He said that the last major earthquake event generated by the movement of the fault was in 1658. It’s not simply in Manila but there can be other big ones in other parts of the Philippines.” (Phivolcs)Īccording to Solidum, studies indicated that the WVF moved four times in the past 1,400 years, with a movement interval measured between 400 to 600 years. In the Philippines, it is often equated to the worst-case earthquake scenario in the greater Metro Manila area.īut he noted that Phivolcs provides many worst-case earthquakes scenarios for different parts of the country. It is a term used to describe damaging and strong earthquake scenarios. The term “big one” is used in many parts of the world. “That is why when we released the potential impact of a magnitude 7.2 earthquake in Metro Manila, our friends from the media called it the ‘big one’ because there can be many people that will die and even significant number of buildings that might be destroyed,” he added. On the other hand, Solidum explained that “worst-case earthquake scenario” describes an earthquake that can bring the most severe impact to a region or locality. “An earthquake scenario is also used as a planning tool so that we understand a potential future earthquake, so that we can plan accordingly as to the possible impacts that these earthquakes can bring,” he added. “An earthquake scenario is an assumed hazard scenario describing the estimated ground shaking, for example the intensity, other potential hazards related to the earthquake, and most importantly the impact that can be caused by these specific earthquake events,” he told reporters in a webinar last week.
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