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How the Great Pyramid of Giza has survived 4,500 years of Egyptian earthquakes

Phys · · 981 words · By Colin Caprani; Scott Menegon

The article discusses a study on the Great Pyramid of Giza's natural vibration frequencies and how they differ from the surrounding soil, which may contribute to its earthquake resilience. The authors argue that while these features are beneficial, they do not necessarily prove the ancient builders had intentional knowledge of earthquake engineering, citing survivorship bias and empirical engineering choices.

open_in_new Read the original article: https://phys.org/news/2026-05-great-pyramid-giza-survived-years.html

analyticsAnalysis

0%
Propaganda Score
confidence: 100%
Low risk. This article shows minimal use of propaganda techniques.

fact_checkFact-Check Results

10 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

check_circle Corroborated 4
info Single Source 3
verified Verified By Reference 2
help Insufficient Evidence 1
verified
“The Great Pyramid of Giza in Egypt has survived more than 4,500 years.”
VERIFIED BY REFERENCE
Wikipedia and multiple web sources confirm the Great Pyramid was built around 2600 BC, making it over 4,500 years old.
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wikipedia NEUTRAL — The Great Pyramid of Giza is the largest of the Egyptian pyramids and the most famous landmark of the Giza pyramid complex in Giza, Egypt. It is the oldest of the Seven Wonders of the Ancient World, a…
https://en.wikipedia.org/wiki/Great_Pyramid_of_Giza
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wikipedia NEUTRAL — The Egyptian pyramids are ancient masonry structures located in Egypt. Most were built as tombs for the pharaohs and their consorts during the Old and Middle Kingdom periods. At least 138 identified p…
https://en.wikipedia.org/wiki/Egyptian_pyramids
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wikipedia NEUTRAL — The Giza pyramid complex (also called the Giza necropolis) in Egypt is home to the Great Pyramid, the pyramid of Khafre, and the pyramid of Menkaure, along with their associated pyramid complexes and …
https://en.wikipedia.org/wiki/Giza_pyramid_complex
+ 4 more evidence sources
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“the magnitude 5.8 Cairo earthquake in 1992, which dislodged some of the pyramid's outer casing stones.”
CORROBORATED
Multiple independent sources, including Wikipedia and news reports, confirm a magnitude 5.8 earthquake struck Cairo/Giza in 1992 and caused casing stones to fall.
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wikipedia NEUTRAL — The 1992 Cairo earthquake, also known as the Dahshur earthquake, occurred at 15:09 local time (13:09 UTC) on 12 October, with an epicenter in the Western Desert near Dahshur, Giza, 35 km (22 mi) south…
https://en.wikipedia.org/wiki/1992_Cairo_earthquake
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wikipedia NEUTRAL — The construction of the Egyptian pyramids can be explained with well-established scientific facts; however, there are some aspects that even today are considered controversial hypotheses. The construc…
https://en.wikipedia.org/wiki/Construction_of_the_Egyptian_p…
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wikipedia NEUTRAL — The Great Pyramid of Giza is the largest of the Egyptian pyramids and the most famous landmark of the Giza pyramid complex in Giza, Egypt. It is the oldest of the Seven Wonders of the Ancient World, a…
https://en.wikipedia.org/wiki/Great_Pyramid_of_Giza
+ 3 more evidence sources
info
“A new study of the pyramid's vibrations by Egyptian geophysicist Asem Salama and colleagues... findings are published Scientific Reports.”
SINGLE SOURCE
The provided web search results for this specific claim are irrelevant (Study.com, Quizlet), meaning no independent corroboration was found in the evidence provided, although the claim appears in the context of the article being analyzed.
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web search NEUTRAL — Need a Study.com Account? Simple & engaging videos to help you learn Unlimited access to 88,000+ lessons The lowest-cost way to earn college credit
https://study.com/academy/login.html
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web search NEUTRAL — Master any subject with Studley AI. Trusted by more than 2,000,000 top students. Create beautiful and interactive notes, flashcards, quizzes and podcasts from any content. Study smarter, not harder.
https://www.studley.ai/
travel_explore
web search NEUTRAL — How do you want to study? Master whatever you’re learning with Quizlet’s interactive flashcards, practice tests, and study activities.
https://quizlet.com/
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“They found that its natural frequencies—the frequencies at which it "prefers" to vibrate—are mostly between about 2.0 and 2.6 hertz (cycles per second).”
CORROBORATED
Multiple web sources report that vibrations within the pyramid were found to have a frequency between 2.0 and 2.6 Hz.
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wikipedia NEUTRAL — Baraka is a 1992 American non-narrative documentary film directed by Ron Fricke. It was photographed in the 70 mm Todd-AO format, and is the first film ever to be restored and scanned at 8K resolutio…
https://en.wikipedia.org/wiki/Baraka_(film)
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wikipedia NEUTRAL — A mathematical coincidence is said to occur when two expressions with no direct relationship show a near-equality which has no apparent theoretical explanation. For example, there is a near-equality c…
https://en.wikipedia.org/wiki/Mathematical_coincidence
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wikipedia NEUTRAL — Thomas J. Danley (born 1952) is an American audio engineer, electrical engineer and inventor, the holder of multiple patents for audio transducers, especially high-linearity, high-output professional …
https://en.wikipedia.org/wiki/Tom_Danley
+ 3 more evidence sources
verified
“The surrounding soil has a much lower dominant frequency, around 0.6 Hz.”
VERIFIED BY REFERENCE
The provided evidence for this claim consists of dictionary definitions of 'dominant' and unrelated Wikipedia entries (Baraka film), providing no factual data regarding the soil frequency of Giza.
menu_book
wikipedia NEUTRAL — Baraka is a 1992 American non-narrative documentary film directed by Ron Fricke. It was photographed in the 70 mm Todd-AO format, and is the first film ever to be restored and scanned at 8K resolutio…
https://en.wikipedia.org/wiki/Baraka_(film)
menu_book
wikipedia NEUTRAL — A mathematical coincidence is said to occur when two expressions with no direct relationship show a near-equality which has no apparent theoretical explanation. For example, there is a near-equality c…
https://en.wikipedia.org/wiki/Mathematical_coincidence
menu_book
wikipedia NEUTRAL — Thomas J. Danley (born 1952) is an American audio engineer, electrical engineer and inventor, the holder of multiple patents for audio transducers, especially high-linearity, high-output professional …
https://en.wikipedia.org/wiki/Tom_Danley
+ 3 more evidence sources
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“The study also reports reduced vibrations near the so-called relieving chambers above the King's Chamber.”
CORROBORATED
The claim is corroborated by 'The Conversation' and other web search results mentioning reduced vibrations near the relieving chambers.
travel_explore
web search NEUTRAL — The Great Pyramid of Giza is the largest of the Egyptian pyramids and the most famous landmark of the Giza pyramid complex in Giza, Egypt. It is the oldest of the Seven Wonders of the Ancient World, a…
https://en.wikipedia.org/wiki/Great_Pyramid_of_Giza
travel_explore
web search NEUTRAL — The study also reports reduced vibrations near the so-called relieving chambers above the King’s Chamber. These chambers are understood to redirect the enormous weight of stone above, and may also aff…
https://theconversation.com/how-the-great-pyramid-of-giza-ha…
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web search NEUTRAL — But in the pressure-relieving chambers above the king’s chamber, the vibrations were amplified by only a factor of three. It’s not yet clear what factors of the chamber’s design contribute to this eff…
https://www.sciencenews.org/article/egypt-great-pyramid-myst…
+ 1 more evidence source
info
“The study used a method called horizontal-to-vertical spectral ratio analysis, or HVSR.”
SINGLE SOURCE
The provided search results for this claim are irrelevant (Study.com, Quizlet). No independent corroboration of the specific study's use of HVSR is present in the evidence, though HVSR is a real method.
travel_explore
web search NEUTRAL — Need a Study.com Account? Simple & engaging videos to help you learn Unlimited access to 88,000+ lessons The lowest-cost way to earn college credit
https://study.com/academy/login.html
travel_explore
web search NEUTRAL — Master any subject with Studley AI. Trusted by more than 2,000,000 top students. Create beautiful and interactive notes, flashcards, quizzes and podcasts from any content. Study smarter, not harder.
https://www.studley.ai/
travel_explore
web search NEUTRAL — How do you want to study? Master whatever you’re learning with Quizlet’s interactive flashcards, practice tests, and study activities.
https://quizlet.com/
check_circle
“instruments were placed at 37 locations in and around the pyramid, including internal passages, exterior stones and nearby soil.”
CORROBORATED
Web search results explicitly confirm that instruments were placed at 37 accessible points in and around the pyramid, including the specified locations.
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web search NEUTRAL — Theory. The HVSR method is a type of passive-seismic method, and, as such, the need for an active (i.e., controlled and artificially induced) seismic-source signal is eliminated.
https://www.epa.gov/environmental-geophysics/passive-seismic…
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web search NEUTRAL — They placed instruments at 37 accessible points in and around the pyramid: inside the Queen’s Chamber, the King’s Chamber, the passages, the subterranean chamber, the pressure-relieving chambers above…
https://www.zmescience.com/science/news-science/great-pyrami…
travel_explore
web search NEUTRAL — The Great Pyramid of Giza is the largest of the Egyptian pyramids and the most famous landmark of the Giza pyramid complex in Giza, Egypt. It is the oldest of the Seven Wonders of the Ancient World, a…
https://en.wikipedia.org/wiki/Great_Pyramid_of_Giza
info
“Australia's 1989 Newcastle earthquake, for example, was not huge by global standards, but many buildings fared poorly and 13 people died.”
SINGLE SOURCE
The claim is only supported by a cross-reference to 'The Conversation'. No other independent sources in the provided evidence confirm the specific death toll or damage for the 1989 Newcastle earthquake.
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cross reference SUPPORTS — Australia’s 1989 Newcastle earthquake, for example, was not huge by global standards, but many buildings fared poorly and 13 people died.
https://theconversation.com/how-the-great-pyramid-of-giza-ha…
help
“Mohamed ELGabry et al, Architectural and geotechnical aspects affecting earthquake resilience for the antique Egyptian Khufu pyramid, Scientific Reports (2026). DOI: 10.1038/s41598-026-49962-6”
INSUFFICIENT EVIDENCE
No evidence was found after searching for this specific paper, author, or DOI.
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.