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The June 22, 1915 earthquake

M5.9The 1915 Imperial Valley, California Earthquakes (Second Major Event)

A magnitude 5.9 earthquake, centred in Imperial County. The 90th strongest in California’s record since 1900, and the strongest within 50 miles since a magnitude 6.0 on June 22, 1915.

The earthquake

Magnitude
5.9
moment magnitude (mw)
Depth
—
Not recorded
Local time
Tuesday, June 22, 1915
20:56 PST; 04:56 UTC on Jun 23, 1915
Epicentre
32.80°N, 115.50°W
In Imperial County
In California’s record
90th
strongest of 97,065 since 1900
Within 50 miles
3
counties; more on this date

USGS ANSS Comprehensive Earthquake Catalog, event ushis572 (“The 1915 Imperial Valley, California Earthquakes (Second Major Event)”). 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

4,054 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: 35 1974: 25 1975: 79 1976: 86 1977: 59 1978: 44 1979: 290 1980: 53 1981: 42 1982: 19 1983: 35 1984: 20 1985: 17 1986: 40 1987: 249 1988: 57 1989: 59 1990: 40 1991: 29 1992: 25 1993: 55 1994: 19 1995: 12 1996: 14 1997: 35 1998: 22 1999: 77 2000: 53 2001: 15 2002: 94 2003: 28 2004: 28 2005: 71 2006: 77 2007: 37 2008: 115 2009: 95 2010: 1,126 1,126 2011: 76 2012: 123 2013: 56 2014: 27 2015: 22 2016: 56 2017: 27 2018: 22 2019: 23 2020: 109 2021: 84 2022: 26 2023: 39 2024: 67 2025: 21 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.