G12 DRRR Earthquake Hazards

What is the primary purpose of a seismometer?

• A) To measure the strength of a tsunami.

• B) To detect volcanic eruptions.

• C) To monitor changes in atmospheric pressure.

• D) To record and measure seismic waves generated by earthquakes.

Which statement best describes hazards?

• A) Hazards are human-made events that affect a specific area.

• B) Hazards are natural phenomena that impact individuals only.

• C) Hazards are natural phenomena that might impact an area or a region.

• D) Hazards are unpredictable events with no discernible pattern.

Which initiative was created by the MMDA to address concerns highlighted in the MMEIRS study?

• A) Operation Reforest

• B) Project Oasis

• C) OPLAN Metro YAKAL

• D) Environmental Sustainability Program

Based on the map shown, what geologic feature surrounds the Philippines?

• A) Caves

• B) Volcanic islands

• C) Subduction zones

• D) Tectonic plates

Which event occurred as a consequence of the 1999 Chi-Chi earthquake in Taiwan?

• A) A volcanic eruption near the epicenter.

• B) A major landslide blocking a river.

• C) The collapse of the Bei-Fung Bridge.

• D) A tsunami hitting the coastal areas.

What defines the epicenter of an earthquake?

• A) The deepest point of the earthquake's origin.

• B) The point on the Earth's surface directly below the focus.

• C) The point on the Earth's surface directly above the focus.

• D) The area of maximum destruction caused by the earthquake.

Which of the following does not cause a large displacement of water in the ocean?

• Volcanic eruptions

• Submarine landslide

• Earthquakes

• Meteorite impact

• None of the above

Which scenario describes a potential consequence of a landslide hitting a river?

• A) Formation of a new lake in the affected area.

• B) Decrease in water levels downstream due to blockage.

• C) Swelling of the river water that causes flooding.

• D) Rapid evaporation of water due to increased heat from friction.

What observation could indicate the possibility of a tsunami event?

• A) A sudden rise in sea level

• B) Strong winds blowing offshore

• C) Receding coastline by 500 to 1000 meters

• D) Increased activity of marine life

Which statement regarding the influence of rock or soil type on earthquake magnitude is accurate?

• A) The type of rock or soil has no effect on the magnitude of an earthquake.

• B) Certain types of rock or soil can amplify the magnitude of an earthquake.

• C) Earthquake magnitude is solely determined by the depth of the earthquake's focus.

• D) Different types of rock or soil can completely prevent earthquakes from occurring.