During the last few days, volcanic activity was recorded in Nevado del Ruíz, seismic movements ... The current activity of Ruiz is associated with the fracturing of a rock inside the volcanic ...
Omayra Sánchez Garzón became trapped under the rubbed of fallen homes following the 1985 eruption of the volcano Nevado del ...
After the eruption of Nevado del Ruiz killed more than 23,000 people in Colombia in 1985, the U.S. Office of Foreign Disaster Assistance asked the U.S. Geological Survey to design a program to ...
In 1927, the Holland Tunnel was opened under the Hudson River, linking New York City and New Jersey. In 1947, development of ...
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