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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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Explore Deep-sea Data Along the Pacific Coast with EXPRESS Data Viewer

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Magnitude 5.9 Earthquake in Khōst, Afghanistan

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The temblor that changed earthquake science turns 30

Publications

Planetary geologic mapping protocol—2022

This publication is temporarily unavailable.

Enumerating plausible multifault ruptures in complex fault systems with physical constraints

We propose a new model for determining the set of plausible multifault ruptures in an interconnected fault system. We improve upon the rules used in the Third Uniform California Earthquake Rupture Forecast (UCERF3) to increase connectivity and the physical consistency of ruptures. We replace UCERF3’s simple azimuth change rules with new Coulomb favorability metrics and increase the maximum jump di

Mapping a magnetic superstorm: March 1989 geoelectric hazards and impacts on United States power systems

A study is made of the relationships between geomagnetic and geoelectric field variation, Earth-surface impedance, and operational interference (anomalies) experienced on electric-power systems across the contiguous United States during the March 13-14, 1989 magnetic storm. For this, a 1-minute-resolution sequence of geomagnetic field maps is constructed from magnetometer time series acquired at g

Science

Puerto Rico Hazards | Los peligros de Puerto Rico

The island of Puerto Rico is subject to numerous threats from natural hazards, including hurricanes, landslides, earthquakes, tsunamis, coastal and inland flooding, environmental contaminants, and freshwater scarcity, among others. USGS science can help citizens better prepare for, mitigate, and adapt to these hazards. This website compiles USGS resources available for Puerto Rico to provide...
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Puerto Rico Hazards | Los peligros de Puerto Rico

The island of Puerto Rico is subject to numerous threats from natural hazards, including hurricanes, landslides, earthquakes, tsunamis, coastal and inland flooding, environmental contaminants, and freshwater scarcity, among others. USGS science can help citizens better prepare for, mitigate, and adapt to these hazards. This website compiles USGS resources available for Puerto Rico to provide...
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Puerto Rico Hazards: Ecosystems and Environmental Contaminants | Los peligros de Puerto Rico: Los ecosistemas y los contaminantes ambientales

USGS researchers have studied environmental contaminants and pathogens to address questions involving exposure pathways and human-health implications. They also study climate change impacts and ecosystem health. Explore the news and information related to ecosystems and environmental health research in Puerto Rico, including contaminants in tap water, and possible human exposures. Investigadores...
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Puerto Rico Hazards: Ecosystems and Environmental Contaminants | Los peligros de Puerto Rico: Los ecosistemas y los contaminantes ambientales

USGS researchers have studied environmental contaminants and pathogens to address questions involving exposure pathways and human-health implications. They also study climate change impacts and ecosystem health. Explore the news and information related to ecosystems and environmental health research in Puerto Rico, including contaminants in tap water, and possible human exposures. Investigadores...
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Puerto Rico Hazards: Earthquakes | Los peligros de Puerto Rico: Los terremotos

USGS provides real-time earthquake data, information on historic earthquakes, resources for the most significant earthquakes, and seismicity and ground motions to support future updates to the seismic hazard models for Puerto Rico and the U.S. Virgin Islands. Our seismic research can help establish better building regulations that mitigate earthquake risks and improve public safety. The Earthquake...
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Puerto Rico Hazards: Earthquakes | Los peligros de Puerto Rico: Los terremotos

USGS provides real-time earthquake data, information on historic earthquakes, resources for the most significant earthquakes, and seismicity and ground motions to support future updates to the seismic hazard models for Puerto Rico and the U.S. Virgin Islands. Our seismic research can help establish better building regulations that mitigate earthquake risks and improve public safety. The Earthquake...
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