The May 12, 1916 earthquake

M5.3Western Idaho

A magnitude 5.3 earthquake, centred in Washington County. The 12th strongest in Idaho’s record since 1900, and the strongest within 50 miles in the catalogue, which runs from 1900.

The earthquake

Magnitude
5.3
as reported (uk)
Depth
—
Not recorded
Local time
Friday, May 12, 1916
18:26 PST; 02:26 UTC on May 13, 1916
Epicentre
44.20°N, 116.50°W
In Washington County
In Idaho’s record
12th
strongest of 3,958 since 1900
Within 50 miles
12
counties; more on this date

USGS ANSS Comprehensive Earthquake Catalog, event ushis590 (“Western Idaho”). 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

65 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: 0 1974: 0 1975: 0 1976: 1 1977: 1 1978: 1 1979: 0 1980: 0 1981: 2 1982: 0 1983: 2 1984: 0 1985: 0 1986: 2 1987: 0 1988: 1 1989: 2 1990: 0 1991: 1 1992: 0 1993: 0 1994: 1 1995: 3 1996: 0 1997: 0 1998: 0 1999: 1 2000: 5 2001: 1 2002: 5 2003: 0 2004: 2 2005: 12 12 2006: 0 2007: 1 2008: 0 2009: 2 2010: 1 2011: 0 2012: 0 2013: 1 2014: 1 2015: 0 2016: 0 2017: 0 2018: 0 2019: 0 2020: 0 2021: 2 2022: 2 2023: 1 2024: 11 2025: 0 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.