The June 16, 1940 earthquake
M6.4near Honomu, Hawaii
A magnitude 6.4 earthquake 9.3 miles deep, 42.5 miles off Hawaii County. The 8th strongest in Hawaii’s record since 1900, and the strongest within 50 miles in the catalogue, which runs from 1900.
The earthquake
- Magnitude
- 6.4
- moment magnitude (mw)
- Depth
- 9.3 mi
- 15.0 km below the surface
- Local time
- Sunday, June 16, 1940
- 23:56 HST; 10:26 UTC on Jun 17, 1940
- In Hawaii’s record
- 8th
- strongest of 39,637 since 1900
USGS ANSS Comprehensive Earthquake Catalog, event iscgem901435 (“71 km ENE of Honomu, Hawaii”). 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
- Hawaii CountyHI · 42.5 mi
Earthquakes around the epicentre
83 earthquakes of magnitude 3 or more within 50 miles of this epicentre since 1973.
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.