 2015 was being analysed and while new data from the Marine Investigation of the Rupture Anatomy of the 2012 Great Earthquake (MIRAGE) expedition was being collected in 2016, we were already planning a third...

Pages