USGSgov FAQ

Answers to your most common questions about USGSgov.

Quick, simple, and helpful information at a glance.

What is USGS?
USGS (United States Geological Survey) is a scientific agency that studies the natural resources, hazards, and environmental health of the United States.
How often are earthquakes updated on the USGS website?
Earthquake data is constantly updated in real-time on the USGS website.
How can I report a missing earthquake on the USGS website?
You can report a missing earthquake by filling out the "Did You Feel It?" form on the USGS website or by contacting your local USGS office.
Why can't I find a specific earthquake on the USGS website?
There may be a delay in earthquake data being processed and displayed on the USGS website. If you believe a significant earthquake is missing, please contact your local USGS office.
How can I interpret earthquake intensity and magnitude on the USGS website?
The Modified Mercalli Intensity (MMI) scale on the USGS website describes what people experience during an earthquake, while the magnitude scale (measured in Richter or moment magnitude) describes the strength of the earthquake based on seismogram data.
What is a seismograph and how does it work?
A seismograph is a device used to measure and record seismic waves caused by earthquakes. It consists of a heavy weight attached to a pen, which records the movement of the Earth's surface on a rotating drum of paper.
How can I access USGS topographic maps?
You can access USGS topographic maps through the USGS Store or through free online platforms such as USGS TopoView.
What is the USGS National Map?
The USGS National Map is an online platform that provides access to national geospatial data, including maps, images, and other geographic information.
How can I report an error on a USGS map?
You can report an error on a USGS map by using the 'Report Error' button on the USGS National Map Viewer or by contacting your local USGS office.
What is the USGS StreamStats?
USGS StreamStats is an online mapping tool that allows users to easily obtain streamflow statistics and watershed characteristics for any location within the United States.
How accurate are USGS streamflow data?
USGS streamflow data is generally accurate, but there may be occasional errors or discrepancies due to equipment malfunctions or extreme weather events.
Can I access USGS water data on my phone?
Yes, you can access USGS water data through the USGS Water Data for the Nation website, which is mobile-friendly.
Why can't I access USGS Water Data for the Nation?
There may be occasional outages or maintenance periods for the USGS Water Data for the Nation website. If the issue persists, please contact USGS for assistance.
What is the USGS EarthExplorer?
USGS EarthExplorer is a web-based platform that provides access to satellite, aerial, and other remotely-sensed imagery and data.
Can I access USGS EarthExplorer data for free?
Yes, most data on USGS EarthExplorer is available for free download. However, there may be a fee for some high-resolution data products.
How do I know which USGS EarthExplorer data to download?
USGS EarthExplorer provides filters and search tools to help you find the data you need. You can also refer to the USGS EarthExplorer beginner's guide for tips on using the platform.
Is USGS EarthExplorer data suitable for scientific research?
USGS EarthExplorer provides a wide range of data products, and it is important to carefully consider the quality and limitations of each dataset before using it for research purposes.
What is the USGS Hazards Data Distribution System?
The USGS Hazards Data Distribution System provides access to natural hazards data from the USGS National Earthquake Information Center, Volcano Hazards Program, and more.
Can I use USGS Hazards data for emergency management?
Yes, USGS Hazards data is a valuable resource for emergency management and response. However, it is important to use the data in conjunction with other information and expert guidance.
How often are USGS Landsat satellite images updated?
The Landsat satellites collect images of the Earth's surface about once every 16 days. However, cloud cover or other factors may affect image availability.
How do I know what vegetation type is shown on a USGS Landsat image?
You can refer to the legend provided on the USGS Landsat image or use the spectral bands and vegetation indices to determine the type of vegetation in the image.
What is the USGS Landsat Collection?
The USGS Landsat Collection is a continually updated dataset of Landsat satellite images that provides a consistent and reliable record of the Earth's land surface.
Can I use USGS Landsat data for commercial purposes?
Yes, you can use USGS Landsat data for commercial or non-commercial purposes without a license or fee. However, some restrictions may apply for some commercial use cases.
What is the USGS National Minerals Information Center?
The USGS National Minerals Information Center (NMIC) is the primary source of minerals information for the United States, providing both domestic and global data and analysis.
Can I request custom data from the USGS National Minerals Information Center?
Yes, the USGS NMIC offers a fee-based custom data service that allows users to request specific data or analyses tailored to their needs.
Is there a USGS database for mineral availability?
Yes, the USGS Mineral Availability System (MAS) provides information on mineral resources and the potential for undiscovered resources in the United States.
How do I report a USGS website error or malfunction?
You can report a USGS website error or malfunction by contacting the appropriate USGS webmaster or by using the feedback form on the USGS website.
Are there any age restrictions for using USGS data or services?
There are no age restrictions for accessing or using USGS data or services. However, some data may be more suitable for use by older students or adults.