News

On Saturday, May 17, 1997, representatives of the U.S. Forest Service, the U.S. Geological Survey and the State of Washington will gather on a ridge on the north slope of Mount St. Helens to dedicate the "Johnston Ridge Observatory of the Mount St. Helens National Volcanic Monument."

Observe sidescan sonar images of the sea floor being collected and processed by U.S. Geological Survey oceanographer Dr. William Schwab and colleagues on board the "Diane G," tomorrow (Thurs., May 15, 1997).

Even as the floodwaters of the Red River of the North continue to recede, and residents begin to deal with the aftermath of the unprecedented nature of this rare flood, the U.S. Geological Survey, in cooperation with several bi-state agencies, is making additional streamflow and water-quality measurements to assess the overall impact of the flood.

An earthquake with a preliminary magnitude of 6.7 occurred off the coast of Mexico, Thurs., May 1, 1997, according to the U.S. Geological Survey.

Levels of fish sex hormones -- estrogen and testosterone -- may be affected by contaminants in some U.S. streams, according to a report released today by the U.S. Geological Survey.

The lower San Joaquin River and south delta will take on a slight blush Monday afternoon, April 28, as scientists from the U.S. Geological Survey tint the river with a dye tracer. The non-toxic red dye, Rhodamine WT, will help USGS scientists track the movements of fish in the river and determine the effects of a fish barrier at the head of the Old River near Tracy.

As the unprecedented floodwaters of the Red River slowly begin to subside in Grand Forks, N. Dak., crews from the U.S. Geological Survey are tracking the northward movement of the water, taking measurements to help improve forecasts of the flood for evacuations upstream.

Floods were not the only natural hazard on the world stage in recent days with three large earthquakes occurring within hours of each other, according to the U.S. Geological Survey.

The current floods in North Dakota far exceed previous floods that occurred in 1950, 1969, 1978, 1979 and 1996, according to the U.S. Geological Survey.

An earthquake with a preliminary magnitude of 6.3 occurred about 55 miles north of Guam in the Pacific Ocean, Wed., April 23, 1997, according to the U.S. Geological Survey.

The flow of the Red River officially broke the 100-year-old record on Thurs. April 17, 1997, according to the U.S. Geological Survey.