A magnitude 3.8 earthquake shook Malibu and parts of Los Angeles’ Westside on Friday afternoon, as reported by the U.S. Geological Survey. The epicenter of the quake was located approximately 4.6 miles north of Point Dume, situated in the mountainous region above Malibu. This earthquake marks the seventh recorded seismic event in the area this year.
Described as bringing “weak” shaking (Level 3 on the Modified Mercalli Intensity Scale), the tremors were felt in various nearby areas, including Thousand Oaks, Calabasas, Woodland Hills, Canoga Park, Winnetka, and Reseda. Such shaking can be noticeable indoors, especially in upper levels of buildings, and it may cause vehicles to sway slightly.
Further out, a milder Level 2 intensity shaking may have been perceived by fewer people at rest in the broader San Fernando Valley, Santa Monica, and other parts of the Los Angeles Basin. Residents in Mar Vista reported feeling the shaking for about 10 to 15 seconds, reminiscent of a gentle nudge to furniture.
The epicenter’s location was notably close to a stronger magnitude 4.7 earthquake that occurred on September 12, which prompted many people, including Malibu’s mayor, to take cover. Another significant quake, measuring magnitude 4.6, rattled the same region on February 9, causing some disruptions in households.
This year has been exceptionally active in terms of seismic activity, with Southern California witnessing 15 independent sequences of at least one magnitude 4 earthquake or higher, the highest number recorded in 65 years. However, despite this surge in seismic events, experts are unable to predict when a major earthquake might occur. The last significant earthquake event in Los Angeles County was 30 years ago, when a magnitude 6.7 quake led to substantial damage and many casualties.
For residents seeking to enhance their earthquake preparedness, there is an opportunity to subscribe to the Unshaken newsletter, which provides actionable steps for emergency readiness, including information on earthquake kits and safety tips from seismologist Lucy Jones.
In conclusion, while the frequency of smaller earthquakes may be alarming, it emphasizes the importance of being prepared. With effective emergency plans and resources available, communities can better safeguard themselves against potential future seismic events.