Clarence Roderic Allen (February 15, 1925 – January 21, 2021) was an American

geologist A geologist is a scientist who studies the structure, composition, and History of Earth, history of Earth. Geologists incorporate techniques from physics, chemistry, biology, mathematics, and geography to perform research in the Field research, ...

who studied

seismology Seismology (; from Ancient Greek σεισμός (''seismós'') meaning "earthquake" and -λογία (''-logía'') meaning "study of") is the scientific study of earthquakes (or generally, quakes) and the generation and propagation of elastic ...

Career

He was a graduate of

Reed College Reed College is a Private college, private Liberal arts colleges in the United States, liberal arts college in Portland, Oregon, United States. Founded in 1908, Reed is a residential college with a campus in the Eastmoreland, Portland, Oregon, E ...

(B.A., 1949) and the

California Institute of Technology The California Institute of Technology (branded as Caltech) is a private research university in Pasadena, California, United States. The university is responsible for many modern scientific advancements and is among a small group of institutes ...

(M.S., 1951; Ph.D., 1954). Allen was President of the

Seismological Society of America The Seismological Society of America (SSA) is an international Learned society, scientific society devoted to the advancement of seismology and the understanding of earthquakes for the benefit of society. Founded in 1906, the society has members ...

in 1975 and the

Geological Society of America The Geological Society of America (GSA) is a nonprofit organization dedicated to the advancement of the geosciences. History The society was founded in Ithaca, New York, in 1888 by Alexander Winchell, John J. Stevenson, Charles H. Hi ...

. He was a member of the

American Association for the Advancement of Science The American Association for the Advancement of Science (AAAS) is a United States–based international nonprofit with the stated mission of promoting cooperation among scientists, defending scientific freedom, encouraging scientific responsib ...

, the

American Geophysical Union The American Geophysical Union (AGU) is a 501(c)(3) nonprofit organization of Earth, Atmospheric science, atmospheric, Oceanography, ocean, Hydrology, hydrologic, Astronomy, space, and Planetary science, planetary scientists and enthusiasts that ...

, and the

. He was elected a Fellow of the

American Academy of Arts and Sciences The American Academy of Arts and Sciences (The Academy) is one of the oldest learned societies in the United States. It was founded in 1780 during the American Revolution by John Adams, John Hancock, James Bowdoin, Andrew Oliver, and other ...

in 1975. Allen was a member of the

National Academy of Sciences The National Academy of Sciences (NAS) is a United States nonprofit, NGO, non-governmental organization. NAS is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Engineering (NAE) and the ...

and the

National Academy of Engineering The National Academy of Engineering (NAE) is an American Nonprofit organization, nonprofit, NGO, non-governmental organization. It is part of the National Academies of Sciences, Engineering, and Medicine (NASEM), along with the National Academ ...

since 1976. Allen received the first G.K. Gilbert Award in Seismic Geology and in 1995 he received the Medal of the Seismological Society of America. He was a member of the faculty of the

since 1955. He became a professor emeritus there in 1990. Allan died on January 21, 2021, at the age of 95.Clarence Allen, 1925–2021
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Publications

* ''"Geology of Earthquakes"'' with Robert S. Yeats and Kerry E. Sieh. Oxford University Press (1997) * ''"Comparative study of the neotectonics of the Xianshuihe fault, China"'' (1987) * ''"Continuation of creep and strain studies in southern California"'' (1984) * ''"Creep and strain studies in southern California: Final technical report"'' (1986) * ''"Seismicity of the Southern California Region, 1 January 1932 to 31 December 1972"'' with John M. Nordquist and James A. Hileman (1973) * ''"Active faulting in northern Turkey"'' (1969) * ''"Agua Blanca fault: A major transverse structure of northern Baja California, Mexico"'' (1960)

Career

Publications

References

Further reading