"Emphasis was usually put on the horizontal acceleration factor, for the simple reason that ordinary structures have a built-in safety factor for the vertical component; that is, gravity"
About this Quote
The wit is in how casually he demystifies a field that the public associates with terror and spectacle. “For the simple reason” pretends this is obvious, almost pedestrian. Then he drops the kicker: the safety factor is “gravity.” It’s a scientist’s joke, but it’s also an epistemological stance. Richter is arguing that risk isn’t just about measuring forces; it’s about understanding what systems quietly assume. Gravity is constant, predictable, and omnipresent, so it gets designed around. Earthquakes are intermittent and directionally chaotic, so they slip through the seams of convention.
Context matters: Richter helped standardize how we quantify earthquakes, and this quote reflects the pragmatic bridge between seismology and structural engineering. He’s pointing to a bias embedded in practice - not ideological, but infrastructural. The subtext is a warning against confusing “normal” with “safe.” We prepare obsessively for what everyday life rehearses; disasters exploit what everyday life lets us ignore.
Quote Details
| Topic | Engineer |
|---|---|
| Source | Help us find the source |
| Cite |
Citation Formats
APA Style (7th ed.)
Richter, Charles Francis. (2026, January 15). Emphasis was usually put on the horizontal acceleration factor, for the simple reason that ordinary structures have a built-in safety factor for the vertical component; that is, gravity. FixQuotes. https://fixquotes.com/quotes/emphasis-was-usually-put-on-the-horizontal-145614/
Chicago Style
Richter, Charles Francis. "Emphasis was usually put on the horizontal acceleration factor, for the simple reason that ordinary structures have a built-in safety factor for the vertical component; that is, gravity." FixQuotes. January 15, 2026. https://fixquotes.com/quotes/emphasis-was-usually-put-on-the-horizontal-145614/.
MLA Style (9th ed.)
"Emphasis was usually put on the horizontal acceleration factor, for the simple reason that ordinary structures have a built-in safety factor for the vertical component; that is, gravity." FixQuotes, 15 Jan. 2026, https://fixquotes.com/quotes/emphasis-was-usually-put-on-the-horizontal-145614/. Accessed 12 Feb. 2026.











