After a major earthquake in Japan, the ground keeps moving: aftershocks are smaller quakes triggered as the crust adjusts around the fault that ruptured. They are most frequent right after the mainshock and taper off over days to months. This page tracks recent seismic activity across Japan live, so you can follow an aftershock sequence as it happens. For instant alerts the moment a new aftershock strikes near you, the free QuakeMate earthquake alert app sends real-time push notifications.
Recent earthquakes in Japan
- 4.669 km ESE of Takahagi, Japan7 hours ago
- 5.7106 km ENE of Hasaki, Japan7 hours ago
- 4.470 km S of Yudomari, Japan10 hours ago
- 4.485 km NE of Hasaki, Japan14 hours ago
- 4.543 km E of Onagawa Chō, Japan16 hours ago
- 3.5NEAR EAST COAST OF HONSHU, JAPAN18 hours ago
- 3.0KYUSHU, JAPAN1 day ago
- 4.7137 km E of Miyako, Japan1 day ago
- 4.511 km W of Honmachi, Japan1 day ago
- 3.0KYUSHU, JAPAN1 day ago
- 3.9NEAR EAST COAST OF HONSHU, JAPAN1 day ago
- 3.2EASTERN HONSHU, JAPAN1 day ago
Aftershocks in Japan - FAQ
Are there aftershocks in Japan right now?
Yes. 6 earthquakes have been recorded in Japan in the last 24 hours. The live feed above lists each one as it is detected, so you can watch an aftershock sequence unfold in real time.
How long do aftershocks last after a big earthquake in Japan?
Aftershocks are most frequent in the hours and days right after the mainshock and taper off over time, but a large earthquake can produce aftershocks for months. Their number and size follow well-known patterns (Omori and Bath laws), so activity gradually declines even though individual aftershocks can still be strongly felt.
Can I get an alert for the next aftershock in Japan?
Yes. Turn on browser notifications above to get a heads-up when a new quake is detected near Japan, or install the free QuakeMate app for wake-you-up critical alerts with custom magnitude and region rules.