M4.7 earthquake 174 km ENE of Miyako, Japan
A magnitude 4.7 earthquake struck 174 km ENE of Miyako, Japan on Sun, Aug 21, 2016, 1:08 AM JST (16:08 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.3 145 km E of Miyako, Japan. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2016-08-20 16:08:46 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 40.146° N, 143.881° E
- Region
- Japan
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 8.7 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.17
- Depth from
- Operator assigned
- Station coverage gap
- 178°
- Stations used
- 25
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 5 in the 60 days after this one and 6 in the 30 days before it.
After
- 5.2168 km ENE of Miyako, Japan · 3695 days ago · 10 km deep · 37 km away
- 5.2171 km ENE of Miyako, Japan · 3695 days ago · 10 km deep · 22 km away
- 5.2191 km E of Hachinohe, Japan · 3694 days ago · 10 km deep · 60 km away · felt by 4
- 5.3145 km E of Miyako, Japan · 3694 days ago · 6 km deep · 48 km away
- 4.1133 km E of Yamada, Japan · 3681 days ago · 23 km deep · 82 km away
Before
- 5.8169 km ENE of Miyako, Japan · 3695 days ago · 11 km deep · 23 km away · felt by 6
- 4.4181 km ENE of Miyako, Japan · 3695 days ago · 6 km deep · 12 km away
- 4.4184 km ENE of Miyako, Japan · 3695 days ago · 10 km deep · 10 km away
- 6.0170 km ENE of Miyako, Japan · 3696 days ago · 10 km deep · 32 km away · felt by 7
- 4.6156 km E of Yamada, Japan · 3696 days ago · 10 km deep · 75 km away · felt by 1
- 5.3137 km E of Yamada, Japan · 3696 days ago · 23 km deep · 71 km away · felt by 3
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10006ffk. Read Fri, Oct 2, 2026, 9:15 PM UTC.