Monday’s 5.2 Temblor marks another success California earthquake early warning system, Users in some areas say they received an alert on their phones Before they feel shaken.
In some cases, the alarm provides a critical second of a critical second, which can be crucial in a major earthquake.
“That’s great! Great warning!!!” a resident told USGS’s Shakealert social media account on X. [shaking] The wave hits. well done! ”
Temblor is centered on Julian, a small mountain town in San Diego County.
Because the earthquake shakes from the sound speed of the rocks, which is slower than modern communication systems, some areas of Los Angeles have issued an alarm before shaking or even reaching the city. No significant damage or injury.
After the August 2024 earthquake, images of early warnings occurred in the earthquake.
(Robert de Groot/USGS)
The ShakeAlert Earthquake Warning System (in California, Oregon and Washington) is operated by the U.S. Geological Survey. The system relies on a series of seismic sensors to detect shaking. This information is then sent to the computer to determine if and where the alert is sent.
People in Camarillo, Manhattan Beach, Palm Springs, Riverside, the San Diego neighborhood of Rancho Peñasquitos, Santa Ana and southern Orange County said they got the earthquake early warning before the shaking started, according to posts on social media and interviews with local news outlets.
“The Corona del Mar here. Alarm was received about 5-10 seconds before a lot of vibrations. Great service.” One resident Posted on X.
“I got the alarm for 1 second before feeling it! I was in Palm Springs! I was impressed,” another User added.
“Shake Alert did it!! other.
The geologist at the California Geological Survey also received an early warning notice on his cell phone at the Los Angeles Geological Survey, “So we’re ready for the shaking,” a scientist Posted On social media.
One of the fastest ways people can get warnings for early earthquakes by downloading myshakeThis is a free app developed by the University of California, Berkeley to provide alerts in partnership with USGS and the Office of California Governor Emergency Services. The app can be downloaded to Android devices as well as iPhone, iPad and Mac computers.
Android phones also have Built-in earthquake warning application.
More than 500,000 people in California passed MyShake on December 5th Amplitude 7 earthquake hit 30 miles from the coast of Humboldt County; and a magnitude 5.7 earthquake occurred on December 9 concentrated About 50 miles southeast of Reno, it is widely felt in central California.
San Diego County also offers free SD Emergency Apps, which include Shakereadysd earthquake warning tool.
Some Angelenos, who alerted the alarm, said this is usually a fairly normal situation, especially for long-term residents. one person Posted on X She took the instructions to “drop. Cover” from the alarm “frankly” despite dozens of disasters.
But, as people get used to the alarm, this feeling can be reduced. For some people, it is helpful to know that the vibration they feel is actually an earthquake, so they can take protective actions such as falling under a table, covering and holding.
Early earthquake warnings are now common in seismic active areas around the world, including Japan, Mexico and Taiwan.
Minimum threshold for early earthquake warnings for Android phones and phones with MyShake or Shakereadysd apps installed. If the estimated magnitude of earthquakes is 4.5 or higher, they will trigger an alarm “Weak” – Defined as Level 3 on the modified Mercalli Strength Scale.
This intensity of shaking is noticeable indoors, especially on the upper floors of the building, and can cause the car to rock a little. Some people may liken this feeling indoors to the vibration of a passing truck.
People without a smartphone or without an early warning app can still get alerts on their phones, but only when they cast higher or higher shaking levels in their position. These alerts are sent through a wireless emergency alert system, similar to Amber alerts.
However, one disadvantage of relying on wireless emergency alerts is that they provide less information than the alerts generated by the application.
You can change settings on your iPhone to improve speed, accuracy and reliability of emergency alerts, Apple explain. To do this, you can turn on Local Awareness by going to Settings and then notifications. Scroll down to Government Alerts, then tap Emergency Alerts and navigate to the option.
In it website, MyShake recommends opening the app every month or so to keep it “fresh and ready to receive alerts. Not using the app for a long time can cause deep sleep to the app.”
MyShake believes that an easy way is to click on the app when it notifies you (without any urgent, shocking warning sounds) to learn about a big earthquake around the world, usually once every two weeks. “By clicking on this notification and opening the MyShake app, you can keep the app fresh without having to rely on your own reminders.”
MyShake is now available in six languages: English, Spanish, Tagalog, Korean, Vietnamese and Chinese – the last one is dubbed in Mandarin and uses traditional characters. MyShake will use the first language it supports from the device’s language and locale, but on iPhone you can change the language by going to Settings, then selecting the app and selecting MyShake, then selecting the preferred language.
Grace Toohey, an era worker, contributed to the report.
