Mount Pinatubo Eruption Impact Assessment

The 1991 eruption of Mount Pinatubo in the Philippines was the second largest volcanic eruption of the 20th century. It had significant local and global impacts, including environmental damage, human casualties, and economic losses. The eruption was preceded by seismic activity and magma movement, leading to a massive explosion on June 15, 1991. The eruption released millions of tons of sulfur dioxide, affecting global temperatures. Despite the devastation, effective evacuation efforts saved many lives. The eruption's aftermath included social and economic challenges, but it also led to successful hazard mitigation strategies. Today, Mount Pinatubo is a popular tourist destination.

What type of plate boundary is Mount Pinatubo located on?

• Convergent boundary

• Divergent boundary

• Transform boundary

• Passive margin

What significant event occurred on July 16, 1990, near Mount Pinatubo?

• A tsunami

• A volcanic eruption

• A magnitude 7.8 earthquake

• A typhoon

On which date did Mount Pinatubo's major eruption occur?

• July 16, 1991

• June 7, 1991

• June 12, 1991

• June 15, 1991

How much sulfur dioxide was released into the stratosphere during the major eruption?

• 30 million tons

• 40 million tons

• 20 million tons

• 10 million tons

What was the average global temperature decrease caused by the eruption?

• 0.6 to 0.7 degrees Celsius

• 0.1 to 0.2 degrees Celsius

• 0.2 to 0.3 degrees Celsius

• 0.4 to 0.5 degrees Celsius

What natural feature formed in the crater of Mount Pinatubo after the eruption?

• A lava dome

• A caldera lake

• A geyser

• A new volcano

Approximately how many people were left homeless due to the eruption?

• 300,000

• 200,000

• 100,000

• 50,000

What was the estimated economic loss caused by the eruption by the year 2000?

• 700 million US dollars

• 500 million US dollars

• 1.5 billion US dollars

• 1 billion US dollars

Which natural disaster exacerbated the impact of the eruption?

• Cyclone Nargis

• Hurricane Katrina

• Tsunami in the Indian Ocean

• Typhoon Yunya

What is Mount Pinatubo known for today?

• A site for scientific research

• A popular tourist attraction

• A restricted military area

• An active mining site