Unified Interior Regions


States L2 Landing Page Tabs

The Pacific Region has nine USGS Science Centers in California, Nevada, and Hawaii. The Regional Office, headquartered in Sacramento, provides Center oversight and support, facilitates internal and external collaborations, and works to further USGS strategic science directions.


Date published: January 23, 2020

New Study Provides Insights for Detecting the Invasive Brown Treesnake

Research by the USGS and Dickinson College reveals why scientists fail to detect brown treesnakes at low densities

Date published: October 7, 2019

Adaptive management strategies for potential impacts of climate change on Guam

Guam’s water demands are anticipated to increase. Potential impacts of sea-level rise and a changing climate on surface-water and groundwater resources are assessed. 

Filter Total Items: 30
Coral head that looks like lettuce sits on sandy bottom in clear blue water and is surrounded by brightly colored fish.
Date Published: February 5, 2020
Status: Active

Coral Reef Project

Explore the fascinating undersea world of coral reefs. Learn how we map, monitor, and model coral reefs so we can better understand, protect, and preserve our Nation's reefs.

Contacts: Curt Storlazzi
Value of US Coral Reefs for Risk Reduction
Date Published: January 21, 2020
Status: Active

The Value of U.S. Coral Reefs for Risk Reduction

Summary of the report, “Rigorously valuing the role of U.S. coral reefs in coastal hazard risk reduction”

    Contacts: Curt Storlazzi, Michael Beck
    Aerial photograph of Wake Island. The deep ocean water around the atoll is dark blue, the shallow lagoon water is light blue.
    Date Published: July 15, 2019
    Status: Active

    Low-lying areas of tropical Pacific islands

    Sea level is rising faster than projected in the western Pacific, so understanding how wave-driven coastal flooding will affect inhabited, low-lying islands—most notably, the familiar ring-shaped atolls—as well as the low-elevation areas of high islands in the Pacific Ocean, is critical for decision-makers in protecting infrastructure or relocating resources and people.

    Contacts: Curt Storlazzi
    Underwater view of tropical fish swimming in shallow water above a coral reef which reflects upward to the water surface.
    Date Published: July 15, 2019
    Status: Active

    Coral Reef Project: Guam

    As part of the USGS Coral Reef Project, the USGS is working on the west coast of Guam to help determine the effects of sedimentation in nearshore waters.

    Contacts: Curt Storlazzi
    USGS biologists sample fish and macroinvertebrates from Streams in Palau
    Date Published: February 19, 2019
    Status: Active

    Risk Analysis of Invasive Freshwater Fishes in Hawaii and Micronesia

    Invasive species threaten biodiversity around the world, especially on islands. USGS scientists are helping to identify fish species that have the greatest potential to invade the fresh waters of Microneisa. 

    Satellite image of an island showing its terrain, some land features like runways and towns, and the bright shallow waters.
    Date Published: December 10, 2018
    Status: Completed

    Exploring: Reservoir Capacity And Sedimentation Of The Fena Valley Reservoir Guam

    The Fena Valley Reservoir, located in southern Guam, is the primary source of water for the United States Naval Base Guam and nearby village residents. At full capacity, the reservoir surface area extends approximately 0.30 mi2, and drains a watershed area of about 5.88 mi2

    Department of Interior U.S.G.S Guam Magnetic Observatory sign
    Date Published: July 20, 2018
    Status: Active

    Guam (GUA)

    The Guam observatory was established in 1957. The observatory is situated on property owned by the U.S. Air Force according to terms of an agreement with the USGS and the Geomagnetism Program. The facility is shared with the USGS Fort Collins Science Center (FORT) ...

    Filter Total Items: 21
    Collage of three very small screenshots to use as an example of the web site.
    June 24, 2019

    Information about scientific data collected thr