Volume 2, Issue 4, December 2014, Pages: 47-50
Received: Dec. 7, 2014;
Accepted: Dec. 24, 2014;
Published: Jan. 4, 2015
Views 3045 Downloads 204
Sung-Ho Na, Space Geodetic Observation Center, Sejong and University of Science and Technology, Daejeon, Republic of Korea
Tae-Woong Chung, Energy and Mineral Resources Engineering, Sejong University, Seoul, Republic of Korea
Dork Sahagian, Earth and Environmental Sciences, Lehigh University, Bethlehem, PA, USA
The Little Ice Age possibly released many shallow earthquakes in Korea and other places of the Earth. Decrease of temperature penetrates into hundreds meters deep into the Earth’s crust when its surface temperature is kept low for centuries. The resultant reduction of hydrostatic pressure in the crust can trigger earthquakes. According to historical records in Korea, comparatively much more earthquakes occurred in 1500s, 1600s, and 1700s. Near surface earthquakes among those could have been triggered by low temperature of the same periods.
Did the Little Ice Age Release Earthquakes, Science Discovery.
Vol. 2, No. 4,
2014, pp. 47-50.
F. Matthes, “Reports of Committee on Glaciers,” Transaction of American Geophysical Union, vol. 20, pp. 518-535, 1939.
Wikipedia, Little Ice Age, text with references & links. (http://en.wikipedia.org/wiki/Little_Ice_Age)
M. E. Mann et. al, “Global Signatures and Dynamical Origins of the Little Ice Age and Medieval Climate Anomaly,” Science, vol. 326, pp. 1256-1260, 2009.
K. Lee, W. Yang, “Historical Seismicity of Korea,” Bulletin of Seismological Society of America, vol. 96, pp. 846-855, 2006.
S. Na, D. Sahagian, P. Park, T. Chung, T. Kang, “Time series analysis of global/Korean earthquake occurrence and recent GPS crustal displacement recorded at Daejeon, Korea,” Science Discovery, vol.1, pp. 6-15, 2013.
Y. Lee, H. C. Kim, Y. Song, “A Review on the Paleoclimate Change Inferred from Borehole Temperatures,” Economic Environmental Geology, vol. 39, 95-102, 2006. (in Korean)
D. L. Turcotte, G. Schubert, Geodynamics: Application of Continuum Physics to Geological Problems, John Wiley & Sons, New York, 1982.
B. J. Skinner, “Thermal Expansion,” Section 6 of Handbook of Physical Constants – Revised Edition, The Geological Society of America Memoir 97, 1966.
W. Janach, “Failure of Granite under Compression,” International Journal of Rock Mechanics, vol. 14, pp. 209-215, 1977.
J. C. Jaeger, N. G. W. Cook, Fundamentals of Rock Mechanics, Methuen, London, 1969.
Effective cooling can be regarded to have started around at the end of the Medieval Warm Period (A.D. 1200).