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Peak ground acceleration

Index Peak ground acceleration

Peak ground acceleration (PGA) is equal to the maximum ground acceleration that occurred during earthquake shaking at a location. [1]

48 relations: Acceleration, Accelerograph, April 2011 Miyagi earthquake, Building code, Earthquake, Earthquake engineering, Earthquake simulation, Earthquake zones of India, Euclidean vector, Frequency of exceedance, G-force, Gal (unit), Global Earthquake Model, Gravity of Earth, Great Hanshin earthquake, Hypocenter, Japan Meteorological Agency seismic intensity scale, June 2011 Christchurch earthquake, Mean, Mercalli intensity scale, Moment magnitude scale, Richter magnitude scale, Seismic hazard, Seismic loading, Seismic magnitude scales, Seismic risk, Seismometer, Sendai, Spectral acceleration, Strong ground motion, United States Geological Survey, 1960 Valdivia earthquake, 1964 Alaska earthquake, 1978 Miyagi earthquake, 1994 Northridge earthquake, 1999 Athens earthquake, 1999 Jiji earthquake, 2005 Zarand earthquake, 2007 Chūetsu offshore earthquake, 2008 Iwate–Miyagi Nairiku earthquake, 2010 Canterbury earthquake, 2010 Chile earthquake, 2010 Haiti earthquake, 2011 Christchurch earthquake, 2011 Lorca earthquake, 2011 Tōhoku earthquake and tsunami, 2016 Christchurch earthquake, 2016 Kaikoura earthquake.

Acceleration

In physics, acceleration is the rate of change of velocity of an object with respect to time.

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Accelerograph

An accelerograph can be referred to as a strong-motion instrument or seismograph, or simply an earthquake accelerometer.

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April 2011 Miyagi earthquake

The April 2011 Miyagi earthquake (Japanese) was a magnitude 7.1 Mw earthquake, with an epicentre off the coast of Miyagi Prefecture, approximately east of Sendai, Japan.

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Building code

A building code (also building control or building regulations) is a set of rules that specify the standards for constructed objects such as buildings and nonbuilding structures.

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Earthquake

An earthquake (also known as a quake, tremor or temblor) is the shaking of the surface of the Earth, resulting from the sudden release of energy in the Earth's lithosphere that creates seismic waves.

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Earthquake engineering

Earthquake engineering is an interdisciplinary branch of engineering that designs and analyzes structures, such as buildings and bridges, with earthquakes in mind.

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Earthquake simulation

Earthquake simulation applies a real or simulated vibrational input to a structure that possesses the essential features of a real seismic event.

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Earthquake zones of India

The Indian subcontinent has a history of devastating earthquakes.

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Euclidean vector

In mathematics, physics, and engineering, a Euclidean vector (sometimes called a geometric or spatial vector, or—as here—simply a vector) is a geometric object that has magnitude (or length) and direction.

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Frequency of exceedance

The frequency of exceedance, sometimes called the annual rate of exceedance, is the number of times in a certain period that a random process exceeds some critical value.

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G-force

The gravitational force, or more commonly, g-force, is a measurement of the type of acceleration that causes a perception of weight.

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Gal (unit)

The gal (symbol: Gal), sometimes called galileo after Galileo Galilei, is a unit of acceleration used extensively in the science of gravimetry.

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Global Earthquake Model

The Global Earthquake Model (GEM) is a public–private partnership initiated in 2006 by the Global Science Forum of the OECD to develop global, open-source risk assessment software and tools.

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Gravity of Earth

The gravity of Earth, which is denoted by, refers to the acceleration that is imparted to objects due to the distribution of mass within Earth.

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Great Hanshin earthquake

The, or Kobe earthquake, occurred on January 17, 1995 at 05:46:53 JST (January 16 at 20:46:53 UTC) in the southern part of Hyōgo Prefecture, Japan, known as Hanshin.

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Hypocenter

A hypocenter (or hypocentre) (from ὑπόκεντρον for 'below the center') is the point of origin of an earthquake or a subsurface nuclear explosion.

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Japan Meteorological Agency seismic intensity scale

The Japan Meteorological Agency seismic intensity scale is a seismic scale used in Japan to measure the intensity of earthquakes.

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June 2011 Christchurch earthquake

The June 2011 Christchurch earthquake was a shallow magnitude 6.3 ML earthquake that occurred on 13 June 2011 at 14:20 NZST (02:20 UTC).

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Mean

In mathematics, mean has several different definitions depending on the context.

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Mercalli intensity scale

The Mercalli intensity scale is a seismic intensity scale used for measuring the intensity of an earthquake.

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Moment magnitude scale

The moment magnitude scale (MMS; denoted as Mw or M) is one of many seismic magnitude scales used to measure the size of earthquakes.

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Richter magnitude scale

The so-called Richter magnitude scale – more accurately, Richter's magnitude scale, or just Richter magnitude – for measuring the strength ("size") of earthquakes refers to the original "magnitude scale" developed by Charles F. Richter and presented in his landmark 1935 paper, and later revised and renamed the Local magnitude scale, denoted as "ML" or "ML".

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Seismic hazard

A seismic hazard is the probability that an earthquake will occur in a given geographic area, within a given window of time, and with ground motion intensity exceeding a given threshold.

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Seismic loading

Seismic loading is one of the basic concepts of earthquake engineering which means application of an earthquake-generated agitation to a structure.

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Seismic magnitude scales

Seismic magnitude scales are used to describe the overall strength or "size" of an earthquake.

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Seismic risk

Seismic risk refers to the risk of damage from earthquake to a building, system, or other entity.

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Seismometer

A seismometer is an instrument that measures motion of the ground, caused by, for example, an earthquake, a volcanic eruption, or the use of explosives.

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Sendai

is the capital city of Miyagi Prefecture, Japan, the largest city in the Tōhoku region, and the second largest city north of Tokyo.

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Spectral acceleration

Spectral acceleration (SA) is a unit measured in g (the acceleration due to Earth's gravity, equivalent to g-force) that describes the maximum acceleration in an earthquake on an object – specifically a damped, harmonic oscillator moving in one physical dimension.

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Strong ground motion

Seismologists usually define strong ground motion as the strong earthquake shaking that occurs close to (less than about 50 km from) a causative fault.

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United States Geological Survey

The United States Geological Survey (USGS, formerly simply Geological Survey) is a scientific agency of the United States government.

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1960 Valdivia earthquake

The 1960 Valdivia earthquake (Terremoto de Valdivia) or Great Chilean earthquake (Gran terremoto de Chile) of 22 May is the most powerful earthquake ever recorded.

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1964 Alaska earthquake

The 1964 Alaskan earthquake, also known as the Great Alaskan earthquake and Good Friday earthquake, occurred at 5:36 PM AST on Good Friday, March 27.

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1978 Miyagi earthquake

The occurred at 17:14 local time (08:14 UTC) on 12 June.

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1994 Northridge earthquake

The 1994 Northridge earthquake occurred on January 17, at 4:30:55 a.m. PST and had its epicenter in Reseda, a neighborhood in the north-central San Fernando Valley region of Los Angeles, California, USA.

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1999 Athens earthquake

The 1999 Athens earthquake occurred on September 7 at near Mount Parnitha in Greece with a moment magnitude of 6.0 and a maximum Mercalli intensity of IX (Violent).

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1999 Jiji earthquake

The Jiji earthquake, known locally as the 921 earthquake, was a 7.3 Ms or 7.6–7.7 Mw earthquake which occurred in Jiji, Nantou County, Taiwan on Tuesday, 21 September 1999 at 01:47:12 local time.

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2005 Zarand earthquake

The 2005 Zarand earthquake affected several villages in the Kerman province of Iran on February 22 at.

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2007 Chūetsu offshore earthquake

The Chūetsu Offshore earthquake (平成19 年(2007 年)新潟県中越沖地震) was a powerful magnitude 6.6 earthquake that occurred 10:13 local time (01:13 UTC) on July 16, 2007, in the northwest Niigata region of Japan.

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2008 Iwate–Miyagi Nairiku earthquake

On June 14, the 2008 Iwate earthquake struck the Tōhoku region of northeastern Honshū in Japan.

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2010 Canterbury earthquake

The 2010 Canterbury earthquake (also known as the Darfield earthquake) struck the South Island of New Zealand with a moment magnitude of 7.1 at on, and had a maximum perceived intensity of X (Extreme) on the Mercalli intensity scale.

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2010 Chile earthquake

The 2010 Chile earthquake (Terremoto del 27F) occurred off the coast of central Chile on Saturday, 27 February at 03:34 local time (06:34 UTC), having a magnitude of 8.8 on the moment magnitude scale, with intense shaking lasting for about three minutes.

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2010 Haiti earthquake

The 2010 Haiti earthquake (Séisme de 2010 à Haïti; Tranblemanntè 12 janvye 2010 nan peyi Ayiti) was a catastrophic magnitude 7.0 Mw earthquake, with an epicenter near the town of Léogâne (Ouest), approximately west of Port-au-Prince, Haiti's capital.

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2011 Christchurch earthquake

A earthquake occurred in Christchurch on at 12:51 p.m. local time (23:51 UTC).

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2011 Lorca earthquake

The 2011 Lorca earthquake (Terremoto de Lorca de 2011) was a moderate 5.1 earthquake that occurred 6:47 p.m. CEST (16:47 UTC) on 11 May 2011, near the town of Lorca, causing significant localized damage in the Region of Murcia, Spain, and panic among locals, and displacing many from their homes.

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2011 Tōhoku earthquake and tsunami

The was a magnitude 9.0–9.1 (Mw) undersea megathrust earthquake off the coast of Japan that occurred at 14:46 JST (05:46 UTC) on Friday 11 March 2011, with the epicentre approximately east of the Oshika Peninsula of Tōhoku and the hypocenter at an underwater depth of approximately.

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2016 Christchurch earthquake

An earthquake occurred in Christchurch on 14 February 2016 at 1:13 p.m. local time (00:13 UTC) and initially recorded as 5.9 on the Richter scale, but subsequently reviewed as 5.7.

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2016 Kaikoura earthquake

The 2016 Kaikoura earthquake was a magnitude 7.8 (Mw) earthquake in the South Island of New Zealand that occurred two minutes after midnight on 14 November 2016 NZDT (11:02 on 13 November UTC).

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Redirects here:

Design basis earthquake ground motion, Ground acceleration, Ground peak acceleration, Instrumental Intensity, Instrumental intensity, Peak Ground Acceleration.

References

[1] https://en.wikipedia.org/wiki/Peak_ground_acceleration

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