Mount St Helens: The Awakening Volcano

Mount St Helens, known for its catastrophic 1980 eruption, has shown signs of awakening. The eruption caused massive destruction, but the area has seen a surprising ecological recovery. Recent volcanic activity has been observed, raising questions about future eruptions. Scientists continue to study the volcano to better understand its behavior and predict future events.

What was the main challenge scientists faced after the initial eruption of Mount St Helens?

• Understanding the ecological impact

• Predicting future eruptions

• Measuring the height of the lava dome

• Identifying the species of plants affected

What was the magnitude of the earthquake that triggered the 1980 eruption of Mount St Helens?

• 5.1

• 7.2

• 6.0

• 4.5

What was the main cause of the explosive force in the 1980 eruption?

• High temperature of the lava

• Large amount of gas in the magma

• Presence of water in the crater

• Sudden tectonic movement

Which animal played a significant role in the ecological recovery of Mount St Helens?

• Bald eagle

• Northern pocket gopher

• Prairie dog

• Mountain lion

What was the surprising discovery in Spirit Lake after the eruption?

• Formation of new islands

• Increased water temperature

• Microscopic plants

• New species of fish

What role did the prairie lupin play in the recovery of Mount St Helens?

• It prevented soil erosion

• It enriched the soil with nitrogen

• It attracted pollinators

• It provided shelter for animals

What unique geological feature was observed during the 2004 activity at Mount St Helens?

• Lava tubes

• Lava spines

• Geysers

• Caldera formation

What is the primary factor that determines the nature of a volcanic eruption?

• The amount of gas in the magma

• The temperature of the lava

• The size of the volcano

• The altitude of the eruption

How often does Mount St Helens typically have a major eruption?

• Every 3000 years

• Every 2000 years

• Every 1000 years

• Every 500 years

What is the main question scientists are trying to answer about Mount St Helens' future eruptions?

• When will the next eruption occur?

• What will be the height of the next lava dome?

• What will be the temperature of the lava?

• How many species will be affected?