The April 18, 1928 earthquake
M5.2near Channel Islands Beach, California
A magnitude 5.2 earthquake, 5.7 miles off Ventura County. The 328th 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
- as reported (uk)
- Depth
- —
- Not recorded
- Local time
- Wednesday, April 18, 1928
- 13:40 PST; 21:40 UTC
- In California’s record
- 328th
- strongest of 97,065 since 1900
USGS ANSS Comprehensive Earthquake Catalog, event ushis785 (“9 km SW of Channel Islands Beach, 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
- Ventura CountyCA · 5.7 mi
- Santa Barbara CountyCA · 13.4 mi
- Los Angeles CountyCA · 20.6 mi
- Kern CountyCA · 49.5 mi
Cities, largest first
- OxnardCA · 8.7 mi
- Simi ValleyCA · 33.6 mi
- Thousand OaksCA · 25.2 mi
- VenturaCA · 11.9 mi
- Santa MonicaCA · 46.3 mi
- Santa BarbaraCA · 31.6 mi
- CamarilloCA · 17.5 mi
- MoorparkCA · 27.4 mi
- GoletaCA · 39.4 mi
- Santa PaulaCA · 22.1 mi
- CalabasasCA · 36.3 mi
- Port HuenemeCA · 7.0 mi
Earthquakes around the epicentre
821 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
- June 29, 1925M6.8
- October 22, 1916M5.5
- February 18, 1926M5.5
- June 29, 1926M5.5
- August 4, 1927M5.3
USGS ANSS Comprehensive Earthquake Catalog. Local time is the time zone of the county nearest the epicentre. Magnitudes are as the catalogue reports them.