Early Earthquake Warning System in iOS 5 for Japanese Users

Back in iOS 5 Beta 2, we had seen references to a "Quake Alert" notification embedded in iOS 5, as shown here:

quake
We weren't able to entirely explain or even activate the system, but despite the presence of english localization, it's reportedly intended for Japanese users according to 9to5Mac.

quakewarning
Japan's earthquake warning system was profiled by Time magazine earlier this year.

Japan has the most advanced earthquake early-warning system in the world. A nationwide online system launched in 2007, it detects tremors, calculates an earthquake's epicenter and sends out brief warnings from its 1,000-plus seismographs scattered throughout the country, one of the most earthquake-prone nations on the planet.

The need for such a warning system was underscored by the devastating 9.0 earthquake and subsequent tsunamis Japan experienced earlier this year. iOS 5 users reportedly have the option to receive these early warnings in iOS 5 at the very bottom of the iOS 5 Notification Center settings pane. We were unable to activate the system from a U.S. based iPhone. The system is reported to be a common feature on Japanese mobile phones.

Popular Stories

iPhone SE 4 Vertical Camera Feature

iPhone SE 4 Production Will Reportedly Begin Ramping Up in October

Tuesday July 23, 2024 2:00 pm PDT by
Following nearly two years of rumors about a fourth-generation iPhone SE, The Information today reported that Apple suppliers are finally planning to begin ramping up mass production of the device in October of this year. If accurate, that timeframe would mean that the next iPhone SE would not be announced alongside the iPhone 16 series in September, as expected. Instead, the report...
iPhone 17 Plus Feature

iPhone 17 Lineup Specs Detail Display Upgrade and New High-End Model

Monday July 22, 2024 4:33 am PDT by
Key details about the overall specifications of the iPhone 17 lineup have been shared by the leaker known as "Ice Universe," clarifying several important aspects of next year's devices. Reports in recent months have converged in agreement that Apple will discontinue the "Plus" iPhone model in 2025 while introducing an all-new iPhone 17 "Slim" model as an even more high-end option sitting...
Generic iPhone 17 Feature With Full Width Dynamic Island

Kuo: Ultra-Thin iPhone 17 to Feature A19 Chip, Single Rear Camera, Semi-Titanium Frame, and More

Wednesday July 24, 2024 9:06 am PDT by
Apple supply chain analyst Ming-Chi Kuo today shared alleged specifications for a new ultra-thin iPhone 17 model rumored to launch next year. Kuo expects the device to be equipped with a 6.6-inch display with a current-size Dynamic Island, a standard A19 chip rather than an A19 Pro chip, a single rear camera, and an Apple-designed 5G chip. He also expects the device to have a...
iPhone 16 Pro Sizes Feature

iPhone 16 Series Is Less Than Two Months Away: Everything We Know

Thursday July 25, 2024 5:43 am PDT by
Apple typically releases its new iPhone series around mid-September, which means we are about two months out from the launch of the iPhone 16. Like the iPhone 15 series, this year's lineup is expected to stick with four models – iPhone 16, iPhone 16 Plus, iPhone 16 Pro, and iPhone 16 Pro Max – although there are plenty of design differences and new features to take into account. To bring ...
icloud private relay outage

iCloud Private Relay Experiencing Outage

Thursday July 25, 2024 3:18 pm PDT by
Apple’s iCloud Private Relay service is down for some users, according to Apple’s System Status page. Apple says that the iCloud Private Relay service may be slow or unavailable. The outage started at 2:34 p.m. Eastern Time, but it does not appear to be affecting all iCloud users. Some impacted users are unable to browse the web without turning iCloud Private Relay off, while others are...
iPhone 17 Plus Feature Purple

iPhone 17 Rumored to Feature Mechanical Aperture

Tuesday July 23, 2024 9:32 am PDT by
Apple is planning to release at least one iPhone 17 model next year with mechanical aperture, according to a report published today by The Information. The mechanical system would allow users to adjust the size of the iPhone 17's aperture, which refers to the opening of the camera lens through which light enters. All existing iPhone camera lenses have fixed apertures, but some Android...

Top Rated Comments

Demosthenes X Avatar
169 months ago
"Receiving Quake Alerts may incur data charges and affect your battery life".

...and may save your life.
Score: 15 Votes (Like | Disagree)
Clark Kent Avatar
169 months ago
It's only in Japan because Japan has actually built the infrastructure required by putting thousands of seismographs around the country to detect early seismic waves (P-waves) that come before the main shaking (S-waves).

Until other countries install the sensors, they can't have a useful earthquake early-warning system.
Score: 13 Votes (Like | Disagree)
Rayfire Avatar
169 months ago
This is really a big help for them! Especially that some of us might have family, friends or acquaintances living there. Regardless, kudos to a great addition in iOS 5!
Score: 12 Votes (Like | Disagree)
doug in albq Avatar
169 months ago
That will be useful for the big quake. 100+ years from now!

Or 100 minutes, one never knows.
Score: 9 Votes (Like | Disagree)
Clark Kent Avatar
169 months ago
My wife's Docomo cell phone has the earthquake warning system built in. Anywhere between 5 and 20 seconds before the shaking starts, it will start to emit a really loud James Bond-esqe alarm that gets your heart rate pumping.

Regular Softbank phones have the same thing (all Japanese cell phone carriers offer it in their system) but the iPhone only has work-arounds to access it via apps.

It will be great to have it built into the OS.

Good work Apple.
Score: 8 Votes (Like | Disagree)
superstrikertwo Avatar
169 months ago
Would be nice to have this in the SF Bay area.
Score: 7 Votes (Like | Disagree)