The July 28, 2017 earthquake
M5.1near Indianola, California
A magnitude 5.1 earthquake 16.5 miles deep, 46.0 miles off Humboldt County. The 415th strongest in California’s record since 1900, and the strongest within 50 miles since a magnitude 5.7 on January 28, 2015.
The earthquake
- Magnitude
- 5.1
- moment magnitude (mw)
- Depth
- 16.5 mi
- 26.5 km below the surface
- Local time
- Friday, July 28, 2017
- 17:02 PDT; 00:02 UTC on Jul 29, 2017
- In California’s record
- 415th
- strongest of 97,065 since 1900
USGS ANSS Comprehensive Earthquake Catalog, event nc72852151 (“80 km W of Indianola, 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
- Humboldt CountyCA · 46.0 mi
Earthquakes around the epicentre
1,899 earthquakes of magnitude 3 or more within 50 miles of this epicentre since 1973.
Earlier earthquakes of magnitude 5 or more within 50 miles, strongest first
- January 22, 1923M7.1
- March 9, 2014M6.8
- February 9, 1941M6.8
- April 26, 1992M6.6
- January 9, 2010M6.5
- July 14, 1918M6.5
- October 3, 1941M6.5
- April 26, 1992M6.5
- June 6, 1932M6.5
- April 23, 1906M6.4
USGS ANSS Comprehensive Earthquake Catalog. Local time is the time zone of the county nearest the epicentre. Magnitudes are as the catalogue reports them.