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The 2008 Chino Hills earthquake occurred at 11:42:15 am PDT (18:42:15 UTC) on July 29 in Southern California. The epicenter of the magnitude 5.4 earthquake was in Chino Hills, c. 28 miles (45 km) east-southeast of downtown Los Angeles. Movement on an oblique-slip fault resulted in a maximum Mercalli intensity of VI ( Strong ).
Seismogram of the earthquake. The earthquake measured 6.4 on the moment magnitude scale, and had a maximum Mercalli intensity of VIII (Severe). It came exactly a year after a 6.2 magnitude earthquake struck onshore in the Cape Mendocino area on December 20, 2021, [7] causing only minor damage. [8]
The earthquake was the most powerful earthquake in Southern California since the 2008 Chino Hills earthquake which had a moment magnitude of 5.4. Its epicenter was 1 mi (1.6 km) east of La Habra and its hypocenter was 3.2 mi (5.1 km) deep. Initial reports placed the magnitude at 5.3, however it was later downgraded to magnitude 5.1.
Brianna Taylor. May 12, 2023 at 3:59 PM. Some residents felt the moderate earthquake Thursday that jolted parts of Northern California while others were completely oblivious to the buildings that ...
Magnitude of the earthquake and aftershocks. The 1994 Northridge earthquake affected the Los Angeles area of California on January 17, 1994, at 04:30:55 PST. The epicenter of the moment magnitude 6.7 ( Mw) blind thrust earthquake was beneath the San Fernando Valley. [ 3] Lasting approximately 8 seconds and achieving the largest peak ground ...
A ShakeAlert message was sent to cellphone users in Sacramento County and the surrounding area just before 9:30 a.m. on Wednesday, July 18, 2023, for a magnitude-4.1 earthquake near Isleton.
A rupture of a small portion of the Puente Hills thrust fault caused the magnitude 5.9 Whittier Narrows earthquake, which occurred on Oct. 1, 1987, with an epicenter in Rosemead. That earthquake ...
1952 Kern County earthquake. / 34.86; -119.10. The 1952 Kern County earthquake occurred on July 21 in the southern San Joaquin Valley and measured 7.3 on the moment magnitude scale. The main shock occurred at 4:52 am Pacific Daylight Time (11:52 UTC ), killed 12 people, injured hundreds more and caused an estimated $60 million in property damage.