Noted U.S. seismologist: 1900-85 (7 letters) — Crossword Helper

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The Clue

Noted U.S. seismologist: 1900-85 (7 letter answer)

The Answer

RICHTER

Tags

1900 developer name noted richter scale seismologist seismology us

Notes

The answer RICHTER is rarely seen, appearing only about once every 2400 puzzles.

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___ scale
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Noted U.S. seismologist