Engineering English
Peak Ground Acceleration
Civil Engineering · Last updated: July 30, 2026 · How this entry was written
Definition: The maximum acceleration experienced by the ground during an earthquake. It is a key parameter for characterizing seismic hazard and is used in structural design to determine seismic forces.
Example in context
“The structural engineer used the peak ground acceleration from the site-specific seismic hazard analysis to design the building's lateral force-resisting system.”
“Yapı mühendisi, binanın yanal kuvvet direnç sistemini tasarlamak için sahaya özgü sismik tehlike analizinden elde edilen en yüksek zemin ivmesini kullandı.”
Where engineers use it
Peak ground acceleration (PGA) is a critical input in seismic hazard analysis and structural design. Engineers use PGA values from building codes or site-specific studies to calculate base shear and design ductile detailing in earthquake-resistant structures.
Synonyms: PGA
Practice: can you use “Peak Ground Acceleration” at work?
You are reviewing a site seismic hazard report. The client asks why peak ground acceleration is a more relevant parameter than magnitude for design. Explain its role in structural engineering.
Show a model answer
“The peak ground acceleration must be determined for the seismic design of this structure.”
“Peak Ground Acceleration” in 21 languages
| English | Peak Ground Acceleration |
|---|---|
| Turkish | En Yüksek Zemin İvmesi |
| French | Accélération maximale du sol |
| German | Spitzenbodenbeschleunigung |
| Spanish | Aceleración máxima del suelo |
| Chinese | 峰值地面加速度 |
| Arabic | أقصى تسارع للأرض |
| Portuguese | Aceleração máxima do solo |
| Russian | Пиковое ускорение грунта |
| Japanese | 最大地動加速度 |
| Italian | Accelerazione massima al suolo |
| Vietnamese | Gia tốc nền cực đại |
| Hindi | शिखर भूमि त्वरण |
| Thai | ความเร่งสูงสุดของพื้นดิน |
| Indonesian | Percepatan Tanah Puncak |
| Korean | 최대 지반 가속도 |
| Bengali | পিক গ্রাউন্ড এক্সিলারেশন |
| Dutch | Piekgrondversnelling |
| Swedish | Maximal markacceleration |
| Finnish | Huippumaakiihtyvyys |
| Ukrainian | Пікове прискорення ґрунту |
Frequently asked questions
What does Peak Ground Acceleration mean in engineering?
The maximum acceleration experienced by the ground during an earthquake. It is a key parameter for characterizing seismic hazard and is used in structural design to determine seismic forces. In Civil Engineering, the term carries a usage-frequency rating of 10/10 in the Engineering English library.
How do you pronounce Peak Ground Acceleration?
Peak Ground Acceleration is pronounced /piːk ɡraʊnd ækˌsɛləˈreɪʃən/ (IPA). The Engineering English app plays audio for the term and checks your pronunciation with speech recognition.
How is Peak Ground Acceleration used in a sentence?
Example from an engineering context: “The structural engineer used the peak ground acceleration from the site-specific seismic hazard analysis to design the building's lateral force-resisting system.”
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