Geology

Although Singapore isn't home to any Volcanoes, the threat of volcanic fallout is quite large. Singapore is located in a very high threat zone due to Indonesia and the Philippines. This area is quite active due to the Pacific Rim of Fire as well. As said before, there are no Volcanoes in Singapore, but ash can still reach the country with ease. The eruption of Pinatubo in 1991 which was over 2,400km away still reached the country. Unlike tsunamis and earthquakes, volcanoes have a wider reach. Some measures and precautions that need to be taken in event of an eruption are having enough resources, follow official warnings and evacuation orders, and wear potential eye protection. Volcanoes have the potential to affect the whole world, not just the surrounding region. Being prepared and knowing how to act in time of emergency is very important. A super volcano can reach anyone no matter if there is a volcano in that country or not.  https://www.asiaoceania.org/aogs2017/doc/lecturers/SC

Although Singapore does have its share of small earthquakes, the chance of experiencing a large quake is quite small for this country. The reason being is that Singapore is not located by any boundaries. Instead Singapore is located on the inside part of the Eurasian plate rather than the edge. Countries located on the edge of tectonic plates have more of a chance of experiencing larger and more dangerous earthquakes. The West coast of the United States and Japan are just a couple of many countries that are located right on the border of a plate. In result, these countries experiences giant and destructive earthquakes. Singapore is considered a safe zone when it comes to seismic activity. The closest area of danger lies 400km away on the west coast Sumatra. So if there were any reaction, that is where the epicenter is most likely to be.  https://www.iitk.ac.in/nicee/wcee/article/13_129.pdf https://earthobservatory.sg/earth-science-education/earth-science-faqs/risk-and-society/is-singap

 Singapore is located in the Northern Hemisphere of the world and is set on the Eurasian plate, but not near the divergent boundary itself. The Eurasian plate is home to over 4.6 billion people and contains most of Europe and Asia.  In terms of geologic activity, the Eurasian plate holds a steady amount of seismic activity. Although there is plenty of seismic activity on the pacific rim of fire, Singapore isn't in that zone. Meaning that the level of earthquake that is experienced is quite low level.  However, not being on a fault or plate boundary doesn't mean that they do not feel earthquakes. Singapore still gets small earthquakes from time to time. Just not on a massive scale. Countries that are on the Rim of Fire such as Japan, get massive earthquakes due to being on the boundary. Links:  http://eurasiatectonics.weebly.com http://www.weather.gov.sg/learn_seismology/