GLG112 Section: Name: Part 2: Examining Lahar Hazards (14 pts) Examine the topog
ID: 118312 • Letter: G
Question
GLG112 Section: Name: Part 2: Examining Lahar Hazards (14 pts) Examine the topographic map of the region around Nevado del Ruiz (page 4), and answer the following questions 1. How far away is the town of Armero from the summit of Nevado del Ruiz (i.e. the location of the eruption)? Measure the direct distance from the summit to Armero (there are 1.6 kilometers in every mile). kilometers miles 2. The lahar moved quickly through steep-walled canyons and gullies surrounding the volcano. At an average speed of 60 km/hr (~37 mi/hr), approximately how long did it take to reach Armero? Assume the lahar originated at the peak of the volcano. Show your work. 3. Lahars, like water, will always flow downhill following the steepest pathways. Draw the likely pathway of the lahar that destroyed Armero. Keep in mind that the lahar originated from the volcano summit and traveled into the town. Be NEAT and PRECISE 4. The Nevado del Ruiz lahar reached approximate heights of 30 m when contained within the river valley. Was the town of Libano also hit by the lahar? YES Would you expect the lahar to be the same height within the river valley as on NO 5. the river delta (where Armero was built)? YES NO Why or why not? 6. What monitoring techniques (that exists today) could be used to prevent any future tragedies related to lahars at Nevado del Ruiz? List at least twoExplanation / Answer
SOLUTION:1.
Nevado del Ruiz is a glacier-covered volcano in Colombia which erupted on November 13, 1985, which led to Armero tragedy killing almost 23,000 people. The direct distance between the Armero and the peak of the volcano was 46.55 km (28.93 mi). The elevation of the peak is 5,311 m. The volcano continues to be a threat today and about 500,000 people can be at risk.
a. 46.55 kilometers
b. 28.93 miles
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.