In California’s famous beaches, mountains and metropolitan areas, there is a sinister network of earthquake faults – some infamous that their names are burned to the state’s collective consciousness.
Of course, there is the mighty San Andreas whose huge slip caused the 1906 San Francisco earthquake, whose infamous triggered multiple movies, video games, books, T-shirts and collectibles.
Also well known in Los Angeles is the Newport-Eaglewood fault, which released the 1933 Long Beach earthquake, the deadliest Temblor in modern Southern California history.
However, the large earthquake faults that moved Monday morning in the mountains of San Diego County were relatively obscure. But Elsinore’s fault is part of a larger earthquake zone that experts fear and believe more people should know.
according to California Institute of Technology, But “in history, it has been one of the quietest people.”
However, this inactivity masks the devastating effectiveness. The fault is able to produce a magnitude 7.8 earthquake, said Lucy Jones, a seismologist at Caltech research assistant.
“The fault in Elsinore is one of the major risks in Southern California,” Jones said.
The Elsinore fault zone passes from the Sonoran Desert in Imperial County across the western edge of the Riverside County community, such as Temecula, Murrieta and Lake Elsinore.
When it reaches the corona it is divided into two parts – the fault of Chino, heading towards Chino Mountain. The faults at Whittier are Whittier, La Habra Heights, Hacienda Heights and Rowland Heights and Whittier in Orange County, La Habra, Brea and Yorba Linda.
A particularly frightening and reasonable prospect would be an earthquake that would pass the fault in northwest Elsinore over Whittier’s fault. That would “pour all the energy directly into the Los Angeles Basin. It’s one of the terrible earthquakes,” Jones said.
According to an assumption Imagine Published by the U.S. Geological Survey, a magnitude 7.8 earthquake in the Whittier Wurd of the Elsinore fault zone could cause “violence” Shiver – Enough to damage buildings and even shock their foundations – in the relatively large southern regions, including El Monte, Hacienda Heights, Rowland Heights, Pico Rivera, Whittier, La Habra, Brea Habra, Brea, Yorba Linda, placenia, Placenia, Placenia, Chino Hills, Corona, Elsinore, Elsinore Lake Elsinore, Murrieta and Murrieta and Murrieta and Murrieta and Temecula.
This is more Part of the San Fernando Valley In the 1994 Northridge earthquake, “violent” shaking, which was magnitude 6.7.
“Severe” shaking — enough to topple chimneys and greatly damage poorly built buildings — may be felt a bit farther away from the ruptured fault, including in downtown LA, East LA, Long Beach, Alhambra, West Covina, Pomona, Ontario, Riverside, Downey, Norwalk, Santa Ana, Garden Grove, Anaheim, Orange, Irvine and Lake Forest.
A “very strong” tremor can also be felt, including the San Fernando Valley, the West Side, South Bay, Los Angeles and Port of Long Beach, Orange County Coast, Rancho Cucamonga, Fortana and San Bernardino.
In modern times, no earthquake is so powerful, or has triggered such a huge destructive swing that swept through such a wide range of California.
The last magnitude 7.9 earthquake in Southern California occurred in 1857 when San Andreas broke between Monterrey and Los Angeles County. The last equivalent Temblor in northern California was the 1906 earthquake that ruptured San Andreas between Humboldt and Santa Cruz counties and destroyed much of San Francisco.
The faults in Elsinore can also be considered as siblings of San Andreas, according to Kate Scharer, a research geologist with the U.S. Geological Survey. The San Jacinto fault zone begins at Cajon Pass, travels southeast through San Bernardino and Riverside counties before entering Imperial County.
These three faults move at relatively fast speeds on average – each fault is more likely to break in the span of human life span. San Andreas and San Jacinto move at an average of 20 mm per year, while Elsinore moves at a smaller clip of about 5 mm per year. By contrast, the infamous Newport-Igwood fault moves slowly, 1 mm per year.
“There are some risks, which may be the next one,” Scharer said of a big risk in the Elsinore fault area. “We are very concerned about San Andreas, but we have the positive flaws of the whole accumulated stress.”
Monday’s 5.2 temblor amplitude was uneasy to remind the power of the failure. Although the earthquake near Julian was spread across the area with Julian, no injuries or major damage was reported. But this may not be the case next time, especially if the earthquake is closer to the major cities.
Monday’s earthquake caused at least nine aftershocks of magnitude 2.5 or higher, one of which was more than 4 hours later.
Monday’s 5.2 earthquake occurred a magnitude 3.3 earthquake that occurred a day ago and is now considered the foreshell.
this San Jacinto fault zone It is very dangerous in itself – walking through the heart of the Inland Empire under many densely populated areas. The faults in San Jacinto and San Andreas may rupture together in a magnitude 7.5 earthquake.
California faces major risks of a major earthquake as it lies at the edge of the tectonic plate boundary, where the Pacific plate (sits in San Diego, Los Angeles and Santa Barbara) gradually moves northwest to northwest relative to the North American plate, nestled on San Francisco, the Central Valley and Big Bear Lake.
This strain has accumulated for decades and centuries and is eventually released in the form of earthquakes around the boundaries of the tectonic plates.
Elsinore is a long mistake. The longer the rupture occurs during an earthquake, the more seismic energy it produces.
“The analogy is like an instrument – a little bit small kazoo, you can’t make a loud noise,” Schaler said. “But if you go to the oboe… your voice can make a louder sound because it’s a bigger instrument, so basically more energy can be pumped through that system.”
Some of California’s largest cities have made great strides in demanding renovations of earthquake-vulnerable buildings, but still have vulnerability. era investigation The November-public discovery shows that many Southern California suburbs have no active plans to require fragile apartment buildings (called “Soft Stories”) to remodel the earthquake.
One particular dangerous attraction is the Inland Empire, where brick buildings—the danger seems so dangerous that Los Angeles ordered them to fix or demolish them decades ago—a threat despite the fault zone below the area.
Another risk may be Flawed Steel frame buildings need to be renovated in several cities such as Torrance, Santa Monica and West Hollywood, but not in Los Angeles.
Los Angeles and Orange County have little experience with severe damage to the earthquakes of the previous generation.
Since 1998, under Los Angeles and Orange County, there have been only magnitude 5 or greater earthquakes. That was 2014 Amplitude 5.1 earthquake centered on Brea, which results in more than $$2.5 million damage In that city, Fullerton and Lahabra.
In the 2008 5.4 Chino Hills earthquake, centered on San Bernardino County, but only east of Los Angeles and Orange County, this had little damage.
