Case No. #1564

Turkey, Cappadocia: 'Pulsating Underground Walls' Rock Liquefaction and Hardening Incident

Category: UnclassifiableResolution: UnexplainedLocation: Turkey / CappadociaRecorded: Sep 22, 2026, 7:14 AM

Summary

On July 19, 2023, an anomalous geological phenomenon was observed near the Derinkuyu underground city in the Cappadocia region of central Turkey. The rock walls of an underground passage abruptly began to liquefy into a jelly-like substance, only to transform immediately into an extremely rigid state. This phenomenon was witnessed multiple times by tourists and local residents, leading to structural changes that rendered some sections impassable. Initial investigations by authorities found no conventional geological explanation, and the mechanism of this transformation remains unexplained.

Details

On July 19, 2023, at 14:30, an official geological survey team exploring an un開放 area of the Derinkuyu underground city encountered an unforeseen event. They witnessed a seemingly normal rock wall suddenly undulate, appearing to flow like a viscous liquid. Simultaneously, a faint, bluish-white light intermittently emitted from within the rock, accompanied by an unsettling pulsating sensation.

Following the report of this strange phenomenon, numerous similar testimonies from the past emerged from the surrounding region. Local residents spoke of ancient legends of 'pulsating stones' in the underground, and historical texts described periods when 'the earth breathes and stones change form.' Several years prior, blurry footage captured by a tourist showed a wall surface distorting for a few seconds, though it was dismissed as an optical illusion at the time.

Authorities immediately reorganized the investigation team to conduct detailed observations and attempt sample collection at the site. However, the transformed rock exhibited an abnormal hardness, resisting standard geological tools, making collection exceedingly difficult. Analysis of the finally retrieved samples revealed a peculiar crystalline structure not aligning with known geological classifications, along with the presence of unknown mineral components. These could not have been formed through conventional rock formation processes.

Further investigation uncovered several contradictions. High-sensitivity sensors deployed at the site recorded specific ultra-low frequency vibrations during the phenomenon, but parts of the data inexplicably went missing immediately afterwards. Furthermore, despite no clear heat source being detected from the altered rock, an abnormal level of residual energy was found within it. This energy caused subtle electromagnetic interference in the surrounding environment. Authorities suggest this interference may have contributed to equipment malfunctions.

The liquefaction phenomenon has proven impossible to reproduce, and its transformation mechanism remains unknown. According to current geological understanding, it is inconceivable for rock to liquefy so rapidly and extensively, and then harden, without a clear external heat source or pressure. This incident suggests either an unknown geological process deep within the Earth or the involvement of another, undisclosed factor, making it a primary research objective for the authorities.

Currently, parts of the Derinkuyu underground city are sealed off, and authorities maintain a strict surveillance system. The potential impact of similar phenomena on other underground structures or geology is unknown, and concerns also exist regarding its effects on local groundwater systems and ecosystems. Authorities continue their persistent efforts to unravel the profound causes of this 'pulsating underground wall' phenomenon and maintain ongoing investigations.

Timeline

July 19, 2023, 14:30Rock wall liquefaction and internal luminescence first observed in an unexposed section of Derinkuyu underground city.
July 20, 2023, 09:00Initial investigation team arrived. Attempted to collect samples from altered rock wall but faced extreme difficulty due to abnormal hardness.
July 25, 2023, 11:00Multiple reports of similar past phenomena received from local residents; blurry footage provided by a tourist to authorities.
August 1, 2023, 16:00Initial analysis of collected rock samples revealed unique crystalline structures not fitting known geological classifications.
August 15, 2023, 10:00Portion of underground passage completely sealed off; long-term monitoring system established by authorities.

Witness Testimony

Witness A (Geological Surveyor)The wall undulated as if alive, becoming viscous. An eerie pale blue light seeped from within, making it unbearable to be there. What I saw defies reality.

Tourist BMy friend and I were walking through the underground city when suddenly the wall began to shake and melt into goo. I was too terrified to scream. It felt hot to the touch, but then instantly turned cold and hard as ice. An unbelievable experience.

Local Guide CTales of 'pulsating stones' in this underground have existed since ancient times. To see it become reality... parts of the passages are now impassable, and tourists will decrease. This could be the wrath of the underground gods.