Earthquakes and Seismology

What is the study of earthquakes and seismic waves called?

• Volcanology

• Seismology

• Geology

• Meteorology

Who is a scientist that studies earthquakes and seismic waves?

• Geologist

• Seismologist

• Volcanologist

• Meteorologist

What is the point inside the Earth where an earthquake starts called?

• Epicenter

• Hypocenter (Focus)

• Crust

• Mantle

What instrument records earthquakes?

• Accelerometer

• Barometer

• Seismograph

• Thermometer

What instrument measures ground acceleration during an earthquake?

• Seismometer

• Accelerograph

• Barometer

• Hygrometer

Where do earthquakes typically originate?

• Ocean basins

• Tectonic plate boundaries

• River valleys

• Mountain ranges

What type of earthquake is produced by the movement of magma?

• Tectonic earthquake

• Volcanic earthquake

• Induced earthquake

• Aftershock

How is the strength of an earthquake measured?

• Only by magnitude

• Only by intensity

• By both magnitude and intensity

• By depth and duration

What is the term for the point on the Earth's surface directly above the focus of an earthquake?

• Hypocenter

• Epicenter

• Fault line

• Rift

How many seismic monitoring stations does PHIVOLCS operate in the Philippines as of December 2020?

• 50

• 75

• 108

• 200