Earth Observatory of Singapore

Studies focused on tectonic activity along the Sumatran Fault zone (SFZ), which traverses the entire 1900-km length of Sumatra, are still lacking. The SFZ is segmented and the slip rate varies for each segment, but rates are poorly known, particularly at the southern end of the SFZ.

SuGAr has been observing surface deformation in Sumatra since 2002. The long time series are now a treasure trove of interesting signals and questions, and are providing us with a great opportunity to examine changes in time and space in deformation patterns related to the Sumatra subduction zone. In the last few years we have installed a large number of new stations, all with various scientific questions in mind. 

We propose to install 30 broadband seismometers to cover the seismic gap on the Sagaing fault and the neighbouring region, which is one of the most populated areas in Myanmar. The seismic data will be used to better understand the seismotectonic setting in the region. The proposed works include waveform modelling for earthquake focal mechanism and crustal and slab velocity structure, and determining micro-seismicity location, locking depth and the slip rate on the fault. These will be key for...

Barbot's team is developing geophysical marine robots to probe the deformation of the seafloor. The end goal is to extend geodetic measurements offshore to better understand earthquakes, tectonic processes and tsunami hazards.