Robert I. Tilling (shortened to Bob Tilling; born 1935) is a

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, ...

and

volcanologist A volcanologist, or volcano scientist, is a geologist who focuses on understanding the formation and eruptive activity of volcanoes. Volcanologists frequently visit volcanoes, sometimes active ones, to observe and monitor volcanic eruptions, col ...

who served as the scientist-in-charge of the

Hawaiian Volcano Observatory The Hawaiian Volcano Observatory (HVO) is an agency of the United States Geological Survey (USGS) and one of five volcano observatories operating under the USGS Volcano Hazards Program. Based in Hilo, Hawaii on the Island of Hawaii, the obser ...

from 1975 to 1976. Tilling worked for the

U.S. Geological Survey The United States Geological Survey (USGS), founded as the Geological Survey, is an agency of the U.S. Department of the Interior whose work spans the disciplines of biology, geography, geology, and hydrology. The agency was founded on March ...

(USGS), and became an ''

emeritus ''Emeritus/Emerita'' () is an honorary title granted to someone who retires from a position of distinction, most commonly an academic faculty position, but is allowed to continue using the previous title, as in "professor emeritus". In some c ...

'' in 2004. He was born in

Shanghai Shanghai, Shanghainese: , Standard Chinese pronunciation: is a direct-administered municipality and the most populous urban area in China. The city is located on the Chinese shoreline on the southern estuary of the Yangtze River, with the ...

, and did not arrive in the U.S. until 1946. After moving to the U.S., he grew up near

San Diego San Diego ( , ) is a city on the Pacific coast of Southern California, adjacent to the Mexico–United States border. With a population of over 1.4 million, it is the List of United States cities by population, eighth-most populous city in t ...

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

. Tilling attended both

Pomona College Pomona College ( ) is a private university, private Liberal arts colleges in the United States, liberal arts college in Claremont, California. It was established in 1887 by a group of Congregationalism in the United States, Congregationalists ...

(

B.A. A Bachelor of Arts (abbreviated B.A., BA, A.B. or AB; from the Latin ', ', or ') is the holder of a bachelor's degree awarded for an undergraduate program in the liberal arts, or, in some cases, other disciplines. A Bachelor of Arts degree ...

) and

Yale University Yale University is a Private university, private Ivy League research university in New Haven, Connecticut, United States. Founded in 1701, Yale is the List of Colonial Colleges, third-oldest institution of higher education in the United Stat ...

(

Ph.D. A Doctor of Philosophy (PhD, DPhil; or ) is a terminal degree that usually denotes the highest level of academic achievement in a given discipline and is awarded following a course of graduate study and original research. The name of the deg ...

), and joined the U.S. Geological Survey in 1962. In 1971, he worked for

NASA The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the federal government of the United States, US federal government responsible for the United States ...

's lunar sample program. His service with the U.S. Geological Survey included four years at the Hawaiian Volcano Observatory, with a stint as head scientist. After his tenure there, he left to work for the USGS out of

Reston, Virginia Reston is a census-designated place in Fairfax County, Virginia, United States, and a principal city of both Northern Virginia and the Washington metropolitan area. As of the 2020 U.S. census, Reston's population was 63,226. Founded in 1964, Rest ...

. Tilling also coordinated responses to the

1980 eruption of Mount St. Helens In March 1980, a series of volcanic explosions and pyroclastic flows began at Mount St. Helens in Skamania County, Washington, United States. A series of Phreatic eruption, phreatic blasts occurred from the summit and escalated until a major ...

; following the eruption, he spoke before

Congress A congress is a formal meeting of the representatives of different countries, constituent states, organizations, trade unions, political parties, or other groups. The term originated in Late Middle English to denote an encounter (meeting of ...

, stating that consequent eruptions may occur, though they would likely not be as powerful than the original blast. In 1996, he won the Distinguished Public Service Medal of the

Mineralogical Society of America The Mineralogical Society of America (MSA) is a scientific membership organization. MSA was founded in 1919 for the advancement of mineralogy, crystallography, geochemistry, and petrology, and promotion of their uses in other sciences, industry, ...

. Tilling was also formerly a

consultant A consultant (from "to deliberate") is a professional (also known as ''expert'', ''specialist'', see variations of meaning below) who provides advice or services in an area of specialization (generally to medium or large-size corporations). Cons ...

to the

Indonesian government The term Government of the Republic of Indonesia (, GOI, sometimes also referred to as Government of Indonesia or the Central Government () especially in laws) can have a number of different meanings. At its widest, it can refer collectively ...

on volcanic hazards. During his scientific career, he published over 350 papers on

geoscience Earth science or geoscience includes all fields of natural science related to the planet Earth. This is a branch of science dealing with the physical, chemical, and biological complex constitutions and synergistic linkages of Earth's four spheres ...

, for audiences both scientific and general, including in ''

Scientific American ''Scientific American'', informally abbreviated ''SciAm'' or sometimes ''SA'', is an American popular science magazine. Many scientists, including Albert Einstein and Nikola Tesla, have contributed articles to it, with more than 150 Nobel Pri ...

'' and ''

Nature Nature is an inherent character or constitution, particularly of the Ecosphere (planetary), ecosphere or the universe as a whole. In this general sense nature refers to the Scientific law, laws, elements and phenomenon, phenomena of the physic ...

''.

References

Living people 1935 births Scientists from Shanghai Scientists from San Diego 20th-century geologists American volcanologists United States Geological Survey personnel Pomona College alumni Yale University alumni Nationality missing {{Geologist-stub