THE NEVADO DEL RUIZ...

A volcano project done by Lindsey L. Robinson in 1st period science.

4/6/2014

WHAT HAPPENED WITH NEVADO DEL RUIZ

The first known eruption, in 1595, was seen by explorers. It killed 25,000 people. The Nevada del Ruiz didn’t erupt for many years until 1845. after the eruption of 1845 there was a 140 year gap between eruptions. During this 140 years of no eruptions, people forgot about what happened in the eruptions in 1595 and 1845, and built houses next to the volcano. The last eruption to happen was in 1985, which led to a disaster. An entire town next to the active volcano and no announcement came that it could erupt. Scientists presume that there will be more eruptions in the future, but until then, scientists will take warnings much more seriously. At least 51,000 people died because of either a colossal mud slide, lahars, inhaling ash, or drinking contaminated water[contaminated by ash & mud].

WHERE & WHEN...• Where

The Nevado del Ruiz is a volcano in Columbia, South America.

• When The Nevado del Ruiz erupted in 1595, 1845, and 1985. The eruption in 1595 was the most colossal of the three eruptions.

[ colossal: big, giant, huge, extravagant ]

DAMAGE

laharsA destructive mudflow on the slopes of a volcano.

Lahars destroyed towns that forgot about the earlier massive destruction of the Nevado del Ruiz and built on it anyway.

ashAsh covered everything from people to places. People, to protect themselves from inhaling the ash, wore ash masks

people25,000 people died in the land slide.26,000 people died during a later eruption. People : children, adults, grandparents, got covered in mud and ash. Nevado del Ruiz always made a huge mess with loss of money and loss of population!

ABOUT NEVADO DEL RUIZ

10 facts1. Part of Andes Mnt. Range

2. Overshadowed the town of Amero

3. Inside the Ring of Fire

4. All eruptions were small

5. Its lahars killed 70% of Amero

6. The region was remote

7. It was asleep for 140 years after 1845

8. More eruptions are predicted

9. 5,389 m., 17,784 ft.

10.Its biggest eruption was in 1595

What kindThe Nevado del Ruiz is a stratovolcano. A stratovolcano is also called a composite volcano. It has different layers of pumice, hard lava, and volcanic ash.

Richter scale/plate

s1. Plates

Nevado del Ruiz is on the South American plate. The plates surrounding it are the Cocos, Nazca, and Caribbean.

2. Richter scale

The Nevado del Ruiz has never gotten above 1.4 on the Richter scale. That means that all its eruptions were relatively small, but they were very effective.

THANKS FOR WATCHING!

By: Lindsey L. Robinson