Web Tools

Vs30, the time-averaged shear-wave velocity ( Vs) in the upper 30 meters, is a key index adopted by the earthquake engineering community to account for seismic site conditions. USGS has compiled measured VS30 funded by the USGS and other governmental agencies for 4389 sites in the United States.

Latest earthquakes map and list (default view is past 24 hours, M2.5+). Tap/click on "gear icon" for options and settings.

US Geological Survey operates a streamflow monitoring network that extends across the United States and its territories. The network was analyzed systematically by Konrad and others (2022) for its coverage, resolution, and representation of a wide range of public interests in streamflow information The results can be used to identify priority areas for continued or expanded monitoring.

Comprehensive and Authoritative Lists of Non-Native Taxa Established in Alaska, Hawaii, and the Conterminous United States.

View recent monthly and daily groundwater levels in New England relative to long-term monthly statistics.

The Volcano Notification Service (VNS) is a free service that sends you notification emails about volcanic activity happening at US monitored volcanoes. You can customize the VNS to only deliver notifications for certain volcanoes, or a range of volcanoes, as well as choose the separate notification types you want to receive.

Know about earthquakes just after they happen in real-time via txt message, email, or social media. Plus, get everything you might need to add these earthquake alerts into your own web applications.

Did You Feel It? (DYFI) collects information from people who felt an earthquake and creates a shaking intensity map. Visit the Web Tool to report your experience with an earthquake or to see the shaking intensity map created by the felt reports.

Find past earthquakes and earthquake lists from specific locations and time windows. Results available in a variety of formats.

The Nontidal Network Mapper is a data-driven, interactive narrative that shares the short-term nutrient and suspended-sediment load and trend results for the Chesapeake Bay Program’s non-tidal network (NTN) and provides interactive tools to further examine results.

The Lake Tahoe Hydro Mapper is web-based application that provides access to real-time and historical data for Lake Tahoe and surrounding areas.

The U.S. Geological Survey (USGS) has partnered with North Carolina State University (NCSU), Louisiana State University (LSU) and University Corporation for Atmospheric Research (UCAR) to investigate hurricane-induced compound flooding and sediment dispersal using coupled hydrology and ocean models.