The July 7, 1963 earthquake

M5.0near Nephi, Utah

A magnitude 5.0 earthquake 6.2 miles deep, centred in Juab County. The 21st strongest in Utah’s record since 1900, and the strongest within 50 miles in the catalogue, which runs from 1900.

The earthquake

Magnitude
5.0
moment magnitude (mw)
Depth
6.2 mi
10.0 km below the surface
Local time
Sunday, July 7, 1963
12:20 MST; 19:20 UTC
Epicentre
39.70°N, 111.87°W
In Juab County
In Utah’s record
21st
strongest of 2,224 since 1900
Within 50 miles
10
counties; more on this date

USGS ANSS Comprehensive Earthquake Catalog, event iscgem872679 (“3 km WSW of Nephi, Utah”). The USGS event page carries the ShakeMap, felt reports and the official summary.

Counties and cities within 50 miles

Distance from the epicentre to each county boundary (zero when inside) and to each city centre.

Counties

Cities, largest first

Earthquakes around the epicentre

88 earthquakes of magnitude 3 or more within 50 miles of this epicentre since 1973.

Earthquakes of magnitude 3 or more within 50 miles of the epicentre, by year 1973: 1 1974: 0 1975: 1 1976: 1 1977: 1 1978: 1 1979: 1 1980: 2 1981: 2 1982: 0 1983: 1 1984: 2 1985: 1 1986: 6 1987: 6 1988: 3 1989: 1 1990: 7 7 1991: 5 1992: 5 1993: 4 1994: 2 1995: 2 1996: 0 1997: 2 1998: 0 1999: 0 2000: 1 2001: 1 2002: 1 2003: 6 2004: 3 2005: 3 2006: 0 2007: 1 2008: 0 2009: 0 2010: 0 2011: 4 2012: 3 2013: 0 2014: 4 2015: 0 2016: 0 2017: 0 2018: 1 2019: 0 2020: 0 2021: 1 2022: 0 2023: 0 2024: 1 2025: 1 19731978198319881993199820032008201320182023

No earlier earthquake of magnitude 5 or more within 50 miles in the catalogue since 1900.

USGS ANSS Comprehensive Earthquake Catalog. Local time is the time zone of the county nearest the epicentre. Magnitudes are as the catalogue reports them.