Buried rupture earthquake
In seismology, a buried rupture earthquake, or blind earthquake, is an earthquake which does not produce a visible offset in the ground along the fault (as opposed to a surface rupture earthquake, which does). When the fault in question is a thrust fault, the earthquake is known as a blind thrust earthquake.
Ground motion
[edit]Recorded ground motions of large surface-rupture earthquakes are weaker than the ground motions from buried rupture earthquakes.[1]
Depth
[edit]The asperity for a buried rupture earthquakes is in area deeper than roughly 5 kilometres (3.1 mi). Examples are the Loma Prieta earthquake, Northridge earthquake, and the Noto Hanto earthquake.[2]
Tsunamis
[edit]As compared to the seabed surface rupture case, uplifted water outside the fault plane in buried rupture earthquakes makes for large tsunami waves.[3]
See also
[edit]References
[edit]- ^ a b c "Observed differences in ground motions" (PDF). IJR. Retrieved 30 October 2018.
- ^ Wada, K; Goto, H. "Generation Mechanism of Surface and Buried Faults Considering the Effect of Plasticity in a Shallow Crust Structure" (PDF). iitk.ac.in. Retrieved 31 October 2018.
- ^ Goda, Katsuichiro (October 2015). "Effects of Seabed Surface Rupture Versus Buried Rupture on Tsunami Wave Modeling: A Case Study for the 2011 Tohoku, Japan, Earthquake". Bulletin of the Seismological Society of America. 105 (5): 2563–2571. Bibcode:2015BuSSA.105.2563G. doi:10.1785/0120150091. hdl:1983/ab80d036-71a5-45e6-a26c-180964d589f4. Retrieved 29 October 2018.
External links
[edit]
Media related to Buried rupture earthquakes at Wikimedia Commons- Differences in ground motion and fault rupture process between the surface and buried rupture earthquakes
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