The activity of Ili Lewotolok (or Lewotolo) volcano ramped up on 29 November 2020 with a series of eruptions. The largest of these eruptions occurred at about 9:45am local/Singapore time (1:45am UTC) and sent a gas and ash plume more than 5 kilometres (km) into the atmosphere. This powerful eruption was recorded by the infrasound network from the Earth Observatory of Singapore (EOS).
Earthquakes, typhoons, volcanic eruptions and floods are some of the hazards we live with. But we can lessen the impacts of these hazards on our lives and livelihoods by following Disaster Risk Reduction (DRR) strategies. These strategies help societies prepare and respond to hazards, and therefore reduce the associated risks. DRR can happen at all levels, from individual actions to international agreements.
Typhoon Goni (Rolly in the Philippines) caused more than 20 fatalities in the Philippines earlier this month. Just a few days later, Typhoon Vamco (Ulysses) struck the Philippines again, then Vietnam on the other side of the South China Sea. “It is fairly common for more than one storm to occur in an ocean basin at the same time,” said Associate Professor Adam Switzer, a Principal Investigator at the Earth Observatory of Singapore.
In conversation with Fangyi Tan, PhD student, Sea Level Research team at the Earth Observatory of Singapore
When a volcano erupts in the darkness of night, or when it is blanketed by clouds, determining even the most basic information about the plume can be very difficult. Particularly for air safety, information like the time the eruption started, the height of the plume, and the eruption duration are crucial for determining what air spaces will be impacted.
In conversation with Assistant Professor Aron Meltzner, Principal Investigator at the Earth Observatory of Singapore
Sea-level rise is a hot topic today in Singapore. Prime Minister Lee Hsien Loong, in his 2019 National Day Rally Speech, spoke at length about how vulnerable our island state is to 21st-century projections. However, sea-level rise is not a recent phenomenon and neither are the extreme impacts it has had on Singapore’s landscape.
In conversation with Professor Benjamin Horton, Director of the Earth Observatory of Singapore
A commentary by Professor Benjamin Horton (Earth Observatory of Singapore) and Emeritus Professor Perter Horton (University of Sheffield), published online on 7 July 2020 in One Earth, looks at how the current COVID-19 pandemic and the climate crisis are signs of the unsustainability of human society and the decreasing resilience of our ailing planet.
On 22 December back in 2018, Indonesia’s Anak Krakatau volcano erupted. The collapse of its flank triggered a tsunami that killed more than 400 and injured at least 30,000 people.
To understand how the events of that day unfolded with such catastrophic effect, an international research team led by Research Associate Anna Perttu from the Earth Observatory of Singapore (EOS) turned to the data collected from monitoring stations from all around the region, official reports, as well as satellite and visual observations.