Due to a lapse in appropriations, the majority of USGS websites may not be up to date and may not reflect current conditions. Websites displaying real-time data, such as Earthquake and Water and information needed for public health and safety will be updated with limited support. Additionally, USGS will not be able to respond to inquiries until appropriations are enacted.  For more information, please see www.doi.gov/shutdown

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Filter Total Items: 4,552
Year Published: 2016

Comparing orbiter and rover image-based mapping of an ancient sedimentary environment, Aeolis Palus, Gale crater, Mars

This study provides the first systematic comparison of orbital facies maps with detailed ground-based geology observations from the Mars Science Laboratory (MSL) Curiosity rover to examine the validity of geologic interpretations derived from orbital image data. Orbital facies maps were constructed for the Darwin, Cooperstown, and Kimberley...

Stack, Kathryn M.; Edwards, Christopher; Grotzinger, J. P.; Gupta, S.; Sumner, D.; Edgar, Lauren; Fraeman, A.; Jacob, S.; LeDeit, L.; Lewis, K.W.; Rice, M.S.; Rubin, D.; Calef, F.; Edgett, K.; Williams, R.M.E.; Williford, K.H.
K.M. Stack et al., Comparing orbiter and rover image-based mapping of an ancient sedimentary environment, Aeolis Palus, Gale crater, Mars, Icarus (2016), http://dx.doi.org/10.1016/j.icarus.2016.02.024

Year Published: 2016

Barrier island breach evolution: Alongshore transport and bay-ocean pressure gradient interactions

Physical processes controlling repeated openings and closures of a barrier island breach between a bay and the open ocean are studied using aerial photographs and atmospheric and hydrodynamic observations. The breach site is located on Pea Island along the Outer Banks, separating Pamlico Sound from the Atlantic Ocean. Wind direction was a major...

Safak, Ilgar; Warner, John C.; List, Jeffrey H.
Safak, I., J. C. Warner, and J. H. List (2016), Barrier island breach evolution: Alongshore transport and bay-ocean pressure gradient interactions, J. Geophys. Res. Oceans, 121, doi:10.1002/2016JC012029.

Year Published: 2016

Statistical tests of simple earthquake cycle models

A central goal of observing and modeling the earthquake cycle is to forecast when a particular fault may generate an earthquake: a fault late in its earthquake cycle may be more likely to generate an earthquake than a fault early in its earthquake cycle. Models that can explain geodetic observations throughout the entire earthquake cycle may be...

Devries, Phoebe M. R.; Evans, Eileen
DeVries, Phoebe M. R.; Evans, Eileen L., 2016, Statistical tests of simple earthquake cycle models: Geophysical Research Letters, v. 43, n. 23, p. 12,036-12,045, doi:10.1002/2016GL070681.

Year Published: 2016

Cratering on Ceres: Implications for its crust and evolution

Thermochemical models have predicted that Ceres, is to some extent, differentiated and should have an icy crust with few or no impact craters. We present observations by the Dawn spacecraft that reveal a heavily cratered surface, a heterogeneous crater distribution, and an apparent absence of large craters. The morphology of some impact craters is...

Hiesinger, H.; Marchi, S.; Schmedemann, N.; Schenk, P.; Pasckert, J. H.; Neesemann, A.; O'Brien, D. P.; Kneissl, T.; Ermakov, A.; Fu, R.R.; Bland, M. T.; Nathues, A.; Platz, T.; Williams, D.A.; Jaumann, R.; Castillo-Rogez, J. C.; Ruesch, O.; Schmidt, B.; Park, R.S.; Preusker, F.; Buczkowski, D.L.; Russell, C.T.; Raymond, C.A.

Year Published: 2016

Detecting seasonal landslide movement within the Cascade landslide complex (Washington) using time-series SAR imagery

Detection of slow or limited landslide movement within broad areas of forested terrain has long been problematic, particularly for the Cascade landslide complex (Washington) located along the Columbia River Gorge. Although parts of the landslide complex have been found reactivated in recent years, the timing and magnitude of motion have not been...

Hu, Xie; Wang, Teng; Pierson, Thomas C.; Lu, Zhong; Kim, Jin-Woo; Cecere, Thomas H.
Hu, Xie, Wang, Teng, Pierson, T.C., Lu, Zhong, Kim, Jinwoo, and Cecere, Thomas, 2016, Detecting seasonal landslide movement within the Cascade landslide complex (Washington) using time-series SAR imagery: Remote Sensing of Environment, v. 187, p. 49–61.

Year Published: 2016

Global statistical maps of extreme-event magnetic observatory 1 min first differences in horizontal intensity

Analysis is made of the long-term statistics of three different measures of ground level, storm time geomagnetic activity: instantaneous 1 min first differences in horizontal intensity ΔBh, the root-mean-square of 10 consecutive 1 min differences S, and the ramp change R over 10 min. Geomagnetic latitude maps of the cumulative...

Love, Jeffrey J.; Coisson, Pierdavide; Pulkkinen, Antti

Year Published: 2016

Response comment: Carbon sequestration on Mars

Martian atmospheric pressure has important implications for the past and present habitability of the planet, including the timing and causes of environmental change. The ancient Martian surface is strewn with evidence for early water bound in minerals (e.g., Ehlmann and Edwards, 2014) and recorded in surface features such as large catastrophically...

Edwards, Christopher; Ehlmann, Bethany L.

Year Published: 2016

Transformations to granular zircon revealed: Twinning, reidite, and ZrO2 in shocked zircon from Meteor Crater (Arizona, USA)

Granular zircon in impact environments has long been recognized but remains poorly understood due to lack of experimental data to identify mechanisms involved in its genesis. Meteor Crater in Arizona (United States) contains abundant evidence of shock metamorphism, including shocked quartz, the high pressure polymorphs coesite and stishovite,...

Cavosie, Aaron; Timms, Nicholas E.; Erickson, Timmons M.; Hagerty, Justin J.; Hörz, Friedrich
Cavosie, A.J., Timms, N.E., Erickson, T.M., Hagerty, J.J., and Horz, F. (2016) Transformations to granular zircon revealed: Twinning, reidite, and ZrO2 in shocked zircon from Meteor Crater (Arizona, USA), Geology, 44, 703-706, doi:10.1130/G38043.1

Year Published: 2016

A possible source mechanism of the 1946 Unimak Alaska far-field tsunami, uplift of the mid-slope terrace above a splay fault zone

In 1946, megathrust seismicity along the Unimak segment of the Alaska subduction zone generated the largest ever recorded Alaska/Aleutian tsunami. The tsunami severely damaged Pacific islands and coastal areas from Alaska to Antarctica. It is the charter member of “tsunami” earthquakes that produce outsized far-field tsunamis for the recorded...

von Huene, Roland E.; Miller, John J.; Klaeschen, Dirk; Dartnell, Peter
von Huene, R., Miller, J.J., Klaeschen, D. et al. Pure Appl. Geophys. (2016) 173: 4189. https://doi.org/10.1007/s00024-016-1393-x

Year Published: 2016

Biogeomorphic classification and images of shorebird nesting sites on the U.S. Atlantic coast

Atlantic coast piping plover (Charadrius melodus) nest sites are typically found on low-lying beach and dune systems, which respond rapidly to coastal processes like sediment overwash, inlet formation, and island migration that are sensitive to climate-related changes in storminess and the rate of sea-level rise. Data were obtained to understand...

Sturdivant, Emily; Thieler, E. Robert; Zeigler, Sara; Winslow, Luke; Hines, Megan K.; Read, Jordan S.; Walker, Jordan I.
Sturdivant, E.J., Thieler, E.R., Zeigler, S.L., Winslow, L.A., Hines, M.K., Read, J.S., Walker, J.I., 2016, Biogeomorphic classification and images of shorebird nesting sites on the U.S. Atlantic coast: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F70V89X3.

Year Published: 2016

Continuity of the West Napa–Franklin fault zone inferred from guided waves generated by earthquakes following the 24 August 2014 Mw 6.0 South Napa earthquake

We measure peak ground velocities from fault‐zone guided waves (FZGWs), generated by on‐fault earthquakes associated with the 24 August 2014 Mw 6.0 South Napa earthquake. The data were recorded on three arrays deployed across north and south of the 2014 surface rupture. The observed FZGWs indicate that the West Napa fault zone (WNFZ) and...

Catchings, Rufus D.; Goldman, Mark R.; Li, Yong-Gang; Chan, Joanne H.

Year Published: 2016

Cryovolcanism on Ceres

Volcanic edifices are abundant on rocky bodies of the inner solar system. In the cold outer solar system, volcanism can occur on solid bodies with a water-ice shell, but derived cryovolcanic constructs have proved elusive. We report the discovery using Dawn Framing Camera images of a landform on dwarf planet Ceres, which we argue represents a...

Ruesch, O.; Platz, T.; Schenk, P.; McFadden, L.A.; Castillo-Rogez, J. C.; Quick, L. C.; Byrne, S.; Preusker, F.; O'Brien, D. P.; Schmedemann, N.; Williams, D.A.; Li, Jian-Yang; Bland, M. T.; Hiesinger, H.; Kneissl, T.; Neesemann, A.; Schaefer, M.; Pasckert, J. H.; Schmidt, B.E.; Buczkowski, D.L.; Sykes, M. V.; Nathues, A.; Roatsch, T.; Hoffman, M.; Raymond, C.A.; Russell, C.T.
Ruesch, Ottaviano, Platz, Thomas, Schenk, P., McFadden, Lucy, Castillo-Rogez, Julie C, Byrne, S, Preusker, Frank, O'Brien, D., Scmedemann, Nico, Williams, Dave, A, Li, J.-Y., Bland, M.T., Heisinger, H, Hiesinger, H., Kneissl, T., Neesemann, A., Schaefer, M., Pasckert, J.H., Schmidt, B.E., Buczkowski, D.L., Sykes, M.V., Nathues, A., Roatsch, T., Hoffmann, M., Raymond, C.A., and Russell, C.T., 2016, Cryovolcanism on Ceres:

Filter Total Items: 2,697
Aerial of lava channels feeding ocean entries
May 23, 2018

Kīlauea Volcano — Lava Channels Entering Sea

On May 23, 2018, the Hilo Civil Air Patrol captured this evening photograph of the coastline where lava flows are entering the sea. There are currently three primary ocean entry points, which have evolved over the course of the eruption.

May 23, 2018

USGS Status Update of Kīlauea Volcano - May 23, 2018

USGS Hawaiian Volcano Observatory status of Kilauea volcano in Hawaii on May 22, 2018.

Aerial of lava channels feeding ocean entries
May 23, 2018

Kīlauea Volcano — Lava Channels Feeding Ocean Entries

On Wednesday, May 23, the Hilo Civil Air Patrol conducted flights over the lower East Rift Zone eruption to assist USGS and Hawai‘i County Civil Defense Agency as they respond to the Kīlauea eruption. This image shows the scale of the lava channels feeding the ocean entries. Note that lava is overflowing the channels and is on top of slightly older, black lava flows. The

...
May 23, 2018

Kīlauea Volcano — Overflight of Lower East Rift Zone

Helicopter overflight of lower East Rift Zone ocean entry and fissure complex on May 23, 2018, around 8:00 AM HST.

Vegetation in foreground up on a beach bluff above flat beach with waves.
May 23, 2018

Sunset State Beach Video Camera 1 bright image

Two video cameras overlook the coast at Sunset State Beach in Watsonville, California. Camera 1 looks northwest while Camera 2 looks north. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes. The various imagery collected:

  • Snapshot: first frame of the video, just like a standard photo
  • Timex (time-exposure):
...
Vegetation in foreground up on a beach bluff above flat beach with waves.
May 23, 2018

Sunset State Beach Video Camera 1 dark image

Two video cameras overlook the coast at Sunset State Beach in Watsonville, California. Camera 1 looks northwest while Camera 2 looks north. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes. The various imagery collected:

  • Snapshot: first frame of the video, just like a standard photo
  • Timex (time-exposure):
...
Plume rising from crater
May 23, 2018

Kīlauea Volcano — Plume from Summit

Multiple explosions at Kīlauea's summit occurred throughout today, with some of the ash plumes rising 6,000 to 7,000 feet above sea level. HVO scientists keeping tabs

...
Coastal flowers in foreground up on a beach bluff above flat beach with waves gently lapping, sky is cloudy in the distance.
May 23, 2018

Sunset State Beach Video Camera 1 Snapshot

Image from video camera overlook the coast at Sunset State Beach in Watsonville, CA. Every half hour during daylight hours, the camera shoots video for 10 minutes. This snapshot is the first frame in the 10-minute sequence.

Vegetation in foreground up on a beach bluff above flat beach with waves.
May 23, 2018

Sunset State Beach Video Camera 1 snapshot

Two video cameras overlook the coast at Sunset State Beach in Watsonville, California. Camera 1 looks northwest while Camera 2 looks north. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes. The various imagery collected:

  • Snapshot: first frame of the video, just like a standard photo
  • Timex (time-exposure):
...
Telephoto view of plume rising from crater
May 23, 2018

Kīlauea Volcano — Plume from Summit (telephoto)

Multiple explosions at Kīlauea's summit occurred throughout today, with some of the ash plumes rising 6,000 to 7,000 feet above sea level. HVO scientists keeping tabs

...
Vegetation in foreground up on a beach bluff above flat beach with waves.
May 23, 2018

Sunset State Beach Video Camera 1 time-exposure

Two video cameras overlook the coast at Sunset State Beach in Watsonville, California. Camera 1 looks northwest while Camera 2 looks north. Every half hour during daylight hours, the cameras collect snapshots and video for 10 minutes. The various imagery collected:

  • Snapshot: first frame of the video, just like a standard photo
  • Timex (time-exposure):
...
Filter Total Items: 406
Date published: October 28, 2010

Earthquake Sensors Available to a Good Home

PASADENA, Calif. – The agency responsible for earthquake monitoring across the United States is looking for 35 volunteers in Southern California to host an earthquake sensor in their home.

Attribution: Natural Hazards
Date published: October 17, 2010

Haiti Earthquake Shaking Amplified by Local Landforms

PORT-AU-PRINCE, Haiti — The severe damage and loss-of-life caused by the devastating January 2010 M7.0 earthquake in Haiti was exacerbated by amplification of shaking due to local geological conditions and landforms in Port-au-Prince, according to a study published online today in Nature Geoscience.

Attribution: Natural Hazards
Date published: October 10, 2010

Unraveling Complexity of Haiti Quake Reveals Hidden Faults and Future Hazards

The January 2010 M7.0 earthquake that devastated Haiti’s economy and caused over 200,000 casualties also resulted in significant uplift of the ground surface along Haiti’s coastline, and involved slip on multiple faults, according to a study published online in Nature Geoscience.

Attribution: Natural Hazards
Date published: October 1, 2010

Global Consortium of Space Agencies to Meet at USGS

The U.S. Geological Survey will host the 24th Secretariat and Board meetings of the International Charter for Space and Major Disasters in Washington, D.C. on October 4-7, 2010.

Date published: September 29, 2010

Global Earthquake Alerts to Include Economic Loss and Casualty Information

Estimated economic loss and casualty information will now be included in earthquake alerts sent out by the U.S. Geological Survey (USGS) following significant earthquakes around the world. 

Attribution: Natural Hazards
Date published: September 28, 2010

Volcanic activity in Arabian Desert makes Case for Increased Monitoring

VANCOUVER, Wash. – Underground magma movement was the trigger of a swarm of 30,000 earthquakes in Saudi Arabia last year, according to a new study published in Nature Geoscience Sunday.

Attribution: Natural Hazards
Date published: August 25, 2010

An island’s rebirth: Life emerges after a catastrophic volcanic eruption

Anchorage, Alaska — A secluded island in the Aleutian chain is revealing secrets of how land and marine ecosystems react to and recover from a catastrophic volcanic eruption that appeared at first glance to destroy all life on the island.

Attribution: Natural Hazards
Date published: May 25, 2007

Media Advisory: USGS and Government of Afghanistan to Unveil Earthquake Hazards Assessment of Afghanistan

WASHINGTON, D.C. - On May 30, the Embassy of Afghanistan will host U.S. Geological Survey (USGS) officials as they unveil an earthquake hazards assessment of the Islamic Republic of Afghanistan.

Attribution: Natural Hazards
Date published: September 14, 2005

USGS Reports New Wetland Loss from Hurricane Katrina in Southeastern Louisiana

U.S. Geological Survey scientists report that preliminary analysis of satellite data indicate Hurricane Katrina caused substantial marsh loss in St. Bernard and Plaquemines parishes.

Attribution: Natural Hazards