A study of over 40,000 written entries in Irish Annals and ice core measurements shows a strong correlation between the occurrence of volcanic eruptions and extreme cold weather in Ireland over a 1200 year period.
Haiti Earthquake Resources from IRIS
IRIS (Incorporated Research Institutions for Seismology) has posted a group of resources for educators about the Haiti earthquake.
A major earthquake occurred Tuesday in the boundary region separating the Caribbean plate and the North America plate. This plate boundary is dominated by left-lateral strike slip motion and compression, and accommodates about 20 mm/y slip, with the Caribbean plate moving eastward with respect to the North America plate.
IRIS (Incorporated Research Institutions for Seismology) has posted a group of resources for educators about the Haiti earthquake.
