Brian Franklin Atwater (born September 18, 1951) is a

geologist A geologist is a scientist who studies the solid, liquid, and gaseous matter that constitutes Earth and other terrestrial planets, as well as the processes that shape them. Geologists usually study geology, earth science, or geophysics, althou ...

who works for the

United States Geological Survey The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, ...

and is also a research professor at the

University of Washington The University of Washington (UW, simply Washington, or informally U-Dub) is a public research university in Seattle, Washington. Founded in 1861, Washington is one of the oldest universities on the West Coast; it was established in Seatt ...

Career

Atwater has spent much of his career studying the likelihood of large

earthquake An earthquake (also known as a quake, tremor or temblor) is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves. Earthquakes can range in intensity, fr ...

s and

tsunami A tsunami ( ; from ja, 津波, lit=harbour wave, ) is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake. Earthquakes, volcanic eruptions and other underwater exp ...

s in the

Pacific Northwest The Pacific Northwest (sometimes Cascadia, or simply abbreviated as PNW) is a geographic region in western North America bounded by its coastal waters of the Pacific Ocean to the west and, loosely, by the Rocky Mountains to the east. Thou ...

region of North America. In 2005, he published a book with others, "The Orphan Tsunami of 1700," that summarizes the evidence for an 8.7–9.2 megathrust earthquake in the Pacific Northwest on 26 January 1700, known as the

1700 Cascadia earthquake The 1700 Cascadia earthquake occurred along the Cascadia subduction zone on January 26, 1700, with an estimated moment magnitude of 8.7–9.2. The megathrust earthquake involved the Juan de Fuca Plate from mid- Vancouver Island, south along th ...

. The earthquake produced a tsunami so large that contemporary reports in

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the n ...

noted it, allowing Atwater's team to assign a precise date and approximate magnitude to the earthquake. Its occurrence and size are confirmed by evidence of a dramatic drop in the elevation of Northwest coastal land, recorded by buried marsh and forest soils that underlie tidal sediment, the deposition of a layer of tsunami sand on the subsided landscape, the death or injury of affected trees (see

dendrochronology Dendrochronology (or tree-ring dating) is the scientific method of dating tree rings (also called growth rings) to the exact year they were formed. As well as dating them, this can give data for dendroclimatology, the study of climate and atm ...

), and descriptions of the earthquake and tsunami in regional

Amerindian The Indigenous peoples of the Americas are the inhabitants of the Americas before the arrival of the European settlers in the 15th century, and the ethnic groups who now identify themselves with those peoples. Many Indigenous peoples of the A ...

legends.

Other works

Atwater has also authored various supporting papers about earthquakes around the

Pacific Rim The Pacific Rim comprises the lands around the rim of the Pacific Ocean. The '' Pacific Basin'' includes the Pacific Rim and the islands in the Pacific Ocean. The Pacific Rim roughly overlaps with the geologic Pacific Ring of Fire. List of ...

and about other geological topics including great glacial floods in

Washington state Washington (), officially the State of Washington, is a U.S. state, state in the Northwestern United States, Pacific Northwest region of the Western United States. Named for George Washington—the first President of the United States, U.S. p ...

, and the natural history of

San Francisco Bay San Francisco Bay is a large tidal estuary in the U.S. state of California, and gives its name to the San Francisco Bay Area. It is dominated by the big cities of San Francisco, San Jose, and Oakland. San Francisco Bay drains water f ...

. In 2006 he began reconnaissance geologic mapping in coastal

Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Gui ...

, part of the ground-truth sleuthing needed to develop a " Smart System" for protecting

Indian Ocean The Indian Ocean is the third-largest of the world's five oceanic divisions, covering or ~19.8% of the water on Earth's surface. It is bounded by Asia to the north, Africa to the west and Australia to the east. To the south it is bounded by ...

communities from future

s. In 2015, Atwater appeared, as a geologist, in the PBS documentary film, ''

Making North America ''Making North America'' is a 2015 American documentary film which premiered nationwide on November 4, 2015. The PBS Nova film, comprising three episodes of one hour each, was hosted by Kirk Johnson (Director of the Smithsonian National Museum of ...

''.

Education

Atwater was born in

New Britain, Connecticut New Britain is a city in Hartford County, Connecticut, United States. It is located approximately southwest of Hartford. According to 2020 Census, the population of the city is 74,135. Among the southernmost of the communities encompassed wi ...

, and educated at

Northfield Mount Hermon Northfield Mount Hermon School, often called NMH, is a co-educational preparatory school in Gill, Massachusetts, in the United States. It is a member of the Eight Schools Association. Present day NMH offers nearly 200 courses, including AP and ...

, a boarding school in

Gill, Massachusetts Gill is a town in Franklin County, Massachusetts, United States. The population was 1,551 at the 2020 census. It is part of the Springfield, Massachusetts Metropolitan Statistical Area. The campus of Northfield Mount Hermon School is located in ...

. He received his bachelor’s and master’s degrees in geology at Stanford University, where he began working for the

U.S. Geological Survey The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and ...

, while dabbling in political activism. Atwater received his PhD from the

University of Delaware The University of Delaware (colloquially UD or Delaware) is a public land-grant research university located in Newark, Delaware. UD is the largest university in Delaware. It offers three associate's programs, 148 bachelor's programs, 121 ma ...

Publications

Ancient Processes At The Site Of Southern San Francisco Bay: Movement Of The Crust And Changes In Sea Level
–

(1979) *
Pleistocene glacial-lake deposits of the Sanpoil River valley, northeastern Washington
– USGS Bulletin No. 1661 (1986)
The Orphan Tsunami of 1700—Japanese Clues to a Parent Earthquake in North America
–

Professional Paper No. 1707 (2005)

References

External links

Unearthing Proof of a Tsunami in the Northwest
– National Public Radio podcast with gallery, May 4, 2005
Massive Tsunami Hit Pacific Northwest in 18th Century
– National Public Radio podcast initial report, January 2, 2005

– ''Time'' {{DEFAULTSORT:Atwater, Brian American geologists 20th-century American geologists 21st-century American geologists 1951 births Living people United States Geological Survey personnel Stanford University School of Earth, Energy & Environmental Sciences alumni University of Delaware alumni University of Washington faculty Northfield Mount Hermon School alumni