July 20, 2007 Earthquake: Montclair, California, United States
A magnitude 4.2 earthquake struck Montclair, California, United States on July 20, 2007 at 11:42:22 UTC, 5 km below the surface.
Map
Where it struck, with the other significant earthquakes within 200 km. Circles are sized and colored by magnitude; select one for its page.
The earthquake
- Date
- July 20, 2007
- Time
- 11:42:22 UTC
- Place
- Montclair, California, United States
- Magnitude
- 4.2 (Mw)
- Focal depth
- 5 km (3 mi)
- Tsunami
- None recorded
- Epicenter
- 37.804° N, 122.193° W
- Country
- United States
The toll
- Damage
- Limited (under about $1 million)
Where the literature gives no number, NCEI records a description on a scale of 1 to 4, printed here in its words. Damage is in millions of US dollars of the year of the event, not adjusted for inflation.
What the record says
NCEI’s account, from the sources it cites.
Some buildings damaged and a gas line broke at Montclair. Power outages occurred at Oakland. Felt widely throughout the San Francisco Bay area. (reference #1053)
Other significant earthquakes nearby
Within 200 km, the deadliest first.
- April 18, 1906, San Francisco, California, United States
- October 18, 1989, Loma Prieta, California, United States
- October 21, 1868, Hayward,san Francisco, California, United States
- August 24, 2014, Napa, Vallejo, California, United States
- October 2, 1969, Santa Rosa, California, United States
- May 15, 1851, Northern, California, United States
- October 22, 1854, Northern, California, United States
- October 22, 1855, San Francisco, California, United States
- February 10, 1869, San Francisco, California, United States
- February 13, 1869, San Francisco, California, United States
- September 24, 1859, Half Moon Bay, California, United States
- June 10, 1836, California, United States
- June 1838, San Francisco,san Jose,santa Clara, California, United States
- January 24, 1980, Livermore, California, United States
- February 15, 1856, Northern, California, United States
More
Significant earthquakes of 2007The 2000sEvery quake the USGS located in 2007Recent earthquakes near hereThis day in weather history
Sources
Significant earthquakes from NOAA’s National Centers for Environmental Information, Global Historical Hazard Database, cited as NCEI/WDS, doi:10.7289/V5PN93H7. Public domain. Read 2026-09-24. NCEI earthquake 7596.