Infrasound Monitoring System

The infrasound monitoring system employed by the Earth Observatory of Singapore (EOS) was first used to monitor volcanic eruptions in Indonesia. This monitoring system detects low-frequency sound waves, and the data collected provides information on the location and explosivity of the eruption, allowing our scientists to determine the impact of volcanic ash on air traffic in and around Singapore.

Data from the infrasound monitoring network contributes to the tsunami early warning system, as it can detect  sound waves from the tsunami source well before the tsunami waves reach the coastline.

EOS is currently developing its capacity of infrasound monitoring in Singapore. The first part of its infrasound system was installed in Singapore in August, 2013, to monitor distant volcanic eruptions. The station caught the infrasound signal from the Kelut volcano eruption in February, 2014.

This system, which can detect very low frequency sound waves in the air, provides very useful information for the early warning of distant volcanic eruptions. Data collected by the Infrasound system provides independent and rapid diagnosis of the location, and the explosivity of an eruption event before volcanic ash may influence air traffic around Singapore.

This system also has potential applications for geothermal exploration and the monitoring of mining activities.

EOS scientists are now working closely with other international research institutes on the infrasound monitoring systems. Given our close relationships with infrasound experts around the world, we have the ability to install and operate the Infrasound system. EOS also has the capacity to process and analyse the data.

Click on each image to view them in the gallery below.