Home › 1984 › California

M6.7 earthquake, California, 1984-09-10

MagnitudeM6.7mw

This page is updated only once a day and is not an alert service. For current earthquake and tsunami information, check the Japan Meteorological Agency, the USGS and your local authorities.

Depth10 km

Time (UTC)1984-09-10 03:14

Rank in 198425 / 133among M6+

Rank since 19002870 / 14,458

Energy vs an M6×11approx.

217 km W of Ferndale, California · 40.50, -126.83

M6.5+ within 300 km (largest first)

1922 M7.4M7.4

2005 M7.2M7.2

1980 M7.2M7.2

1992 M7.2M7.2

1923 M7.1M7.1

1994 M7.1M7.1

1991 M7.0M7.0

2024 M7.0M7.0

1991 M6.9M6.9

1954 M6.8M6.8

2014 M6.8M6.8

1941 M6.8M6.8

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M7.2 1980-11-08	1980-11-08 10:27	19 km	The 1980 Eureka, California Earthquake
M6.3 1976-11-26	1976-11-26 11:19	42 km	67 km W of Trinidad, California
M6.0 1972-03-01	1972-03-01 09:28	11 km	105 km W of Ferndale, California
M6.2 1960-08-09	1960-08-09 07:39	10 km	219 km W of Ferndale, California
M6.0 1960-06-06	1960-06-06 01:17	15 km	near the coast of Northern California
M6.2 1959-07-24	1959-07-24 01:23	15 km	off the coast of Northern California
M6.1 1957-02-09	1957-02-09 16:38	15 km	172 km WSW of Crescent City, California
M6.4 1956-10-11	1956-10-11 16:48	10 km	155 km W of Ferndale, California
M6.4 1954-12-21	1954-12-21 19:56	15 km	The 1954 Eureka-Arcata, California Earthquake
M6.8 1954-11-25	1954-11-25 11:16	10 km	123 km W of Ferndale, California

Energy ratio uses the rule that one magnitude unit is about 32 times the energy. Magnitudes and locations are USGS values and can differ from national agencies. Older records are less complete and less precise.