No need to blow your top!

Volcanoes are complex natural systems, and understanding a volcano’s behaviors requires the attention of specialists from many science disciplines.  It demands a combination of current knowledge about magma systems, tectonic plate motion, volcano deformationearthquakes, gases, chemistry, volcano histories, processes, and hazards.



Learn More: 

Volcano FAQs

U.S. Volcanoes and Current Activity Alerts

Current Alerts for U.S. Volcanoes

Education = Preparedness, Safety, and Resiliency

This Dynamic Planet

This Dynamic Planet: A Teaching Companion

This Dynamic Earth: the Story of Plate Tectonics

Floods give new meaning to “car pool lane”.

Unfortunately, winter's 2015/2016 persistent precipitation - accompanied by strong winds and tornadoes in some areas - blanketed two large swaths from Texas to Ohio, and Mississippi to North Carolina. As early flash-flooding began to recede, the nation began 2016 with major floods in the Missouri, Ohio, and Mississippi River basins, setting new winter flood records.


Learn More:

Floods and Droughts FAQs

Flood Inundation Mapper

Water alert


Current Water Data for the Nation

USGS Surge, Wave, and Tide Hydrodynamics (SWaTH) Network

Mount Rainier-Magma Cum Laude?

Not really! Because of its elevation (14,410 f), relief, hydrothermal alteration, icecap, glacier-fed radial valleys, and proximity to encroaching suburbs of the Seattle-Tacoma metropolis, Mount Rainier is the most threatening volcano in the Cascades.  Its next eruption could produce volcanic ash, lava flows, and avalanches of intensely hot rock and volcanic gases, called pyroclastic flows.


Learn More:

Other Cascades Volcanoes FAQs

Mount Rainier Multimedia

Airborne Volcanic Ash- A Global Threat to Aviation

Volcano Notification Service

Regional Preparedness Resources


Mount  Rainier

Do you have a 3D map?

It might be time to get one.  All 3DEP products are available free of charge and without use restrictions. Visit our website to download 3DEP products.  3DEP products and services consist of standard digital elevation models (DEMs) at various horizontal resolutions, elevation source and associated datasets, an elevation point query service, and bulk point query service.

Learn  More:

Elevation FAQs

3DEP Products and Services

TNM Elevation

Elevation Video

TNM News & Events

Using TNM Web Services in ArcMap

Have you kissed a frog lately?

First you may want to make sure it is not a toad. Toads have a poison gland behind their eyes with a chubby body and shorter legs. Amphibians are ecologically important for several reasons. They are critical predators of invertebrates, helping to stabilize insect populations, and they serve as prey to other animals, such as birds. Amphibians are also indicator species; that is, they are sensitive to specific environmental factors and their fate can help predict the health of the ecosystem. Scientists are only beginning to realize the potential amphibians have for providing potentially lifesaving medicines to fight infections.


Learn More:

Amphibian FAQs

Frog and Toad Calls

National Amphibian Atlas

Amphibian Conservation & the Wetlands Reserve Program

North American Amphibian Monitoring Program

ANURA- Frogs and Toads