1933 Long Beach earthquake
The 1933 Long Beach earthquake took place on March 10 at 5:54 P.M. PST south of downtown Los Angeles. The epicenter was offshore, southeast of Long Beach, California, on the Newport–Inglewood Fault. The earthquake had a magnitude estimated at 6.4 Mw, and a maximum Mercalli intensity of VIII (Severe). Damage to buildings was widespread throughout Southern California. It resulted in 115 to 120 fatalities and an estimated $40 million worth of property damage, equivalent to $941 million in 2023. The majority of the fatalities resulted from people running out of buildings exposing themselves to the falling debris.
Damage to the John Muir School, Pacific Avenue, Long Beach | |
Los Angeles | |
| UTC time | 1933-03-11 01:54:00 |
|---|---|
| ISC event | 905457 |
| USGS-ANSS | ComCat |
| Local date | March 10, 1933 |
| Local time | 5:54 P.M. PST |
| Magnitude | 6.4 Mw |
| Depth | 10 km (6.2 mi) |
| Epicenter | 33.631°N 118.000°W |
| Fault | Newport-Inglewood Fault |
| Type | Strike-slip |
| Areas affected | South Coast (California) United States |
| Total damage | $40 million |
| Max. intensity | MMI VIII (Severe) |
| Peak acceleration | 0.22 g |
| Peak velocity | 20 cm/s (est) |
| Tsunami | No |
| Aftershocks | M5.4 on Oct 2 1933 |
| Casualties | 115–120 killed |
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