The August 14, 1955 earthquake

M5.7near Volcano, Hawaii

A magnitude 5.7 earthquake 18.0 miles deep, centred in Hawaii County. The 29th strongest in Hawaii’s record since 1900, and the strongest within 50 miles since a magnitude 6.1 on March 30, 1954.

The earthquake

Magnitude
5.7
local magnitude (ml)
Depth
18.0 mi
29.0 km below the surface
Local time
Sunday, August 14, 1955
02:28 HST; 12:28 UTC
Epicentre
19.31°N, 155.29°W
In Hawaii County
In Hawaii’s record
29th
strongest of 39,637 since 1900
Within 50 miles
1
county; more on this date

USGS ANSS Comprehensive Earthquake Catalog, event ushis2055 (“15 km SSW of Volcano, 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

Earthquakes around the epicentre

7,056 earthquakes of magnitude 3 or more within 50 miles of this epicentre since 1973.

Earthquakes of magnitude 3 or more within 50 miles of the epicentre, by year 1973: 111 1974: 194 1975: 501 1976: 291 1977: 209 1978: 139 1979: 165 1980: 181 1981: 170 1982: 152 1983: 156 1984: 80 1985: 59 1986: 59 1987: 54 1988: 58 1989: 54 1990: 64 1991: 52 1992: 52 1993: 23 1994: 21 1995: 17 1996: 247 1997: 104 1998: 155 1999: 66 2000: 20 2001: 27 2002: 13 2003: 24 2004: 24 2005: 30 2006: 20 2007: 36 2008: 16 2009: 20 2010: 18 2011: 42 2012: 35 2013: 31 2014: 21 2015: 48 2016: 61 2017: 45 2018: 2,133 2,133 2019: 59 2020: 125 2021: 159 2022: 211 2023: 130 2024: 213 2025: 61 19731978198319881993199820032008201320182023

Earlier earthquakes of magnitude 5 or more within 50 miles, strongest first

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