In Harm's Way: Population and Volcanic Risk
Approximately 2.7 million people in Central America live in the shadow of an active volcano. A new measure of that population risk could help save lives during a volcanic disaster.
John W. Ewert and Christopher J. Harpel
Paths of Destruction: The Hidden Threat at Mount Rainier
The community surrounding Mount Rainier in Washington is taking action to better prepare for giant mudflows that could sweep off the volcano, with or without advance warning.
Lisa M. Pinsker
Geoscientists in the Peace Corps: A Strategic Revisit
Geologists who once served in the Peace Corps reflect on the present state of the foreign volunteer program.
David Hastings

Click here to read Geotimes' ongoing coverage of exploration of the red planet.


April 30
Early volcanic living?
April 22
Travels in Geology: A Midwest glacial retreat
April 16
EPA announces ozone hotspots
April 6
Powerful earthquake strikes Afghanistan
April 1
Travels in Geology: Red Rock Country
March 25
Interior back online
March 24
Mars update: Standing water on planet's surface
March 19
Steady water use

Webextras Archive

News Notes
Russian oil rumbles
Tracks in the Colorado sand
Minerals on the line
Mars once drenched with water
A gem of a model
Iron bullets

Predicting landslides
Hot spring pops up in Paso Robles
Dry craters in Bhuj

A Climate of Your Own
A large climate model is borrowing computing time from more than 47,000 personal computers worldwide.
Tim Palucka


A Celebration of 125 Years
In its anniversary year, the U.S. Geological Survey continues to provide timely information to the public about the world's changing environment.
Charles G. "Chip" Groat

Political Scene
Breaking Down the Barriers: A Two-Part Series, Part I
Lobbying is a powerful tool for getting your message to Congress.
Eloise Kendy and Kevin Vranes

Energy & Resources
New Collaboration in Minerals Research
Now more than ever, it is important that the United States be at the forefront of minerals research, and cooperative research centers could be the key.
Robert J. Kamilli and Mark D. Barton

Geologic Column
The Department You Save May be Your Own, Part I
One by one, geology departments are fighting for their survival.
Lisa Rossbacher and Dallas Rhodes


Past is Prologue: Honoring young geoscientists

Check out this month's Energy Notes!

The Foreign Founder of the Smithsonian
Global Mars maps

On the Web

Table of Contents
Letter from the Editor
Where on Earth?

Taking a trip? Check out Travels in Geology to find geologically significant places to visit.

Main photo: From the slopes Illopango Caldera looking north-northwest, Volcán San Salvador looms over the city of San Salvador, population 1.6 million. The main vent (Boqueron) is the rounded volcano in the middle of the skyline. The more conical-shaped peak to the right-middle of the skyline is El Picacho, a remnant of an older volcano. Photo by James Vallance, U.S. Geological Survey. See related stories on pages 14 and 18. Right top: At the Fossil Trace Golf Course near Denver, Colo., paleontologists discovered several well-preserved mammal tracks from the age of the dinosaurs. Photo courtesy of Fossil Trace Golf Course. See story on page 6.

Coming Soon...
Later this month:
Geologic Column: The Department You Save May Be Your Own (Part I in a two-part series)
May: Water conflicts

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