-
San Fernando Valley California Earthquakes of 1971 and 1994
This slide set compares two earthquakes that were separated by a distance of 10 miles and a time of 23 years. Disproving the notion that once an earthquake has occurred, an area... -
Auroral Electrojet (AE, AL, AO, AU) - A Global Measure of Auroral Zone...
The AE index is derived from geomagnetic variations in the horizontal component observed at selected (10-13) observatories along the auroral zone in the northern hemisphere. To... -
1988 Leninakan-Spitak-Kirovakan, Armenia Images
The magnitude 6.9 earthquake shook northwestern Armenia, and was followed four minutes later by a magnitude 5.8 aftershock. The earthquakes affected an area 80 kilometers in... -
Volcanoes in Eruption - Set 2
The word volcano is used to refer to the opening from which molten rock and gas issue from Earth's interior onto the surface, and also to the cone, hill, or mountain built up... -
1999 Duzce, Turkey Images
The magnitude 7.2 quake occurred at 6.57 pm local time (16:57 GMT). Duzce lies on the eastern fringe of the region hit by the August 17 quake. Some areas experienced a one-two... -
1973 Veracruz, Mexico Images
South of Veracruz, southeastern Mexico. Damage: Severe. The earthquake caused heavy damage in the states of Morelos, Puebla, and Veracruz. Thousands were left homeless. -
null Slumps and Subsidence, null Images
The slopes above streams and rivers are subjected to a variety of processes that cause them to recede and retreat from the river or stream channel. These processes, collectively... -
Humboldt, California 1 arc-second DEM
The 1-second Humboldt, California Elevation Grid provides bathymetric data in ASCII raster format of 1-second resolution in geographic coordinates. This grid is strictly for... -
Chi-Chi, Taiwan Earthquake, September 21, 1999
On September 21, 1999, at 1:47 AM local time, a magnitude MW 7.6 earthquake was felt throughout the island of Taiwan. A five county area, including the city of Taichung,... -
Mayaguez, Puerto Rico Coastal Digital Elevation Model
NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions. These integrated bathymetric-... -
Akutan, Alaska Coastal Digital Elevation Model
NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) to support individual coastal States as part of the National Tsunami... -
Homer, Alaska 8 arc-second DEM
The 8-second Homer Alaska Elevation Grid provides bathymetric data in ASCII raster format of 8-second resolution in geographic coordinates. This grid is strictly for tsunami... -
Montauk, New York Coastal Digital Elevation Model
NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions. These integrated bathymetric-... -
Keauhou, Hawaii Coastal Digital Elevation Model
NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions. These integrated bathymetric-... -
1995 Hanshin-Awaji (Kobe), Japan Images
On the morning of January 17, 1995 (January 16 at 20:46 GMT), a major earthquake occurred near the City of Kobe, Japan. The greatest intensity of shaking for the 6.9 magnitude... -
Miami 1/3 arc-second MHW Coastal Digital Elevation Model
NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions. These integrated bathymetric-... -
Seismicity Catalog Collection, 2150 BC to 1996 AD
The Seismicity Catalog Collection is a compilation data on over four million earthquakes dating from 2150 BC to 1996 AD from NOAA's National Geophysical Data Center and U.S.... -
Tutuila, American Samoa 1/3 arc-second Coastal Digital Elevation Model
NOAA's National Geophysical Data Center (NGDC) is building high-resolution digital elevation models (DEMs) for select U.S. coastal regions. These integrated bathymetric-... -
Pearl Harbor, Hawaii 1 arc-second DEM
The 1/3-second Pearl Harbor Hawaii Elevation Grid provides bathymetric data in ASCII raster format of 1/3-second resolution in geographic coordinates. This grid is strictly for... -
US Geological Survey BLM/OCS Baltimore Canyon (Mid-Atlantic) Sediment...
This data set contains analytical data from samples acquired from the Baltimore Canyon (Mid-Atlantic) area of the Outer Continental Shelf, U.S. East Coast, by the U.S....