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Federal
Global Volcano Locations Database
National Oceanic and Atmospheric Administration, Department of Commerce —
NCEI maintains a database of over 1,500 volcano locations obtained from the Smithsonian Institution Global Volcanism Program, Volcanoes of the World publication. The... -
Federal
NCEI/WDS Global Significant Volcanic Eruptions Database, 4360 BC to Present
National Oceanic and Atmospheric Administration, Department of Commerce —
The Significant Volcanic Eruptions Database is a global listing of over 600 eruptions from 4360 BC to the present. A significant eruption is classified as one that... -
Federal
EMAG2v3: Earth Magnetic Anomaly Grid (2-arc-minute resolution)
National Oceanic and Atmospheric Administration, Department of Commerce —
EMAG2v3 is a global Earth Magnetic Anomaly Grid compiled from satellite, ship, and airborne magnetic measurements. It is a significant update of the previous release... -
Federal
August 1976 Moro Gulf, Philippines Images
National Oceanic and Atmospheric Administration, Department of Commerce —
On August 16, 1976, at 16:11:07 UTC, a magnitude (Mw) 8.0 earthquake shook Mindanao Island in the Philippines. It caused a destructive tsunami in the Celebes Sea that... -
Federal
World Magnetic Model High Resolution 2025
National Oceanic and Atmospheric Administration, Department of Commerce —
The World Magnetic Model High Resolution is a more detailed, accurate depiction of the geomagnetic field than the World Magnetic Model (WMM) because it has more... -
Federal
NOAA Continuously Operating Reference Stations (CORS) Network NGDA
National Oceanic and Atmospheric Administration, Department of Commerce —
The National Geodetic Survey (NGS), an office of NOAA's National Ocean Service, manages a network of Continuously Operating Reference Stations (CORS) that provide... -
Federal
NCEI/WDS Global Significant Earthquake Database, 2150 BC to Present
National Oceanic and Atmospheric Administration, Department of Commerce —
The Significant Earthquake Database is a global listing of over 5,700 earthquakes from 2150 BC to the present. A significant earthquake is classified as one that... -
Federal
EMAG2: Earth Magnetic Anomaly Grid (2-arc-minute resolution)
National Oceanic and Atmospheric Administration, Department of Commerce —
EMAG2 is a global Earth Magnetic Anomaly Grid compiled from satellite, ship, and airborne magnetic measurements. It is a significant update of our previous candidate... -
Federal
US Historic Declination Calculator
National Oceanic and Atmospheric Administration, Department of Commerce —
This programs derives a table of secular change in magnetic declination for a specified point in the conterminous United States. It utilizes the USD polynomial and... -
Federal
World Magnetic Model 2025
National Oceanic and Atmospheric Administration, Department of Commerce —
The World Magnetic Model is the standard model used by the U.S. Department of Defense, the U.K. Ministry of Defence, the North Atlantic Treaty Organization (NATO) and... -
Federal
May 1960 Puerto Montt, Valdivia, Chile Images
National Oceanic and Atmospheric Administration, Department of Commerce —
On May 22, 1960, a Mw 9.5 earthquake, the largest earthquake ever instrumentally recorded, occurred in southern Chile. The series of earthquakes that followed ravaged... -
Federal
Environmental Hazards and Mud Volcanoes in Romania
National Oceanic and Atmospheric Administration, Department of Commerce —
Romania, an eastern European country, is severely affected by a variety of natural hazards. These include frequent earthquakes, floods, landslides, soil erosion, and... -
Federal
Deep-Ocean Assessment and Reporting of Tsunamis (DART(R))
National Oceanic and Atmospheric Administration, Department of Commerce —
As part of the U.S. National Tsunami Hazard Mitigation Program (NTHMP), the Deep Ocean Assessment and Reporting of Tsunamis (DART(R)) Project is an ongoing effort to... -
Federal
Gravity Data For The State of Utah
National Oceanic and Atmospheric Administration, Department of Commerce —
The gravity station data (41,960 records) were compiled by the U. S. Geological Survey. This data base was received on February 23, 1993. Principal gravity parameters... -
Federal
March 1957 Aleutian Islands, USA Images
National Oceanic and Atmospheric Administration, Department of Commerce —
The magnitude 8.6 (Mw) earthquake occurred south of the Andreanof Islands, in the Aleutian Islands. It generated an 8-meter tsunami that did great damage on Adak... -
Federal
Worldwide Well Logs with Values of Conductivity, Bulk Density, Porosity, Grain Density, Resistivity, and Sonic Ratio Collected by the Ocean Drilling Program (ODP)
National Oceanic and Atmospheric Administration, Department of Commerce —
World-wide digital well log data collected for the Ocean Drilling Program (ODP) by Schlumberger Offshore Services under contract to Texas A&M University. The data... -
Federal
Magnetic Field Calculator
National Oceanic and Atmospheric Administration, Department of Commerce —
The Magnetic Field Calculator will calculate the total magnetic field, including components (declination, inclination, horizontal intensity, northerly intensity,... -
Federal
NGS Absolute Gravity Data
National Oceanic and Atmospheric Administration, Department of Commerce —
The NGS Absolute Gravity data (78 stations) was received in July 1993. Principal gravity parameters include Gravity Value, Uncertainty, and Vertical Gradient. The... -
Federal
Hawaii Volcanism: Impact on the Environment
National Oceanic and Atmospheric Administration, Department of Commerce —
Fewer than one hundred people have been killed by eruptions in the recorded history of Hawaii, and only one death has occurred in the 20th Century. However, the lava... -
Federal
Lamington, Papua New Guinea Images
National Oceanic and Atmospheric Administration, Department of Commerce —
This dormant stratovolcano in Papua New Guinea suddenly exploded in 1951. Nuees ardentes (glowing avalanches) shot down the mountain at 100 km per hour, devastated...
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