Major earthquake
M7.1 Earthquake — The 1999 Hector Mine, California Earthquake
1999-10-16 09:46 UTC · 34.60°, -116.27°
A magnitude 7.1 (major) earthquake struck The 1999 Hector Mine, California Earthquake on 1999-10-16 09:46 UTC, at a depth of 14 km. See it live on Earth Live's real-time 3D globe.
M7.1
Magnitude
14 km
Depth
673.6K t
TNT equivalent
25125
Felt reports
VIII
Max intensity (MMI)
Source: USGS event page. The TNT equivalent is computed from the magnitude with the standard Gutenberg–Richter energy relation; all other figures are USGS's own.
This area's earthquake history
In the year before this quake, USGS recorded 629 earthquakes of magnitude 2.5 or more within 300 km.
Strongest recorded within 300 km since 1900:
- M7.5 — The 1952 Kern County, California Earthquake · 1952-07-21
- M7.3 — The 1992 Landers, California Earthquake · 1992-06-28
- M7.2 — The 2010 Sierra El Mayor, B.C., Mexico Earthquake · 2010-04-04
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