The September 20, 1908 earthquake

M6.7Island of Hawai`i, Hawaii

A magnitude 6.7 earthquake, centred in Hawaii County. The 4th strongest in Hawaii’s record since 1900, and the strongest within 50 miles in the catalogue, which runs from 1900.

The earthquake

Magnitude: 6.7; moment magnitude (mw)
Depth: —; Not recorded
Local time: Sunday, September 20, 1908; 20:05 HST; 06:35 UTC on Sep 21, 1908
Epicentre: 19.35°N, 155.02°W; In Hawaii County
In Hawaii’s record: 4th; strongest of 39,637 since 1900
Within 50 miles: 1; county; more on this date

USGS ANSS Comprehensive Earthquake Catalog, event official19080921063700000 (“Island of Hawai`i, 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 · inside

Earthquakes around the epicentre

6,849 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

May 3, 1905M6.2
April 4, 1904M5.3

USGS ANSS Comprehensive Earthquake Catalog. Local time is the time zone of the county nearest the epicentre. Magnitudes are as the catalogue reports them.