The April 19, 1910 earthquake

M5.4Near Butte, Montana

A magnitude 5.4 earthquake, centred in Silver Bow County. The 16th strongest in Montana’s record since 1900, and the strongest within 50 miles in the catalogue, which runs from 1900.

The earthquake

Magnitude
5.4
as reported (uk)
Depth
—
Not recorded
Local time
Tuesday, April 19, 1910
01:30 MST; 08:30 UTC
Epicentre
46.00°N, 112.50°W
In Silver Bow County
In Montana’s record
16th
strongest of 1,459 since 1900
Within 50 miles
11
counties; more on this date

USGS ANSS Comprehensive Earthquake Catalog, event ushis502 (“Near Butte, Montana”). 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

138 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: 1 1976: 4 1977: 6 1978: 1 1979: 2 1980: 4 1981: 0 1982: 1 1983: 2 1984: 2 1985: 0 1986: 9 1987: 11 1988: 1 1989: 1 1990: 2 1991: 0 1992: 0 1993: 0 1994: 0 1995: 6 1996: 0 1997: 2 1998: 1 1999: 0 2000: 0 2001: 1 2002: 3 2003: 0 2004: 6 2005: 26 26 2006: 9 2007: 4 2008: 3 2009: 6 2010: 1 2011: 1 2012: 2 2013: 2 2014: 1 2015: 1 2016: 5 2017: 5 2018: 2 2019: 0 2020: 0 2021: 2 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.