 Malaysia is largely seismically stable with little modern history of volcanic activity, being situated entirely on the Sunda tectonic plate, between two major boundaries of the Australian Plate and Eurasian Plate in the west of Peninsular Malaysia, and the Philippine Sea Plate and Eurasian Plate at Bornean Malaysia.Peninsular Malaysia is more accustomed to only light tremors caused by earthquakes along the Sumatran islands of Indonesia generated predominantly by the Great Sumatran fault and Sunda megathrust.However, a pair of rare earthquakes that did not originate in Sumatra were felt in much of Peninsula Malaysia and Singapore on 31 January 1922 and 7 February 1922.