1. Fill in the table using the formula provided:
- Batangas: Distance of epicenter from the station (km) = 44.8 * 8 = 358.4 km; Computed distance on the map (cm) = 358.4 / 200 * 1.1 = 1.97 cm
- Puerto Princesa: Distance of epicenter from the station (km) = 30 * 8 = 240 km; Computed distance on the map (cm) = 240 / 200 * 1.1 = 1.32 cm
- Davao: Distance of epicenter from the station (km) = 38 * 8 = 304 km; Computed distance on the map (cm) = 304 / 200 * 1.1 = 1.67 cm
2. On the map below, use the computed distance from each station to locate the epicenter. Start measuring the distance from Batangas (orange dot) and form a circle using a drawing compass. If you don't have a compass, you can draw a circle using a string/pin. Watch here for a hack on how to draw a circle without compass: https://www.youtube.com/watch?v=UJcLkA3dXh8
3. Do the same for Puerto Princesa and Davao.
Q1: Where is the epicenter of the hypothetical earthquake? (place where 3 circles intersect)
- The epicenter is located at the intersection point of the three circles drawn from Batangas, Puerto Princesa, and Davao, which is approximately near the central part of the Philippines, likely in the vicinity of the Visayas region or slightly north of it, based on the distances and map scale.
Parent Tip: Review the logic above to help your child master the concept of earthquake epicenter worksheet.
