All Data
Explore all data by the topics and refine type to find the digital information in a format suitable for direct input to software that can analyze its meaning in the scientific, engineering, or business context for which the data were collected.
Filter Total Items: 15978
Water Data Mapper Water Data Mapper
The National Water Information System (NWIS) provides map-interface access to data at over 1.5 million water-monitoring sites.
Water Quality Water Quality
Table-based interface allow you to get the latest water-quality data for thousands of water monitoring sites in the Nation.
Groundwater Groundwater
Table-based interface allow you to get the latest groundwater levels data for thousands of water monitoring sites in the Nation.
Surface water Surface water
Table-based interface allow you to get the latest streamflow and other surface-water data for thousands of water monitoring sites in the Nation.
Flood Watch Flood Watch
Where in the Nation are floods or very high flows occurring now? How can I see these sites on a map and get to the data?
Surface Water Watch Surface Water Watch
WaterWatch displays maps, graphs, and tables describing real-time, recent, and past streamflow conditions for the United States.
Subscribe to Volcano Notification Services Subscribe to Volcano Notification Services
The Volcano Notification Service (VNS) is a free service that sends you notification emails about volcanic activity happening at U.S. monitored volcanoes. You can customize the VNS to deliver notifications for certain volcanoes or a range of volcanoes, and you can also choose the notification types you want to receive. Notifications are issued by the five U.S. Volcano Observatories.
Programmatic Access Programmatic Access
A well-structured format readily parsed by most programming languages. This is a good option for software developers wishing to use earthquake data.
QuakeML QuakeML
A flexible, extensible and modular XML representation of seismological data which is intended to cover a broad range of fields of application in modern seismology.
Spreadsheet Applications Spreadsheet Applications
A simple text format suitable for loading data into spreadsheet applications. This is a good option for manual scientific analysis.
Atom Syndication Atom Syndication
A basic syndication format supported by a variety of feed readers. This is a good option for casually subscribing to earthquake information.
Earthquake Notification Service Earthquake Notification Service
The Earthquake Notification Service (ENS) is a free service that sends you automated notifications to your email or cell phone when earthquakes happen.