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By Administrator Lisa P. JacksonHispanic Heritage Month is a time to reflect on the important role the environment plays in every community, and the important role every community should play in protecting our environment. The EPA has taken considerable steps to make sure all Americans have a voice…
The water cycle, also known as the hydrologic cycle, describes the continuous movement of water on, above, and below the surface of the Earth. For a summary go to water cycle . Learn more at http://ga.water.usgs.gov/edu/watercycle.html .
Floods are a dangerous hazard throughout the world, and most people underestimate the power of flood waters. On average, in the United States, about 165 people are killed and about $2 billion of damage occurs each year. Several types of data can be collected to assist hydrologists predict when and…
No. Probabilities are estimated from the rate of aftershocks and these are sometimes confused with the prediction of a particular event.
We are certain that the Earth's climate is changing because of the trends that we see in the instrumented climate record and the changes that have been observed in physical and biological systems. The instrumental record of climate change is derived from thousands of temperature and…
Oil has been produced from the Bakken Formation since the 1950’s. However, drilling has increased significantly in the last several years. The USGS does not maintain statistics on oil production, however, this information can be obtained from publicly available sources like the North Dakota…
In April 2008, when the USGS released the assessment of undiscovered, technically recoverable oil and gas resources of the Bakken Formation, there was a press release http://www.usgs.gov/newsroom/article.asp?ID=1911 which was distributed to the media. The individual media organizations make the…
During the three giant caldera-forming eruptions that occurred between 2.1 million and 640,000 years ago, tiny particles of volcanic debris ( volcanic ash ) covered much of the western half of North America, likely a third of a meter deep several hundred kilometers from Yellowstone and several…
Lava and Lava Flows The temperature of basalt lava at Kilauea reaches 1,160 degrees Celsius (2,120 degrees Fahrenheit). -- USGS/VHP Website, 1998 The tube system (lava tubes) of episode 53 (Pu'u O'o eruption, Hawaii) carried lava for 10 kilometers (6 miles) from the vent to the sea. So…
Most Destructive Earthquakes in the World .
The USGS Publications Warehouse ( http://pubs.usgs.gov/ ) has released a new interface and a variety of new content and features. The new version of this tool now includes citations for USGS-authored content including journal articles, books, book chapters, proceedings, and other research…
Water levels in wells are constantly changing both in the short term and over the long term. Some wells even have a seasonal change. In the short term, water levels can be lowered just by pumping water out of the well for use. Also, a well may be pumped so much as to cause the water level in nearby…