4.6 quake last night near Santa Cruz. That's the largest reported this year in California. Seems like seismic activity has been increasing lately.
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Just had an earthquake in Los Angeles
- Thread starter e-beach
- Start date
The fingers
Legend
Earthquake Shakes Inland Empire Monday Morning: Did You Feel It?
The earthquake was reported shortly after 7:45 a.m.
The fingers
Legend
Kind of hard not to notice it if you’re in the area. (not Area 51)
e-beach
Minor legend
5.2 is where it starts to get big. Anything over 5 starts to become serious borderline dangerous.
The most serious quake that I have been in was the 1994 Northridge earthquake that was 6.7. It was a monster that distorted the beach front apartment building where I was living. Among the extensive damage to the building was the 5 stories of un-reinforced bricks that pealed off the back of the building and cascaded down through my friends ceiling coming within a feet of crushing my friend, his wife and 1 year old child to death.
At first light the Santa Monica building and safety condemned the building.
The most serious quake that I have been in was the 1994 Northridge earthquake that was 6.7. It was a monster that distorted the beach front apartment building where I was living. Among the extensive damage to the building was the 5 stories of un-reinforced bricks that pealed off the back of the building and cascaded down through my friends ceiling coming within a feet of crushing my friend, his wife and 1 year old child to death.
At first light the Santa Monica building and safety condemned the building.
The fingers
Legend
Brawley rockin’ the southern San Andreas
e-beach
Minor legend
OlderGiantFan
Regular
it's coming...
The fingers
Legend
Lots of recent small ones throughout SoCali which is supposed to lessen the stress which could lead to the big one.
The fingers
Legend
Petrolia, Petrolia. A ways from la la land but quite impressive on the map.
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e-beach
Minor legend
California’s tectonic systems at highest levels of stress in 1,000 years – study
San Andreas and San Jacinto fault systems in ‘critically loaded state’, increasing chance of ‘big one’ quake in futureDani Anguiano in Los Angeles
Tue 16 Jun 2026 16.25 EDT
Prefer the Guardian on Google
Southern California’s San Andreas and San Jacinto fault systems are at their highest levels of tectonic stress in 1,000 years in what scientists describe as a “critically loaded state”, according to a study published earlier this month.
“Our results show that stress levels on multiple fault segments are now at or above the highest values seen in the past millennium and that the region may be capable of a large through-going rupture involving both fault systems,” Liliane Burkhard, the lead author of the study published in the Journal of Geophysical Research: Solid Earth, said in a statement.
Cajon Pass, which sits at the junction of the faults, could play a key role, acting as an “earthquake gate” that can block large ruptures from traveling between the faults or involve both systems in one event, according to the research. It has been more than a century since the last major event, and stress “has continued to accumulate and is now at unprecedented levels”, which has increased the chances of a large quake in the future.
“The conditions that determine whether the ‘earthquake gate’ at Cajon Pass opens or stays closed appear to be related to how closely the stress levels on the two fault systems are aligned with each other at the time of rupture,” said Burkhard.
“Right now, with stress at historically high levels across the region and more than 160 years elapsed since the last major rupture, the system is in a critically loaded state.”
The team of scientists at the University of Hawaii at Mānoa used a computer model to see how stress accumulates and releases in the fault systems and input 1,000 years of earthquake history to simulate how much stress is currently present. Their research found that Cajon Pass could “facilitate a joint rupture of both the San Andreas and San Jacinto faults simultaneously”, and have impacts across southern California.
Their research does not predict when such a quake might happen, but is necessary to better understand the risks, Burkhard said.
“What we can say is that the system is critically stressed, and that physics-based models like this one give us a clearer picture of the range of scenarios we should be prepared for.”
Californians have long been preparing themselves for the “big one”. The last major devastating and destructive quake to hit the state was 1994’s Northridge earthquake in Los Angeles. The disaster, which unfolded just before dawn, destroyed 87,000 homes and businesses and killed more than 60 people.
The fingers
Legend
yooper2001
Established
We can only hope......
I got the warning alert on my phone, but I did not feel anything here. That's about 100mi away.
The news showed a grocery store up there that had isles filled with broken jars of stuff.
The news showed a grocery store up there that had isles filled with broken jars of stuff.
OlderGiantFan
Regular
It was Venezuela's time this week. You get a reprieve.
Some info- Venezuela is not on the Pacific Ring of Fire. The country is located in northern South America, where it sits directly on the boundary between the Caribbean plate and the South American plate
The Pacific Ring of Fire is responsible for about 90% of the world's earthquakes, which occur primarily along the western coasts of the Americas. tic tok tic tok
Some info- Venezuela is not on the Pacific Ring of Fire. The country is located in northern South America, where it sits directly on the boundary between the Caribbean plate and the South American plate
The Pacific Ring of Fire is responsible for about 90% of the world's earthquakes, which occur primarily along the western coasts of the Americas. tic tok tic tok
e-beach
Minor legend
tic tok tic tok...................
OlderGiantFan
Regular
Indeed. Why do people live in concrete buildings in such cities, knowing the dangers? Campi Flegrei, the Italian Super volcano has a city built in it's caldera lol. It's active too. Imagine building a city and suburbs inside the Yellowstone caldera? Where do you draw the line between acceptable risk and plain recklessness? I don't know but no job is worth having thousands of tons of reinforced concrete fall on top of me. They talk about that "frog in a pot" analogy and this sort of thing is a good example of it.
There was a 7+ quake in Japan too. Minor damage and no fatalities. Better building codes make a big difference.
The fingers
Legend
Too far away to feel it here but might be on the southern end of the San Andreas under water? Dunno.
ktla.com
6.0-magnitude earthquake strikes in the Gulf of California
A 6.0-magnitude earthquake hit the Gulf of California Monday afternoon, according to the U.S. Geological Survey. The earthquake struck at 12:45 p.m. off the coast of La Paz, Mexico, a popular touri…
ktla.com
The fingers
Legend
NorCali is rockin’, while SoCali’s burnin’
It was a 3.8 followed by a 4.4 about 3 hours later. The aftershock was bigger than the first one, which is kind of unusual.
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