Peak ground acceleration

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Notion

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Science and technology

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What Wikipedia says

Peak ground acceleration (PGA) is equal to the maximum ground acceleration that occurred during earthquake shaking at a location. PGA is equal to the amplitude of the largest absolute acceleration recorded on an accelerogram at a site during a particular earthquake.

Excerpt from the Wikipedia article “Peak ground acceleration”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Shustov, Public domain, via Wikimedia Commons.