Back to Back 2.5 Magnitude Earthquakes Hit Southern California

Two earthquakes struck Southern California in the past two days, both estimated at 2.5 magnitude, according to the United States Geological Survey (USGS).

The first earthquake struck near Santa Rosa Island in the Santa Barbara Channel on Sunday, December 28.

USGS reports at 3:44 p.m. the quake struck at approximately nine miles south-southeast of the island measuring at a 2.5 magnitude.

The second earthquake struck near Running Springs, between Lake Arrowhead and Big Bear, on Monday, December 29.

USGS reports at 5:26 a.m. the quake struck at approximately four miles north of Running Springs, also measuring at a 2.5 magnitude.

Additionally, a third earthquake was detected measuring magnitude 2.3 struck near Carpinteria on December 27, 2025, at 3:36 p.m., according to USGS.

The quake occurred about 3.7 miles south of Carpinteria, near the coastline, at a depth of approximately 0.13 miles. The agency initially measured the earthquake at magnitude 2.4 before revising it downward to 2.3.

There were no immediate reports of damage, injuries, or service disruptions associated with the earthquake.

Multiple Earthquakes Recorded in Recent Months

The Carpinteria and Southern California quakes follow a series of small earthquakes recorded across Santa Barbara County in recent months.

On November 27, a magnitude 3.2 earthquake was recorded in the region at a depth of 5.4 kilometers, making it one of the stronger local quakes reported in late 2025.

A magnitude 2.5 earthquake occurred near Santa Barbara Island on November 4 at a depth of 11 kilometers. That event was followed by a magnitude 3.2 quake in the same area on November 2, recorded at a depth of 8.3 kilometers, according to USGS data.

According to the USGS, California remains one of the most earthquake-prone states in the country, with Southern California experiencing frequent low-magnitude seismic activity given its complex network of fault lines. Most of these earthquakes are small and often go unnoticed by the public.

Earthquake Safety Preparedness

While no impacts were reported from Friday’s quake, emergency officials routinely remind residents to remain aware of standard earthquake preparedness practices, particularly in a seismically active region like Santa Barbara County.

Windows, heavy objects, and shelves should be avoided. Rushing outside during shaking can increase the risk of injury.

If outdoors, moving to an open area away from the building, tress and power lines is recommended. Drivers are advised to slow down and pull over to a safe location, and remain inside the vehicle until shaking stops.

Besides this, the USGS encourages households to secure heavy items, develop communication plans, keep emergency supplies handy, and safeguard important documents.

After an earthquake, residents are advised not to turn the gas lines back on until authorities confirm it is safe. Also, limit phone usage to emergencies to help keep lines open for first responders.