The August 30, 1930 earthquake
M5.2near Las Flores, California
A magnitude 5.2 earthquake 9.3 miles deep, 5.7 miles off Los Angeles County. The 305th strongest in California’s record since 1900, and the strongest within 50 miles since a magnitude 5.3 on August 4, 1927.
The earthquake
- Magnitude
- 5.2
- surface-wave magnitude (ms)
- Depth
- 9.3 mi
- 15.0 km below the surface
- Local time
- Saturday, August 30, 1930
- 16:40 PST; 00:40 UTC on Aug 31, 1930
- In California’s record
- 305th
- strongest of 97,065 since 1900
USGS ANSS Comprehensive Earthquake Catalog, event ushis850 (“1 km SW of Las Flores, 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
- Los Angeles CountyCA · 5.7 mi
- Ventura CountyCA · 9.7 mi
- Orange CountyCA · 35.8 mi
- Santa Barbara CountyCA · 43.5 mi
- San Bernardino CountyCA · 48.3 mi
Cities, largest first
- Los AngelesCA · 13.3 mi
- Long BeachCA · 32.2 mi
- Santa AnaCA · 48.1 mi
- Santa ClaritaCA · 27.9 mi
- OxnardCA · 34.3 mi
- Huntington BeachCA · 43.3 mi
- GlendaleCA · 25.0 mi
- Garden GroveCA · 42.8 mi
- PalmdaleCA · 49.4 mi
- FullertonCA · 42.2 mi
- TorranceCA · 21.4 mi
- OrangeCA · 47.9 mi
Earthquakes around the epicentre
1,123 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
- February 18, 1926M5.5
- August 4, 1927M5.3
- April 18, 1928M5.2
USGS ANSS Comprehensive Earthquake Catalog. Local time is the time zone of the county nearest the epicentre. Magnitudes are as the catalogue reports them.