There is this amazing app called NERV that, whenever there is a large earthquake anywhere in Japan, sends you an early warning push notification and an animated display with shockwaves emanating from the epicenter, plus a countdown timer for the first wave hitting you. The first it went off for me it felt like something out of sci-fi. I think I got 45 seconds this time before my apartment started shaking.
45 seconds is an incredible accomplishment. That’s a decent amount of heads up to get safer place. Obviously nerve wracking but great progress in alerts
No major tsunami is expected, local media reported initial waves were recorded as high as 40cm. The Japan Meteorological Agency forecasted up to 3m (10ft) waves.
I don't believe this earthquake is a big deal. Large earthquakes (M7.0+) happen in Japan several times a year, and given this happened in the middle of the ocean, I don't expect any major damage.
Yes, this is definitely only a medium deal, given that the tsunamis were mild. There is the usual concern that it might be a foreshock for a bigger quake but that's fairly unlikely.
Plenty of disruption (including a bunch of the shinkansen lines) and annoying evacuation up on the coast.
I will say that this was the longest swaying I've felt in my Kawasaki tower mansion apartment since moving here three years ago -- things were still moving about 5 minutes after it started.
I live in Aomori (Northernmost prefecture of Honshu) and we got the warning before the earthquake arrived by all the cellphones in the office going crazy at the same time. It was kind of funny, because we have a lot of new guys here who have never been to Japan before and it was their first earthquake ever xD
Depends on the location, the alert comes usually as soon as the initial tremors are registered. If you're at the epicenter, tough luck. For example, for me in Tokyo, the alert came 2 minutes before it hit, and even then, the actual earthquake was extremely subtle.
Maybe there should be a web site americaquake.gov just for American earthquakes.
Why did Mongo have an "EARTH QUAKE" button on his spaceship control console? Did he have buttons with the names of all the other obscure bodies he encountered, too?
Are they making recommendations on that page? Are they trying to "know better" than the Japanese government because they too keep track of earthquakes? I'd say you seem to lack critical thinking, but you'd probably claim the American government stole it from you.
Japan has their own communication platforms for this, they're not relying on a US government site. I'm in Japan on vacation, and I got notified of the earthquake within a minute of it happening on the NERV app, which is a common disaster alerting app here.
Evangelion is extremely popular in Japan, everybody and their dog knows it, so it is obviously the second option. From the official app website, https://nerv.app/en/
> The name and logo of "NERV" are used with the explicit permission of khara Inc., the copyright holder of the "Evangelion" series, and Groundworks Corporation, which manages the rights to the series.
Felt it all the way in Tokyo!
There is this amazing app called NERV that, whenever there is a large earthquake anywhere in Japan, sends you an early warning push notification and an animated display with shockwaves emanating from the epicenter, plus a countdown timer for the first wave hitting you. The first it went off for me it felt like something out of sci-fi. I think I got 45 seconds this time before my apartment started shaking.
https://nerv.app/en/
45 seconds is an incredible accomplishment. That’s a decent amount of heads up to get safer place. Obviously nerve wracking but great progress in alerts
I didn't feel a thing a bit south of Nagoya. Almost strange that there was nothing here, when you got shaking in Tokyo.
>NERV
Does it play appropriate Evangelion OST track depending on magnitude though?
It is straight up the same NERV, so it might
How do you use your 45 seconds?
If it's a big one and it's near you, you'd move away from the windows and heavy things that can fall, I suppose?
For me I always just turn on iPhone screen recording and marvel at this amazing app and wish we had something like this in California.
The earthquake magnitude was revised up to a 7.7
No major tsunami is expected, local media reported initial waves were recorded as high as 40cm. The Japan Meteorological Agency forecasted up to 3m (10ft) waves.
I don't believe this earthquake is a big deal. Large earthquakes (M7.0+) happen in Japan several times a year, and given this happened in the middle of the ocean, I don't expect any major damage.
Yes, this is definitely only a medium deal, given that the tsunamis were mild. There is the usual concern that it might be a foreshock for a bigger quake but that's fairly unlikely.
Plenty of disruption (including a bunch of the shinkansen lines) and annoying evacuation up on the coast.
I will say that this was the longest swaying I've felt in my Kawasaki tower mansion apartment since moving here three years ago -- things were still moving about 5 minutes after it started.
I live in Aomori (Northernmost prefecture of Honshu) and we got the warning before the earthquake arrived by all the cellphones in the office going crazy at the same time. It was kind of funny, because we have a lot of new guys here who have never been to Japan before and it was their first earthquake ever xD
was reading in a park in suburban tokyo a few years ago, notifications arrived for the noto peninsula earthquake.
kids in the park stared doing wobbly knee dance :D
felt the quake about 30sec later.
The one in 2024? I was in Tokyo at that time but we didn't get any notification nor felt anything :/
How much warning did you get? I mean in minutes or seconds?
Depends on the location, the alert comes usually as soon as the initial tremors are registered. If you're at the epicenter, tough luck. For example, for me in Tokyo, the alert came 2 minutes before it hit, and even then, the actual earthquake was extremely subtle.
In our case I guess we got the warning 10~20 seconds before the earthquake? I don't know, I didn't count it xD
Ruby Kaigi[1] starts soon in Hakodate, across the Tsugaru Strait in southern Hokkaido, ~200–250 km away. I hope everyone stays safe.[2]
[1]: https://rubykaigi.org/2026/
[2]: https://www.japan.travel/en/japan-safe-travel-information/ts...
Is this the Richter scale? I thought it was obsolete.
This one was weird, too, like being on a boat in mildly choppy water, not a violent shake at all.
In my experience (NZ) that means it was strong but distant.
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Because?
Here you have the same earthquake, but reported by Japan: https://www.data.jma.go.jp/multi/quake/quake_detail.html?eve...
As a European, I feel fine that American and Japanese governments report on this.
Maybe there should be a web site americaquake.gov just for American earthquakes.
Why did Mongo have an "EARTH QUAKE" button on his spaceship control console? Did he have buttons with the names of all the other obscure bodies he encountered, too?
https://www.youtube.com/watch?v=nqVgrkmRF8Y
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Are they making recommendations on that page? Are they trying to "know better" than the Japanese government because they too keep track of earthquakes? I'd say you seem to lack critical thinking, but you'd probably claim the American government stole it from you.
Well you could read the japanese reports, but they'd be in japanese
The US monitors things like this because tsunami danger to the west coast is a real if remote possibility.
Japan has their own communication platforms for this, they're not relying on a US government site. I'm in Japan on vacation, and I got notified of the earthquake within a minute of it happening on the NERV app, which is a common disaster alerting app here.
The creators of this app either didn't watch Evangelion or are huge fans. Hard to say which.
Evangelion is extremely popular in Japan, everybody and their dog knows it, so it is obviously the second option. From the official app website, https://nerv.app/en/
> The name and logo of "NERV" are used with the explicit permission of khara Inc., the copyright holder of the "Evangelion" series, and Groundworks Corporation, which manages the rights to the series.
Japan also obviously also monitors this.
https://nerv.app/en/
This kind of data is actually shared by governments with each other as well.
Science has no borders, much less disasters.
Here you go: https://earthquake.tenki.jp/bousai/earthquake/detail/2026/04...