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Natural Hazards

Every year in the United States, natural hazards threaten lives and livelihoods and result in billions of dollars in damage. We work with many partners to monitor, assess, and conduct targeted research on a wide range of natural hazards so that policymakers and the public have the understanding they need to enhance preparedness, response, and resilience.

News

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Mauna Loa Has Begun Erupting

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Changing Wave Dynamics in Arctic Alaska

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Using Distant Seismometers to Monitor and Analyze Volcanic Eruptions

Publications

Apophis specific action team report

This report about Asteroid (99942) Apophis's Earth close approach on April 13, 2029 was generated by a Specific Action Team (SAT) formed by the Small Body Assessment Group (SBAG) at the request of NASAs Planetary Science Division (PSD). The SAT assessed the current predictions for the effects that may occur due to the close encounter, evaluated observing capabilities, and identified possible inves

Climatic influence on the expression of strike-slip faulting

Earthquakes on strike-slip faults are preserved in the geomorphic record by offset landforms that span a range of displacements, from small offsets created in the most recent earthquake (MRE) to large offsets that record cumulative slip from multiple prior events. An exponential decay in the number of large cumulative offsets has been observed on many faults, and a leading hypothesis is that clima

Rock alteration mapping in and around fossil shallow intrusions at Mt. Ruapehu New Zealand with laboratory and aerial hyperspectral imaging

Diagnostic absorption features in hyperspectral data can be used to identify a specific mineral or mineral associations. However, it is unknown how accurate hyperspectral mapping can be for identifying alteration mineral compositions at the resolution required to describe structures such as fossil intrusions, or whether it can accurately quantify the alteration present. This study compared petrogr

Science

Using Distant Seismometers to Monitor and Analyze Volcanic Eruptions

Before a volcano erupts, there are typically precursory activities that can be detected on seismometers. Thus, monitoring volcanoes with nearby seismometers is a good way to know when a volcanic eruption may be imminent. Placing these instruments around every volcano is, however, not possible due to logistical constraints, nor is it necessary in many locations far away from a population center.
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Using Distant Seismometers to Monitor and Analyze Volcanic Eruptions

Before a volcano erupts, there are typically precursory activities that can be detected on seismometers. Thus, monitoring volcanoes with nearby seismometers is a good way to know when a volcanic eruption may be imminent. Placing these instruments around every volcano is, however, not possible due to logistical constraints, nor is it necessary in many locations far away from a population center.
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Photo Journal: GSN Field Engineers Visit the Northernmost Town in the World

In October 2022 GSN field engineers from the Albuquerque Seismic Lab visited the northernmost town in the world, Longyearbyen (Svalbard, Norway) on their way north to GSN station IU-KBS for a station upgrade. GSN station IU-KBS is located in Svalbard, a Norwegian archipelago.
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Photo Journal: GSN Field Engineers Visit the Northernmost Town in the World

In October 2022 GSN field engineers from the Albuquerque Seismic Lab visited the northernmost town in the world, Longyearbyen (Svalbard, Norway) on their way north to GSN station IU-KBS for a station upgrade. GSN station IU-KBS is located in Svalbard, a Norwegian archipelago.
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Earthquake Geology and Paleoseismology

The goals of USGS earthquake geology and paleoseismology research are 1) to make primary observations and develop ideas to improve our understanding of the geologic expression of active faulting, and 2) to acquire data that will improve the National Seismic Hazard Model. Geological research allows us to characterize faults, including the identification of secondary seismogenic structures, to study...
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Earthquake Geology and Paleoseismology

The goals of USGS earthquake geology and paleoseismology research are 1) to make primary observations and develop ideas to improve our understanding of the geologic expression of active faulting, and 2) to acquire data that will improve the National Seismic Hazard Model. Geological research allows us to characterize faults, including the identification of secondary seismogenic structures, to study...
Learn More