Natural hazard

natural hazardsnaturalhazardmulti-hazardnatural processes
A natural hazard is a natural phenomenon that might have a negative effect on humans or the environment.wikipedia
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Natural disaster

natural disastersnaturaldisaster
An example of the distinction between a natural hazard and a natural disaster is that the 1906 San Francisco earthquake was a disaster, whereas living on a fault line is a hazard.
A natural disaster is a major adverse event resulting from natural processes of the Earth; examples are floods, hurricanes, tornadoes, volcanic eruptions, earthquakes, tsunamis, and other geologic processes.

Geophysics

geophysicistgeophysicalgeophysicists
Natural hazard events can be classified into two broad categories: geophysical and biological.
Geophysics is applied to societal needs, such as mineral resources, mitigation of natural hazards and environmental protection.

Avalanche

avalanchesavalanchingavalanche research
An avalanche occurs when a large snow (or rock) mass slides down a mountainside.
In mountainous terrain, avalanches are among the most serious objective natural hazards to life and property, with their destructive capability resulting from their potential to carry enormous masses of snow at high speeds.

Human impact on the environment

anthropogenichuman activityhuman impacts
Some natural hazards can be provoked or affected by anthropogenic processes (e.g. land-use change, drainage and construction).
Natural hazards are excluded as a cause; however human activities can indirectly affect phenomena such as floods and bush fires.

Act of God

acts of GodAct of natureHand of God
In legal usage throughout the English-speaking world, an act of God is a natural hazard outside human control, such as an earthquake or tsunami, for which no person can be held responsible.

United States Geological Survey

USGSU.S. Geological SurveyUSGS 7.5' topographic map
The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it.

Social vulnerability

vulnerablevulnerabilityvulnerable groups
In its broadest sense, social vulnerability is one dimension of vulnerability to multiple stressors and shocks, including abuse, social exclusion and natural hazards.

Bushfire and Natural Hazards CRC

Bushfire and Natural Hazards Cooperative Research Centre
The Minister said the Bushfire and Natural Hazards CRC acknowledged the ongoing impacts of natural hazards upon communities, emergency service providers, governments, agriculture and other industries.

List of natural phenomena

natural phenomenanatural phenomenonforces of nature
A natural hazard is a natural phenomenon that might have a negative effect on humans or the environment.

Human

humanshuman beinghuman beings
A natural hazard is a natural phenomenon that might have a negative effect on humans or the environment.

Biophysical environment

environmentenvironmentalthe environment
A natural hazard is a natural phenomenon that might have a negative effect on humans or the environment.

Biology

biologicalBiological Sciencesbiologist
Natural hazard events can be classified into two broad categories: geophysical and biological.

1906 San Francisco earthquake

1906 earthquakeSan Francisco earthquakeSan Francisco earthquake of 1906
An example of the distinction between a natural hazard and a natural disaster is that the 1906 San Francisco earthquake was a disaster, whereas living on a fault line is a hazard.

Fault (geology)

faultfaultsstrike-slip
An example of the distinction between a natural hazard and a natural disaster is that the 1906 San Francisco earthquake was a disaster, whereas living on a fault line is a hazard.

Seismic wave

seismic wavesseismic velocitybody wave
Aeismic waves.

Earth

Earth's surfaceterrestrialworld
At the Earth's surface, earthquakes may manifest with a shaking or displacement of the ground; when the earthquake occurs on the seafloor, the resulting displacement of water can sometimes result in a tsunami.

Earthquake

earthquakesseismic activityseismic
At the Earth's surface, earthquakes may manifest with a shaking or displacement of the ground; when the earthquake occurs on the seafloor, the resulting displacement of water can sometimes result in a tsunami.

Tsunami

tsunamistidal waveseaquake
At the Earth's surface, earthquakes may manifest with a shaking or displacement of the ground; when the earthquake occurs on the seafloor, the resulting displacement of water can sometimes result in a tsunami.

Pacific Plate

PacificPacific tectonic platePacific crust
Most of the world's earthquakes (90%, and 81% of the largest) take place in the 40,000-km-long, horseshoe-shaped zone called the circum-Pacific seismic belt, also known as the Pacific Ring of Fire, which for the most part bounds the Pacific Plate.

Coastal erosion

beach erosionerosioneroded
Coastal erosion is a physical process by which shorelines in coastal areas around the world shift and change, primarily in response to waves and currents that can be influenced by tides and storm surge.

Beach evolution

coastal dynamicsModern recession of beachesreceded
Coastal erosion can result from long-term processes (see also beach evolution) as well as from episodic events such as tropical cyclones or other severe storm events.

Lahar

laharsmudflowsvolcanic mudflows
A lahar is a type of natural event closely related to a volcanic eruption, and involves a large amount of material originating from an eruption of a glaciated volcano, including mud from the melted ice, rock, and ash sliding down the side of the volcano at a rapid pace.

Types of volcanic eruptions

volcanic eruptioneruptionvolcanic eruptions
A lahar is a type of natural event closely related to a volcanic eruption, and involves a large amount of material originating from an eruption of a glaciated volcano, including mud from the melted ice, rock, and ash sliding down the side of the volcano at a rapid pace.

Rock (geology)

stonerockrocks
A lahar is a type of natural event closely related to a volcanic eruption, and involves a large amount of material originating from an eruption of a glaciated volcano, including mud from the melted ice, rock, and ash sliding down the side of the volcano at a rapid pace.

Volcanic ash

ashash cloudash fall
A lahar is a type of natural event closely related to a volcanic eruption, and involves a large amount of material originating from an eruption of a glaciated volcano, including mud from the melted ice, rock, and ash sliding down the side of the volcano at a rapid pace.