The April 13, 1962 earthquake

M5.1near Bridgeport, California

A magnitude 5.1 earthquake 3.7 miles deep, centred in Mono County. The 382nd strongest in California’s record since 1900, and the strongest within 50 miles since a magnitude 5.1 on December 31, 1956.

The earthquake

Magnitude
5.1
local magnitude (ml)
Depth
3.7 mi
6.0 km below the surface
Local time
Friday, April 13, 1962
07:38 PST; 15:38 UTC
Epicentre
38.22°N, 119.46°W
In Mono County
In California’s record
382nd
strongest of 97,065 since 1900
Within 50 miles
12
counties; more on this date

USGS ANSS Comprehensive Earthquake Catalog, event ushis2544 (“19 km W of Bridgeport, California”). 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

Earthquakes around the epicentre

1,317 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: 4 1975: 6 1976: 4 1977: 3 1978: 22 1979: 46 1980: 116 1981: 44 1982: 18 1983: 73 1984: 14 1985: 4 1986: 14 1987: 10 1988: 5 1989: 10 1990: 34 1991: 54 1992: 17 1993: 29 1994: 183 183 1995: 36 1996: 33 1997: 78 1998: 11 1999: 5 2000: 15 2001: 10 2002: 7 2003: 5 2004: 61 2005: 10 2006: 7 2007: 8 2008: 3 2009: 3 2010: 14 2011: 57 2012: 4 2013: 9 2014: 5 2015: 11 2016: 31 2017: 19 2018: 1 2019: 2 2020: 47 2021: 82 2022: 13 2023: 8 2024: 9 2025: 2 19731978198319881993199820032008201320182023

Earlier earthquakes of magnitude 5 or more within 50 miles, strongest first

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