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by Jose Lozano“We do not inherit the Earth from our ancestors: we borrow it from our children.” Native American proverb… My position at the Environmental Protection Agency allows me to observe first-hand environmental hazards and their impact on public health. I love the fact that what I do…
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…
Continuous real-time water quality information is at http://water.usgs.gov/waterwatch/wqwatch/ . These data are limited to measurable characteristics such as temperature, turbidity, specific conductance (salinity), dissolved oxygen, and pH (acidity). WaterQualityWatch is a USGS web site that…
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…
It was an earthquake drill based on a potential magnitude 7.8 earthquake on the southern San Andreas Fault. At 10 a.m. on November 13, millions of southern Californians will drop to the ground, take cover under a table or desk, and hold on. It's not a matter of if an earthquake of this size will…
Historical USGS topographic maps are important map resources that are not readily available. Therefore, the USGS has begun a project to convert all these historical printed topographic quadrangles to digital formats (initially GeoPDF). Learn more at http://nationalmap.gov/historical/ . …
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…
Go to the website http://mine-drainage.usgs.gov ' USGS Mine Drainage Activities
Yes, this information is true. The report was released in April 2008 and can be found online at http://pubs.usgs.gov/fs/2008/3021/ . Additionally, the USGS has decided to update its 2008 assessment of the Bakken Formation, with the effort beginning in October 2011 at the start of the 2012 fiscal…
Earthquakes occur on faults - strike-slip earthquakes occur on strike-slip faults , normal earthquakes occur on normal faults , and thrust earthquakes occur on thrust or reverse faults. When an earthquake occurs on one of these faults, the rock on one side of the fault slips with respect to 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…
YES. Visit our Digital Geospatial Data Page or call 1-888-ASK-USGS for our information package on digital cartographic data.