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Despite Isaac, Drought Persists in MidlandsStart with Science: Hurricane IsaacMagnitude 7.6 Earthquake in Costa RicaExpedition to Explore the ArcticOne Year Anniversary: Magnitude 5.8 Virginia Earthquake
Despite Isaac, Drought Persists in Midlands
The majority of the nation is still experiencing abnormally dry conditions, even after soaking rains from Isaac. Read more
Start with Science: Hurricane Isaac
While Hurricane Isaac has passed, scientific work to understand the storm’s impact on Gulf Coast states continues. Read more
Magnitude 7.6 Earthquake in Costa Rica
A magnitude 7.6 earthquake struck near the west coast of Costa Rica on September 5, 2012 at 14:42:10 UTC. Read more
Expedition to Explore the Arctic
Scientists are setting sail to map the Arctic seafloor and study ocean acidification. Read more
One Year Anniversary: Magnitude 5.8 Virginia Earthquake
It was one of the largest recorded earthquakes to occur in the east over the last century. Find out what scientists have learned in the past year. Read more
  • USGS Storm Surge Sensors

    USGS Storm Surge Sensors

    Tue, 28 Aug 2012

    In response to Hurricane Isaac, USGS has deployed several hundred storm surge sensors to collect information about the effects of Isaac on the Gulf Coast.

  • A History of Rubble and Rumblings: Earthquakes in the Eastern U.S.

    A History of Rubble and Rumblings: Earthquakes in the Eastern U.S.

    Mon, 27 Aug 2012

    Join us on September 5th in Reston, VA for a free public lecture on the 2011 Virginia earthquake!

  • Global Food Security in the 21st Century: Free USGS Public Lecture August 30

    Global Food Security in the 21st Century: Free USGS Public Lecture August 30

    Tue, 21 Aug 2012

    7 p.m.—Public lecture (also live-streamed over the Internet)

  • View all Science Picks

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    Quick look:
    Data were collected by the U.S. Geological Survey from 2003 through 2008 in the Eastern San Joaquin Groundwater Subbasin, 80 miles east of San Francisco, California, as part of a study of the increasing chloride concentrations in groundwater processes. Data collected include geologic, geophysical, chemical, and hydrologic data collected during and after the installation of five multiple-well monit    Groundwater data for selected wells within the Eastern San Joaquin Groundwater Subbasin, California, 2003-8
    (Released: Wed, 12 Sep 2012 00:00 -0500)

    Quick look:
    Closure of Glen Canyon Dam reduced sand supply to the Colorado River in Grand Canyon National Park by about 94% while its operation has also eroded the park's sandbar habitats. Three controlled floods released from the dam since 1995 suggest that sandbars might be rebuilt and maintained, but only if repeated floods are timed to follow tributary sand deliveries below the dam. Monitoring data show t    Abiotic & biotic responses of the Colorado River to controlled floods at Glen Canyon Dam, Arizona, USA
    (Released: Tue, 11 Sep 2012 00:00 -0500)

    Quick look:
    The influences of geologic and climatic factors on erosion and sedimentation processes in rivers draining the western flank of the California Coast Range are assessed. Annual suspended, bedload, and total sediment fluxes were determined for 16 river basins that have hydrologic records covering all or most of the period from 1950 to 2006 and have been relatively unaffected by flow storage, regulati    Sediment fluxes from California Coastal Rivers: the influences of climate, geology, and topography
    (Released: Tue, 11 Sep 2012 00:00 -0500)

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