Sea-level changes before large earthquakes

Earthquake Information Bulletin (USGS)


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Changes in sea level have long been used as a measure of local uplift and subsidence associated with large earthquakes. For instance, in 1835, the British naturalist Charles Darwin observed that sea level dropped by 2.7 meters during the large earthquake in Concepcion, CHile. From this piece of evidence and the terraces along the beach that he saw, Darwin concluded that the Andes had grown to their present height through earthquakes. Much more recently, George Plafker and James C. Savage of the U.S Geological Survey have shown, from barnacle lines, that the great 1960 Chile and the 1964 Alaska earthquakes caused several meters of vertical displacement of the shoreline. 

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Sea-level changes before large earthquakes
Series title Earthquake Information Bulletin (USGS)
Volume 10
Issue 5
Year Published 1978
Language English
Publisher U.S Geological Survey
Description 4 p.
First page 165
Last page 168
Online Only (Y/N) N
Additional Online Files (Y/N) N