Answer:

sure

Explanation:

1. What could be the reason for the occurrence of earthquakes in Tulunan according to PHIVOLCS?

According to the Philippine Institute of Volcanology and Seismology (PHIVOLCS), there are several possible reasons for the occurrence of earthquakes in Tulunan. These include:

• The movement of tectonic plates: Tulunan is located in an area where two tectonic plates, the Cotabato and Philippine Sea plates, are colliding. This collision causes the plates to grind against each other, which can build up stress and eventually lead to an earthquake.
• The presence of faults: There are several faults in the area around Tulunan, including the Cotabato Fault and the Midsayap Fault. These faults are weak zones in the Earth's crust where earthquakes are more likely to occur.
• Magmatic activity: Tulunan is located near Mount Matutum, an active volcano. Volcanic eruptions can trigger earthquakes, as the magma moves underground and causes stress on the surrounding rocks.

2. Identify some of these interrelated faults surrounding Tulunan.

Some of the interrelated faults surrounding Tulunan include:

• The Cotabato Fault: This is a major strike-slip fault that runs along the eastern side of Mindanao. It is the longest fault in the Philippines, and it is responsible for many of the earthquakes that occur in Mindanao.
• The Midsayap Fault: This is another major strike-slip fault that runs parallel to the Cotabato Fault. It is located just west of Tulunan.
• The Kabacan Fault: This is a smaller fault that runs northeast of Tulunan. It is not as active as the Cotabato Fault or the Midsayap Fault, but it can still cause earthquakes.

3. What could be the reason why these faults moved?

There are two main reasons why faults can move:

• Stress buildup: When tectonic plates collide or when magma moves underground, it can cause stress to build up in the rocks around the faults. This stress can eventually exceed the strength of the rocks, causing the faults to slip and release energy as an earthquake.
• Erosion: Erosion can also cause faults to move. When rocks are eroded away, it can reduce the amount of pressure holding the rocks on either side of the fault together. This can make the fault more likely to slip.

4. General Santos City is estimated to be 130 km away from Tulunan. But an earthquake was felt in the city. What explains this experience?

Even though General Santos City is 130 km away from Tulunan, it is still possible to feel the earthquake there. This is because seismic waves can travel long distances through the Earth's crust. The strength of the earthquake waves will decrease as they travel away from the epicenter, but they can still be felt for many kilometers.

5. Do all movements of faults cause earthquakes? Explain your answer.

No, not all movements of faults cause earthquakes. Faults can move slowly or quickly, and they can move without releasing any energy. Only when the movement of a fault is sudden and causes stress to be released as energy does an earthquake occur.

6. What is the relationship of fault movements and earthquakes?

Earthquakes are caused by the sudden movement of faults. When tectonic plates collide or when magma moves underground, it can cause stress to build up in the rocks around the faults. This stress can eventually exceed the strength of the rocks, causing the faults to slip and release energy as an earthquake.

7. If you have learned that your house is near the fault, as a student, what are you going to do?

If you have learned that your house is near a fault, there are several things you can do to prepare for an earthquake:

• Create an earthquake preparedness plan: This plan should include what you will do before, during, and after an earthquake.
• Make sure your house is earthquake-resistant: This may involve reinforcing walls, securing furniture, and installing safety features such as earthquake straps.
• Assemble an emergency kit: This kit should include food, water, first aid supplies, and other essential items that you will need in the event of an earthquake.
• Stay informed about earthquakes: Monitor earthquake warnings and advisories from PHIVOLCS and other sources.

By taking these steps, you can help to protect yourself and your family from the effects of an earthquake. HOPE IT HELPS!! - EUN