M 6.7 earthquake – Northridge, California, earthquake
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Local time: Jan 17, 1994 · 04:30 (UTC-8)
StrongShallow · 18 km
Reviewed by a seismologist
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- Magnitude
- 6.7moment magnitude (mw)
- Depth
- 18 kmShallow earthquake
- Epicenter
- 34.213, -118.53720 km from Santa Clarita
- Energy released
- 169 kilotons of TNTabout 11 × Hiroshima
- Felt reports
- 12,996"Did You Feel It?" responses
- Shaking intensity
- 8.8max. instrumental (MMI)
- Aftershocks
- 20M2.5+ within 49 km, up to 60 days
- Significance
- 1,541USGS score, 0–1,000+
Not rare around here
An earthquake at least as strong struck within 300 km on Jun 28, 1992.
How strong was it?
Strong earthquake. It released 169 kilotons of TNT, 355 times the energy of a magnitude 5.0. Bars use the magnitude scale: every step is about 32 times more energy.
Aftershocks
20 earthquakes of M2.5+ within 49 km in the 60 days after.
- 5.9 1km ENE of Granada Hills, California Jan 17, 1994
- 4.9 3km N of Northridge, California Jan 17, 1994
- 4.8 5km N of Granada Hills, California Jan 17, 1994
- 5.2 9km N of Chatsworth, California Jan 17, 1994
- 4.6 2km NW of Northridge, California Jan 17, 1994
- 4.7 4km NNW of Pacoima, California Jan 17, 1994
- 4.8 10km SSW of Valencia, California Jan 17, 1994
- 4.6 4km WSW of Northridge, California Jan 17, 1994
- 4.8 6km NE of Chatsworth, California Jan 17, 1994
- 5.6 7km NNE of Simi Valley, California Jan 17, 1994
The strongest earthquakes within 300 km
Since 1900, around United States.
- 7.5 The 1952 Kern County, California Earthquake Jul 21, 1952
- 7.3 The 1992 Landers, California Earthquake Jun 28, 1992
- 7.1 Ridgecrest Earthquake Sequence Jul 6, 2019
- 7.1 The 1999 Hector Mine, California Earthquake Oct 16, 1999
- 6.9 The 1927 Lompoc, California Earthquake Nov 4, 1927
- 6.8 The 1925 Santa Barbara, California Earthquake Jun 29, 1925
- 6.7 The 1983 Coalinga, California Earthquake May 2, 1983
- 6.7 The 1918 San Jacinto, California Earthquake Apr 21, 1918