The February 20, 1976 earthquake
M5.1near H?w?, Hawaii
A magnitude 5.1 earthquake 11.9 miles deep, 12.2 miles off Hawaii County. The 79th strongest in Hawaii’s record since 1900, and the strongest within 50 miles since a magnitude 6.6 on January 22, 1938.
The earthquake
- Magnitude
- 5.1
- local magnitude (ml)
- Depth
- 11.9 mi
- 19.1 km below the surface
- Local time
- Friday, February 20, 1976
- 19:51 HST; 05:51 UTC on Feb 21, 1976
- In Hawaii’s record
- 79th
- strongest of 39,637 since 1900
USGS ANSS Comprehensive Earthquake Catalog, event hv19760500 (“24 km WNW of H?w?, 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 · 12.2 mi
- Maui CountyHI · 19.3 mi
Earthquakes around the epicentre
625 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, 1938M6.6
- October 5, 1929M6.5
- March 19, 1926M6.0
- September 25, 1929M5.8
- June 4, 1904M5.6
- September 25, 1929M5.6
- October 13, 1912M5.0
USGS ANSS Comprehensive Earthquake Catalog. Local time is the time zone of the county nearest the epicentre. Magnitudes are as the catalogue reports them.