Home › 1999 › California Earthquake

M7.1 earthquake, California Earthquake, 1999-10-16

MagnitudeM7.1mw

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.

Depth14 km

Time (UTC)1999-10-16 09:46

Rank in 199913 / 135among M6+

Rank since 19001203 / 14,458

Energy vs an M6×45approx.

The 1999 Hector Mine, California Earthquake · 34.60, -116.27

M6.5+ within 300 km (largest first)

1952 M7.5M7.5

1992 M7.3M7.3

2010 M7.2M7.2

2019 M7.1M7.1

1999 M7.1M7.1

1940 M6.9M6.9

1918 M6.7M6.7

1994 M6.7M6.7

1942 M6.6M6.6

1968 M6.6M6.6

1971 M6.6M6.6

1987 M6.6M6.6

Earlier M6+ within 300 km

Event	Time (UTC)	Depth	Place
M6.7 1994-01-17	1994-01-17 12:30	18 km	Northridge, California, earthquake
M6.3 1992-06-28	1992-06-28 15:05	4 km	The 1992 Big Bear, California Earthquake
M7.3 1992-06-28	1992-06-28 11:57	-0 km	The 1992 Landers, California Earthquake
M6.1 1992-04-23	1992-04-23 04:50	12 km	The 1992 Joshua Tree, California Earthquake
M6.6 1987-11-24	1987-11-24 13:15	11 km	The 1987 Superstition Hills, California Earthquake
M6.2 1987-11-24	1987-11-24 01:54	11 km	The 1987 Elmore Ranch, California Earthquake
M6.0 1986-07-08	1986-07-08 09:20	9 km	The 1986 North Palm Springs, California Earthquake
M6.3 1980-06-09	1980-06-09 03:28	6 km	5km SE of Alberto Oviedo Mota, B.C., MX
M6.4 1979-10-15	1979-10-15 23:16	15 km	The 1979 Imperial Valley Earthquake, California-Baja California
M6.6 1971-02-09	1971-02-09 14:00	9 km	1971 San Fernando Earthquake, 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.