Early Earthquake Warning! Safety Potentials and Limits
Possible alert times that earthquake early warning systems can provide people at different levels of ground motion from light to very strong shaking.Read Story
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Costs and consequences of natural hazards can be enormous; each year more people and infrastructure are at risk. We develop and apply hazards science to help protect U.S. safety, security, and economic well being. These scientific observations, analyses, and research are crucial for the Nation to become more resilient to natural hazards.Read Our Science Strategy
What persuades someone to heed a debris flow or wildfire evacuation warning? SAFRR partners in emergency management are especially interested in the results of this study, now underway with Columbia's Center for Research on Environmental Decisions.
Ecosystems throughout the western U.S. are often dependent on a particular fire regime to reduce hazardous fuels and rejuvenate forests or even guide evolution of plant life and regulate ecological communities. Today fire’s role is more complicated. For example, fire can favor invasive plants and these invaders may, in turn, alter the fire regime.
SAFRR is now a partner in the Los Angeles County Community Disaster Resilience project, a 3-year pilot collaboration to promote community resilience in the face of a wide range of public health emergencies.
Organisms have different abilities to adapt to disturbances. Some disturbances can be catastrophic to one species and inconsequential to another. Our Forest and Rangeland Ecosystem Science Center (FRESC) scientists are studying the effects of disturbances on species, biogeochemistry, water quality, habitat connectivity and landscape patterns.
Bringing together seismologists, emergency managers, risk communication researchers, and design professionals to develop a framework for earthquake probability messages for both emergency managers and the general public.
Worked with USGS California Volcano Observatory (CalVO) and California Office of Emergency Services (Cal OES) to plan and stage a workshop to raise awareness, increase buy-in, and gather information for a volcano hazards annex to the California's State emergency plan.
In the late summer of 2005, the remarkable flooding brought by Hurricane Katrina, which caused more than $200 billion in losses, constituted the costliest natural disaster in U.S. history. However, even in typical years, flooding causes billions of dollars in damage and threatens lives and property in every State.
This website brings together information about current and past flooding and USGS flood-focused resources. The USGS provides practical, unbiased information about the Nation's rivers and streams that is crucial in mitigating hazards associated with floods.
It aims at providing a unified system of space data acquisition and delivery to those affected by natural or manmade disasters through Authorized Users. Each member agency has committed resources to support the provisions of the Charter and thus is helping to mitigate the effects of disasters on human life and property.
Volcano-alert notifications are produced by Volcano Observatory scientists based on analysis of data from monitoring networks, direct observations, and satellite sensors. They are issued for both increasing and decreasing volcanic activity and include text about the nature of the unrest or eruption and about potential or current hazards and likely outcomes.
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.
Seafloor photograph of a spider crab, sediment, rocks, taken by the Woods Hole Coastal and Marine Science Center SeaBOSS during a deployment off the R/V Connecticut in Long Island Sound
Long Island Sound Survey mapping team. This project is a collaboration of several agencies and institutions including Univ of Connecticut, Univ of New Haven, Connecticut Department of Energy and Environmental Protection, NOAA, LDEO, USGS
This HiRISE image cutout shows Recurring Slope Lineae in Tivat crater on Mars in enhanced color. The narrow, dark flows descend downhill (towards the upper left). Analysis shows that the flows all end at approximately the same slope, which is similar to the angle of repose for sand.
Dark features previously proposed as evidence for significant liquid water flowing on Mars have now been...
SeaBOSS on the fantail of the R/V Connecticut on Long Island Sound at sunrise
Flooding on a road in Olympic National Park, Washington, on November 24, 2017.
A series of images from various sources of shaded-relief topography show the progression of the Mud Creek landslide area, from 2010 through October 12, 2017.
- lidar data from 2010
- lidar data from 2016
- structure-from-motion (SfM), March 8, 2017
- SfM, May 19, 2017
- SfM, May 27, 2017
- SfM, May 31, 2017
- SfM, June 13, ...
An introduction to GIS data using ArcMap 10.1 and higher; intended for planetary geologic mappers.
Video shot from drones yields details about changing landslide on California’s Big Sur coast
On October 12, USGS drones collected video footage of the Mud Creek landslide, which buried California State Highway 1 under a third-of-a-mile-wide mass of rock and dirt on May 20. USGS scientists have been monitoring the slide by transforming photos shot from an airplane into...
On the east end of West Ship Island, dunes were overtopped by elevated water levels during Hurricane Nate. The predicted probability of overwash for this location was 100%.
When a major storm is on the horizon, the USGS uses its water monitoring, coastal change, mapping, and modeling expertise to help prepare for, respond to, and recover from hurricanes and tropical storms.
Editor’s note: this news release will be updated online with more information on the streamgage records being set in Texas as it becomes available.
Rivers and streams reached record levels as a result of Hurricane Harvey’s rainfall, with about 40 U.S. Geological Survey streamgages measuring record peaks.
As Harvey’s record breaking rainfall and catastrophic flood waters recede in Texas and western Louisiana, U.S. Geological Survey teams are collecting high water marks, monitoring water levels and coastal change, retrieving storm tide sensors and collecting samples for water quality analysis.
USGS Installs Storm-Tide Sensors along Georgia and South Carolina Coasts prior to Hurricane Irma’s Arrival
With hurricanes in the east and wildfires in the west, natural hazards have the potential to impact a majority of Americans every year. USGS science provides part of the foundation for emergency preparedness whenever and wherever disaster strikes.
Reporters: Do you want to interview USGS scientists as they measure flooding? Please contact Jennifer LaVista or Lynne Fahlquist.
U.S. Geological Survey field crews are measuring record flooding in parts of south-central Texas following intense rainfall from Tropical Storm Harvey.