Mission Areas

Natural Hazards

Mission Areas L2 Landing Page Tabs

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
Filter Total Items: 230
Date published: June 25, 2018
Status: Completed

Geologic Mapping Offshore of Rhode Island

The U.S. Geological Survey (USGS), in cooperation with the National Oceanic and Atmospheric Administration (NOAA), is mapping sea-floor geology and sedimentary environments offshore of Rhode Island. This site provides links to bathymetric, sidescan-sonar, sediment, photographic, seismic-reflection, and interpretive datasets, all presented in Geographic Information System (GIS) formats and...

Date published: June 23, 2018
Status: Active

Preliminary Locations of Landslide Impacts from Hurricane Maria, Puerto Rico

Disclaimer

This information is preliminary or provisional and is subject to revision. It is being provided to meet the need for timely science to assess ongoing hazards. The information has not received final approval by the U.S. Geological Survey (USGS) and is provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages...

Date published: June 23, 2018
Status: Active

Early Warning System

Once the smoke clears from a wildfire, the danger is not over!! Other hazards, such as flash floods and debris flows, now become the focus. Areas recently burned by wildfires are particularly susceptible to flash floods and debris flows during rainstorms.

Date published: June 23, 2018
Status: Active

Emergency Assessment of Post-Fire Debris-Flow Hazards

Estimates of the probability and volume of debris flows that may be produced by a storm in a recently burned area, using a model with characteristics related to basin shape, burn severity, soil properties, and rainfall.

Wildfire can significantly alter the hydrologic response of a watershed to the extent that even modest rainstorms can produce dangerous flash floods and debris flows....

Date published: June 22, 2018
Status: Active

Seattle, WA Landslide Information

More Information on Seattle's Project Impact.

Date published: June 19, 2018
Status: Active

USGS Woods Hole Coastal and Marine Science Center Samples Repository-Collections Management

Our Mission Statement

The mission of the Samples Repository (Buczkowski, 2018) is to

1. serve as the USGS repository for geological, biological, and geochemical samples collected through field research sponsored by the WHCMSC,

2. provide long-term storage of these samples collected by WHCMSC scientists and affiliated researchers under controlled conditions to ensure...

Date published: June 19, 2018
Status: Active

USGS Woods Hole Coastal and Marine Science Center Samples Repository- Facilities

The USGS Woods Hole Coastal and Marine Science Center's Samples Repository is co-located on the Woods Hole Oceanographic Institution's Quissett Campus at 384 Woods Hole Road in Woods Hole, Massachusetts.

The K.O. Emery Geotechnical Wing serves as the primary storage location for all geological, biological, and geochemical samples collected through USGS research, or in the permanent...

Date published: June 18, 2018
Status: Active

USGS Woods Hole Coastal and Marine Science Center Samples Repository

Since 2002, the Woods Hole Coastal and Marine Science Center’s Samples Repository (WHCMSC) has been supporting research by providing secure storage for geological, biological, and geochemical samples; maintaining organization and an active inventory of these sample collections; as well as by providing access to these collections for study and reuse.

Over the years, local storage...

Date published: June 18, 2018
Status: Active

Significant Landslides in the United States

Significant Landslide Events 1906-1999

Please Note: Additional landslides may be added as they occur and are evaluated over time.

Date published: June 8, 2018
Status: Active

Seattle Area, Washington

Contacts: Rex Baum, The National Weather Service and the City of Seattle, Washington
Date published: June 8, 2018
Status: Active

Portland, Oregon

Recent Conditions

Instrument installation at this site took place during the summer and fall of 2006. These instruments are used to monitor and detect changes in local conditions, including

Contacts: Jonathan Godt, Rex Baum, Portland State University, The Oregon Department of Geology and Mineral Industries
Date published: June 8, 2018
Status: Active

Millicoma Meander, Elliott State Forest, Oregon

Recent Conditions

Instruments were installed in late summer 2012 and are used to monitor and detect changes in local conditions, including

Contacts: Rex Baum, Jeffrey Coe, Joel Smith, The Oregon Department of Forestry
Filter Total Items: 105
Date published: March 7, 2016

ISIS – The Integrated System for Imagers and Spectrometers

ISIS has many standard image processing operations such as contrast stretch, image algebra, filters, and statistical analysis. Isis operates on both classical two-dimensional images as well as three-dimensional cubes collected from imaging spectrometers. It also has unique capabilities for processing data from NASA spacecraft missions.

Date published: March 7, 2016

PILOT – The Planetary Image LOcator Tool

PILOT is a web based search tool for the Unified Planetary Coordinate (UPC) database of the Planetary Data System. PILOT features SPICE-corrected image locations and searching capabilities using a navigable map, user selectable image constraints, and facilitates bulk downloads and/or image processing using POW.

Date published: March 7, 2016

POW – The Map Projection on the Web

The Map Projection on the Web service was created to help researchers convert raw Planetary Data System images to a science-ready map projected images. The system integrates the Planetary Image LOcator Tool (PILOT) and the Unified Planetary Coordinate (UPC), ISIS3, GDAL, and the Astrogeology processing cluster for its’ processing needs.

Date published: March 7, 2016

Astro Web Maps – Our Web Mapping Services (WMS) and Web Feature Services (WFS)

Astro Web Maps – Our Web Mapping Services (WMS) and Web Feature Services (WFS) are based on Open Geospatial Consortium standards and allow capable mapping clients to view full-resolution planetary mosaicked Basemaps. Services are available for community use and are critical for our Planetary Nomenclature, Planetary Geologic Mapping and PILOT sites

Date published: March 7, 2016

Map-a-Planet 2

Allows existing map-projected (derived) image products to be re-projected, stretched, clipped, and converted into a variety of useful formats. Version 2 allows us to quickly add new mosaics and potentially many other derived science products for conversion and download.

Date published: March 7, 2016

GDAL – The Geospatial Data Abstraction Library

GDAL is a translator library for raster geospatial data formats that is released under an X/MIT style Open Source license by the Open Source Geospatial Foundation. As a library, it presents a single abstract data model for all supported formats. It also comes with a variety of useful commandline utilities for data translation and processing.

Date published: March 7, 2016

Real-time Earthquake Information

Get real-time earthquake notifications sent to you using a number of popular mediums: Feeds, Email, Twitter, etc…

Date published: March 7, 2016

Flood Watch

Maps of flood and high flow conditions within the U.S.

Date published: March 4, 2016

Technology and Tools

Links to a variety of Coastal and Marine Geology mapping technologies, data modeling and visualization tools.

Date published: March 4, 2016

Latest Earthquakes Map and List

View recent events or search for past earthquakes. Optimized for mobile and desktop.

Date published: March 4, 2016

Research Data and Products

USGS earthquake data including real-time and historic earthquake catalogs, GIS data, hazards, and more.

Date published: March 4, 2016

Software for Landslide Assessments and Modeling

USGS software for landslide assessments and modeling that include SLAMMER, TRIGRS, PTCOUNT and more.

Filter Total Items: 4,151
Year Published: 2018

Seismic hazard, risk, and design for South America

We calculate seismic hazard, risk, and design criteria across South America using the latest data, models, and methods to support public officials, scientists, and engineers in earthquake risk mitigation efforts. Updated continental scale seismic hazard models are based on a new seismicity catalog, seismicity rate models, evaluation of earthquake...

Petersen, Mark D.; Harmsen, Stephen; Jaiswal, Kishor; Rukstales, Kenneth S.; Luco, Nicolas; Haller, Kathleen; Mueller, Charles; Shumway, Allison
Mark D. Petersen, Stephen C. Harmsen, Kishor S. Jaiswal, Kenneth S. Rukstales, Nicolas Luco, Kathleen M. Haller, Charles S. Mueller, Allison M. Shumway; Seismic Hazard, Risk, and Design for South America. Bulletin of the Seismological Society of America; 108 (2): 781–800. doi: https://doi.org/10.1785/0120170002.

Year Published: 2018

Variabilities in probabilistic seismic hazard maps for natural and induced seismicity in the central and eastern United States

Probabilistic seismic hazard analysis (PSHA) characterizes ground-motion hazard from earthquakes. Typically, the time horizon of a PSHA forecast is long, but in response to induced seismicity related to hydrocarbon development, the USGS developed one-year PSHA models. In this paper, we present a display of the variability in USGS hazard curves due...

Mousavi, S. Mostafa; Beroza, Gregory C.; Hoover, Susan M.
Mousavi, S.M., G.C. Beroza, and S.M. Hoover (2018). Variabilities in probabilistic seismic hazard maps for natural and induced seismicity in the central and eastern United States. The Leading Edge, 37(2), 141a1-141a9.

Year Published: 2018

Earthquake potential in California-Nevada implied by correlation of strain rate and seismicity

Rock mechanics studies and dynamic earthquake simulations show that patterns of seismicity evolve with time through (1) accumulation phase, (2) localization phase, and (3) rupture phase. We observe a similar pattern of changes in seismicity during the past century across California and Nevada. To quantify these changes, we correlate GPS strain...

Zeng, Yuehua; Petersen, Mark D.; Shen, Zheng-Kang
Zeng, Y., Petersen, M. D., & Shen, Z.-K.(2018). Earthquake potential in California-Nevada implied by correlation of strain rate and seismicity. Geophysical Research Letters, 45. https://doi.org/10.1002/2017GL075967

Year Published: 2018

Chirp subbottom profile data collected in 2015 from the northern Chandeleur Islands, Louisiana

As part of the Barrier Island Evolution Research project, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted a nearshore geophysical survey around the northern Chandeleur Islands, Louisiana, in September 2015. The objective of the project is to improve the understanding of barrier island...

Forde, Arnell S.; DeWitt, Nancy T.; Fredericks, Jake J.; Miselis, Jennifer L.
Forde, A.S., DeWitt, N.T., Fredericks, J.J., and Miselis, J.L., 2018, Chirp subbottom profile data collected in 2015 from the northern Chandeleur Islands, Louisiana: U.S. Geological Survey Data Series 1077, https://doi.org/10.3133/ds1077.

Year Published: 2018

Quaternary sediment thickness and bedrock topography of the glaciated United States east of the Rocky Mountains

Beginning roughly 2.6 million years ago, global climate entered a cooling phase known as the Pleistocene Epoch. As snow in northern latitudes compacted into ice several kilometers thick, it flowed as glaciers southward across the North American continent. These glaciers extended across the northern United States, dramatically altering the...

Soller, David R.; Garrity, Christopher P.
Soller, D.R., and Garrity, C.P., 2018, Quaternary sediment thickness and bedrock topography of the glaciated United States east of the Rocky Mountains: U.S. Geological Survey Scientific Investigations Map 3392, 2 sheets, scale 1:5,000,000. https://doi.org/10.3133/sim3392.

Year Published: 2018

Do large (magnitude ≥8 ) global earthquakes occur on preferred days of the calendar year or lunar cycle?

No.

Hough, Susan E.
Hough, S. E. (2018). Do Large (Magnitude≥ 8) Global Earthquakes Occur on Preferred Days of the Calendar Year or Lunar Cycle?. Seismological Research Letters, 89:2A, 577-581.

Year Published: 2018

Geoelectric hazard maps for the Mid-Atlantic United States: 100 year extreme values and the 1989 magnetic storm

Maps of extreme value geoelectric field amplitude are constructed for the Mid‐Atlantic United States, a region with high population density and critically important power grid infrastructure. Geoelectric field time series for the years 1983–2014 are estimated by convolving Earth surface impedances obtained from 61 magnetotelluric survey sites...

Love, Jeffrey J.; Lucas, Greg M.; Kelbert, Anna; Bedrosian, Paul A.
Love, J. J., Lucas, G. M., Kelbert, A. & Bedrosian, P. A., 2018. Geoelectric hazard maps for the Mid-Atlantic United States: 100 year extreme values and the 1989 magnetic storm, Geophys. Res. Lett., 45(1), 5-15, doi:10.1002/2017GL076042.

Year Published: 2018

Revised recommended methods for analyzing crater size-frequency distributions

Impact crater populations crucially help us to understand solar system dynamics, planetary surface histories, and surface modification processes. A single previous effort to standardize how crater data are displayed in graphs, tables, and archives, was in a 1978 NASA report by the Crater Analysis Techniques Working Group, published in 1979 in...

Robbins, Stuart J.; Riggs, Jamie D.; Weaver, Brian P.; Bierhaus, Edward B.; Chapman, Clark R.; Kirchoff, Michelle R.; Singer, Kelsi N.; Gaddis, Lisa
Robbins, S.J., J.D. Riggs, B.P. Weaver, E.B. Bierhaus, C.R. Chapman, M.R. Kirchoff, K.N. Singer and L.R. Gaddis, 2018, Revised Recommended Methods for Analyzing Crater Size-Frequency Distributions, Meteoritics and Planetary Science, 53, Nr 4, 891-931.

Year Published: 2018

Extreme-event geoelectric hazard maps: Chapter 9

Maps of geoelectric amplitude covering about half the continental United States are presented that will be exceeded, on average, once per century in response to an extreme-intensity geomagnetic disturbance. These maps are constructed using an empirical parameterization of induction: convolving latitude-dependent statistical maps of extreme-value...

Love, Jeffrey J.; Bedrosian, Paul A.

Year Published: 2018

Detecting geothermal anomalies and evaluating LST geothermal component by combining thermal remote sensing time series and land surface model data

This paper explores for the first time the possibilities to use two land surface temperature (LST) time series of different origins (geostationary Meteosat Second Generation satellite data and Noah land surface modelling, LSM), to detect geothermal anomalies and extract the geothermal component of LST, the LSTgt. We hypothesize that in geothermal...

Romaguera, Mireia; Vaughan, R. Greg; Ettema, J.; Izquierdo-Verdiguier, E.; Hecker, C. A.; van der Meer, F.D.

Year Published: 2018

The electric storm of November 1882

In November 1882, an intense magnetic storm related to a large sunspot group caused widespread interference to telegraph and telephone systems and provided spectacular and unusual auroral displays. The (ring current) storm time disturbance index for this storm reached maximum −Dst ≈ 386 nT, comparable to Halloween storm of 29–31...

Love, Jeffrey J.
Love, J. J. (2018). The electric storm of November 1882. Space Weather, 16, 37–46. https://doi.org/10.1002/2017SW001795.

Year Published: 2018

The size, distribution, and mobility of landslides caused by the 2015 Mw7.8 Gorkha earthquake, Nepal

Coseismic landslides pose immediate and prolonged hazards to mountainous communities, and provide a rare opportunity to study the effect of large earthquakes on erosion and sediment budgets. By mapping landslides using high-resolution satellite imagery, we find that the 25 April 2015 Mw7.8 Gorkha earthquake and aftershock sequence produced at...

Roback, Kevin; Clark, Marin K.; West, A. Joshua; Zekkos, Dimitrios; Li, Gen; Gallen, Sean F.; Chamlagain, Deepak; Godt, Jonathan W.
Roback, K., Clark, M. K., West, A. J., Zekkos, D., Li, G., Gallen, S. F., Chamlagain, D., and Godt, J. W., 2018, The size, distribution, and mobility of landslides caused by the 2015 Mw7.8 Gorkha earthquake, Nepal: Geomorphology, v. 301, p. 121-138.

Filter Total Items: 2,382
Lava flowing
July 3, 2018

Kīlauea Volcano — Evolution of a Blocked Channel (Part 2)

Evolution of a blocked channel, image 2: While observing this area of the fissure 8 lava channel near Kapoho cone during the morning overflight, geologists witnesed an "apartment-building-sized" blockage within the channel give way and be pushed down stream by the pressurized lava behind. The dark portion within the red channel is the freed blockage. Lavacontinues to

...
Geologist making observations of an active fissure
July 3, 2018

Kīlauea Volcano — Geologist Making Observations of Fissure 8

Fisheye lens photograph of a USGS geologist making observations of the 

...
A blocked lava channel
July 3, 2018

Kīlauea Volcano — Evolution of a Blocked Channel (Part 1)

Evolution of a blocked channel, photo 1. A blockage of rafted material within the lava channel causes lava to flow over its banks near the Kapoho cone. In this section of the lava channel a cold lava flow from the 1960 eruption forms a barrier on the north side, which initially directed the channel to the southeast. A constriction in the channel formed at the bend where

...
View of muddy, eroding coastal bluffs with a visible permafrost layer and tumbling tundra on top.
July 3, 2018

Actively eroding coastal permafrost bluff on Barter Island

Photograph of the actively eroding coastal permafrost bluff on Barter Island, located on the northern coast of Alaska.

Aerial shot showing lava flowing into residential area
July 2, 2018

Kīlauea Volcano — Lava at Kapoho Beach Lots

At the coast, the northern margin of the flow field is still oozing pasty lava at several points in the area of Kapoho Beach Lots.

Close up of a lava overflow
July 2, 2018

Kīlauea Volcano — Overfows

Close up image of overflows from the fissure 8 lava channel. Photograph taken during the morning overflight.

Drone shot looking at brightly colored red and orange lava flows
July 2, 2018

Kīlauea Volcano — Drone Over Lava Channel

USGS Mavic Pro drone image of the fissure 8 lava channel looking toward the vent. Overflows can be seen as incandescent spots beyond the channel margins. Drone flights and resultant imagery help scientists

...
Aerial view of an ocean entry with laze plumes
July 2, 2018

Kīlauea Volcano — Ocean Entry

The ocean entry being fed by a crusted over channel has fewer tiny ooze-out channels than yesterday spilling into the water. One larger ooze-out channel making dominant entry plume at the northern end of the broad ocean entry.

Annotated photo looking at fissure 8 lava channels and identifying lava flows in residential areas and the ocean entry
July 2, 2018

Kīlauea Volcano — Fissure 8 Channel (Annotated)

Annotated drone image of Kīlauea Volcano's lower East Rift Zone fissure 8 lava channel. Image captured near Kapoho Crater looking east toward the ocean entry. Incandescent flow margin is more easily identified in the dark - specifically here in the area of Kapoho Beach Lots.

Aerial of lava channels
July 2, 2018

Kīlauea Volcano — Open Lava Channels

Fountains from Fissure 8 spatter cone continue to supply lava to the open channel with intermittent small, short-

...
July 1, 2018

Kīlauea Volcano — Whirlwind Above Fissure 8

In the Leilani Estates subdivision, Hawaiian Volcano Observatory field crews monitoring 

...
July 1, 2018

Kīlauea Volcano — Collapse/Explosion Event at Halema‘uma‘u

On June 30, 2018, at 02:51 PM HST, a collapse/explosion event occurred at Kīlauea's summit. An ash-poor 

...
Filter Total Items: 367
Date published: January 30, 2018

January 23, 2018 M7.9 Gulf of Alaska Earthquake and Tsunami

One week ago, on January 23rd at 12:31 a.m. local time, Alaskans were rocked by a magnitude 7.9 earthquake, with an epicenter in the Gulf of Alaska, about 350 miles southwest of Anchorage, and about 175 miles southeast of Kodiak Island.

Date published: January 29, 2018

Elementary school students visit USGS office in Santa Cruz

On January 17, 4th and 5th graders from De Laveaga Elementary School visited the USGS Pacific Coastal and Marine Science Center in Santa Cruz, California.

Date published: January 26, 2018

USGS Geologists Join Efforts in Montecito to Assess Debris-Flow Aftermath

Days after fatal debris flows devastated Southern California’s Montecito community,  a team of U.S. Geological Survey geologists joined county, state, and federal partners to survey and  evaluate the aftermath.

 

Date published: January 25, 2018

CMGP Lidar Coordinator participating in National Elevation Assessments and Coordination session at 2018 ASPRS Annual Conference

Xan Fredericks, Lidar Coordinator for the Coastal and Marine Geology Program, will moderate and participate in the National Elevation Assessments and Coordination session at the 2018 American Society for Photogrammetry and Remote Sensing (ASPRS) Annual Conference.

Date published: January 24, 2018

TV interview with NBC Philadelphia about flooding threats to U.S. East Coast

USGS geologist Patrick Barnard gave a live interview to Philadelphia's NBC10 meteorologist Tammie Souza on January 23 during a national weather conference in Lake Tahoe, California.

Date published: January 24, 2018

Alaska Earthquake Rattles Florida’s Groundwater Plumbing

At 12:32 am Alaska time on January 23, 2018, a magnitude 7.9 earthquake shook Alaska residents out of their beds and set off fears of a tsunami all down the West Coast. Fortunately, the tsunami was only a few inches in height, but within an hour of the earthquake in Alaska, waves of a different sort were hitting far away in Florida. 

Date published: January 23, 2018

ShakeAlert: The Path to West Coast Earthquake Early Warning: How a Few Seconds Can Save Lives and Property — Public Lecture

News reporters are invited to attend an illustrated public lecture to learn how U.S. Geological Survey scientists and partners are developing ShakeAlert. The ShakeAlert earthquake early warning system will begin limited operations this year. Alerts could save lives and properties but several challenges remain. With millions at risk, why isn't full public alerting happening yet?

Date published: January 23, 2018

Magnitude 7.9 Earthquake Gulf of Alaska

The USGS has up-to-date details on the January 23, 2018 event.

Date published: January 18, 2018

USGS Scientist Mobilizes with Recon Team to Learn from Mexico's Earthquake Early Warning System

USGS seismologist Elizabeth Cochran studied the performance of Mexico City’s earthquake early warning system,  during devastating Sept. 19, 2017 event

 

Date published: January 17, 2018

USGS scientist explains how king tides provide a glimpse of future sea levels

USGS geologist Patrick Barnard spoke to the public at a “Coffee and King Tides” gathering held in Half Moon Bay, California, on December 4.

Date published: January 17, 2018

USGS coastal-flooding projections inform national defense authorization act

Results of USGS research investigating sea-level rise impacts to Department of Defense (DoD) facilities in Pacific atolls are included in the National Defense Authorization Act for Fiscal Year 2018.

Date published: January 16, 2018

Enthusiastic response to open house at the Pacific Coastal and Marine Science Center in Santa Cruz

USGS scientists at the Pacific Coastal and Marine Science Center in Santa Cruz, California, spoke with an estimated 300 visitors during a December 9 open house.