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Real-time Data

Our scientists gather information through periodic or continuous measurement in the field to provide a view of current conditions. In some instances, observations may not be subject to rigorous review before release; this will be noted in the documentation accompanying the data.

Filter Total Items: 299

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.
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