Speleoseismology and Tectonic Activity Assessment

Speleoseismology is an emerging discipline that exploits cave environments and their mineral deposits as natural recorders of seismic and tectonic processes. The sheltered conditions within karst systems preserve damage patterns in speleothems—stalagmites, stalactites and flowstones—and constrain the maximum ground motions experienced over geological timescales. By combining structural mapping of fractures, morphometric analysis of cave passageways and geochronological techniques, researchers can reconstruct the timing, magnitude and frequency of past seismic events. This approach complements traditional palaeoseismological methods by providing high-resolution archives that are often immune to surface erosion and anthropogenic disturbance. Mechanistic understanding of speleothem response to dynamic loads, including resonance behaviour and eigenmode analysis, underpins quantitative estimates of peak ground acceleration. Moreover, the orientation and displacement of cave conduits, when correlated with regional stress fields, yield insights into neotectonic regimes and fault activity. The integration of speleoseismology with probabilistic seismic hazard assessments enhances our ability to gauge long-term seismic risk in moderate to low-hazard regions. Globally, this methodology has been applied across diverse tectonic settings—from stable continental interiors to active fault zones—demonstrating its utility for unravelling earthquake chronologies, refining seismic source models and informing hazard mitigation strategies.

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Speleoseismology and Tectonic Activity Assessment publication trend

The graph below shows the total number of articles in speleoseismology and tectonic activity assessment across all publications each year (not limited to Nature Index journals).

Technical terms

Speleoseismology: Study of seismic and tectonic processes using cave environments and their mineral deposits as natural recorders.

Speleothem: Secondary mineral deposit in caves, such as stalagmites and stalactites, formed by precipitation of minerals from water.

U-series dating: Radiometric dating method based on the decay of uranium isotopes to determine the age of carbonate deposits.

Co-seismic deformation: Structural changes in geological or speleothem features that occur during an earthquake.

Ground-motion model: Computational simulation of seismic wave propagation used to estimate peak ground accelerations and displacements.

Speleogenesis: The process of cave formation and development influenced by geological and hydrological factors.

References

1. Damaged Speleothems and Collapsed Karst Chambers Indicate Paleoseismicity of the NE Bohemian Massif (Niedźwiedzia Cave, Poland). Tectonics (2021).
2. Co-seismic deformation of the 2017 Mw 6.6 Bodrum–Kos earthquake in speleothems of Korakia Cave (Pserimos, Dodecanese, Greece). Geomorphology (2022).
3. Characterizing Stalagmites’ Eigenfrequencies by Combining In Situ Vibration Measurements and Finite Element Modeling Based on 3D Scans. Geosciences (2020).
4. Evaluating the Relation of Cave Passage Formation to Stress-Field: Spatio-Temporal Correlation of Speleogenesis with Active Tectonics in Asprorema Cave (Mt. Pinovo, Greece). Geosciences (2024).